| CCI | SRGID | STIGID | SRG Requirement | Requirement | SRG VulnDiscussion | VulnDiscussion | Status | SRG Check | Check | SRG Fix | Fix | Severity | Mitigation | Artifact Description | Status Justification |
| V-56571 | SRG-OS-000001-GPOS-00001 | TBD - Assigned by DISA after STIG release | The operating system must provide automated mechanisms for supporting account management functions. | Enterprise environments make account management challenging and complex. A manual process for account management functions adds the risk of a potential oversight or other errors. A comprehensive account management process that includes automation helps to ensure accounts designated as requiring attention are consistently and promptly addressed. Examples include, but are not limited to, using automation to take action on multiple accounts designated as inactive, suspended or terminated, or by disabling accounts located in non-centralized account stores such as multiple servers. This requirement applies to all account types, including individual/user, shared, group, system, guest/anonymous, emergency, developer/manufacturer/vendor, temporary, and service. The automated mechanisms may reside within the operating system itself or may be offered by other infrastructure providing automated account management capabilities. Automated mechanisms may be composed of differing technologies that, when placed together, contain an overall automated mechanism supporting an organization's automated account management requirements. Account management functions include: assigning group or role membership; identifying account type; specifying user access authorizations (i.e., privileges); account removal, update, or termination; and administrative alerts. The use of automated mechanisms can include, for example: using email or text messaging to automatically notify account managers when users are terminated or transferred; using the information system to monitor account usage; and using automated telephonic notification to report atypical system account usage. | |||||||||||
| CCI-000016 | SRG-OS-000002-GPOS-00002 | TBD - Assigned by DISA after STIG release | The operating system must automatically remove or disable temporary user accounts after 72 hours. | CCE-82474-8: Assign Expiration Date to Temporary Accounts | If temporary user accounts remain active when no longer needed or for an excessive period, these accounts may be used to gain unauthorized access. To mitigate this risk, automated termination of all temporary accounts must be set upon account creation. Temporary accounts are established as part of normal account activation procedures when there is a need for short-term accounts without the demand for immediacy in account activation. If temporary accounts are used, the operating system must be configured to automatically terminate these types of accounts after a DoD-defined time period of 72 hours. To address access requirements, many operating systems may be integrated with enterprise-level authentication/access mechanisms that meet or exceed access control policy requirements. | Temporary accounts are established as part of normal account activation
procedures when there is a need for short-term accounts. In the event
temporary accounts are required, configure the system to
terminate them after a documented time period. For every temporary account, run the following command to set an expiration date on
it, substituting USER and YYYY-MM-DD
appropriately:
$ sudo chage -E YYYY-MM-DD USERYYYY-MM-DD indicates the documented expiration date for the account. For U.S. Government systems, the operating system must be configured to automatically terminate these types of accounts after a period of 72 hours. |
Applicable - Configurable | Verify the operating system automatically removes or disables local temporary user accounts after 72 hours. If it does not, this is a finding. | Verify that temporary accounts have been provisioned with an expiration date
of 72 hours. For every temporary account, run the following command to
obtain its account aging and expiration information:
$ sudo chage -l temporary_account_nameVerify each of these accounts has an expiration date set within 72 hours or as documented. Is it the case that any temporary accounts have no expiration date set or do not expire within 72 hours? |
Configure the operating system to automatically remove or disable local temporary user accounts after 72 hours. | Temporary accounts are established as part of normal account activation
procedures when there is a need for short-term accounts. In the event
temporary accounts are required, configure the system to
terminate them after a documented time period. For every temporary account, run the following command to set an expiration date on
it, substituting USER and YYYY-MM-DD
appropriately:
$ sudo chage -E YYYY-MM-DD USERYYYY-MM-DD indicates the documented expiration date for the account. For U.S. Government systems, the operating system must be configured to automatically terminate these types of accounts after a period of 72 hours. |
medium | |||
| CCI-000018 | SRG-OS-000004-GPOS-00004 | TBD - Assigned by DISA after STIG release | The operating system must audit all account creations. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems may be integrated with enterprise level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account creation. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account creation. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000018 | SRG-OS-000004-GPOS-00004 | TBD - Assigned by DISA after STIG release | The operating system must audit all account creations. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems may be integrated with enterprise level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account creation. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account creation. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000018 | SRG-OS-000004-GPOS-00004 | TBD - Assigned by DISA after STIG release | The operating system must audit all account creations. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems may be integrated with enterprise level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account creation. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account creation. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000018 | SRG-OS-000004-GPOS-00004 | TBD - Assigned by DISA after STIG release | The operating system must audit all account creations. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems may be integrated with enterprise level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account creation. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to automatically audit account creation. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000018 | SRG-OS-000004-GPOS-00004 | TBD - Assigned by DISA after STIG release | The operating system must audit all account creations. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems may be integrated with enterprise level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account creation. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account creation. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000018 | SRG-OS-000004-GPOS-00004 | TBD - Assigned by DISA after STIG release | The operating system must audit all account creations. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems may be integrated with enterprise level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account creation. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account creation. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000018 | SRG-OS-000004-GPOS-00004 | TBD - Assigned by DISA after STIG release | The operating system must audit all account creations. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems may be integrated with enterprise level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account creation. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account creation. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-86931-3: Configure the Use of the pam_faillock.so Module in the /etc/pam.d/password-auth File. | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | The pam_faillock.so module must be loaded in preauth in /etc/pam.d/password-auth. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | Verify the pam_faillock.so module is present in the "/etc/pam.d/password-auth" file: $ sudo grep pam_faillock.so /etc/pam.d/password-auth auth required pam_faillock.so preauth auth required pam_faillock.so authfail account required pam_faillock.so Is it the case that the pam_faillock.so module is not present in the "/etc/pam.d/password-auth" file with the "preauth" line listed before pam_unix.so? | Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | The pam_faillock.so module must be loaded in preauth in /etc/pam.d/password-auth. | medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-86916-4: Configure the Use of the pam_faillock.so Module in the /etc/pam.d/system-auth File. | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | The pam_faillock.so module must be loaded in preauth in /etc/pam.d/system-auth. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | Verify the pam_faillock.so module is present in the "/etc/pam.d/system-auth" file: $ sudo grep pam_faillock.so /etc/pam.d/system-auth auth required pam_faillock.so preauth auth required pam_faillock.so authfail account required pam_faillock.so Is it the case that the pam_faillock.so module is not present in the "/etc/pam.d/system-auth" file with the "preauth" line listed before pam_unix.so? | Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | The pam_faillock.so module must be loaded in preauth in /etc/pam.d/system-auth. | medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-86248-2: An SELinux Context must be configured for the pam_faillock.so records directory | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | The dir configuration option in PAM pam_faillock.so module defines where the lockout records is stored. The configured directory must have the correct SELinux context. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | If the system does not have SELinux enabled and enforcing a targeted policy, or if the pam_faillock.so module is not configured for use, this requirement is not applicable. Verify the location of the non-default tally directory for the pam_faillock.so module with the following command: $ sudo grep -w dir /etc/security/faillock.conf dir = /var/log/faillock Check the security context type of the non-default tally directory with the following command: $ sudo ls -Zd /var/log/faillock unconfined_u:object_r:faillog_t:s0 /var/log/faillock Is it the case that the security context type of the non-default tally directory is not "faillog_t"? | Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | The dir configuration option in PAM pam_faillock.so module defines where the lockout records is stored. The configured directory must have the correct SELinux context. | medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-86099-9: Account Lockouts Must Be Logged | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | PAM faillock locks an account due to excessive password failures, this event must be logged. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | Verify the "/etc/security/faillock.conf" file is configured to log user name information when unsuccessful logon attempts occur: $ sudo grep audit /etc/security/faillock.conf audit Is it the case that the "audit" option is not set, is missing or commented out? | Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | PAM faillock locks an account due to excessive password failures, this event must be logged. | medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-80667-9: Lock Accounts After Failed Password Attempts | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | This rule configures the system to lock out accounts after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. Ensure that the file /etc/security/faillock.conf contains the following entry: deny = <count> Where count should be less than or equal to and greater than 0. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is configured to lock an account after
unsuccessful logon attempts with the command:
$ grep 'deny =' /etc/security/faillock.confdeny = . Is it the case that the "deny" option is not set to "" or less (but not "0"), is missing or commented out? |
Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | This rule configures the system to lock out accounts after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. Ensure that the file /etc/security/faillock.conf contains the following entry: deny = <count> Where count should be less than or equal to and greater than 0. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-80668-7: Configure the root Account for Failed Password Attempts | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | This rule configures the system to lock out the root account after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is configured to lock the root account after
unsuccessful logon attempts with the command:
$ grep even_deny_root /etc/security/faillock.confeven_deny_root Is it the case that the "even_deny_root" option is not set, is missing or commented out? |
Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | This rule configures the system to lock out the root account after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-86067-6: Lock Accounts Must Persist | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | This rule ensures that the system lock out accounts using pam_faillock.so persist
after system reboot. From "pam_faillock" man pages:
Note that the default directory that "pam_faillock" uses is usually cleared on system boot so the access will be reenabled after system reboot. If that is undesirable, a different tally directory must be set with the "dir" option.pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. The chosen profile expects the directory to be . |
Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | To ensure the tally directory is configured correctly, run the following command:
$ sudo grep 'dir =' /etc/security/faillock.confThe output should show that dir is set to something other than "/var/run/faillock" Is it the case that the "dir" option is not set to a non-default documented tally log directory, is missing or commented out? |
Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | This rule ensures that the system lock out accounts using pam_faillock.so persist
after system reboot. From "pam_faillock" man pages:
Note that the default directory that "pam_faillock" uses is usually cleared on system boot so the access will be reenabled after system reboot. If that is undesirable, a different tally directory must be set with the "dir" option.pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. The chosen profile expects the directory to be . |
medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-80669-5: Set Interval For Counting Failed Password Attempts | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | Utilizing pam_faillock.so, the fail_interval directive configures the system to lock out an account after a number of incorrect login attempts within a specified time period. Ensure that the file /etc/security/faillock.conf contains the following entry: fail_interval = <interval-in-seconds> where interval-in-seconds is or greater. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | To ensure the failed password attempt policy is configured correctly, run the following command:
$ grep fail_interval /etc/security/faillock.confThe output should show fail_interval = <interval-in-seconds> where interval-in-seconds is or greater. Is it the case that the "fail_interval" option is not set to "" or less (but not "0"), the line is commented out, or the line is missing? |
Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | Utilizing pam_faillock.so, the fail_interval directive configures the system to lock out an account after a number of incorrect login attempts within a specified time period. Ensure that the file /etc/security/faillock.conf contains the following entry: fail_interval = <interval-in-seconds> where interval-in-seconds is or greater. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-87096-4: Do Not Show System Messages When Unsuccessful Logon Attempts Occur | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | This rule ensures the system prevents informative messages from being presented to the user pertaining to logon information after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | To ensure that the system prevents messages from being shown when three unsuccessful logon
attempts occur, run the following command:
$ grep silent /etc/security/faillock.confThe output should show silent. Is it the case that the system shows messages when three unsuccessful logon attempts occur? |
Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | This rule ensures the system prevents informative messages from being presented to the user pertaining to logon information after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | medium | |||
| CCI-000044 | SRG-OS-000021-GPOS-00005 | TBD - Assigned by DISA after STIG release | The operating system must enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | CCE-80670-3: Set Lockout Time for Failed Password Attempts | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | This rule configures the system to lock out accounts during a specified time period after a number of incorrect login attempts using pam_faillock.so. Ensure that the file /etc/security/faillock.conf contains the following entry: unlock_time=<interval-in-seconds> where interval-in-seconds is or greater. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid any errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. If unlock_time is set to 0, manual intervention by an administrator is required to unlock a user. This should be done using the faillock tool. | Applicable - Configurable | Verify that the operating system enforces the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is configured to lock an account until released by an administrator
after unsuccessful logon
attempts with the command:
$ grep 'unlock_time =' /etc/security/faillock.confunlock_time = Is it the case that the "unlock_time" option is not set to "", the line is missing, or commented out? |
Configure the operating system to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. | This rule configures the system to lock out accounts during a specified time period after a number of incorrect login attempts using pam_faillock.so. Ensure that the file /etc/security/faillock.conf contains the following entry: unlock_time=<interval-in-seconds> where interval-in-seconds is or greater. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid any errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. If unlock_time is set to 0, manual intervention by an administrator is required to unlock a user. This should be done using the faillock tool. | medium | |||
| CCI-000048 | SRG-OS-000023-GPOS-00006 | TBD - Assigned by DISA after STIG release | The operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system. | CCE-80763-6: Modify the System Login Banner | Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've readconsent to terms in IS user agreem't." |
To configure the system login banner edit /etc/issue. Replace the
default text with a message compliant with the local site policy or a legal
disclaimer.
The DoD required text is either:
You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests -- not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details. OR: I've read & consent to terms in IS user agreem't. |
Applicable - Configurable | Verify the operating system displays the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | To check if the system login banner is compliant,
run the following command:
$ cat /etc/issueIs it the case that it does not display the required banner? |
Configure the operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. |
To configure the system login banner edit /etc/issue. Replace the
default text with a message compliant with the local site policy or a legal
disclaimer.
The DoD required text is either:
You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests -- not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details. OR: I've read & consent to terms in IS user agreem't. |
medium | |||
| CCI-000048 | SRG-OS-000023-GPOS-00006 | TBD - Assigned by DISA after STIG release | The operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system. | CCE-80768-5: Enable GNOME3 Login Warning Banner | Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've readconsent to terms in IS user agreem't." | In the default graphical environment, displaying a login warning banner
in the GNOME Display Manager's login screen can be enabled on the login
screen by setting banner-message-enable to true.
To enable, add or edit banner-message-enable to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] banner-message-enable=trueOnce the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/banner-message-enableAfter the settings have been set, run dconf update. The banner text must also be set. |
Applicable - Configurable | Verify the operating system displays the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | To ensure a login warning banner is enabled, run the following:
$ grep banner-message-enable /etc/dconf/db/gdm.d/*If properly configured, the output should be true. To ensure a login warning banner is locked and cannot be changed by a user, run the following: $ grep banner-message-enable /etc/dconf/db/gdm.d/locks/*If properly configured, the output should be /org/gnome/login-screen/banner-message-enable. Is it the case that it is not? |
Configure the operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | In the default graphical environment, displaying a login warning banner
in the GNOME Display Manager's login screen can be enabled on the login
screen by setting banner-message-enable to true.
To enable, add or edit banner-message-enable to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] banner-message-enable=trueOnce the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/banner-message-enableAfter the settings have been set, run dconf update. The banner text must also be set. |
medium | |||
| CCI-000048 | SRG-OS-000023-GPOS-00006 | TBD - Assigned by DISA after STIG release | The operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system. | CCE-80770-1: Set the GNOME3 Login Warning Banner Text | Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've readconsent to terms in IS user agreem't." | In the default graphical environment, configuring the login warning banner text
in the GNOME Display Manager's login screen can be configured on the login
screen by setting banner-message-text to 'APPROVED_BANNER'
where APPROVED_BANNER is the approved banner for your environment.
To enable, add or edit banner-message-text to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] banner-message-text='APPROVED_BANNER'Once the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/banner-message-textAfter the settings have been set, run dconf update. When entering a warning banner that spans several lines, remember to begin and end the string with ' and use \n for new lines. |
Applicable - Configurable | Verify the operating system displays the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. |
To ensure the login warning banner text is properly set, run the following:
$ grep banner-message-text /etc/dconf/db/gdm.d/*If properly configured, the proper banner text will appear. To ensure the login warning banner text is locked and cannot be changed by a user, run the following: $ grep banner-message-text /etc/dconf/db/gdm.d/locks/*If properly configured, the output should be /org/gnome/login-screen/banner-message-text. Is it the case that it does not? |
Configure the operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | In the default graphical environment, configuring the login warning banner text
in the GNOME Display Manager's login screen can be configured on the login
screen by setting banner-message-text to 'APPROVED_BANNER'
where APPROVED_BANNER is the approved banner for your environment.
To enable, add or edit banner-message-text to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] banner-message-text='APPROVED_BANNER'Once the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/banner-message-textAfter the settings have been set, run dconf update. When entering a warning banner that spans several lines, remember to begin and end the string with ' and use \n for new lines. |
medium | |||
| CCI-000048 | SRG-OS-000023-GPOS-00006 | TBD - Assigned by DISA after STIG release | The operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting local or remote access to the system. | CCE-80905-3: Enable SSH Warning Banner | Display of a standardized and approved use notification before granting access to the operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've readconsent to terms in IS user agreem't." | To enable the warning banner and ensure it is consistent
across the system, add or correct the following line in
/etc/ssh/sshd_config:
Banner /etc/issueAnother section contains information on how to create an appropriate system-wide warning banner. |
Applicable - Configurable | Verify the operating system displays the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | To determine how the SSH daemon's Banner option is set, run the following command:
$ sudo grep -i Banner /etc/ssh/sshd_configIf a line indicating /etc/issue is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | To enable the warning banner and ensure it is consistent
across the system, add or correct the following line in
/etc/ssh/sshd_config:
Banner /etc/issueAnother section contains information on how to create an appropriate system-wide warning banner. |
medium | |||
| V-56593 | SRG-OS-000024-GPOS-00007 | TBD - Assigned by DISA after STIG release | The operating system must display the Standard Mandatory DoD Notice and Consent Banner until users acknowledge the usage conditions and take explicit actions to log on for further access. | The banner must be acknowledged by the user prior to allowing the user access to the operating system. This provides assurance that the user has seen the message and accepted the conditions for access. If the consent banner is not acknowledged by the user, DoD will not be in compliance with system use notifications required by law. To establish acceptance of the application usage policy, a click-through banner at system logon is required. The system must prevent further activity until the user executes a positive action to manifest agreement by clicking on a box indicating "OK". | |||||||||||
| CCI-000054 | SRG-OS-000027-GPOS-00008 | TBD - Assigned by DISA after STIG release | The operating system must limit the number of concurrent sessions to ten for all accounts and/or account types. | CCE-80955-8: Limit the Number of Concurrent Login Sessions Allowed Per User | Operating system management includes the ability to control the number of users and user sessions that utilize an operating system. Limiting the number of allowed users and sessions per user is helpful in reducing the risks related to DoS attacks. This requirement addresses concurrent sessions for information system accounts and does not address concurrent sessions by single users via multiple system accounts. The maximum number of concurrent sessions should be defined based upon mission needs and the operational environment for each system. | Limiting the number of allowed users and sessions per user can limit risks related to Denial of
Service attacks. This addresses concurrent sessions for a single account and does not address
concurrent sessions by a single user via multiple accounts. To set the number of concurrent
sessions per user add the following line in /etc/security/limits.conf or
a file under /etc/security/limits.d/:
* hard maxlogins |
Applicable - Configurable | Verify the operating system limits the number of concurrent sessions to ten for all accounts and/or account types. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 limits the number of concurrent sessions to
"" for all
accounts and/or account types with the following command:
$ grep -r -s maxlogins /etc/security/limits.conf /etc/security/limits.d/*.conf /etc/security/limits.conf:* hard maxlogins 10This can be set as a global domain (with the * wildcard) but may be set differently for multiple domains. Is it the case that the "maxlogins" item is missing, commented out, or the value is set greater than "" and is not documented with the Information System Security Officer (ISSO) as an operational requirement for all domains that have the "maxlogins" item assigned'? |
Configure the operating system to limit the number of concurrent sessions to ten for all accounts and/or account types. | Limiting the number of allowed users and sessions per user can limit risks related to Denial of
Service attacks. This addresses concurrent sessions for a single account and does not address
concurrent sessions by a single user via multiple accounts. To set the number of concurrent
sessions per user add the following line in /etc/security/limits.conf or
a file under /etc/security/limits.d/:
* hard maxlogins |
low | |||
| CCI-000056 | SRG-OS-000028-GPOS-00009 | TBD - Assigned by DISA after STIG release | The operating system must retain a users session lock until that user reestablishes access using established identification and authentication procedures. | CCE-83910-0: Enable the GNOME3 Screen Locking On Smartcard Removal | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Regardless of where the session lock is determined and implemented, once invoked, the session lock shall remain in place until the user re-authenticates. No other activity aside from re-authentication shall unlock the system. | In the default graphical environment, screen locking on smartcard removal
can be enabled by setting removal-action
to 'lock-screen'.
To enable, add or edit removal-action to /etc/dconf/db/local.d/00-security-settings. For example: [org/gnome/settings-daemon/peripherals/smartcard] removal-action='lock-screen'Once the setting has been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/settings-daemon/peripherals/smartcard/removal-actionAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system retains a user's session lock until that user reestablishes access using established identification and authentication procedures. If it does not, this is a finding. | To ensure screen locking on smartcard removal is enabled, run the following command:
$ grep removal-action /etc/dconf/db/local.d/*The output should be 'lock-screen'. To ensure that users cannot disable screen locking on smartcard removal, run the following: $ grep removal-action /etc/dconf/db/local.d/locks/*If properly configured, the output should be /org/gnome/settings-daemon/peripherals/smartcard/removal-action Is it the case that removal-action has not been configured? |
Configure the operating system to retain a user's session lock until that user reestablishes access using established identification and authentication procedures. | In the default graphical environment, screen locking on smartcard removal
can be enabled by setting removal-action
to 'lock-screen'.
To enable, add or edit removal-action to /etc/dconf/db/local.d/00-security-settings. For example: [org/gnome/settings-daemon/peripherals/smartcard] removal-action='lock-screen'Once the setting has been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/settings-daemon/peripherals/smartcard/removal-actionAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000056 | SRG-OS-000028-GPOS-00009 | TBD - Assigned by DISA after STIG release | The operating system must retain a users session lock until that user reestablishes access using established identification and authentication procedures. | CCE-80777-6: Enable GNOME3 Screensaver Lock After Idle Period | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Regardless of where the session lock is determined and implemented, once invoked, the session lock shall remain in place until the user re-authenticates. No other activity aside from re-authentication shall unlock the system. |
To activate locking of the screensaver in the GNOME3 desktop when it is activated,
add or set lock-enabled to true in
/etc/dconf/db/local.d/00-security-settings. For example:
[org/gnome/desktop/screensaver] lock-enabled=trueOnce the settings have been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/desktop/screensaver/lock-enabledAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system retains a user's session lock until that user reestablishes access using established identification and authentication procedures. If it does not, this is a finding. | To check the status of the idle screen lock activation, run the following command:
$ gsettings get org.gnome.desktop.screensaver lock-enabledIf properly configured, the output should be true. To ensure that users cannot change how long until the screensaver locks, run the following: $ grep lock-enabled /etc/dconf/db/local.d/locks/*If properly configured, the output for lock-enabled should be /org/gnome/desktop/screensaver/lock-enabled Is it the case that screensaver locking is not enabled and/or has not been set or configured correctly? |
Configure the operating system to retain a user's session lock until that user reestablishes access using established identification and authentication procedures. |
To activate locking of the screensaver in the GNOME3 desktop when it is activated,
add or set lock-enabled to true in
/etc/dconf/db/local.d/00-security-settings. For example:
[org/gnome/desktop/screensaver] lock-enabled=trueOnce the settings have been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/desktop/screensaver/lock-enabledAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000056 | SRG-OS-000028-GPOS-00009 | TBD - Assigned by DISA after STIG release | The operating system must retain a users session lock until that user reestablishes access using established identification and authentication procedures. | CCE-87261-4: Ensure Users Cannot Change GNOME3 Screensaver Lock After Idle Period | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Regardless of where the session lock is determined and implemented, once invoked, the session lock shall remain in place until the user re-authenticates. No other activity aside from re-authentication shall unlock the system. | If not already configured, ensure that users cannot change GNOME3 screensaver lock settings
by adding /org/gnome/desktop/screensaver/lock-enabledto /etc/dconf/db/local.d/locks/00-security-settings. For example: /org/gnome/desktop/screensaver/lock-enabledAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system retains a user's session lock until that user reestablishes access using established identification and authentication procedures. If it does not, this is a finding. | To ensure that users cannot change how long until the screensaver locks, run the following:
$ grep lock-enabled /etc/dconf/db/local.d/locks/*If properly configured, the output for lock-enabled should be /org/gnome/desktop/screensaver/lock-enabled Is it the case that screensaver locking is not locked? |
Configure the operating system to retain a user's session lock until that user reestablishes access using established identification and authentication procedures. | If not already configured, ensure that users cannot change GNOME3 screensaver lock settings
by adding /org/gnome/desktop/screensaver/lock-enabledto /etc/dconf/db/local.d/locks/00-security-settings. For example: /org/gnome/desktop/screensaver/lock-enabledAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000057 | SRG-OS-000029-GPOS-00010 | TBD - Assigned by DISA after STIG release | The operating system must initiate a session lock after a 15-minute period of inactivity for all connection types. | CCE-80775-0: Set GNOME3 Screensaver Inactivity Timeout | A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user's session has idled and take action to initiate the session lock. The session lock is implemented at the point where session activity can be determined and/or controlled. | The idle time-out value for inactivity in the GNOME3 desktop is configured via the idle-delay
setting must be set under an appropriate configuration file(s) in the /etc/dconf/db/local.d directory
and locked in /etc/dconf/db/local.d/locks directory to prevent user modification.
For example, to configure the system for a 15 minute delay, add the following to /etc/dconf/db/local.d/00-security-settings: [org/gnome/desktop/session] idle-delay=uint32 900 |
Applicable - Configurable | Verify the operating system initiates a session lock after a 15-minute period of inactivity for all connection types. If it does not, this is a finding. | To check the current idle time-out value, run the following command:
$ gsettings get org.gnome.desktop.session idle-delayIf properly configured, the output should be 'uint32 '. To ensure that users cannot change the screensaver inactivity timeout setting, run the following: $ grep idle-delay /etc/dconf/db/local.d/locks/*If properly configured, the output should be /org/gnome/desktop/session/idle-delay Is it the case that idle-delay is set to 0 or a value greater than ? |
Configure the operating system to initiate a session lock after a 15-minute period of inactivity for all connection types. | The idle time-out value for inactivity in the GNOME3 desktop is configured via the idle-delay
setting must be set under an appropriate configuration file(s) in the /etc/dconf/db/local.d directory
and locked in /etc/dconf/db/local.d/locks directory to prevent user modification.
For example, to configure the system for a 15 minute delay, add the following to /etc/dconf/db/local.d/00-security-settings: [org/gnome/desktop/session] idle-delay=uint32 900 |
medium | |||
| CCI-000057 | SRG-OS-000029-GPOS-00010 | TBD - Assigned by DISA after STIG release | The operating system must initiate a session lock after a 15-minute period of inactivity for all connection types. | CCE-80776-8: Set GNOME3 Screensaver Lock Delay After Activation Period | A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user's session has idled and take action to initiate the session lock. The session lock is implemented at the point where session activity can be determined and/or controlled. | To activate the locking delay of the screensaver in the GNOME3 desktop when
the screensaver is activated, add or set lock-delay to uint32 in
/etc/dconf/db/local.d/00-security-settings. For example:
[org/gnome/desktop/screensaver] lock-delay=uint32After the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system initiates a session lock after a 15-minute period of inactivity for all connection types. If it does not, this is a finding. | To check that the screen locks immediately when activated, run the following command:
$ gsettings get org.gnome.desktop.screensaver lock-delayIf properly configured, the output should be 'uint32 '. Is it the case that the screensaver lock delay is missing, or is set to a value greater than ? |
Configure the operating system to initiate a session lock after a 15-minute period of inactivity for all connection types. | To activate the locking delay of the screensaver in the GNOME3 desktop when
the screensaver is activated, add or set lock-delay to uint32 in
/etc/dconf/db/local.d/00-security-settings. For example:
[org/gnome/desktop/screensaver] lock-delay=uint32After the settings have been set, run dconf update. |
medium | |||
| CCI-000057 | SRG-OS-000029-GPOS-00010 | TBD - Assigned by DISA after STIG release | The operating system must initiate a session lock after a 15-minute period of inactivity for all connection types. | CCE-80780-0: Ensure Users Cannot Change GNOME3 Screensaver Settings | A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user's session has idled and take action to initiate the session lock. The session lock is implemented at the point where session activity can be determined and/or controlled. | If not already configured, ensure that users cannot change GNOME3 screensaver lock settings
by adding /org/gnome/desktop/screensaver/lock-delay
to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification.
For example:
/org/gnome/desktop/screensaver/lock-delayAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system initiates a session lock after a 15-minute period of inactivity for all connection types. If it does not, this is a finding. | To ensure that users cannot change session idle and lock settings, run the following:
$ grep 'lock-delay' /etc/dconf/db/local.d/locks/*If properly configured, the output should return: /org/gnome/desktop/screensaver/lock-delay Is it the case that GNOME3 session settings are not locked or configured properly? |
Configure the operating system to initiate a session lock after a 15-minute period of inactivity for all connection types. | If not already configured, ensure that users cannot change GNOME3 screensaver lock settings
by adding /org/gnome/desktop/screensaver/lock-delay
to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification.
For example:
/org/gnome/desktop/screensaver/lock-delayAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000057 | SRG-OS-000029-GPOS-00010 | TBD - Assigned by DISA after STIG release | The operating system must initiate a session lock after a 15-minute period of inactivity for all connection types. | CCE-80781-8: Ensure Users Cannot Change GNOME3 Session Idle Settings | A session time-out lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. Rather than relying on the user to manually lock their operating system session prior to vacating the vicinity, operating systems need to be able to identify when a user's session has idled and take action to initiate the session lock. The session lock is implemented at the point where session activity can be determined and/or controlled. | If not already configured, ensure that users cannot change GNOME3 session idle settings
by adding /org/gnome/desktop/session/idle-delay
to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification.
For example:
/org/gnome/desktop/session/idle-delayAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system initiates a session lock after a 15-minute period of inactivity for all connection types. If it does not, this is a finding. | To ensure that users cannot change session idle and lock settings, run the following:
$ grep 'idle-delay' /etc/dconf/db/local.d/locks/*If properly configured, the output should return: /org/gnome/desktop/session/idle-delay Is it the case that idle-delay is not locked? |
Configure the operating system to initiate a session lock after a 15-minute period of inactivity for all connection types. | If not already configured, ensure that users cannot change GNOME3 session idle settings
by adding /org/gnome/desktop/session/idle-delay
to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification.
For example:
/org/gnome/desktop/session/idle-delayAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000057 | SRG-OS-000030-GPOS-00011 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability for users to directly initiate a session lock for all connection types. | CCE-83910-0: Enable the GNOME3 Screen Locking On Smartcard Removal | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Rather than be forced to wait for a period of time to expire before the user session can be locked, operating systems need to provide users with the ability to manually invoke a session lock so users may secure their session should the need arise for them to temporarily vacate the immediate physical vicinity. | In the default graphical environment, screen locking on smartcard removal
can be enabled by setting removal-action
to 'lock-screen'.
To enable, add or edit removal-action to /etc/dconf/db/local.d/00-security-settings. For example: [org/gnome/settings-daemon/peripherals/smartcard] removal-action='lock-screen'Once the setting has been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/settings-daemon/peripherals/smartcard/removal-actionAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system provides the capability for users to directly initiate a session lock for all connection types. If it does not, this is a finding. | To ensure screen locking on smartcard removal is enabled, run the following command:
$ grep removal-action /etc/dconf/db/local.d/*The output should be 'lock-screen'. To ensure that users cannot disable screen locking on smartcard removal, run the following: $ grep removal-action /etc/dconf/db/local.d/locks/*If properly configured, the output should be /org/gnome/settings-daemon/peripherals/smartcard/removal-action Is it the case that removal-action has not been configured? |
Configure the operating system to provide the capability for users to directly initiate a session lock for all connection types. | In the default graphical environment, screen locking on smartcard removal
can be enabled by setting removal-action
to 'lock-screen'.
To enable, add or edit removal-action to /etc/dconf/db/local.d/00-security-settings. For example: [org/gnome/settings-daemon/peripherals/smartcard] removal-action='lock-screen'Once the setting has been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/settings-daemon/peripherals/smartcard/removal-actionAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000057 | SRG-OS-000030-GPOS-00011 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability for users to directly initiate a session lock for all connection types. | CCE-80777-6: Enable GNOME3 Screensaver Lock After Idle Period | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Rather than be forced to wait for a period of time to expire before the user session can be locked, operating systems need to provide users with the ability to manually invoke a session lock so users may secure their session should the need arise for them to temporarily vacate the immediate physical vicinity. |
To activate locking of the screensaver in the GNOME3 desktop when it is activated,
add or set lock-enabled to true in
/etc/dconf/db/local.d/00-security-settings. For example:
[org/gnome/desktop/screensaver] lock-enabled=trueOnce the settings have been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/desktop/screensaver/lock-enabledAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system provides the capability for users to directly initiate a session lock for all connection types. If it does not, this is a finding. | To check the status of the idle screen lock activation, run the following command:
$ gsettings get org.gnome.desktop.screensaver lock-enabledIf properly configured, the output should be true. To ensure that users cannot change how long until the screensaver locks, run the following: $ grep lock-enabled /etc/dconf/db/local.d/locks/*If properly configured, the output for lock-enabled should be /org/gnome/desktop/screensaver/lock-enabled Is it the case that screensaver locking is not enabled and/or has not been set or configured correctly? |
Configure the operating system to provide the capability for users to directly initiate a session lock for all connection types. |
To activate locking of the screensaver in the GNOME3 desktop when it is activated,
add or set lock-enabled to true in
/etc/dconf/db/local.d/00-security-settings. For example:
[org/gnome/desktop/screensaver] lock-enabled=trueOnce the settings have been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/desktop/screensaver/lock-enabledAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000057 | SRG-OS-000030-GPOS-00011 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability for users to directly initiate a session lock for all connection types. | CCE-87261-4: Ensure Users Cannot Change GNOME3 Screensaver Lock After Idle Period | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not want to log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. Rather than be forced to wait for a period of time to expire before the user session can be locked, operating systems need to provide users with the ability to manually invoke a session lock so users may secure their session should the need arise for them to temporarily vacate the immediate physical vicinity. | If not already configured, ensure that users cannot change GNOME3 screensaver lock settings
by adding /org/gnome/desktop/screensaver/lock-enabledto /etc/dconf/db/local.d/locks/00-security-settings. For example: /org/gnome/desktop/screensaver/lock-enabledAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system provides the capability for users to directly initiate a session lock for all connection types. If it does not, this is a finding. | To ensure that users cannot change how long until the screensaver locks, run the following:
$ grep lock-enabled /etc/dconf/db/local.d/locks/*If properly configured, the output for lock-enabled should be /org/gnome/desktop/screensaver/lock-enabled Is it the case that screensaver locking is not locked? |
Configure the operating system to provide the capability for users to directly initiate a session lock for all connection types. | If not already configured, ensure that users cannot change GNOME3 screensaver lock settings
by adding /org/gnome/desktop/screensaver/lock-enabledto /etc/dconf/db/local.d/locks/00-security-settings. For example: /org/gnome/desktop/screensaver/lock-enabledAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000060 | SRG-OS-000031-GPOS-00012 | TBD - Assigned by DISA after STIG release | The operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image. | CCE-80775-0: Set GNOME3 Screensaver Inactivity Timeout | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. The operating system session lock event must include an obfuscation of the display screen so as to prevent other users from reading what was previously displayed. Publicly viewable images can include static or dynamic images, for example, patterns used with screen savers, photographic images, solid colors, a clock, a battery life indicator, or a blank screen, with the additional caveat that none of the images convey sensitive information. | The idle time-out value for inactivity in the GNOME3 desktop is configured via the idle-delay
setting must be set under an appropriate configuration file(s) in the /etc/dconf/db/local.d directory
and locked in /etc/dconf/db/local.d/locks directory to prevent user modification.
For example, to configure the system for a 15 minute delay, add the following to /etc/dconf/db/local.d/00-security-settings: [org/gnome/desktop/session] idle-delay=uint32 900 |
Applicable - Configurable | Verify the operating system conceals, via the session lock, information previously visible on the display with a publicly viewable image. If it does not, this is a finding. | To check the current idle time-out value, run the following command:
$ gsettings get org.gnome.desktop.session idle-delayIf properly configured, the output should be 'uint32 '. To ensure that users cannot change the screensaver inactivity timeout setting, run the following: $ grep idle-delay /etc/dconf/db/local.d/locks/*If properly configured, the output should be /org/gnome/desktop/session/idle-delay Is it the case that idle-delay is set to 0 or a value greater than ? |
Configure the operating system to conceal, via the session lock, information previously visible on the display with a publicly viewable image. | The idle time-out value for inactivity in the GNOME3 desktop is configured via the idle-delay
setting must be set under an appropriate configuration file(s) in the /etc/dconf/db/local.d directory
and locked in /etc/dconf/db/local.d/locks directory to prevent user modification.
For example, to configure the system for a 15 minute delay, add the following to /etc/dconf/db/local.d/00-security-settings: [org/gnome/desktop/session] idle-delay=uint32 900 |
medium | |||
| CCI-000060 | SRG-OS-000031-GPOS-00012 | TBD - Assigned by DISA after STIG release | The operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image. | CCE-80776-8: Set GNOME3 Screensaver Lock Delay After Activation Period | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. The operating system session lock event must include an obfuscation of the display screen so as to prevent other users from reading what was previously displayed. Publicly viewable images can include static or dynamic images, for example, patterns used with screen savers, photographic images, solid colors, a clock, a battery life indicator, or a blank screen, with the additional caveat that none of the images convey sensitive information. | To activate the locking delay of the screensaver in the GNOME3 desktop when
the screensaver is activated, add or set lock-delay to uint32 in
/etc/dconf/db/local.d/00-security-settings. For example:
[org/gnome/desktop/screensaver] lock-delay=uint32After the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system conceals, via the session lock, information previously visible on the display with a publicly viewable image. If it does not, this is a finding. | To check that the screen locks immediately when activated, run the following command:
$ gsettings get org.gnome.desktop.screensaver lock-delayIf properly configured, the output should be 'uint32 '. Is it the case that the screensaver lock delay is missing, or is set to a value greater than ? |
Configure the operating system to conceal, via the session lock, information previously visible on the display with a publicly viewable image. | To activate the locking delay of the screensaver in the GNOME3 desktop when
the screensaver is activated, add or set lock-delay to uint32 in
/etc/dconf/db/local.d/00-security-settings. For example:
[org/gnome/desktop/screensaver] lock-delay=uint32After the settings have been set, run dconf update. |
medium | |||
| CCI-000060 | SRG-OS-000031-GPOS-00012 | TBD - Assigned by DISA after STIG release | The operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image. | CCE-80780-0: Ensure Users Cannot Change GNOME3 Screensaver Settings | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. The operating system session lock event must include an obfuscation of the display screen so as to prevent other users from reading what was previously displayed. Publicly viewable images can include static or dynamic images, for example, patterns used with screen savers, photographic images, solid colors, a clock, a battery life indicator, or a blank screen, with the additional caveat that none of the images convey sensitive information. | If not already configured, ensure that users cannot change GNOME3 screensaver lock settings
by adding /org/gnome/desktop/screensaver/lock-delay
to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification.
For example:
/org/gnome/desktop/screensaver/lock-delayAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system conceals, via the session lock, information previously visible on the display with a publicly viewable image. If it does not, this is a finding. | To ensure that users cannot change session idle and lock settings, run the following:
$ grep 'lock-delay' /etc/dconf/db/local.d/locks/*If properly configured, the output should return: /org/gnome/desktop/screensaver/lock-delay Is it the case that GNOME3 session settings are not locked or configured properly? |
Configure the operating system to conceal, via the session lock, information previously visible on the display with a publicly viewable image. | If not already configured, ensure that users cannot change GNOME3 screensaver lock settings
by adding /org/gnome/desktop/screensaver/lock-delay
to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification.
For example:
/org/gnome/desktop/screensaver/lock-delayAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000060 | SRG-OS-000031-GPOS-00012 | TBD - Assigned by DISA after STIG release | The operating system must conceal, via the session lock, information previously visible on the display with a publicly viewable image. | CCE-80781-8: Ensure Users Cannot Change GNOME3 Session Idle Settings | A session lock is a temporary action taken when a user stops work and moves away from the immediate physical vicinity of the information system but does not log out because of the temporary nature of the absence. The session lock is implemented at the point where session activity can be determined. The operating system session lock event must include an obfuscation of the display screen so as to prevent other users from reading what was previously displayed. Publicly viewable images can include static or dynamic images, for example, patterns used with screen savers, photographic images, solid colors, a clock, a battery life indicator, or a blank screen, with the additional caveat that none of the images convey sensitive information. | If not already configured, ensure that users cannot change GNOME3 session idle settings
by adding /org/gnome/desktop/session/idle-delay
to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification.
For example:
/org/gnome/desktop/session/idle-delayAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system conceals, via the session lock, information previously visible on the display with a publicly viewable image. If it does not, this is a finding. | To ensure that users cannot change session idle and lock settings, run the following:
$ grep 'idle-delay' /etc/dconf/db/local.d/locks/*If properly configured, the output should return: /org/gnome/desktop/session/idle-delay Is it the case that idle-delay is not locked? |
Configure the operating system to conceal, via the session lock, information previously visible on the display with a publicly viewable image. | If not already configured, ensure that users cannot change GNOME3 session idle settings
by adding /org/gnome/desktop/session/idle-delay
to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification.
For example:
/org/gnome/desktop/session/idle-delayAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000067 | SRG-OS-000032-GPOS-00013 | TBD - Assigned by DISA after STIG release | The operating system must monitor remote access methods. | CCE-83426-7: Ensure remote access methods are monitored in Rsyslog | Remote access services, such as those providing remote access to network devices and information systems, which lack automated monitoring capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Automated monitoring of remote access sessions allows organizations to detect cyber attacks and also ensure ongoing compliance with remote access policies by auditing connection activities of remote access capabilities, such as Remote Desktop Protocol (RDP), on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets). | Logging of remote access methods must be implemented to help identify cyber
attacks and ensure ongoing compliance with remote access policies are being
audited and upheld. An examples of a remote access method is the use of the
Remote Desktop Protocol (RDP) from an external, non-organization controlled
network. The /etc/rsyslog.conf or
/etc/rsyslog.d/*.conf file should contain a match for the following
selectors: auth.*, authpriv.*, and daemon.*. If
not, use the following as an example configuration:
auth.*;authpriv.* /var/log/secure
daemon.* /var/log/messages
|
Applicable - Configurable | Verify the operating system monitors remote access methods. If it does not, this is a finding. | To verify that remote access methods are logging to rsyslog,
run the following command:
grep -rE '(auth.\*|authpriv.\*|daemon.\*)' /etc/rsyslog.*The output should contain auth.*, authpriv.*, and daemon.* pointing to a log file. Is it the case that remote access methods are not logging to rsyslog? |
Configure the operating system to monitor remote access methods. | Logging of remote access methods must be implemented to help identify cyber
attacks and ensure ongoing compliance with remote access policies are being
audited and upheld. An examples of a remote access method is the use of the
Remote Desktop Protocol (RDP) from an external, non-organization controlled
network. The /etc/rsyslog.conf or
/etc/rsyslog.d/*.conf file should contain a match for the following
selectors: auth.*, authpriv.*, and daemon.*. If
not, use the following as an example configuration:
auth.*;authpriv.* /var/log/secure
daemon.* /var/log/messages
|
medium | |||
| CCI-000068 | SRG-OS-000033-GPOS-00014 | TBD - Assigned by DISA after STIG release | The operating system must implement DoD-approved encryption to protect the confidentiality of remote access sessions. | CCE-80937-6: Configure Libreswan to use System Crypto Policy | Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Encryption provides a means to secure the remote connection to prevent unauthorized access to the data traversing the remote access connection (e.g., RDP), thereby providing a degree of confidentiality. The encryption strength of a mechanism is selected based on the security categorization of the information. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. Libreswan is supported by system crypto policy, but the Libreswan configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that the /etc/ipsec.conf includes the appropriate configuration file. In /etc/ipsec.conf, make sure that the following line is not commented out or superseded by later includes: include /etc/crypto-policies/back-ends/libreswan.config | Applicable - Configurable | Verify the operating system implements DoD-approved encryption to protect the confidentiality of remote access sessions. If it does not, this is a finding. | Verify that the IPSec service uses the system crypto policy. If the ipsec service is not installed is not applicable. Check to see if the "IPsec" service is active with the following command: $ systemctl status ipsec ipsec.service - Internet Key Exchange (IKE) Protocol Daemon for IPsec Loaded: loaded (/usr/lib/systemd/system/ipsec.service; disabled) Active: inactive (dead) If the "IPsec" service is active, check to see if it is using the system crypto policy with the following command: $ sudo grep include /etc/ipsec.conf /etc/ipsec.d/*.conf /etc/ipsec.conf:include /etc/crypto-policies/back-ends/libreswan.config Is it the case that the "IPsec" service is active and the ipsec configuration file does not contain does not contain include /etc/crypto-policies/back-ends/libreswan.config? | Configure the operating system to implement DoD-approved encryption to protect the confidentiality of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. Libreswan is supported by system crypto policy, but the Libreswan configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that the /etc/ipsec.conf includes the appropriate configuration file. In /etc/ipsec.conf, make sure that the following line is not commented out or superseded by later includes: include /etc/crypto-policies/back-ends/libreswan.config | high | |||
| CCI-000068 | SRG-OS-000033-GPOS-00014 | TBD - Assigned by DISA after STIG release | The operating system must implement DoD-approved encryption to protect the confidentiality of remote access sessions. | CCE-85902-5: Configure SSH Client to Use FIPS 140-2 Validated Ciphers: openssh.config | Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Encryption provides a means to secure the remote connection to prevent unauthorized access to the data traversing the remote access connection (e.g., RDP), thereby providing a degree of confidentiality. The encryption strength of a mechanism is selected based on the security categorization of the information. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
Applicable - Configurable | Verify the operating system implements DoD-approved encryption to protect the confidentiality of remote access sessions. If it does not, this is a finding. | To verify if the OpenSSH client uses defined Cipher suite in the Crypto Policy, run:
$ grep -i ciphers /etc/crypto-policies/back-ends/openssh.configand verify that the line matches: CiphersIs it the case that Crypto Policy for OpenSSH client is not configured correctly? |
Configure the operating system to implement DoD-approved encryption to protect the confidentiality of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
high | |||
| CCI-000068 | SRG-OS-000033-GPOS-00014 | TBD - Assigned by DISA after STIG release | The operating system must implement DoD-approved encryption to protect the confidentiality of remote access sessions. | CCE-82177-7: Force frequent session key renegotiation | Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Encryption provides a means to secure the remote connection to prevent unauthorized access to the data traversing the remote access connection (e.g., RDP), thereby providing a degree of confidentiality. The encryption strength of a mechanism is selected based on the security categorization of the information. | The RekeyLimit parameter specifies how often
the session key of the is renegotiated, both in terms of
amount of data that may be transmitted and the time
elapsed. To decrease the default limits, add or correct the following line in /etc/ssh/sshd_config: RekeyLimit |
Applicable - Configurable | Verify the operating system implements DoD-approved encryption to protect the confidentiality of remote access sessions. If it does not, this is a finding. | To check if RekeyLimit is set correctly, run the
following command:
$ sudo grep RekeyLimit /etc/ssh/sshd_configIf configured properly, output should be RekeyLimitIs it the case that it is commented out or is not set? |
Configure the operating system to implement DoD-approved encryption to protect the confidentiality of remote access sessions. | The RekeyLimit parameter specifies how often
the session key of the is renegotiated, both in terms of
amount of data that may be transmitted and the time
elapsed. To decrease the default limits, add or correct the following line in /etc/ssh/sshd_config: RekeyLimit |
medium | |||
| CCI-000068 | SRG-OS-000033-GPOS-00014 | TBD - Assigned by DISA after STIG release | The operating system must implement DoD-approved encryption to protect the confidentiality of remote access sessions. | CCE-84027-2: Set kernel parameter 'crypto.fips_enabled' to 1 | Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Encryption provides a means to secure the remote connection to prevent unauthorized access to the data traversing the remote access connection (e.g., RDP), thereby providing a degree of confidentiality. The encryption strength of a mechanism is selected based on the security categorization of the information. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
Applicable - Configurable | Verify the operating system implements DoD-approved encryption to protect the confidentiality of remote access sessions. If it does not, this is a finding. | To verify that kernel parameter 'crypto.fips_enabled' is set properly, run the following command:
sysctl crypto.fips_enabledThe output should contain the following: crypto.fips_enabled = 1Is it the case that crypto.fips_enabled is not 1? |
Configure the operating system to implement DoD-approved encryption to protect the confidentiality of remote access sessions. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
high | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-89446-9: Record Any Attempts to Run chacl | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chacl" command with the following command: $ sudo auditctl -l | grep chacl -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80698-4: Record Any Attempts to Run chcon | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80700-8: Record Any Attempts to Run semanage | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "semanage" command with the following command: $ sudo auditctl -l | grep semanage -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-88437-9: Record Any Attempts to Run setfacl | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfacl" command with the following command: $ sudo auditctl -l | grep setfacl -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-82280-9: Record Any Attempts to Run setfiles | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfiles" command with the following command: $ sudo auditctl -l | grep setfiles -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80701-6: Record Any Attempts to Run setsebool | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setsebool" command with the following command: $ sudo auditctl -l | grep setsebool -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -k privileged Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80711-5: Ensure auditd Collects Information on Kernel Module Unloading - delete_module | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
delete_module system call, run the following command:
$ sudo grep "delete_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80712-3: Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
finit_module system call, run the following command:
$ sudo grep "finit_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80713-1: Ensure auditd Collects Information on Kernel Module Loading - init_module | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
init_module system call, run the following command:
$ sudo grep "init_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80719-8: Record Attempts to Alter Logon and Logout Events - lastlog | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/var/log/lastlog" with the following command: $ sudo auditctl -l | grep /var/log/lastlog -w /var/log/lastlog -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80722-2: Ensure auditd Collects Information on Exporting to Media (successful) | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
mount system call, run the following command:
$ sudo grep "mount" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80725-5: Ensure auditd Collects Information on the Use of Privileged Commands - chage | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chage" command with the following command: $ sudo auditctl -l | grep chage -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chage Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80726-3: Ensure auditd Collects Information on the Use of Privileged Commands - chsh | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chsh" command with the following command: $ sudo auditctl -l | grep chsh -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chsh Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80727-1: Ensure auditd Collects Information on the Use of Privileged Commands - crontab | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "crontab" command with the following command: $ sudo auditctl -l | grep crontab -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -k privileged-crontab Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80728-9: Ensure auditd Collects Information on the Use of Privileged Commands - gpasswd | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "gpasswd" command with the following command: $ sudo auditctl -l | grep gpasswd -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-gpasswd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-89455-0: Ensure auditd Collects Information on the Use of Privileged Commands - kmod | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "kmod" command with the following command: $ sudo auditctl -l | grep kmod -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-kmod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80989-7: Ensure auditd Collects Information on the Use of Privileged Commands - mount | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "mount" command with the following command: $ sudo auditctl -l | grep mount -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-mount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80729-7: Ensure auditd Collects Information on the Use of Privileged Commands - newgrp | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "newgrp" command with the following command: $ sudo auditctl -l | grep newgrp -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -k privileged-newgrp Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80730-5: Ensure auditd Collects Information on the Use of Privileged Commands - pam_timestamp_check | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "pam_timestamp_check" command with the following command: $ sudo auditctl -l | grep pam_timestamp_check -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -k privileged-pam_timestamp_check Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80731-3: Ensure auditd Collects Information on the Use of Privileged Commands - passwd | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "passwd" command with the following command: $ sudo auditctl -l | grep passwd -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-passwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80732-1: Ensure auditd Collects Information on the Use of Privileged Commands - postdrop | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postdrop" command with the following command: $ sudo auditctl -l | grep postdrop -a always,exit -F path=/usr/bin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postdrop Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80733-9: Ensure auditd Collects Information on the Use of Privileged Commands - postqueue | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postqueue" command with the following command: $ sudo auditctl -l | grep postqueue -a always,exit -F path=/usr/bin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postqueue Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-85944-7: Record Any Attempts to Run ssh-agent | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-agent" command with the following command: $ sudo auditctl -l | grep ssh-agent -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80735-4: Ensure auditd Collects Information on the Use of Privileged Commands - ssh-keysign | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-keysign" command with the following command: $ sudo auditctl -l | grep ssh-keysign -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-keysign Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80736-2: Ensure auditd Collects Information on the Use of Privileged Commands - su | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "su" command with the following command: $ sudo auditctl -l | grep su -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -k privileged-su Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80737-0: Ensure auditd Collects Information on the Use of Privileged Commands - sudo | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "sudo" command with the following command: $ sudo auditctl -l | grep sudo -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80739-6: Ensure auditd Collects Information on the Use of Privileged Commands - umount | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "umount" command with the following command: $ sudo auditctl -l | grep umount -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-umount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80740-4: Ensure auditd Collects Information on the Use of Privileged Commands - unix_chkpwd | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_chkpwd" command with the following command: $ sudo auditctl -l | grep unix_chkpwd -a always,exit -F path=/usr/bin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_chkpwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-89480-8: Ensure auditd Collects Information on the Use of Privileged Commands - unix_update | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_update" command with the following command: $ sudo auditctl -l | grep unix_update -a always,exit -F path=/usr/bin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80741-2: Ensure auditd Collects Information on the Use of Privileged Commands - userhelper | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "userhelper" command with the following command: $ sudo auditctl -l | grep userhelper -a always,exit -F path=/usr/bin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -k privileged-userhelper Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-86027-0: Ensure auditd Collects Information on the Use of Privileged Commands - usermod | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "usermod" command with the following command: $ sudo auditctl -l | grep usermod -a always,exit -F path=/usr/bin/usermod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-usermod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to produce audit records containing information to establish what type of events occurred. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80825-3: Enable Auditing for Processes Which Start Prior to the Audit Daemon | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit=1'The command should not return any output. Is it the case that auditing is not enabled at boot time? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
low | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80943-4: Extend Audit Backlog Limit for the Audit Daemon | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit_backlog_limit=8192,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit_backlog_limit=8192.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit_backlog_limit=8192.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit_backlog_limit=8192'The command should not return any output. Is it the case that audit backlog limit is not configured? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
low | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | The audit package should be installed. | Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | The audit package should be installed. | medium | |||
| CCI-000130 | SRG-OS-000037-GPOS-00015 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish what type of events occurred. | CCE-80872-5: Enable auditd Service | Without establishing what type of events occurred, it would be difficult to establish, correlate, and investigate the events leading up to an outage or attack. Audit record content that may be necessary to satisfy this requirement includes, for example, time stamps, source and destination addresses, user/process identifiers, event descriptions, success/fail indications, filenames involved, and access control or flow control rules invoked. Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish what type of events occurred. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to produce audit records containing information to establish what type of events occurred. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000131 | SRG-OS-000038-GPOS-00016 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish when (date and time) the events occurred. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know when events occurred (date and time). Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | The audit package should be installed. | Applicable - Configurable | Verify the operating system produces audit records containing information to establish when (date and time) the events occurred. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to produce audit records containing information to establish when (date and time) the events occurred. | The audit package should be installed. | medium | |||
| CCI-000131 | SRG-OS-000038-GPOS-00016 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish when (date and time) the events occurred. | CCE-80872-5: Enable auditd Service | Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know when events occurred (date and time). Associating event types with detected events in the operating system audit logs provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish when (date and time) the events occurred. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to produce audit records containing information to establish when (date and time) the events occurred. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000132 | SRG-OS-000039-GPOS-00017 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish where the events occurred. | CCE-82897-0: Set type of computer node name logging in audit logs | Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know where events occurred, such as operating system components, modules, device identifiers, node names, file names, and functionality. Associating information about where the event occurred within the operating system provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | To configure Audit daemon to use a unique identifier as computer node name in the audit events, set name_format to in /etc/audit/auditd.conf. | Applicable - Configurable | Verify the operating system produces audit records containing information to establish where the events occurred. If it does not, this is a finding. | To verify that Audit Daemon is configured to record the computer node
name in the audit events, run the following command:
$ sudo grep name_format /etc/audit/auditd.confThe output should return the following: name_format =Is it the case that name_format isn't set to ? |
Configure the operating system to produce audit records containing information to establish where the events occurred. | To configure Audit daemon to use a unique identifier as computer node name in the audit events, set name_format to in /etc/audit/auditd.conf. | medium | |||
| CCI-000132 | SRG-OS-000039-GPOS-00017 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish where the events occurred. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know where events occurred, such as operating system components, modules, device identifiers, node names, file names, and functionality. Associating information about where the event occurred within the operating system provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | The audit package should be installed. | Applicable - Configurable | Verify the operating system produces audit records containing information to establish where the events occurred. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to produce audit records containing information to establish where the events occurred. | The audit package should be installed. | medium | |||
| CCI-000132 | SRG-OS-000039-GPOS-00017 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish where the events occurred. | CCE-80872-5: Enable auditd Service | Without establishing where events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know where events occurred, such as operating system components, modules, device identifiers, node names, file names, and functionality. Associating information about where the event occurred within the operating system provides a means of investigating an attack; recognizing resource utilization or capacity thresholds; or identifying an improperly configured operating system. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish where the events occurred. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to produce audit records containing information to establish where the events occurred. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000133 | SRG-OS-000040-GPOS-00018 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish the source of the events. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In addition to logging where events occur within the operating system, the operating system must also generate audit records that identify sources of events. Sources of operating system events include, but are not limited to, processes and services. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know the source of the event. | The audit package should be installed. | Applicable - Configurable | Verify the operating system produces audit records containing information to establish the source of the events. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to produce audit records containing information to establish the source of the events. | The audit package should be installed. | medium | |||
| CCI-000133 | SRG-OS-000040-GPOS-00018 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish the source of the events. | CCE-80872-5: Enable auditd Service | Without establishing the source of the event, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In addition to logging where events occur within the operating system, the operating system must also generate audit records that identify sources of events. Sources of operating system events include, but are not limited to, processes and services. In order to compile an accurate risk assessment and provide forensic analysis, it is essential for security personnel to know the source of the event. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish the source of the events. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to produce audit records containing information to establish the source of the events. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000134 | SRG-OS-000041-GPOS-00019 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish the outcome of the events. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without information about the outcome of events, security personnel cannot make an accurate assessment as to whether an attack was successful or if changes were made to the security state of the system. Event outcomes can include indicators of event success or failure and event-specific results (e.g., the security state of the information system after the event occurred). As such, they also provide a means to measure the impact of an event and help authorized personnel to determine the appropriate response. | The audit package should be installed. | Applicable - Configurable | Verify the operating system produces audit records containing information to establish the outcome of the events. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to produce audit records containing information to establish the outcome of the events. | The audit package should be installed. | medium | |||
| CCI-000134 | SRG-OS-000041-GPOS-00019 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish the outcome of the events. | CCE-80872-5: Enable auditd Service | Without information about the outcome of events, security personnel cannot make an accurate assessment as to whether an attack was successful or if changes were made to the security state of the system. Event outcomes can include indicators of event success or failure and event-specific results (e.g., the security state of the information system after the event occurred). As such, they also provide a means to measure the impact of an event and help authorized personnel to determine the appropriate response. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish the outcome of the events. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to produce audit records containing information to establish the outcome of the events. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-89446-9: Record Any Attempts to Run chacl | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chacl" command with the following command: $ sudo auditctl -l | grep chacl -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80698-4: Record Any Attempts to Run chcon | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80700-8: Record Any Attempts to Run semanage | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "semanage" command with the following command: $ sudo auditctl -l | grep semanage -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-88437-9: Record Any Attempts to Run setfacl | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfacl" command with the following command: $ sudo auditctl -l | grep setfacl -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-82280-9: Record Any Attempts to Run setfiles | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfiles" command with the following command: $ sudo auditctl -l | grep setfiles -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80701-6: Record Any Attempts to Run setsebool | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setsebool" command with the following command: $ sudo auditctl -l | grep setsebool -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -k privileged Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80711-5: Ensure auditd Collects Information on Kernel Module Unloading - delete_module | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
delete_module system call, run the following command:
$ sudo grep "delete_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80712-3: Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
finit_module system call, run the following command:
$ sudo grep "finit_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80713-1: Ensure auditd Collects Information on Kernel Module Loading - init_module | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
init_module system call, run the following command:
$ sudo grep "init_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80719-8: Record Attempts to Alter Logon and Logout Events - lastlog | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/var/log/lastlog" with the following command: $ sudo auditctl -l | grep /var/log/lastlog -w /var/log/lastlog -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80722-2: Ensure auditd Collects Information on Exporting to Media (successful) | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
mount system call, run the following command:
$ sudo grep "mount" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80725-5: Ensure auditd Collects Information on the Use of Privileged Commands - chage | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chage" command with the following command: $ sudo auditctl -l | grep chage -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chage Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80726-3: Ensure auditd Collects Information on the Use of Privileged Commands - chsh | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chsh" command with the following command: $ sudo auditctl -l | grep chsh -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chsh Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80727-1: Ensure auditd Collects Information on the Use of Privileged Commands - crontab | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "crontab" command with the following command: $ sudo auditctl -l | grep crontab -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -k privileged-crontab Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80728-9: Ensure auditd Collects Information on the Use of Privileged Commands - gpasswd | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "gpasswd" command with the following command: $ sudo auditctl -l | grep gpasswd -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-gpasswd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-89455-0: Ensure auditd Collects Information on the Use of Privileged Commands - kmod | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "kmod" command with the following command: $ sudo auditctl -l | grep kmod -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-kmod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80989-7: Ensure auditd Collects Information on the Use of Privileged Commands - mount | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "mount" command with the following command: $ sudo auditctl -l | grep mount -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-mount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80729-7: Ensure auditd Collects Information on the Use of Privileged Commands - newgrp | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "newgrp" command with the following command: $ sudo auditctl -l | grep newgrp -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -k privileged-newgrp Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80730-5: Ensure auditd Collects Information on the Use of Privileged Commands - pam_timestamp_check | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "pam_timestamp_check" command with the following command: $ sudo auditctl -l | grep pam_timestamp_check -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -k privileged-pam_timestamp_check Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80731-3: Ensure auditd Collects Information on the Use of Privileged Commands - passwd | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "passwd" command with the following command: $ sudo auditctl -l | grep passwd -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-passwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80732-1: Ensure auditd Collects Information on the Use of Privileged Commands - postdrop | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postdrop" command with the following command: $ sudo auditctl -l | grep postdrop -a always,exit -F path=/usr/bin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postdrop Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80733-9: Ensure auditd Collects Information on the Use of Privileged Commands - postqueue | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postqueue" command with the following command: $ sudo auditctl -l | grep postqueue -a always,exit -F path=/usr/bin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postqueue Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-85944-7: Record Any Attempts to Run ssh-agent | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-agent" command with the following command: $ sudo auditctl -l | grep ssh-agent -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80735-4: Ensure auditd Collects Information on the Use of Privileged Commands - ssh-keysign | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-keysign" command with the following command: $ sudo auditctl -l | grep ssh-keysign -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-keysign Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80736-2: Ensure auditd Collects Information on the Use of Privileged Commands - su | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "su" command with the following command: $ sudo auditctl -l | grep su -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -k privileged-su Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80737-0: Ensure auditd Collects Information on the Use of Privileged Commands - sudo | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "sudo" command with the following command: $ sudo auditctl -l | grep sudo -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80739-6: Ensure auditd Collects Information on the Use of Privileged Commands - umount | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "umount" command with the following command: $ sudo auditctl -l | grep umount -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-umount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80740-4: Ensure auditd Collects Information on the Use of Privileged Commands - unix_chkpwd | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_chkpwd" command with the following command: $ sudo auditctl -l | grep unix_chkpwd -a always,exit -F path=/usr/bin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_chkpwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-89480-8: Ensure auditd Collects Information on the Use of Privileged Commands - unix_update | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_update" command with the following command: $ sudo auditctl -l | grep unix_update -a always,exit -F path=/usr/bin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80741-2: Ensure auditd Collects Information on the Use of Privileged Commands - userhelper | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "userhelper" command with the following command: $ sudo auditctl -l | grep userhelper -a always,exit -F path=/usr/bin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -k privileged-userhelper Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-86027-0: Ensure auditd Collects Information on the Use of Privileged Commands - usermod | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "usermod" command with the following command: $ sudo auditctl -l | grep usermod -a always,exit -F path=/usr/bin/usermod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-usermod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to generate audit records containing the full-text recording of privileged commands. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80825-3: Enable Auditing for Processes Which Start Prior to the Audit Daemon | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit=1'The command should not return any output. Is it the case that auditing is not enabled at boot time? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
low | |||
| CCI-000135 | SRG-OS-000042-GPOS-00020 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records containing the full-text recording of privileged commands. | CCE-80943-4: Extend Audit Backlog Limit for the Audit Daemon | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
Applicable - Configurable | Verify the operating system generates audit records containing the full-text recording of privileged commands. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit_backlog_limit=8192,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit_backlog_limit=8192.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit_backlog_limit=8192.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit_backlog_limit=8192'The command should not return any output. Is it the case that audit backlog limit is not configured? |
Configure the operating system to generate audit records containing the full-text recording of privileged commands. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
low | |||
| CCI-000135 | SRG-OS-000042-GPOS-00021 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing the individual identities of group account users. | CCE-81043-2: Ensure the audit Subsystem is Installed | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the individual identities of group users. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the actual account involved in the activity. | The audit package should be installed. | Applicable - Configurable | Verify the operating system produces audit records containing the individual identities of group account users. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to produce audit records containing the individual identities of group account users. | The audit package should be installed. | medium | |||
| CCI-000135 | SRG-OS-000042-GPOS-00021 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing the individual identities of group account users. | CCE-80872-5: Enable auditd Service | Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the individual identities of group users. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the actual account involved in the activity. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system produces audit records containing the individual identities of group account users. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to produce audit records containing the individual identities of group account users. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000139 | SRG-OS-000046-GPOS-00022 | TBD - Assigned by DISA after STIG release | The operating system must alert the ISSO and SA (at a minimum) in the event of an audit processing failure. | CCE-80678-6: Configure auditd mail_acct Action on Low Disk Space | It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system operation may be adversely affected. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded. This requirement applies to each audit data storage repository (i.e., distinct information system component where audit records are stored), the centralized audit storage capacity of organizations (i.e., all audit data storage repositories combined), or both. | The auditd service can be configured to send email to
a designated account in certain situations. Add or correct the following line
in /etc/audit/auditd.conf to ensure that administrators are notified
via email for those situations:
action_mail_acct = |
Applicable - Configurable | Verify the operating system alerts the ISSO and SA (at a minimum) in the event of an audit processing failure. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to notify the SA and/or ISSO (at a minimum) in the event of an audit processing failure with the following command:
$ sudo grep action_mail_acct /etc/audit/auditd.conf action_mail_acct =Is it the case that the value of the "action_mail_acct" keyword is not set to "" and/or other accounts for security personnel, the "action_mail_acct" keyword is missing, or the retuned line is commented out, ask the system administrator to indicate how they and the ISSO are notified of an audit process failure. If there is no evidence of the proper personnel being notified of an audit processing failure? |
Configure the operating system to alert the ISSO and SA (at a minimum) in the event of an audit processing failure. | The auditd service can be configured to send email to
a designated account in certain situations. Add or correct the following line
in /etc/audit/auditd.conf to ensure that administrators are notified
via email for those situations:
action_mail_acct = |
medium | |||
| CCI-000139 | SRG-OS-000046-GPOS-00022 | TBD - Assigned by DISA after STIG release | The operating system must alert the ISSO and SA (at a minimum) in the event of an audit processing failure. | CCE-85983-5: The Postfix package is installed | It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system operation may be adversely affected. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded. This requirement applies to each audit data storage repository (i.e., distinct information system component where audit records are stored), the centralized audit storage capacity of organizations (i.e., all audit data storage repositories combined), or both. | A mail server is required for sending emails.
The postfix package can be installed with the following command:
$ sudo yum install postfix |
Applicable - Configurable | Verify the operating system alerts the ISSO and SA (at a minimum) in the event of an audit processing failure. If it does not, this is a finding. | Run the following command to determine if the postfix package is installed: $ rpm -q postfixIs it the case that the package is not installed? |
Configure the operating system to alert the ISSO and SA (at a minimum) in the event of an audit processing failure. | A mail server is required for sending emails.
The postfix package can be installed with the following command:
$ sudo yum install postfix |
medium | |||
| CCI-000139 | SRG-OS-000046-GPOS-00022 | TBD - Assigned by DISA after STIG release | The operating system must alert the ISSO and SA (at a minimum) in the event of an audit processing failure. | CCE-89063-2: Configure System to Forward All Mail From Postmaster to The Root Account | It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system operation may be adversely affected. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded. This requirement applies to each audit data storage repository (i.e., distinct information system component where audit records are stored), the centralized audit storage capacity of organizations (i.e., all audit data storage repositories combined), or both. | Verify the administrators are notified in the event of an audit processing failure.
Check that the "/etc/aliases" file has a defined value for "root".
$ sudo grep "postmaster:\s*root$" /etc/aliases postmaster: root |
Applicable - Configurable | Verify the operating system alerts the ISSO and SA (at a minimum) in the event of an audit processing failure. If it does not, this is a finding. | Find the list of alias maps used by the Postfix mail server:
$ sudo postconf alias_mapsQuery the Postfix alias maps for an alias for the postmaster user: $ sudo postmap -q postmaster hash:/etc/aliasesThe output should return root. Is it the case that the alias is not set or is not root? |
Configure the operating system to alert the ISSO and SA (at a minimum) in the event of an audit processing failure. | Verify the administrators are notified in the event of an audit processing failure.
Check that the "/etc/aliases" file has a defined value for "root".
$ sudo grep "postmaster:\s*root$" /etc/aliases postmaster: root |
medium | |||
| CCI-000140 | SRG-OS-000047-GPOS-00023 | TBD - Assigned by DISA after STIG release | The operating system must shut down by default upon audit failure (unless availability is an overriding concern). | CCE-84046-2: Configure auditd Disk Error Action on Disk Error | It is critical that when the operating system is at risk of failing to process audit logs as required, it takes action to mitigate the failure. Audit processing failures include: software/hardware errors; failures in the audit capturing mechanisms; and audit storage capacity being reached or exceeded. Responses to audit failure depend upon the nature of the failure mode. When availability is an overriding concern, other approved actions in response to an audit failure are as follows: 1) If the failure was caused by the lack of audit record storage capacity, the operating system must continue generating audit records if possible (automatically restarting the audit service if necessary), overwriting the oldest audit records in a first-in-first-out manner. 2) If audit records are sent to a centralized collection server and communication with this server is lost or the server fails, the operating system must queue audit records locally until communication is restored or until the audit records are retrieved manually. Upon restoration of the connection to the centralized collection server, action should be taken to synchronize the local audit data with the collection server. | The auditd service can be configured to take an action
when there is a disk error.
Edit the file /etc/audit/auditd.conf. Add or modify the following line,
substituting ACTION appropriately:
disk_error_action = ACTIONSet this value to single to cause the system to switch to single-user mode for corrective action. Acceptable values also include syslog, exec, single, and halt. For certain systems, the need for availability outweighs the need to log all actions, and a different setting should be determined. Details regarding all possible values for ACTION are described in the auditd.conf man page. |
Applicable - Configurable | Verify the operating system shuts down by default upon audit failure (unless availability is an overriding concern). If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 takes the appropriate action when an audit processing failure occurs. Check that Red Hat Enterprise Linux 8 takes the appropriate action when an audit processing failure occurs with the following command: $ sudo grep disk_error_action /etc/audit/auditd.conf disk_error_action = If the value of the "disk_error_action" option is not "SYSLOG", "SINGLE", or "HALT", or the line is commented out, ask the system administrator to indicate how the system takes appropriate action when an audit process failure occurs. Is it the case that there is no evidence of appropriate action? | Configure the operating system to shut down by default upon audit failure (unless availability is an overriding concern). | The auditd service can be configured to take an action
when there is a disk error.
Edit the file /etc/audit/auditd.conf. Add or modify the following line,
substituting ACTION appropriately:
disk_error_action = ACTIONSet this value to single to cause the system to switch to single-user mode for corrective action. Acceptable values also include syslog, exec, single, and halt. For certain systems, the need for availability outweighs the need to log all actions, and a different setting should be determined. Details regarding all possible values for ACTION are described in the auditd.conf man page. |
medium | |||
| CCI-000140 | SRG-OS-000047-GPOS-00023 | TBD - Assigned by DISA after STIG release | The operating system must shut down by default upon audit failure (unless availability is an overriding concern). | CCE-84045-4: Configure auditd Disk Full Action when Disk Space Is Full | It is critical that when the operating system is at risk of failing to process audit logs as required, it takes action to mitigate the failure. Audit processing failures include: software/hardware errors; failures in the audit capturing mechanisms; and audit storage capacity being reached or exceeded. Responses to audit failure depend upon the nature of the failure mode. When availability is an overriding concern, other approved actions in response to an audit failure are as follows: 1) If the failure was caused by the lack of audit record storage capacity, the operating system must continue generating audit records if possible (automatically restarting the audit service if necessary), overwriting the oldest audit records in a first-in-first-out manner. 2) If audit records are sent to a centralized collection server and communication with this server is lost or the server fails, the operating system must queue audit records locally until communication is restored or until the audit records are retrieved manually. Upon restoration of the connection to the centralized collection server, action should be taken to synchronize the local audit data with the collection server. | The auditd service can be configured to take an action
when disk space is running low but prior to running out of space completely.
Edit the file /etc/audit/auditd.conf. Add or modify the following line,
substituting ACTION appropriately:
disk_full_action = ACTIONSet this value to single to cause the system to switch to single-user mode for corrective action. Acceptable values also include syslog, exec, single, and halt. For certain systems, the need for availability outweighs the need to log all actions, and a different setting should be determined. Details regarding all possible values for ACTION are described in the auditd.conf man page. |
Applicable - Configurable | Verify the operating system shuts down by default upon audit failure (unless availability is an overriding concern). If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 takes the appropriate action when the audit storage volume is full. Check that Red Hat Enterprise Linux 8 takes the appropriate action when the audit storage volume is full with the following command: $ sudo grep disk_full_action /etc/audit/auditd.conf disk_full_action = If the value of the "disk_full_action" option is not "SYSLOG", "SINGLE", or "HALT", or the line is commented out, ask the system administrator to indicate how the system takes appropriate action when an audit storage volume is full. Is it the case that there is no evidence of appropriate action? | Configure the operating system to shut down by default upon audit failure (unless availability is an overriding concern). | The auditd service can be configured to take an action
when disk space is running low but prior to running out of space completely.
Edit the file /etc/audit/auditd.conf. Add or modify the following line,
substituting ACTION appropriately:
disk_full_action = ACTIONSet this value to single to cause the system to switch to single-user mode for corrective action. Acceptable values also include syslog, exec, single, and halt. For certain systems, the need for availability outweighs the need to log all actions, and a different setting should be determined. Details regarding all possible values for ACTION are described in the auditd.conf man page. |
medium | |||
| CCI-000154 | SRG-OS-000051-GPOS-00024 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability to centrally review and analyze audit records from multiple components within the system. | CCE-81043-2: Ensure the audit Subsystem is Installed | Successful incident response and auditing relies on timely, accurate system information and analysis in order to allow the organization to identify and respond to potential incidents in a proficient manner. If the operating system does not provide the ability to centrally review the operating system logs, forensic analysis is negatively impacted. Segregation of logging data to multiple disparate computer systems is counterproductive and makes log analysis and log event alarming difficult to implement and manage, particularly when the system has multiple logging components writing to different locations or systems. To support the centralized capability, the operating system must be able to provide the information in a format that can be extracted and used, allowing the application performing the centralization of the log records to meet this requirement. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides the capability to centrally review and analyze audit records from multiple components within the system. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to provide the capability to centrally review and analyze audit records from multiple components within the system. | The audit package should be installed. | medium | |||
| CCI-000154 | SRG-OS-000051-GPOS-00024 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability to centrally review and analyze audit records from multiple components within the system. | CCE-80847-7: Ensure rsyslog is Installed | Successful incident response and auditing relies on timely, accurate system information and analysis in order to allow the organization to identify and respond to potential incidents in a proficient manner. If the operating system does not provide the ability to centrally review the operating system logs, forensic analysis is negatively impacted. Segregation of logging data to multiple disparate computer systems is counterproductive and makes log analysis and log event alarming difficult to implement and manage, particularly when the system has multiple logging components writing to different locations or systems. To support the centralized capability, the operating system must be able to provide the information in a format that can be extracted and used, allowing the application performing the centralization of the log records to meet this requirement. | Rsyslog is installed by default. The rsyslog package can be installed with the following command: $ sudo yum install rsyslog |
Applicable - Configurable | Verify the operating system provides the capability to centrally review and analyze audit records from multiple components within the system. If it does not, this is a finding. | Run the following command to determine if the rsyslog package is installed: $ rpm -q rsyslogIs it the case that the package is not installed? |
Configure the operating system to provide the capability to centrally review and analyze audit records from multiple components within the system. | Rsyslog is installed by default. The rsyslog package can be installed with the following command: $ sudo yum install rsyslog |
medium | |||
| CCI-000154 | SRG-OS-000051-GPOS-00024 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability to centrally review and analyze audit records from multiple components within the system. | CCE-80872-5: Enable auditd Service | Successful incident response and auditing relies on timely, accurate system information and analysis in order to allow the organization to identify and respond to potential incidents in a proficient manner. If the operating system does not provide the ability to centrally review the operating system logs, forensic analysis is negatively impacted. Segregation of logging data to multiple disparate computer systems is counterproductive and makes log analysis and log event alarming difficult to implement and manage, particularly when the system has multiple logging components writing to different locations or systems. To support the centralized capability, the operating system must be able to provide the information in a format that can be extracted and used, allowing the application performing the centralization of the log records to meet this requirement. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides the capability to centrally review and analyze audit records from multiple components within the system. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to provide the capability to centrally review and analyze audit records from multiple components within the system. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000158 | SRG-OS-000054-GPOS-00025 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability to filter audit records for events of interest based upon all audit fields within audit records. | CCE-81043-2: Ensure the audit Subsystem is Installed | The ability to specify the event criteria that are of interest provides the individuals reviewing the logs with the ability to quickly isolate and identify these events without having to review entries that are of little or no consequence to the investigation. Without this capability, forensic investigations are impeded. Events of interest can be identified by the content of specific audit record fields, including, for example, identities of individuals, event types, event locations, event times, event dates, system resources involved, IP addresses involved, or information objects accessed. Organizations may define audit event criteria to any degree of granularity required, for example, locations selectable by general networking location (e.g., by network or subnetwork) or selectable by specific information system component. This requires operating systems to provide the capability to customize audit record reports based on all available criteria. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides the capability to filter audit records for events of interest based upon all audit fields within audit records. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to provide the capability to filter audit records for events of interest based upon all audit fields within audit records. | The audit package should be installed. | medium | |||
| CCI-000158 | SRG-OS-000054-GPOS-00025 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability to filter audit records for events of interest based upon all audit fields within audit records. | CCE-80872-5: Enable auditd Service | The ability to specify the event criteria that are of interest provides the individuals reviewing the logs with the ability to quickly isolate and identify these events without having to review entries that are of little or no consequence to the investigation. Without this capability, forensic investigations are impeded. Events of interest can be identified by the content of specific audit record fields, including, for example, identities of individuals, event types, event locations, event times, event dates, system resources involved, IP addresses involved, or information objects accessed. Organizations may define audit event criteria to any degree of granularity required, for example, locations selectable by general networking location (e.g., by network or subnetwork) or selectable by specific information system component. This requires operating systems to provide the capability to customize audit record reports based on all available criteria. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides the capability to filter audit records for events of interest based upon all audit fields within audit records. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to provide the capability to filter audit records for events of interest based upon all audit fields within audit records. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| V-56669 | SRG-OS-000055-GPOS-00026 | TBD - Assigned by DISA after STIG release | The operating system must use internal system clocks to generate time stamps for audit records. | Without an internal clock used as the reference for the time stored on each event to provide a trusted common reference for the time, forensic analysis would be impeded. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. If the internal clock is not used, the system may not be able to provide time stamps for log messages. Additionally, externally generated time stamps may not be accurate. | |||||||||||
| CCI-000162 | SRG-OS-000057-GPOS-00027 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized read access. | CCE-80708-1: Make the auditd Configuration Immutable | Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make the auditd configuration
immutable:
-e 2If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make the auditd configuration immutable: -e 2With this setting, a reboot will be required to change any audit rules. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized read access. If it does not, this is a finding. | Verify the audit system prevents unauthorized changes with the following command:
$ sudo grep "^\s*[^#]" /etc/audit/audit.rules | tail -1 -e 2Is it the case that the audit system is not set to be immutable by adding the "-e 2" option to the end of "/etc/audit/audit.rules"? |
Configure the operating system to protect audit information from unauthorized read access. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make the auditd configuration
immutable:
-e 2If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make the auditd configuration immutable: -e 2With this setting, a reboot will be required to change any audit rules. |
medium | |||
| CCI-000162 | SRG-OS-000057-GPOS-00027 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized read access. | CCE-90783-2: Configure immutable Audit login UIDs | Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized read access. If it does not, this is a finding. | To determine if the system is configured to make login UIDs immutable, run
one of the following commands.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), run the following:
sudo grep immutable /etc/audit/rules.d/*.rulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, run the following command: sudo grep immutable /etc/audit/audit.rulesThe following line should be returned: --loginuid-immutableIs it the case that the system is not configured to make login UIDs immutable? |
Configure the operating system to protect audit information from unauthorized read access. | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
medium | |||
| CCI-000162 | SRG-OS-000057-GPOS-00027 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized read access. | CCE-88225-8: System Audit Directories Must Be Group Owned By Root | Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. | All audit directories must be group owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit, run the command:
$ sudo chgrp root /var/log/auditIf log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit directories to this specific group. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized read access. If it does not, this is a finding. | Determine the audit log group by running the following command: $ sudo grep -P '^[ ]*log_group[ ]+=.*$' /etc/audit/auditd.conf Then, check that all directories within the /var/log/audit directory are owned by the group specified as log_group or by root if the log_group is not specified. Run the following command: $ sudo find /var/log/audit -type d -printf "%p %g\n" All listed directories must be owned by the log_group or by root if the log_group is not specified. Is it the case that there is a directory owned by different group? | Configure the operating system to protect audit information from unauthorized read access. | All audit directories must be group owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit, run the command:
$ sudo chgrp root /var/log/auditIf log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit directories to this specific group. |
medium | |||
| CCI-000162 | SRG-OS-000057-GPOS-00027 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized read access. | CCE-88226-6: System Audit Directories Must Be Owned By Root | Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. | All audit directories must be owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit, run the command:
$ sudo chown root /var/log/audit |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized read access. If it does not, this is a finding. | Determine where the audit logs are stored with the following command: $ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Determine the owner of the audit log directory by using the output of the above command (default: "/var/log/audit/"). Run the following command with the correct audit log directory path: $ sudo ls -ld /var/log/audit drwx------ 2 root root 23 Jun 11 11:56 /var/log/audit The audit log directory must be owned by "root" Is it the case that the directory is not owned by root? | Configure the operating system to protect audit information from unauthorized read access. | All audit directories must be owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit, run the command:
$ sudo chown root /var/log/audit |
medium | |||
| CCI-000162 | SRG-OS-000057-GPOS-00027 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized read access. | CCE-84048-8: System Audit Logs Must Have Mode 0750 or Less Permissive | Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. |
Verify the audit log directories have a mode of "0700" or less permissive by first determining
where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log directory to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0700 audit_log_directoryBy default, audit_log_directory is "/var/log/audit". |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized read access. If it does not, this is a finding. | Verify the audit log directories have a correct mode or less permissive mode. Find the location of the audit logs: $ sudo grep "^log_file" /etc/audit/auditd.conf Run the following command to check the mode of the system audit logs: $ sudo stat -c "%a %n" [audit_log_directory] Replace "[audit_log_directory]" to the correct audit log directory path, by default this location is "/var/log/audit". The correct permissions are 0700 Is it the case that audit logs have a more permissive mode? | Configure the operating system to protect audit information from unauthorized read access. |
Verify the audit log directories have a mode of "0700" or less permissive by first determining
where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log directory to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0700 audit_log_directoryBy default, audit_log_directory is "/var/log/audit". |
medium | |||
| CCI-000162 | SRG-OS-000057-GPOS-00027 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized read access. | CCE-88227-4: System Audit Logs Must Be Group Owned By Root | Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. | All audit logs must be group owned by root user. The path for audit log can
be configured via log_file parameter in /etc/audit/auditd.confor, by default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit/*, run the command:
$ sudo chgrp root /var/log/audit/*If log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit logs to this specific group. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized read access. If it does not, this is a finding. | Check group owners of the system audit logs.
First, determine where the audit log file is located.
$ sudo grep -iw ^log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logThe log_file option specifies the audit log file path. If the log_file option isn't defined, check all files within /var/log/audit directory. Then, determine the audit log group by running the following command: $ sudo grep -P '^[ ]*log_group[ ]+=.*$' /etc/audit/auditd.confThen, check that the audit log file is owned by the correct group. Run the following command to display the owner of the audit log file: $ sudo stat -c "%n %G" log_fileThe audit log file must be owned by the log_group or by root if the log_group is not specified. Is it the case that audit log files are owned by incorrect group? |
Configure the operating system to protect audit information from unauthorized read access. | All audit logs must be group owned by root user. The path for audit log can
be configured via log_file parameter in /etc/audit/auditd.confor, by default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit/*, run the command:
$ sudo chgrp root /var/log/audit/*If log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit logs to this specific group. |
medium | |||
| CCI-000162 | SRG-OS-000057-GPOS-00027 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized read access. | CCE-88228-2: System Audit Logs Must Be Owned By Root | Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. | All audit logs must be owned by root user. The path for audit log can be
configured via log_file parameter in /etc/audit/auditd.confor by default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit/*, run the command:
$ sudo chown root /var/log/audit/* |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized read access. If it does not, this is a finding. | Verify the audit logs are owned by "root". First, determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logUsing the location of the audit log file, determine if the audit log is owned by "root" using the following command: $ sudo stat -c "%n %U" /var/log/audit/audit.logAudit logs must be owned by user root. If the log_file isn't defined in /etc/audit/auditd.conf, check all files in /var/log/audit/ directory instead. Is it the case that the audit log is not owned by root? |
Configure the operating system to protect audit information from unauthorized read access. | All audit logs must be owned by root user. The path for audit log can be
configured via log_file parameter in /etc/audit/auditd.confor by default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit/*, run the command:
$ sudo chown root /var/log/audit/* |
medium | |||
| CCI-000162 | SRG-OS-000057-GPOS-00027 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized read access. | CCE-80819-6: System Audit Logs Must Have Mode 0640 or Less Permissive | Unauthorized disclosure of audit records can reveal system and configuration data to attackers, thus compromising its confidentiality. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit operating system activity. |
Determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0600 audit_log_fileBy default, audit_log_file is "/var/log/audit/audit.log". |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized read access. If it does not, this is a finding. | Run the following command to check the mode of the system audit logs:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file=/var/log/audit/audit.log $ sudo stat -c "%n %a" /var/log/audit/* $ sudo ls -l /var/log/auditAudit logs must be mode 0640 or less permissive. Is it the case that any permissions are more permissive? |
Configure the operating system to protect audit information from unauthorized read access. |
Determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0600 audit_log_fileBy default, audit_log_file is "/var/log/audit/audit.log". |
medium | |||
| CCI-000163 | SRG-OS-000058-GPOS-00028 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized modification. | CCE-80708-1: Make the auditd Configuration Immutable | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized modification. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make the auditd configuration
immutable:
-e 2If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make the auditd configuration immutable: -e 2With this setting, a reboot will be required to change any audit rules. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized modification. If it does not, this is a finding. | Verify the audit system prevents unauthorized changes with the following command:
$ sudo grep "^\s*[^#]" /etc/audit/audit.rules | tail -1 -e 2Is it the case that the audit system is not set to be immutable by adding the "-e 2" option to the end of "/etc/audit/audit.rules"? |
Configure the operating system to protect audit information from unauthorized modification. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make the auditd configuration
immutable:
-e 2If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make the auditd configuration immutable: -e 2With this setting, a reboot will be required to change any audit rules. |
medium | |||
| CCI-000163 | SRG-OS-000058-GPOS-00028 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized modification. | CCE-90783-2: Configure immutable Audit login UIDs | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized modification. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized modification. If it does not, this is a finding. | To determine if the system is configured to make login UIDs immutable, run
one of the following commands.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), run the following:
sudo grep immutable /etc/audit/rules.d/*.rulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, run the following command: sudo grep immutable /etc/audit/audit.rulesThe following line should be returned: --loginuid-immutableIs it the case that the system is not configured to make login UIDs immutable? |
Configure the operating system to protect audit information from unauthorized modification. | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
medium | |||
| CCI-000163 | SRG-OS-000058-GPOS-00028 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized modification. | CCE-88225-8: System Audit Directories Must Be Group Owned By Root | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized modification. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | All audit directories must be group owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit, run the command:
$ sudo chgrp root /var/log/auditIf log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit directories to this specific group. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized modification. If it does not, this is a finding. | Determine the audit log group by running the following command: $ sudo grep -P '^[ ]*log_group[ ]+=.*$' /etc/audit/auditd.conf Then, check that all directories within the /var/log/audit directory are owned by the group specified as log_group or by root if the log_group is not specified. Run the following command: $ sudo find /var/log/audit -type d -printf "%p %g\n" All listed directories must be owned by the log_group or by root if the log_group is not specified. Is it the case that there is a directory owned by different group? | Configure the operating system to protect audit information from unauthorized modification. | All audit directories must be group owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit, run the command:
$ sudo chgrp root /var/log/auditIf log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit directories to this specific group. |
medium | |||
| CCI-000163 | SRG-OS-000058-GPOS-00028 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized modification. | CCE-88226-6: System Audit Directories Must Be Owned By Root | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized modification. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | All audit directories must be owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit, run the command:
$ sudo chown root /var/log/audit |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized modification. If it does not, this is a finding. | Determine where the audit logs are stored with the following command: $ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Determine the owner of the audit log directory by using the output of the above command (default: "/var/log/audit/"). Run the following command with the correct audit log directory path: $ sudo ls -ld /var/log/audit drwx------ 2 root root 23 Jun 11 11:56 /var/log/audit The audit log directory must be owned by "root" Is it the case that the directory is not owned by root? | Configure the operating system to protect audit information from unauthorized modification. | All audit directories must be owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit, run the command:
$ sudo chown root /var/log/audit |
medium | |||
| CCI-000163 | SRG-OS-000058-GPOS-00028 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized modification. | CCE-84048-8: System Audit Logs Must Have Mode 0750 or Less Permissive | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized modification. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. |
Verify the audit log directories have a mode of "0700" or less permissive by first determining
where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log directory to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0700 audit_log_directoryBy default, audit_log_directory is "/var/log/audit". |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized modification. If it does not, this is a finding. | Verify the audit log directories have a correct mode or less permissive mode. Find the location of the audit logs: $ sudo grep "^log_file" /etc/audit/auditd.conf Run the following command to check the mode of the system audit logs: $ sudo stat -c "%a %n" [audit_log_directory] Replace "[audit_log_directory]" to the correct audit log directory path, by default this location is "/var/log/audit". The correct permissions are 0700 Is it the case that audit logs have a more permissive mode? | Configure the operating system to protect audit information from unauthorized modification. |
Verify the audit log directories have a mode of "0700" or less permissive by first determining
where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log directory to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0700 audit_log_directoryBy default, audit_log_directory is "/var/log/audit". |
medium | |||
| CCI-000163 | SRG-OS-000058-GPOS-00028 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized modification. | CCE-88227-4: System Audit Logs Must Be Group Owned By Root | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized modification. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | All audit logs must be group owned by root user. The path for audit log can
be configured via log_file parameter in /etc/audit/auditd.confor, by default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit/*, run the command:
$ sudo chgrp root /var/log/audit/*If log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit logs to this specific group. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized modification. If it does not, this is a finding. | Check group owners of the system audit logs.
First, determine where the audit log file is located.
$ sudo grep -iw ^log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logThe log_file option specifies the audit log file path. If the log_file option isn't defined, check all files within /var/log/audit directory. Then, determine the audit log group by running the following command: $ sudo grep -P '^[ ]*log_group[ ]+=.*$' /etc/audit/auditd.confThen, check that the audit log file is owned by the correct group. Run the following command to display the owner of the audit log file: $ sudo stat -c "%n %G" log_fileThe audit log file must be owned by the log_group or by root if the log_group is not specified. Is it the case that audit log files are owned by incorrect group? |
Configure the operating system to protect audit information from unauthorized modification. | All audit logs must be group owned by root user. The path for audit log can
be configured via log_file parameter in /etc/audit/auditd.confor, by default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit/*, run the command:
$ sudo chgrp root /var/log/audit/*If log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit logs to this specific group. |
medium | |||
| CCI-000163 | SRG-OS-000058-GPOS-00028 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized modification. | CCE-88228-2: System Audit Logs Must Be Owned By Root | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized modification. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | All audit logs must be owned by root user. The path for audit log can be
configured via log_file parameter in /etc/audit/auditd.confor by default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit/*, run the command:
$ sudo chown root /var/log/audit/* |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized modification. If it does not, this is a finding. | Verify the audit logs are owned by "root". First, determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logUsing the location of the audit log file, determine if the audit log is owned by "root" using the following command: $ sudo stat -c "%n %U" /var/log/audit/audit.logAudit logs must be owned by user root. If the log_file isn't defined in /etc/audit/auditd.conf, check all files in /var/log/audit/ directory instead. Is it the case that the audit log is not owned by root? |
Configure the operating system to protect audit information from unauthorized modification. | All audit logs must be owned by root user. The path for audit log can be
configured via log_file parameter in /etc/audit/auditd.confor by default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit/*, run the command:
$ sudo chown root /var/log/audit/* |
medium | |||
| CCI-000163 | SRG-OS-000058-GPOS-00028 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized modification. | CCE-80819-6: System Audit Logs Must Have Mode 0640 or Less Permissive | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized modification. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. |
Determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0600 audit_log_fileBy default, audit_log_file is "/var/log/audit/audit.log". |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized modification. If it does not, this is a finding. | Run the following command to check the mode of the system audit logs:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file=/var/log/audit/audit.log $ sudo stat -c "%n %a" /var/log/audit/* $ sudo ls -l /var/log/auditAudit logs must be mode 0640 or less permissive. Is it the case that any permissions are more permissive? |
Configure the operating system to protect audit information from unauthorized modification. |
Determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0600 audit_log_fileBy default, audit_log_file is "/var/log/audit/audit.log". |
medium | |||
| CCI-000164 | SRG-OS-000059-GPOS-00029 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized deletion. | CCE-80708-1: Make the auditd Configuration Immutable | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods, which will depend upon system architecture and design. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make the auditd configuration
immutable:
-e 2If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make the auditd configuration immutable: -e 2With this setting, a reboot will be required to change any audit rules. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized deletion. If it does not, this is a finding. | Verify the audit system prevents unauthorized changes with the following command:
$ sudo grep "^\s*[^#]" /etc/audit/audit.rules | tail -1 -e 2Is it the case that the audit system is not set to be immutable by adding the "-e 2" option to the end of "/etc/audit/audit.rules"? |
Configure the operating system to protect audit information from unauthorized deletion. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make the auditd configuration
immutable:
-e 2If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make the auditd configuration immutable: -e 2With this setting, a reboot will be required to change any audit rules. |
medium | |||
| CCI-000164 | SRG-OS-000059-GPOS-00029 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized deletion. | CCE-90783-2: Configure immutable Audit login UIDs | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods, which will depend upon system architecture and design. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized deletion. If it does not, this is a finding. | To determine if the system is configured to make login UIDs immutable, run
one of the following commands.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), run the following:
sudo grep immutable /etc/audit/rules.d/*.rulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, run the following command: sudo grep immutable /etc/audit/audit.rulesThe following line should be returned: --loginuid-immutableIs it the case that the system is not configured to make login UIDs immutable? |
Configure the operating system to protect audit information from unauthorized deletion. | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
medium | |||
| CCI-000164 | SRG-OS-000059-GPOS-00029 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized deletion. | CCE-88225-8: System Audit Directories Must Be Group Owned By Root | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods, which will depend upon system architecture and design. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | All audit directories must be group owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit, run the command:
$ sudo chgrp root /var/log/auditIf log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit directories to this specific group. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized deletion. If it does not, this is a finding. | Determine the audit log group by running the following command: $ sudo grep -P '^[ ]*log_group[ ]+=.*$' /etc/audit/auditd.conf Then, check that all directories within the /var/log/audit directory are owned by the group specified as log_group or by root if the log_group is not specified. Run the following command: $ sudo find /var/log/audit -type d -printf "%p %g\n" All listed directories must be owned by the log_group or by root if the log_group is not specified. Is it the case that there is a directory owned by different group? | Configure the operating system to protect audit information from unauthorized deletion. | All audit directories must be group owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit, run the command:
$ sudo chgrp root /var/log/auditIf log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit directories to this specific group. |
medium | |||
| CCI-000164 | SRG-OS-000059-GPOS-00029 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized deletion. | CCE-88226-6: System Audit Directories Must Be Owned By Root | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods, which will depend upon system architecture and design. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | All audit directories must be owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit, run the command:
$ sudo chown root /var/log/audit |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized deletion. If it does not, this is a finding. | Determine where the audit logs are stored with the following command: $ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Determine the owner of the audit log directory by using the output of the above command (default: "/var/log/audit/"). Run the following command with the correct audit log directory path: $ sudo ls -ld /var/log/audit drwx------ 2 root root 23 Jun 11 11:56 /var/log/audit The audit log directory must be owned by "root" Is it the case that the directory is not owned by root? | Configure the operating system to protect audit information from unauthorized deletion. | All audit directories must be owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit, run the command:
$ sudo chown root /var/log/audit |
medium | |||
| CCI-000164 | SRG-OS-000059-GPOS-00029 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized deletion. | CCE-84048-8: System Audit Logs Must Have Mode 0750 or Less Permissive | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods, which will depend upon system architecture and design. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. |
Verify the audit log directories have a mode of "0700" or less permissive by first determining
where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log directory to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0700 audit_log_directoryBy default, audit_log_directory is "/var/log/audit". |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized deletion. If it does not, this is a finding. | Verify the audit log directories have a correct mode or less permissive mode. Find the location of the audit logs: $ sudo grep "^log_file" /etc/audit/auditd.conf Run the following command to check the mode of the system audit logs: $ sudo stat -c "%a %n" [audit_log_directory] Replace "[audit_log_directory]" to the correct audit log directory path, by default this location is "/var/log/audit". The correct permissions are 0700 Is it the case that audit logs have a more permissive mode? | Configure the operating system to protect audit information from unauthorized deletion. |
Verify the audit log directories have a mode of "0700" or less permissive by first determining
where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log directory to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0700 audit_log_directoryBy default, audit_log_directory is "/var/log/audit". |
medium | |||
| CCI-000164 | SRG-OS-000059-GPOS-00029 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized deletion. | CCE-88227-4: System Audit Logs Must Be Group Owned By Root | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods, which will depend upon system architecture and design. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | All audit logs must be group owned by root user. The path for audit log can
be configured via log_file parameter in /etc/audit/auditd.confor, by default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit/*, run the command:
$ sudo chgrp root /var/log/audit/*If log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit logs to this specific group. |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized deletion. If it does not, this is a finding. | Check group owners of the system audit logs.
First, determine where the audit log file is located.
$ sudo grep -iw ^log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logThe log_file option specifies the audit log file path. If the log_file option isn't defined, check all files within /var/log/audit directory. Then, determine the audit log group by running the following command: $ sudo grep -P '^[ ]*log_group[ ]+=.*$' /etc/audit/auditd.confThen, check that the audit log file is owned by the correct group. Run the following command to display the owner of the audit log file: $ sudo stat -c "%n %G" log_fileThe audit log file must be owned by the log_group or by root if the log_group is not specified. Is it the case that audit log files are owned by incorrect group? |
Configure the operating system to protect audit information from unauthorized deletion. | All audit logs must be group owned by root user. The path for audit log can
be configured via log_file parameter in /etc/audit/auditd.confor, by default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit/*, run the command:
$ sudo chgrp root /var/log/audit/*If log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit logs to this specific group. |
medium | |||
| CCI-000164 | SRG-OS-000059-GPOS-00029 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized deletion. | CCE-88228-2: System Audit Logs Must Be Owned By Root | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods, which will depend upon system architecture and design. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. | All audit logs must be owned by root user. The path for audit log can be
configured via log_file parameter in /etc/audit/auditd.confor by default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit/*, run the command:
$ sudo chown root /var/log/audit/* |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized deletion. If it does not, this is a finding. | Verify the audit logs are owned by "root". First, determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logUsing the location of the audit log file, determine if the audit log is owned by "root" using the following command: $ sudo stat -c "%n %U" /var/log/audit/audit.logAudit logs must be owned by user root. If the log_file isn't defined in /etc/audit/auditd.conf, check all files in /var/log/audit/ directory instead. Is it the case that the audit log is not owned by root? |
Configure the operating system to protect audit information from unauthorized deletion. | All audit logs must be owned by root user. The path for audit log can be
configured via log_file parameter in /etc/audit/auditd.confor by default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit/*, run the command:
$ sudo chown root /var/log/audit/* |
medium | |||
| CCI-000164 | SRG-OS-000059-GPOS-00029 | TBD - Assigned by DISA after STIG release | The operating system must protect audit information from unauthorized deletion. | CCE-80819-6: System Audit Logs Must Have Mode 0640 or Less Permissive | If audit information were to become compromised, then forensic analysis and discovery of the true source of potentially malicious system activity is impossible to achieve. To ensure the veracity of audit information, the operating system must protect audit information from unauthorized deletion. This requirement can be achieved through multiple methods, which will depend upon system architecture and design. Audit information includes all information (e.g., audit records, audit settings, audit reports) needed to successfully audit information system activity. |
Determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0600 audit_log_fileBy default, audit_log_file is "/var/log/audit/audit.log". |
Applicable - Configurable | Verify the operating system protects audit information from unauthorized deletion. If it does not, this is a finding. | Run the following command to check the mode of the system audit logs:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file=/var/log/audit/audit.log $ sudo stat -c "%n %a" /var/log/audit/* $ sudo ls -l /var/log/auditAudit logs must be mode 0640 or less permissive. Is it the case that any permissions are more permissive? |
Configure the operating system to protect audit information from unauthorized deletion. |
Determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0600 audit_log_fileBy default, audit_log_file is "/var/log/audit/audit.log". |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-89446-9: Record Any Attempts to Run chacl | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chacl" command with the following command: $ sudo auditctl -l | grep chacl -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80698-4: Record Any Attempts to Run chcon | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80700-8: Record Any Attempts to Run semanage | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "semanage" command with the following command: $ sudo auditctl -l | grep semanage -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-88437-9: Record Any Attempts to Run setfacl | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfacl" command with the following command: $ sudo auditctl -l | grep setfacl -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-82280-9: Record Any Attempts to Run setfiles | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfiles" command with the following command: $ sudo auditctl -l | grep setfiles -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80701-6: Record Any Attempts to Run setsebool | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setsebool" command with the following command: $ sudo auditctl -l | grep setsebool -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -k privileged Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80711-5: Ensure auditd Collects Information on Kernel Module Unloading - delete_module | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
delete_module system call, run the following command:
$ sudo grep "delete_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80712-3: Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
finit_module system call, run the following command:
$ sudo grep "finit_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80713-1: Ensure auditd Collects Information on Kernel Module Loading - init_module | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
init_module system call, run the following command:
$ sudo grep "init_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80719-8: Record Attempts to Alter Logon and Logout Events - lastlog | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/var/log/lastlog" with the following command: $ sudo auditctl -l | grep /var/log/lastlog -w /var/log/lastlog -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80722-2: Ensure auditd Collects Information on Exporting to Media (successful) | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
mount system call, run the following command:
$ sudo grep "mount" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80725-5: Ensure auditd Collects Information on the Use of Privileged Commands - chage | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chage" command with the following command: $ sudo auditctl -l | grep chage -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chage Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80726-3: Ensure auditd Collects Information on the Use of Privileged Commands - chsh | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chsh" command with the following command: $ sudo auditctl -l | grep chsh -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chsh Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80727-1: Ensure auditd Collects Information on the Use of Privileged Commands - crontab | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "crontab" command with the following command: $ sudo auditctl -l | grep crontab -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -k privileged-crontab Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80728-9: Ensure auditd Collects Information on the Use of Privileged Commands - gpasswd | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "gpasswd" command with the following command: $ sudo auditctl -l | grep gpasswd -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-gpasswd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-89455-0: Ensure auditd Collects Information on the Use of Privileged Commands - kmod | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "kmod" command with the following command: $ sudo auditctl -l | grep kmod -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-kmod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80989-7: Ensure auditd Collects Information on the Use of Privileged Commands - mount | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "mount" command with the following command: $ sudo auditctl -l | grep mount -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-mount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80729-7: Ensure auditd Collects Information on the Use of Privileged Commands - newgrp | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "newgrp" command with the following command: $ sudo auditctl -l | grep newgrp -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -k privileged-newgrp Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80730-5: Ensure auditd Collects Information on the Use of Privileged Commands - pam_timestamp_check | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "pam_timestamp_check" command with the following command: $ sudo auditctl -l | grep pam_timestamp_check -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -k privileged-pam_timestamp_check Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80731-3: Ensure auditd Collects Information on the Use of Privileged Commands - passwd | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "passwd" command with the following command: $ sudo auditctl -l | grep passwd -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-passwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80732-1: Ensure auditd Collects Information on the Use of Privileged Commands - postdrop | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postdrop" command with the following command: $ sudo auditctl -l | grep postdrop -a always,exit -F path=/usr/bin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postdrop Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80733-9: Ensure auditd Collects Information on the Use of Privileged Commands - postqueue | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postqueue" command with the following command: $ sudo auditctl -l | grep postqueue -a always,exit -F path=/usr/bin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postqueue Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-85944-7: Record Any Attempts to Run ssh-agent | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-agent" command with the following command: $ sudo auditctl -l | grep ssh-agent -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80735-4: Ensure auditd Collects Information on the Use of Privileged Commands - ssh-keysign | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-keysign" command with the following command: $ sudo auditctl -l | grep ssh-keysign -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-keysign Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80736-2: Ensure auditd Collects Information on the Use of Privileged Commands - su | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "su" command with the following command: $ sudo auditctl -l | grep su -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -k privileged-su Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80737-0: Ensure auditd Collects Information on the Use of Privileged Commands - sudo | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "sudo" command with the following command: $ sudo auditctl -l | grep sudo -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80739-6: Ensure auditd Collects Information on the Use of Privileged Commands - umount | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "umount" command with the following command: $ sudo auditctl -l | grep umount -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-umount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80740-4: Ensure auditd Collects Information on the Use of Privileged Commands - unix_chkpwd | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_chkpwd" command with the following command: $ sudo auditctl -l | grep unix_chkpwd -a always,exit -F path=/usr/bin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_chkpwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-89480-8: Ensure auditd Collects Information on the Use of Privileged Commands - unix_update | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_update" command with the following command: $ sudo auditctl -l | grep unix_update -a always,exit -F path=/usr/bin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80741-2: Ensure auditd Collects Information on the Use of Privileged Commands - userhelper | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "userhelper" command with the following command: $ sudo auditctl -l | grep userhelper -a always,exit -F path=/usr/bin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -k privileged-userhelper Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-86027-0: Ensure auditd Collects Information on the Use of Privileged Commands - usermod | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "usermod" command with the following command: $ sudo auditctl -l | grep usermod -a always,exit -F path=/usr/bin/usermod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-usermod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-82233-8: Include Local Events in Audit Logs | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To configure Audit daemon to include local events in Audit logs, set local_events to yes in /etc/audit/auditd.conf. This is the default setting. | Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To verify that Audit Daemon is configured to include local events, run the
following command:
$ sudo grep local_events /etc/audit/auditd.confThe output should return the following: local_events = yesIs it the case that local_events isn't set to yes? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To configure Audit daemon to include local events in Audit logs, set local_events to yes in /etc/audit/auditd.conf. This is the default setting. | medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-82168-6: Log USBGuard daemon audit events using Linux Audit | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To configure USBGuard daemon to log via Linux Audit (as opposed directly to a file), AuditBackend option in /etc/usbguard/usbguard-daemon.conf needs to be set to LinuxAudit. | Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | To verify that Linux Audit logging is enabled for the USBGuard daemon,
run the following command:
$ sudo grep AuditBackend /etc/usbguard/usbguard-daemon.confThe output should be AuditBackend=LinuxAuditIs it the case that AuditBackend is not set to LinuxAudit? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To configure USBGuard daemon to log via Linux Audit (as opposed directly to a file), AuditBackend option in /etc/usbguard/usbguard-daemon.conf needs to be set to LinuxAudit. | low | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80825-3: Enable Auditing for Processes Which Start Prior to the Audit Daemon | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit=1'The command should not return any output. Is it the case that auditing is not enabled at boot time? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
low | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80943-4: Extend Audit Backlog Limit for the Audit Daemon | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit_backlog_limit=8192,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit_backlog_limit=8192.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit_backlog_limit=8192.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit_backlog_limit=8192'The command should not return any output. Is it the case that audit backlog limit is not configured? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
low | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | The audit package should be installed. | medium | |||
| CCI-000169 | SRG-OS-000062-GPOS-00031 | TBD - Assigned by DISA after STIG release | The operating system must provide audit record generation capability for DoD-defined auditable events for all operating system components. | CCE-80872-5: Enable auditd Service | Without the capability to generate audit records, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). The list of audited events is the set of events for which audits are to be generated. This set of events is typically a subset of the list of all events for which the system is capable of generating audit records. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to provide audit record generation capability for DoD-defined auditable events for all operating system components. DoD has defined the list of events for which the operating system will provide an audit record generation capability as the following: 1) Successful and unsuccessful attempts to access, modify, or delete privileges, security objects, security levels, or categories of information (e.g., classification levels); 2) Access actions, such as successful and unsuccessful logon attempts, privileged activities or other system-level access, starting and ending time for user access to the system, concurrent logons from different workstations, successful and unsuccessful accesses to objects, all program initiations, and all direct access to the information system; 3) All account creations, modifications, disabling, and terminations; and 4) All kernel module load, unload, and restart actions. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000171 | SRG-OS-000063-GPOS-00032 | TBD - Assigned by DISA after STIG release | The operating system must allow only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited. | CCE-85871-2: Verify Permissions on /etc/audit/auditd.conf | Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured audits may degrade the system's performance by overwhelming the audit log. Misconfigured audits may also make it more difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. |
To properly set the permissions of /etc/audit/auditd.conf, run the command:
$ sudo chmod 0640 /etc/audit/auditd.conf |
Applicable - Configurable | Verify the operating system allows only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited. If it does not, this is a finding. | To check the permissions of /etc/audit/auditd.conf,
run the command:
$ ls -l /etc/audit/auditd.confIf properly configured, the output should indicate the following permissions: -rw-r----- Is it the case that /etc/audit/auditd.conf does not have unix mode -rw-r-----? |
Configure the operating system to allow only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited. |
To properly set the permissions of /etc/audit/auditd.conf, run the command:
$ sudo chmod 0640 /etc/audit/auditd.conf |
medium | |||
| CCI-000171 | SRG-OS-000063-GPOS-00032 | TBD - Assigned by DISA after STIG release | The operating system must allow only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited. | CCE-85875-3: Verify Permissions on /etc/audit/rules.d/*.rules | Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured audits may degrade the system's performance by overwhelming the audit log. Misconfigured audits may also make it more difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. |
To properly set the permissions of /etc/audit/rules.d/*.rules, run the command:
$ sudo chmod 0640 /etc/audit/rules.d/*.rules |
Applicable - Configurable | Verify the operating system allows only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited. If it does not, this is a finding. | To check the permissions of /etc/audit/rules.d/*.rules,
run the command:
$ ls -l /etc/audit/rules.d/*.rulesIf properly configured, the output should indicate the following permissions: -rw-r----- Is it the case that /etc/audit/rules.d/*.rules does not have unix mode -rw-r-----? |
Configure the operating system to allow only the ISSM (or individuals or roles appointed by the ISSM) to select which auditable events are to be audited. |
To properly set the permissions of /etc/audit/rules.d/*.rules, run the command:
$ sudo chmod 0640 /etc/audit/rules.d/*.rules |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-89480-8: Ensure auditd Collects Information on the Use of Privileged Commands - unix_update | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_update" command with the following command: $ sudo auditctl -l | grep unix_update -a always,exit -F path=/usr/bin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000064-GPOS-00033 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access privileges occur. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000185 | SRG-OS-000066-GPOS-00034 | TBD - Assigned by DISA after STIG release | The operating system, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor. | CCE-86312-6: SSSD Has a Correct Trust Anchor | Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate not already explicitly trusted. A trust anchor is an authoritative entity represented via a public key and associated data. It is used in the context of public key infrastructures, X.509 digital certificates, and DNSSEC. When there is a chain of trust, usually the top entity to be trusted becomes the trust anchor; it can be, for example, a Certification Authority (CA). A certification path starts with the subject certificate and proceeds through a number of intermediate certificates up to a trusted root certificate, typically issued by a trusted CA. This requirement verifies that a certification path to an accepted trust anchor is used for certificate validation and that the path includes status information. Path validation is necessary for a relying party to make an informed trust decision when presented with any certificate not already explicitly trusted. Status information for certification paths includes certificate revocation lists or online certificate status protocol responses. Validation of the certificate status information is out of scope for this requirement. | SSSD must have acceptable trust anchor present. | Applicable - Configurable | Verify the operating system, for PKI-based authentication, validates certificates by constructing a certification path (which includes status information) to an accepted trust anchor. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 for PKI-based authentication has valid certificates by constructing a certification path (which includes status information) to an accepted trust anchor. Check that the system has a valid DoD root CA installed with the following command: $ sudo openssl x509 -text -in /etc/sssd/pki/sssd_auth_ca_db.pem Certificate: Data: Version: 3 (0x2) Serial Number: 1 (0x1) Signature Algorithm: sha256WithRSAEncryption Issuer: C = US, O = U.S. Government, OU = DoD, OU = PKI, CN = DoD Root CA 3 Validity Not Before: Mar 20 18:46:41 2012 GMT Not After : Dec 30 18:46:41 2029 GMT Subject: C = US, O = U.S. Government, OU = DoD, OU = PKI, CN = DoD Root CA 3 Subject Public Key Info: Public Key Algorithm: rsaEncryption Is it the case that root CA file is not a DoD-issued certificate with a valid date and installed in the /etc/sssd/pki/sssd_auth_ca_db.pem location? | Configure the operating system, for PKI-based authentication, to validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor. | SSSD must have acceptable trust anchor present. | medium | |||
| CCI-000186 | SRG-OS-000067-GPOS-00035 | TBD - Assigned by DISA after STIG release | The operating system, for PKI-based authentication, must enforce authorized access to the corresponding private key. | CCE-90781-6: Verify the SSH Private Key Files Have a Passcode | If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the network infrastructure. The cornerstone of the PKI is the private key used to encrypt or digitally sign information. If the private key is stolen, this will lead to the compromise of the authentication and non-repudiation gained through PKI because the attacker can use the private key to digitally sign documents and pretend to be the authorized user. Both the holders of a digital certificate and the issuing authority must protect the computers, storage devices, or whatever they use to keep the private keys. | When creating SSH key pairs, always use a passcode.
You can create such keys with the following command: $ sudo ssh-keygen -n [passphrase]Red Hat Enterprise Linux 8, for certificate-based authentication, must enforce authorized access to the corresponding private key. |
Applicable - Configurable | Verify the operating system, for PKI-based authentication, enforces authorized access to the corresponding private key. If it does not, this is a finding. | For each private key stored on the system, use the following command:
$ sudo ssh-keygen -y -f /path/to/fileIf the contents of the key are displayed, this is a finding. Is it the case that no ssh private key is accessible without a passcode? |
Configure the operating system, for PKI-based authentication, to enforce authorized access to the corresponding private key. | When creating SSH key pairs, always use a passcode.
You can create such keys with the following command: $ sudo ssh-keygen -n [passphrase]Red Hat Enterprise Linux 8, for certificate-based authentication, must enforce authorized access to the corresponding private key. |
medium | |||
| CCI-000187 | SRG-OS-000068-GPOS-00036 | TBD - Assigned by DISA after STIG release | The operating system must map the authenticated identity to the user or group account for PKI-based authentication. | CCE-86060-1: Enable Certmap in SSSD | Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the individual user or group will not be available for forensic analysis. | SSSD should be configured to verify the certificate of the user or group. To set this up
ensure that section like certmap/testing.test/rule_name is setup in
/etc/sssd/sssd.conf. For example
[certmap/testing.test/rule_name]
matchrule =<SAN>.*EDIPI@mil
maprule = (userCertificate;binary={cert!bin})
domains = testing.test
|
Applicable - Configurable | Verify the operating system maps the authenticated identity to the user or group account for PKI-based authentication. If it does not, this is a finding. | To verify Certmap is enabled in SSSD, run the following command:
$ sudo cat /etc/sssd/sssd.confIf configured properly, output should contain section like the following
[certmap/testing.test/rule_name]
matchrule =<SAN>.*EDIPI@mil
maprule = (userCertificate;binary={cert!bin})
domains = testing.test
Is it the case that Certmap is not configured in SSSD? |
Configure the operating system to map the authenticated identity to the user or group account for PKI-based authentication. | SSSD should be configured to verify the certificate of the user or group. To set this up
ensure that section like certmap/testing.test/rule_name is setup in
/etc/sssd/sssd.conf. For example
[certmap/testing.test/rule_name]
matchrule =<SAN>.*EDIPI@mil
maprule = (userCertificate;binary={cert!bin})
domains = testing.test
|
medium | |||
| CCI-004066 | SRG-OS-000069-GPOS-00037 | TBD - Assigned by DISA after STIG release | The operating system must enforce password complexity by requiring that at least one uppercase character be used. | CCE-85877-9: Ensure PAM password complexity module is enabled in password-auth | Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. | To enable PAM password complexity in password-auth file: Edit the password section in /etc/pam.d/password-auth to show password requisite pam_pwquality.so. | Applicable - Configurable | Verify the operating system enforces password complexity by requiring that at least one uppercase character be used. If it does not, this is a finding. | To check if pam_pwquality.so is enabled in password-auth, run the following command:
$ grep pam_pwquality /etc/pam.d/password-authThe output should be similar to the following: password requisite pam_pwquality.soIs it the case that pam_pwquality.so is not enabled in password-auth? |
Configure the operating system to enforce password complexity by requiring that at least one uppercase character be used. | To enable PAM password complexity in password-auth file: Edit the password section in /etc/pam.d/password-auth to show password requisite pam_pwquality.so. | medium | |||
| CCI-004066 | SRG-OS-000069-GPOS-00037 | TBD - Assigned by DISA after STIG release | The operating system must enforce password complexity by requiring that at least one uppercase character be used. | CCE-80664-6: Ensure PAM Enforces Password Requirements - Authentication Retry Prompts Permitted Per-Session | Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. | To configure the number of retry prompts that are permitted per-session: Edit the /etc/security/pwquality.conf to include retry=, or a lower value if site policy is more restrictive. The DoD requirement is a maximum of 3 prompts per session. | Applicable - Configurable | Verify the operating system enforces password complexity by requiring that at least one uppercase character be used. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is configured to limit the "pwquality" retry option to .
Check for the use of the "pwquality" retry option in the pwquality.conf file with the following command:
$ grep retry /etc/security/pwquality.confIs it the case that the value of "retry" is set to "0" or greater than "", or is missing? |
Configure the operating system to enforce password complexity by requiring that at least one uppercase character be used. | To configure the number of retry prompts that are permitted per-session: Edit the /etc/security/pwquality.conf to include retry=, or a lower value if site policy is more restrictive. The DoD requirement is a maximum of 3 prompts per session. | medium | |||
| CCI-004066 | SRG-OS-000069-GPOS-00037 | TBD - Assigned by DISA after STIG release | The operating system must enforce password complexity by requiring that at least one uppercase character be used. | CCE-80665-3: Ensure PAM Enforces Password Requirements - Minimum Uppercase Characters | Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. | The pam_pwquality module's ucredit= parameter controls requirements for usage of uppercase letters in a password. When set to a negative number, any password will be required to contain that many uppercase characters. When set to a positive number, pam_pwquality will grant +1 additional length credit for each uppercase character. Modify the ucredit setting in /etc/security/pwquality.conf to require the use of an uppercase character in passwords. | Applicable - Configurable | Verify the operating system enforces password complexity by requiring that at least one uppercase character be used. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 enforces password complexity by requiring that at least one upper-case character. Check the value for "ucredit" with the following command: $ sudo grep ucredit /etc/security/pwquality.conf /etc/security/pwquality.conf.d/*.conf ucredit = -1 Is it the case that the value of "ucredit" is a positive number or is commented out? | Configure the operating system to enforce password complexity by requiring that at least one uppercase character be used. | The pam_pwquality module's ucredit= parameter controls requirements for usage of uppercase letters in a password. When set to a negative number, any password will be required to contain that many uppercase characters. When set to a positive number, pam_pwquality will grant +1 additional length credit for each uppercase character. Modify the ucredit setting in /etc/security/pwquality.conf to require the use of an uppercase character in passwords. | medium | |||
| CCI-004066 | SRG-OS-000070-GPOS-00038 | TBD - Assigned by DISA after STIG release | The operating system must enforce password complexity by requiring that at least one lowercase character be used. | CCE-80655-4: Ensure PAM Enforces Password Requirements - Minimum Lowercase Characters | Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. | The pam_pwquality module's lcredit parameter controls requirements for usage of lowercase letters in a password. When set to a negative number, any password will be required to contain that many lowercase characters. When set to a positive number, pam_pwquality will grant +1 additional length credit for each lowercase character. Modify the lcredit setting in /etc/security/pwquality.conf to require the use of a lowercase character in passwords. | Applicable - Configurable | Verify the operating system enforces password complexity by requiring that at least one lowercase character be used. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 enforces password complexity by requiring that at least one lower-case character.
Check the value for "lcredit" with the following command:
$ sudo grep lcredit /etc/security/pwquality.conf /etc/security/pwquality.conf.d/*.conf /etc/security/pwquality.conf:lcredit = -1Is it the case that the value of "lcredit" is a positive number or is commented out? |
Configure the operating system to enforce password complexity by requiring that at least one lowercase character be used. | The pam_pwquality module's lcredit parameter controls requirements for usage of lowercase letters in a password. When set to a negative number, any password will be required to contain that many lowercase characters. When set to a positive number, pam_pwquality will grant +1 additional length credit for each lowercase character. Modify the lcredit setting in /etc/security/pwquality.conf to require the use of a lowercase character in passwords. | medium | |||
| CCI-004066 | SRG-OS-000070-GPOS-00038 | TBD - Assigned by DISA after STIG release | The operating system must enforce password complexity by requiring that at least one lowercase character be used. | CCE-85877-9: Ensure PAM password complexity module is enabled in password-auth | Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. | To enable PAM password complexity in password-auth file: Edit the password section in /etc/pam.d/password-auth to show password requisite pam_pwquality.so. | Applicable - Configurable | Verify the operating system enforces password complexity by requiring that at least one lowercase character be used. If it does not, this is a finding. | To check if pam_pwquality.so is enabled in password-auth, run the following command:
$ grep pam_pwquality /etc/pam.d/password-authThe output should be similar to the following: password requisite pam_pwquality.soIs it the case that pam_pwquality.so is not enabled in password-auth? |
Configure the operating system to enforce password complexity by requiring that at least one lowercase character be used. | To enable PAM password complexity in password-auth file: Edit the password section in /etc/pam.d/password-auth to show password requisite pam_pwquality.so. | medium | |||
| CCI-004066 | SRG-OS-000070-GPOS-00038 | TBD - Assigned by DISA after STIG release | The operating system must enforce password complexity by requiring that at least one lowercase character be used. | CCE-80665-3: Ensure PAM Enforces Password Requirements - Minimum Uppercase Characters | Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. | The pam_pwquality module's ucredit= parameter controls requirements for usage of uppercase letters in a password. When set to a negative number, any password will be required to contain that many uppercase characters. When set to a positive number, pam_pwquality will grant +1 additional length credit for each uppercase character. Modify the ucredit setting in /etc/security/pwquality.conf to require the use of an uppercase character in passwords. | Applicable - Configurable | Verify the operating system enforces password complexity by requiring that at least one lowercase character be used. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 enforces password complexity by requiring that at least one upper-case character. Check the value for "ucredit" with the following command: $ sudo grep ucredit /etc/security/pwquality.conf /etc/security/pwquality.conf.d/*.conf ucredit = -1 Is it the case that the value of "ucredit" is a positive number or is commented out? | Configure the operating system to enforce password complexity by requiring that at least one lowercase character be used. | The pam_pwquality module's ucredit= parameter controls requirements for usage of uppercase letters in a password. When set to a negative number, any password will be required to contain that many uppercase characters. When set to a positive number, pam_pwquality will grant +1 additional length credit for each uppercase character. Modify the ucredit setting in /etc/security/pwquality.conf to require the use of an uppercase character in passwords. | medium | |||
| CCI-004066 | SRG-OS-000071-GPOS-00039 | TBD - Assigned by DISA after STIG release | The operating system must enforce password complexity by requiring that at least one numeric character be used. | CCE-80653-9: Ensure PAM Enforces Password Requirements - Minimum Digit Characters | Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor of several that determines how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. | The pam_pwquality module's dcredit parameter controls requirements for usage of digits in a password. When set to a negative number, any password will be required to contain that many digits. When set to a positive number, pam_pwquality will grant +1 additional length credit for each digit. Modify the dcredit setting in /etc/security/pwquality.conf to require the use of a digit in passwords. | Applicable - Configurable | Verify the operating system enforces password complexity by requiring that at least one numeric character be used. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 enforces password complexity by requiring that at least one numeric character be used.
Check the value for "dcredit" with the following command:
$ sudo grep dcredit /etc/security/pwquality.conf /etc/security/pwquality.conf.d/*.conf /etc/security/pwquality.conf:dcredit =Is it the case that the value of "dcredit" is a positive number or is commented out? |
Configure the operating system to enforce password complexity by requiring that at least one numeric character be used. | The pam_pwquality module's dcredit parameter controls requirements for usage of digits in a password. When set to a negative number, any password will be required to contain that many digits. When set to a positive number, pam_pwquality will grant +1 additional length credit for each digit. Modify the dcredit setting in /etc/security/pwquality.conf to require the use of a digit in passwords. | medium | |||
| CCI-004066 | SRG-OS-000072-GPOS-00040 | TBD - Assigned by DISA after STIG release | The operating system must require the change of at least 50 percent of the total number of characters when passwords are changed. | CCE-86233-4: Ensure PAM Enforces Password Requirements - Prevent the Use of Dictionary Words | If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks. The number of changed characters refers to the number of changes required with respect to the total number of positions in the current password. In other words, characters may be the same within the two passwords; however, the positions of the like characters must be different. If the password length is an odd number then number of changed characters must be rounded up. For example, a password length of 15 characters must require the change of at least eight characters. | The pam_pwquality module's dictcheck check if passwords contains dictionary words. When dictcheck is set to 1 passwords will be checked for dictionary words. | Applicable - Configurable | Verify the operating system requires the change of at least eight of the total number of characters when passwords are changed. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 prevents the use of dictionary words for passwords with the following command:
$ sudo grep dictcheck /etc/security/pwquality.conf /etc/pwquality.conf.d/*.conf /etc/security/pwquality.conf:dictcheck=1Is it the case that "dictcheck" does not have a value other than "0", or is commented out? |
Configure the operating system to require the change of at least eight of the total number of characters when passwords are changed. | The pam_pwquality module's dictcheck check if passwords contains dictionary words. When dictcheck is set to 1 passwords will be checked for dictionary words. | medium | |||
| CCI-004066 | SRG-OS-000072-GPOS-00040 | TBD - Assigned by DISA after STIG release | The operating system must require the change of at least 50 percent of the total number of characters when passwords are changed. | CCE-80654-7: Ensure PAM Enforces Password Requirements - Minimum Different Characters | If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks. The number of changed characters refers to the number of changes required with respect to the total number of positions in the current password. In other words, characters may be the same within the two passwords; however, the positions of the like characters must be different. If the password length is an odd number then number of changed characters must be rounded up. For example, a password length of 15 characters must require the change of at least eight characters. | The pam_pwquality module's difok parameter sets the number of characters
in a password that must not be present in and old password during a password change.
Modify the difok setting in /etc/security/pwquality.conf to equal to require differing characters when changing passwords. |
Applicable - Configurable | Verify the operating system requires the change of at least eight of the total number of characters when passwords are changed. If it does not, this is a finding. | Verify the value of the "difok" option in "/etc/security/pwquality.conf" with the following command:
$ sudo grep difok /etc/security/pwquality.conf difok =Is it the case that the value of "difok" is set to less than "", or is commented out? |
Configure the operating system to require the change of at least eight of the total number of characters when passwords are changed. | The pam_pwquality module's difok parameter sets the number of characters
in a password that must not be present in and old password during a password change.
Modify the difok setting in /etc/security/pwquality.conf to equal to require differing characters when changing passwords. |
medium | |||
| CCI-004066 | SRG-OS-000072-GPOS-00040 | TBD - Assigned by DISA after STIG release | The operating system must require the change of at least 50 percent of the total number of characters when passwords are changed. | CCE-81034-1: Ensure PAM Enforces Password Requirements - Maximum Consecutive Repeating Characters from Same Character Class | If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks. The number of changed characters refers to the number of changes required with respect to the total number of positions in the current password. In other words, characters may be the same within the two passwords; however, the positions of the like characters must be different. If the password length is an odd number then number of changed characters must be rounded up. For example, a password length of 15 characters must require the change of at least eight characters. | The pam_pwquality module's maxclassrepeat parameter controls requirements for consecutive repeating characters from the same character class. When set to a positive number, it will reject passwords which contain more than that number of consecutive characters from the same character class. Modify the maxclassrepeat setting in /etc/security/pwquality.conf to equal to prevent a run of ( + 1) or more identical characters. | Applicable - Configurable | Verify the operating system requires the change of at least eight of the total number of characters when passwords are changed. If it does not, this is a finding. | Verify the value of the "maxclassrepeat" option in "/etc/security/pwquality.conf" with the following command:
$ grep maxclassrepeat /etc/security/pwquality.conf maxclassrepeat =Is it the case that the value of "maxclassrepeat" is set to "0", more than "" or is commented out? |
Configure the operating system to require the change of at least eight of the total number of characters when passwords are changed. | The pam_pwquality module's maxclassrepeat parameter controls requirements for consecutive repeating characters from the same character class. When set to a positive number, it will reject passwords which contain more than that number of consecutive characters from the same character class. Modify the maxclassrepeat setting in /etc/security/pwquality.conf to equal to prevent a run of ( + 1) or more identical characters. | medium | |||
| CCI-004066 | SRG-OS-000072-GPOS-00040 | TBD - Assigned by DISA after STIG release | The operating system must require the change of at least 50 percent of the total number of characters when passwords are changed. | CCE-82066-2: Set Password Maximum Consecutive Repeating Characters | If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks. The number of changed characters refers to the number of changes required with respect to the total number of positions in the current password. In other words, characters may be the same within the two passwords; however, the positions of the like characters must be different. If the password length is an odd number then number of changed characters must be rounded up. For example, a password length of 15 characters must require the change of at least eight characters. | The pam_pwquality module's maxrepeat parameter controls requirements for consecutive repeating characters. When set to a positive number, it will reject passwords which contain more than that number of consecutive characters. Modify the maxrepeat setting in /etc/security/pwquality.conf to equal to prevent a run of ( + 1) or more identical characters. | Applicable - Configurable | Verify the operating system requires the change of at least eight of the total number of characters when passwords are changed. If it does not, this is a finding. | Verify the value of the "maxrepeat" option in "/etc/security/pwquality.conf" with the following command:
$ grep maxrepeat /etc/security/pwquality.conf maxrepeat =Is it the case that the value of "maxrepeat" is set to more than "" or is commented out? |
Configure the operating system to require the change of at least eight of the total number of characters when passwords are changed. | The pam_pwquality module's maxrepeat parameter controls requirements for consecutive repeating characters. When set to a positive number, it will reject passwords which contain more than that number of consecutive characters. Modify the maxrepeat setting in /etc/security/pwquality.conf to equal to prevent a run of ( + 1) or more identical characters. | medium | |||
| CCI-004066 | SRG-OS-000072-GPOS-00040 | TBD - Assigned by DISA after STIG release | The operating system must require the change of at least 50 percent of the total number of characters when passwords are changed. | CCE-82046-4: Ensure PAM Enforces Password Requirements - Minimum Different Categories | If the operating system allows the user to consecutively reuse extensive portions of passwords, this increases the chances of password compromise by increasing the window of opportunity for attempts at guessing and brute-force attacks. The number of changed characters refers to the number of changes required with respect to the total number of positions in the current password. In other words, characters may be the same within the two passwords; however, the positions of the like characters must be different. If the password length is an odd number then number of changed characters must be rounded up. For example, a password length of 15 characters must require the change of at least eight characters. | The pam_pwquality module's minclass parameter controls
requirements for usage of different character classes, or types, of character
that must exist in a password before it is considered valid. For example,
setting this value to three (3) requires that any password must have characters
from at least three different categories in order to be approved. The default
value is zero (0), meaning there are no required classes. There are four
categories available:
* Upper-case characters * Lower-case characters * Digits * Special characters (for example, punctuation)Modify the minclass setting in /etc/security/pwquality.conf entry to require differing categories of characters when changing passwords. |
Applicable - Configurable | Verify the operating system requires the change of at least eight of the total number of characters when passwords are changed. If it does not, this is a finding. | Verify the value of the "minclass" option in "/etc/security/pwquality.conf" with the following command:
$ grep minclass /etc/security/pwquality.conf minclass =Is it the case that the value of "minclass" is set to less than "" or is commented out? |
Configure the operating system to require the change of at least eight of the total number of characters when passwords are changed. | The pam_pwquality module's minclass parameter controls
requirements for usage of different character classes, or types, of character
that must exist in a password before it is considered valid. For example,
setting this value to three (3) requires that any password must have characters
from at least three different categories in order to be approved. The default
value is zero (0), meaning there are no required classes. There are four
categories available:
* Upper-case characters * Lower-case characters * Digits * Special characters (for example, punctuation)Modify the minclass setting in /etc/security/pwquality.conf entry to require differing categories of characters when changing passwords. |
medium | |||
| CCI-004062 | SRG-OS-000073-GPOS-00041 | TBD - Assigned by DISA after STIG release | The operating system must store only encrypted representations of passwords. | CCE-83484-6: Verify All Account Password Hashes are Shadowed with SHA512 | Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. | Verify the operating system requires the shadow password suite
configuration be set to encrypt interactive user passwords using a strong
cryptographic hash.
Check that the interactive user account passwords are using a strong
password hash with the following command:
$ sudo cut -d: -f2 /etc/shadow $6$kcOnRq/5$NUEYPuyL.wghQwWssXRcLRFiiru7f5JPV6GaJhNC2aK5F3PZpE/BCCtwrxRc/AInKMNX3CdMw11m9STiql12f/Password hashes ! or * indicate inactive accounts not available for logon and are not evaluated. If any interactive user password hash does not begin with $6, this is a finding. |
Applicable - Configurable | Verify the operating system stores only encrypted representations of passwords. If it does not, this is a finding. | Verify that the interactive user account passwords are using a strong
password hash with the following command:
$ sudo cut -d: -f2 /etc/shadow $6$kcOnRq/5$NUEYPuyL.wghQwWssXRcLRFiiru7f5JPV6GaJhNC2aK5F3PZpE/BCCtwrxRc/AInKMNX3CdMw11m9STiql12f/Password hashes ! or * indicate inactive accounts not available for logon and are not evaluated. Is it the case that any interactive user password hash does not begin with "$6"? |
Configure the operating system to store only encrypted representations of passwords. | Verify the operating system requires the shadow password suite
configuration be set to encrypt interactive user passwords using a strong
cryptographic hash.
Check that the interactive user account passwords are using a strong
password hash with the following command:
$ sudo cut -d: -f2 /etc/shadow $6$kcOnRq/5$NUEYPuyL.wghQwWssXRcLRFiiru7f5JPV6GaJhNC2aK5F3PZpE/BCCtwrxRc/AInKMNX3CdMw11m9STiql12f/Password hashes ! or * indicate inactive accounts not available for logon and are not evaluated. If any interactive user password hash does not begin with $6, this is a finding. |
medium | |||
| CCI-004062 | SRG-OS-000073-GPOS-00041 | TBD - Assigned by DISA after STIG release | The operating system must store only encrypted representations of passwords. | CCE-80892-3: Set Password Hashing Algorithm in /etc/login.defs | Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. | In /etc/login.defs, add or update the following line to ensure the system will use
as the hashing algorithm:
ENCRYPT_METHOD |
Applicable - Configurable | Verify the operating system stores only encrypted representations of passwords. If it does not, this is a finding. | Verify that the shadow password suite configuration is set to encrypt password with a FIPS 140-2 approved cryptographic hashing algorithm. Check the hashing algorithm that is being used to hash passwords with the following command: $ sudo grep -i ENCRYPT_METHOD /etc/login.defs ENCRYPT_METHOD Is it the case that ENCRYPT_METHOD is not set to ? | Configure the operating system to store only encrypted representations of passwords. | In /etc/login.defs, add or update the following line to ensure the system will use
as the hashing algorithm:
ENCRYPT_METHOD |
medium | |||
| CCI-004062 | SRG-OS-000073-GPOS-00041 | TBD - Assigned by DISA after STIG release | The operating system must store only encrypted representations of passwords. | CCE-85945-4: Set PAM''s Password Hashing Algorithm - password-auth | Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. | The PAM system service can be configured to only store encrypted representations of passwords.
In /etc/pam.d/password-auth, the password section of the file controls which
PAM modules to execute during a password change.
Set the pam_unix.so module in the password section to include the option
and no other hashing
algorithms as shown below:
password sufficient pam_unix.so other arguments... This will help ensure that new passwords for local users will be stored using the algorithm. |
Applicable - Configurable | Verify the operating system stores only encrypted representations of passwords. If it does not, this is a finding. | Inspect the password section of /etc/pam.d/password-auth
and ensure that the pam_unix.so module is configured to use the argument
:
$ grep /etc/pam.d/password-authIs it the case that it does not? |
Configure the operating system to store only encrypted representations of passwords. | The PAM system service can be configured to only store encrypted representations of passwords.
In /etc/pam.d/password-auth, the password section of the file controls which
PAM modules to execute during a password change.
Set the pam_unix.so module in the password section to include the option
and no other hashing
algorithms as shown below:
password sufficient pam_unix.so other arguments... This will help ensure that new passwords for local users will be stored using the algorithm. |
medium | |||
| CCI-004062 | SRG-OS-000073-GPOS-00041 | TBD - Assigned by DISA after STIG release | The operating system must store only encrypted representations of passwords. | CCE-80893-1: Set PAM''s Password Hashing Algorithm | Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. | The PAM system service can be configured to only store encrypted representations of passwords.
In "/etc/pam.d/system-auth", the password section of the file controls which
PAM modules to execute during a password change.
Set the pam_unix.so module in the password section to include the option
and no other hashing
algorithms as shown below:
password sufficient pam_unix.so other arguments... This will help ensure that new passwords for local users will be stored using the algorithm. |
Applicable - Configurable | Verify the operating system stores only encrypted representations of passwords. If it does not, this is a finding. | Inspect the password section of /etc/pam.d/system-auth
and ensure that the pam_unix.so module is configured to use the argument
:
$ sudo grep "^password.*pam_unix\.so.*" /etc/pam.d/system-auth password sufficient pam_unix.soIs it the case that "" is missing, or is commented out? |
Configure the operating system to store only encrypted representations of passwords. | The PAM system service can be configured to only store encrypted representations of passwords.
In "/etc/pam.d/system-auth", the password section of the file controls which
PAM modules to execute during a password change.
Set the pam_unix.so module in the password section to include the option
and no other hashing
algorithms as shown below:
password sufficient pam_unix.so other arguments... This will help ensure that new passwords for local users will be stored using the algorithm. |
medium | |||
| CCI-004062 | SRG-OS-000073-GPOS-00041 | TBD - Assigned by DISA after STIG release | The operating system must store only encrypted representations of passwords. | CCE-89707-4: Set Password Hashing Rounds in /etc/login.defs | Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. | In /etc/login.defs, ensure SHA_CRYPT_MIN_ROUNDS and
SHA_CRYPT_MAX_ROUNDS has the minimum value of 5000.
For example:
SHA_CRYPT_MIN_ROUNDS 5000 SHA_CRYPT_MAX_ROUNDS 5000Notice that if neither are set, they already have the default value of 5000. If either is set, they must have the minimum value of 5000. |
Applicable - Configurable | Verify the operating system stores only encrypted representations of passwords. If it does not, this is a finding. | Inspect /etc/login.defs and ensure that if eihter SHA_CRYPT_MIN_ROUNDS or SHA_CRYPT_MAX_ROUNDS are set, they must have the minimum value of 5000. Is it the case that it does not? | Configure the operating system to store only encrypted representations of passwords. | In /etc/login.defs, ensure SHA_CRYPT_MIN_ROUNDS and
SHA_CRYPT_MAX_ROUNDS has the minimum value of 5000.
For example:
SHA_CRYPT_MIN_ROUNDS 5000 SHA_CRYPT_MAX_ROUNDS 5000Notice that if neither are set, they already have the default value of 5000. If either is set, they must have the minimum value of 5000. |
medium | |||
| CCI-000197 | SRG-OS-000074-GPOS-00042 | TBD - Assigned by DISA after STIG release | The operating system must transmit only encrypted representations of passwords. | CCE-82414-4: Uninstall vsftpd Package | Passwords need to be protected at all times, and encryption is the standard method for protecting passwords. If passwords are not encrypted, they can be plainly read (i.e., clear text) and easily compromised. | The vsftpd package can be removed with the following command: $ sudo yum erase vsftpd |
Applicable - Configurable | Verify the operating system transmits only encrypted representations of passwords. If it does not, this is a finding. | Run the following command to determine if the vsftpd package is installed:
$ rpm -q vsftpdIs it the case that the package is installed? |
Configure the operating system to transmit only encrypted representations of passwords. | The vsftpd package can be removed with the following command: $ sudo yum erase vsftpd |
high | |||
| CCI-004066 | SRG-OS-000075-GPOS-00043 | TBD - Assigned by DISA after STIG release | Operating systems must enforce 24 hours/1 day as the minimum password lifetime. | CCE-80648-9: Set Password Minimum Age | Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, then the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse. | To specify password minimum age for new accounts,
edit the file /etc/login.defs
and add or correct the following line:
PASS_MIN_DAYSA value of 1 day is considered sufficient for many environments. The DoD requirement is 1. The profile requirement is . |
Applicable - Configurable | Verify operating system enforces 24 hours/1 day as the minimum password lifetime. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 enforces 24 hours/one day as the minimum password lifetime for new user accounts.
Check for the value of "PASS_MIN_DAYS" in "/etc/login.defs" with the following command:
$ grep -i pass_min_days /etc/login.defs PASS_MIN_DAYSIs it the case that the "PASS_MIN_DAYS" parameter value is not "" or greater, or is commented out? |
Configure operating system to enforce 24 hours/1 day as the minimum password lifetime. | To specify password minimum age for new accounts,
edit the file /etc/login.defs
and add or correct the following line:
PASS_MIN_DAYSA value of 1 day is considered sufficient for many environments. The DoD requirement is 1. The profile requirement is . |
medium | |||
| CCI-004066 | SRG-OS-000075-GPOS-00043 | TBD - Assigned by DISA after STIG release | Operating systems must enforce 24 hours/1 day as the minimum password lifetime. | CCE-82472-2: Set Existing Passwords Minimum Age | Enforcing a minimum password lifetime helps to prevent repeated password changes to defeat the password reuse or history enforcement requirement. If users are allowed to immediately and continually change their password, then the password could be repeatedly changed in a short period of time to defeat the organization's policy regarding password reuse. | Configure non-compliant accounts to enforce a 24 hours/1 day minimum password
lifetime by running the following command:
$ sudo chage -m 1 USER |
Applicable - Configurable | Verify operating system enforces 24 hours/1 day as the minimum password lifetime. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 has configured the minimum time period between password changes for each user account is one day or greater with the following command: $ sudo awk -F: '$4 < 1 {print $1 " " $4}' /etc/shadow Is it the case that any results are returned that are not associated with a system account? | Configure operating system to enforce 24 hours/1 day as the minimum password lifetime. | Configure non-compliant accounts to enforce a 24 hours/1 day minimum password
lifetime by running the following command:
$ sudo chage -m 1 USER |
medium | |||
| CCI-004066 | SRG-OS-000076-GPOS-00044 | TBD - Assigned by DISA after STIG release | Operating systems must enforce a 60-day maximum password lifetime restriction. | CCE-80647-1: Set Password Maximum Age | Any password, no matter how complex, can eventually be cracked; therefore, passwords need to be changed periodically. If the operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that the operating system passwords could be compromised. | To specify password maximum age for new accounts,
edit the file /etc/login.defs
and add or correct the following line:
PASS_MAX_DAYSA value of 180 days is sufficient for many environments. The DoD requirement is 60. The profile requirement is . |
Applicable - Configurable | Verify operating system enforces a 60-day maximum password lifetime restriction. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 enforces a -day maximum password lifetime for new user accounts by running the following command:
$ grep -i pass_max_days /etc/login.defs PASS_MAX_DAYSIs it the case that the "PASS_MAX_DAYS" parameter value is greater than "", or commented out? |
Configure operating system to enforce a 60-day maximum password lifetime restriction. | To specify password maximum age for new accounts,
edit the file /etc/login.defs
and add or correct the following line:
PASS_MAX_DAYSA value of 180 days is sufficient for many environments. The DoD requirement is 60. The profile requirement is . |
medium | |||
| CCI-004066 | SRG-OS-000076-GPOS-00044 | TBD - Assigned by DISA after STIG release | Operating systems must enforce a 60-day maximum password lifetime restriction. | CCE-82473-0: Set Existing Passwords Maximum Age | Any password, no matter how complex, can eventually be cracked; therefore, passwords need to be changed periodically. If the operating system does not limit the lifetime of passwords and force users to change their passwords, there is the risk that the operating system passwords could be compromised. | Configure non-compliant accounts to enforce a -day maximum password lifetime
restriction by running the following command:
$ sudo chage -M USER |
Applicable - Configurable | Verify operating system enforces a 60-day maximum password lifetime restriction. If it does not, this is a finding. | Check whether the maximum time period for existing passwords is restricted to days with the following commands: $ sudo awk -F: '$5 > 60 {print $1 " " $5}' /etc/shadow $ sudo awk -F: '$5 <= 0 {print $1 " " $5}' /etc/shadow Is it the case that any results are returned that are not associated with a system account? | Configure operating system to enforce a 60-day maximum password lifetime restriction. | Configure non-compliant accounts to enforce a -day maximum password lifetime
restriction by running the following command:
$ sudo chage -M USER |
medium | |||
| CCI-004066 | SRG-OS-000078-GPOS-00046 | TBD - Assigned by DISA after STIG release | The operating system must enforce a minimum 15-character password length. | CCE-80652-1: Set Password Minimum Length in login.defs | The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to determine strength and how long it takes to crack a password. Use of more characters in a password helps to exponentially increase the time and/or resources required to compromise the password. | To specify password length requirements for new accounts, edit the file
/etc/login.defs and add or correct the following line:
PASS_MIN_LEN The DoD requirement is 15. The FISMA requirement is 12. The profile requirement is . If a program consults /etc/login.defs and also another PAM module (such as pam_pwquality) during a password change operation, then the most restrictive must be satisfied. See PAM section for more information about enforcing password quality requirements. |
Applicable - Configurable | Verify the operating system enforces a minimum 15-character password length. If it does not, this is a finding. | To check the minimum password length, run the command:
$ grep PASS_MIN_LEN /etc/login.defsThe DoD requirement is 15. Is it the case that it is not set to the required value? |
Configure the operating system to enforce a minimum 15-character password length. | To specify password length requirements for new accounts, edit the file
/etc/login.defs and add or correct the following line:
PASS_MIN_LEN The DoD requirement is 15. The FISMA requirement is 12. The profile requirement is . If a program consults /etc/login.defs and also another PAM module (such as pam_pwquality) during a password change operation, then the most restrictive must be satisfied. See PAM section for more information about enforcing password quality requirements. |
medium | |||
| CCI-004066 | SRG-OS-000078-GPOS-00046 | TBD - Assigned by DISA after STIG release | The operating system must enforce a minimum 15-character password length. | CCE-80656-2: Ensure PAM Enforces Password Requirements - Minimum Length | The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised. Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to determine strength and how long it takes to crack a password. Use of more characters in a password helps to exponentially increase the time and/or resources required to compromise the password. | The pam_pwquality module's minlen parameter controls requirements for minimum characters required in a password. Add minlen= after pam_pwquality to set minimum password length requirements. | Applicable - Configurable | Verify the operating system enforces a minimum 15-character password length. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 enforces a minimum -character password length with the following command:
$ grep minlen /etc/security/pwquality.conf minlen =Is it the case that the command does not return a "minlen" value of "" or greater, does not return a line, or the line is commented out? |
Configure the operating system to enforce a minimum 15-character password length. | The pam_pwquality module's minlen parameter controls requirements for minimum characters required in a password. Add minlen= after pam_pwquality to set minimum password length requirements. | medium | |||
| V-56745 | SRG-OS-000079-GPOS-00047 | TBD - Assigned by DISA after STIG release | The operating system must obscure feedback of authentication information during the authentication process to protect the information from possible exploitation/use by unauthorized individuals. | To prevent the compromise of authentication information, such as passwords during the authentication process, the feedback from the operating system shall not provide any information allowing an unauthorized user to compromise the authentication mechanism. Obfuscation of user-provided information that is typed into the system is a method used when addressing this risk. For example, displaying asterisks when a user types in a password is an example of obscuring feedback of authentication information. | |||||||||||
| CCI-000213 | SRG-OS-000080-GPOS-00048 | TBD - Assigned by DISA after STIG release | The operating system must enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | CCE-83561-1: Set the Boot Loader Admin Username to a Non-Default Value | To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be properly configured to incorporate access control methods that do not rely solely on the possession of a certificate for access. Successful authentication must not automatically give an entity access to an asset or security boundary. Authorization procedures and controls must be implemented to ensure each authenticated entity also has a validated and current authorization. Authorization is the process of determining whether an entity, once authenticated, is permitted to access a specific asset. Information systems use access control policies and enforcement mechanisms to implement this requirement. Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, and cryptography. These policies and mechanisms must be employed by the application to control access between users (or processes acting on behalf of users) and objects (e.g., devices, files, records, processes, programs, and domains) in the information system. | The grub2 boot loader should have a superuser account and password
protection enabled to protect boot-time settings.
To maximize the protection, select a password-protected superuser account with unique name, and modify the /etc/grub.d/01_users configuration file to reflect the account name change. Do not to use common administrator account names like root, admin, or administrator for the grub2 superuser account. Change the superuser to a different username (The default is 'root'). $ sed -i 's/\(set superusers=\).*/\1"<unique user ID>"/g' /etc/grub.d/01_users Once the superuser account has been added, update the grub.cfg file by running: grubby --update-kernel=ALL --env=/boot/grub2/grubenv |
Applicable - Configurable | Verify the operating system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies. If it does not, this is a finding. | To verify the boot loader superuser account has been set, run the following
command:
sudo grep -A1 "superusers" /boot/grub2/grub.cfgThe output should show the following: set superusers="superusers-account" export superuserswhere superusers-account is the actual account name different from common names like root, admin, or administrator and different from any other existing user name. Is it the case that superuser account is not set or is set to root, admin, administrator or any other existing user name? |
Configure the operating system to enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | The grub2 boot loader should have a superuser account and password
protection enabled to protect boot-time settings.
To maximize the protection, select a password-protected superuser account with unique name, and modify the /etc/grub.d/01_users configuration file to reflect the account name change. Do not to use common administrator account names like root, admin, or administrator for the grub2 superuser account. Change the superuser to a different username (The default is 'root'). $ sed -i 's/\(set superusers=\).*/\1"<unique user ID>"/g' /etc/grub.d/01_users Once the superuser account has been added, update the grub.cfg file by running: grubby --update-kernel=ALL --env=/boot/grub2/grubenv |
high | |||
| CCI-000213 | SRG-OS-000080-GPOS-00048 | TBD - Assigned by DISA after STIG release | The operating system must enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | CCE-80828-7: Set Boot Loader Password in grub2 | To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be properly configured to incorporate access control methods that do not rely solely on the possession of a certificate for access. Successful authentication must not automatically give an entity access to an asset or security boundary. Authorization procedures and controls must be implemented to ensure each authenticated entity also has a validated and current authorization. Authorization is the process of determining whether an entity, once authenticated, is permitted to access a specific asset. Information systems use access control policies and enforcement mechanisms to implement this requirement. Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, and cryptography. These policies and mechanisms must be employed by the application to control access between users (or processes acting on behalf of users) and objects (e.g., devices, files, records, processes, programs, and domains) in the information system. | The grub2 boot loader should have a superuser account and password
protection enabled to protect boot-time settings.
Since plaintext passwords are a security risk, generate a hash for the password by running the following command: # grub2-setpasswordWhen prompted, enter the password that was selected. |
Applicable - Configurable | Verify the operating system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies. If it does not, this is a finding. | First, check whether the password is defined in either /boot/grub2/user.cfg or
/boot/grub2/grub.cfg.
Run the following commands:
$ sudo grep '^[\s]*GRUB2_PASSWORD=grub\.pbkdf2\.sha512.*$' /boot/grub2/user.cfg $ sudo grep '^[\s]*password_pbkdf2[\s]+.*[\s]+grub\.pbkdf2\.sha512.*$' /boot/grub2/grub.cfgSecond, check that a superuser is defined in /boot/grub2/grub.cfg. $ sudo grep '^[\s]*set[\s]+superusers=("?)[a-zA-Z_]+\1$' /boot/grub2/grub.cfg Is it the case that it does not produce any output? |
Configure the operating system to enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | The grub2 boot loader should have a superuser account and password
protection enabled to protect boot-time settings.
Since plaintext passwords are a security risk, generate a hash for the password by running the following command: # grub2-setpasswordWhen prompted, enter the password that was selected. |
high | |||
| CCI-000213 | SRG-OS-000080-GPOS-00048 | TBD - Assigned by DISA after STIG release | The operating system must enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | CCE-83542-1: Set the UEFI Boot Loader Admin Username to a Non-Default Value | To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be properly configured to incorporate access control methods that do not rely solely on the possession of a certificate for access. Successful authentication must not automatically give an entity access to an asset or security boundary. Authorization procedures and controls must be implemented to ensure each authenticated entity also has a validated and current authorization. Authorization is the process of determining whether an entity, once authenticated, is permitted to access a specific asset. Information systems use access control policies and enforcement mechanisms to implement this requirement. Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, and cryptography. These policies and mechanisms must be employed by the application to control access between users (or processes acting on behalf of users) and objects (e.g., devices, files, records, processes, programs, and domains) in the information system. | The grub2 boot loader should have a superuser account and password
protection enabled to protect boot-time settings.
To maximize the protection, select a password-protected superuser account with unique name, and modify the /etc/grub.d/01_users configuration file to reflect the account name change. It is highly suggested not to use common administrator account names like root, admin, or administrator for the grub2 superuser account. Change the superuser to a different username (The default is 'root'). $ sed -i 's/\(set superusers=\).*/\1"<unique user ID>"/g' /etc/grub.d/01_users Once the superuser account has been added, update the grub.cfg file by running: grubby --update-kernel=ALL --env=/boot/grub2/grubenv |
Applicable - Configurable | Verify the operating system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies. If it does not, this is a finding. | To verify the boot loader superuser account has been set, run the following
command:
sudo grep -A1 "superusers" /boot/efi/EFI/redhat/grub.cfgThe output should show the following: set superusers="superusers-account" export superuserswhere superusers-account is the actual account name different from common names like root, admin, or administrator and different from any other existing user name. Is it the case that superuser account is not set or is set to an existing name or to a common name? |
Configure the operating system to enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | The grub2 boot loader should have a superuser account and password
protection enabled to protect boot-time settings.
To maximize the protection, select a password-protected superuser account with unique name, and modify the /etc/grub.d/01_users configuration file to reflect the account name change. It is highly suggested not to use common administrator account names like root, admin, or administrator for the grub2 superuser account. Change the superuser to a different username (The default is 'root'). $ sed -i 's/\(set superusers=\).*/\1"<unique user ID>"/g' /etc/grub.d/01_users Once the superuser account has been added, update the grub.cfg file by running: grubby --update-kernel=ALL --env=/boot/grub2/grubenv |
medium | |||
| CCI-000213 | SRG-OS-000080-GPOS-00048 | TBD - Assigned by DISA after STIG release | The operating system must enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | CCE-80829-5: Set the UEFI Boot Loader Password | To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be properly configured to incorporate access control methods that do not rely solely on the possession of a certificate for access. Successful authentication must not automatically give an entity access to an asset or security boundary. Authorization procedures and controls must be implemented to ensure each authenticated entity also has a validated and current authorization. Authorization is the process of determining whether an entity, once authenticated, is permitted to access a specific asset. Information systems use access control policies and enforcement mechanisms to implement this requirement. Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, and cryptography. These policies and mechanisms must be employed by the application to control access between users (or processes acting on behalf of users) and objects (e.g., devices, files, records, processes, programs, and domains) in the information system. | The grub2 boot loader should have a superuser account and password
protection enabled to protect boot-time settings.
Since plaintext passwords are a security risk, generate a hash for the password by running the following command: # grub2-setpasswordWhen prompted, enter the password that was selected. |
Applicable - Configurable | Verify the operating system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies. If it does not, this is a finding. | To verify the boot loader superuser password has been set, run the following command:
$ sudo grep "^[\s]*GRUB2_PASSWORD=grub\.pbkdf2\.sha512.*$" /boot/efi/EFI/redhat/user.cfg
The output should be similar to:
GRUB2_PASSWORD=grub.pbkdf2.sha512.10000.C4E08AC72FBFF7E837FD267BFAD7AEB3D42DDC 2C99F2A94DD5E2E75C2DC331B719FE55D9411745F82D1B6CFD9E927D61925F9BBDD1CFAA0080E0 916F7AB46E0D.1302284FCCC52CD73BA3671C6C12C26FF50BA873293B24EE2A96EE3B57963E6D7 0C83964B473EC8F93B07FE749AA6710269E904A9B08A6BBACB00A2D242AD828Is it the case that no password is set? |
Configure the operating system to enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | The grub2 boot loader should have a superuser account and password
protection enabled to protect boot-time settings.
Since plaintext passwords are a security risk, generate a hash for the password by running the following command: # grub2-setpasswordWhen prompted, enter the password that was selected. |
high | |||
| CCI-000213 | SRG-OS-000080-GPOS-00048 | TBD - Assigned by DISA after STIG release | The operating system must enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | CCE-82186-8: Require Authentication for Emergency Systemd Target | To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be properly configured to incorporate access control methods that do not rely solely on the possession of a certificate for access. Successful authentication must not automatically give an entity access to an asset or security boundary. Authorization procedures and controls must be implemented to ensure each authenticated entity also has a validated and current authorization. Authorization is the process of determining whether an entity, once authenticated, is permitted to access a specific asset. Information systems use access control policies and enforcement mechanisms to implement this requirement. Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, and cryptography. These policies and mechanisms must be employed by the application to control access between users (or processes acting on behalf of users) and objects (e.g., devices, files, records, processes, programs, and domains) in the information system. | Emergency mode is intended as a system recovery
method, providing a single user root access to the system
during a failed boot sequence.
By default, Emergency mode is protected by requiring a password and is set in /usr/lib/systemd/system/emergency.service. |
Applicable - Configurable | Verify the operating system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies. If it does not, this is a finding. | To check if authentication is required for emergency mode, run the following command:
$ grep sulogin /usr/lib/systemd/system/emergency.serviceThe output should be similar to the following, and the line must begin with ExecStart and /usr/lib/systemd/systemd-sulogin-shell. ExecStart=-/usr/lib/systemd/systemd-sulogin-shell emergencyThen, check if the emergency target requires the emergency service: Run the following command: $ sudo grep Requires /usr/lib/systemd/system/emergency.targetThe output should be the following: Requires=emergency.serviceThen, check if there is no custom emergency target configured in systemd configuration. Run the following command: $ sudo grep -r emergency.target /etc/systemd/system/The output should be empty. Then, check if there is no custom emergency service configured in systemd configuration. Run the following command: $ sudo grep -r emergency.service /etc/systemd/system/The output should be empty. Is it the case that the output is different? |
Configure the operating system to enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | Emergency mode is intended as a system recovery
method, providing a single user root access to the system
during a failed boot sequence.
By default, Emergency mode is protected by requiring a password and is set in /usr/lib/systemd/system/emergency.service. |
medium | |||
| CCI-000213 | SRG-OS-000080-GPOS-00048 | TBD - Assigned by DISA after STIG release | The operating system must enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | CCE-80855-0: Require Authentication for Single User Mode | To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-approved PKIs, all DoD systems (e.g., web servers and web portals) must be properly configured to incorporate access control methods that do not rely solely on the possession of a certificate for access. Successful authentication must not automatically give an entity access to an asset or security boundary. Authorization procedures and controls must be implemented to ensure each authenticated entity also has a validated and current authorization. Authorization is the process of determining whether an entity, once authenticated, is permitted to access a specific asset. Information systems use access control policies and enforcement mechanisms to implement this requirement. Access control policies include: identity-based policies, role-based policies, and attribute-based policies. Access enforcement mechanisms include: access control lists, access control matrices, and cryptography. These policies and mechanisms must be employed by the application to control access between users (or processes acting on behalf of users) and objects (e.g., devices, files, records, processes, programs, and domains) in the information system. | Single-user mode is intended as a system recovery
method, providing a single user root access to the system by
providing a boot option at startup.
By default, single-user mode is protected by requiring a password and is set in /usr/lib/systemd/system/rescue.service. |
Applicable - Configurable | Verify the operating system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies. If it does not, this is a finding. | To check if authentication is required for single-user mode, run the following command:
$ grep sulogin /usr/lib/systemd/system/rescue.serviceThe output should be similar to the following, and the line must begin with ExecStart and /usr/lib/systemd/systemd-sulogin-shell. ExecStart=-/usr/lib/systemd/systemd-sulogin-shell rescueIs it the case that the output is different? |
Configure the operating system to enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. | Single-user mode is intended as a system recovery
method, providing a single user root access to the system by
providing a boot option at startup.
By default, single-user mode is protected by requiring a password and is set in /usr/lib/systemd/system/rescue.service. |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82988-7: Disable chrony daemon from acting as server | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The port option in /etc/chrony.conf can be set to 0 to make chrony daemon to never open any listening port for server operation and to operate strictly in a client-only mode. | Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 disables the chrony daemon from acting as a server with the following command:
$ grep -w port /etc/chrony.conf port 0Is it the case that the "port" option is not set to "0", is commented out, or is missing? |
Configure the operating system to disable non-essential capabilities. | The port option in /etc/chrony.conf can be set to 0 to make chrony daemon to never open any listening port for server operation and to operate strictly in a client-only mode. | low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82840-0: Disable network management of chrony daemon | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The cmdport option in /etc/chrony.conf can be set to 0 to stop chrony daemon from listening on the UDP port 323 for management connections made by chronyc. | Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 disables network management of the chrony daemon with the following command:
$ grep -w cmdport /etc/chrony.conf cmdport 0Is it the case that the "cmdport" option is not set to "0", is commented out, or is missing? |
Configure the operating system to disable non-essential capabilities. | The cmdport option in /etc/chrony.conf can be set to 0 to stop chrony daemon from listening on the UDP port 323 for management connections made by chronyc. | low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82194-2: Enable Kernel Page-Table Isolation (KPTI) | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | To enable Kernel page-table isolation,
add the argument pti=on to the default
GRUB 2 command line for the Linux operating system.
To ensure that pti=on is added as a kernel command line
argument to newly installed kernels, add pti=on to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... pti=on ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="pti=on" |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes pti=on,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*pti=on.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*pti=on.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'pti=on'The command should not return any output. Is it the case that Kernel page-table isolation is not enabled? |
Configure the operating system to disable non-essential capabilities. | To enable Kernel page-table isolation,
add the argument pti=on to the default
GRUB 2 command line for the Linux operating system.
To ensure that pti=on is added as a kernel command line
argument to newly installed kernels, add pti=on to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... pti=on ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="pti=on" |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82028-2: Disable ATM Support | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The Asynchronous Transfer Mode (ATM) is a protocol operating on
network, data link, and physical layers, based on virtual circuits
and virtual paths.
To configure the system to prevent the atm
kernel module from being loaded, add the following line to the file /etc/modprobe.d/atm.conf:
install atm /bin/falseTo configure the system to prevent the atm from being used,
add the following line to file /etc/modprobe.d/atm.conf:
blacklist atm |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. |
If the system is configured to prevent the loading of the atm kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the atm kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r atm /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to disable non-essential capabilities. | The Asynchronous Transfer Mode (ATM) is a protocol operating on
network, data link, and physical layers, based on virtual circuits
and virtual paths.
To configure the system to prevent the atm
kernel module from being loaded, add the following line to the file /etc/modprobe.d/atm.conf:
install atm /bin/falseTo configure the system to prevent the atm from being used,
add the following line to file /etc/modprobe.d/atm.conf:
blacklist atm |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-80832-9: Disable Bluetooth Kernel Module | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The kernel's module loading system can be configured to prevent
loading of the Bluetooth module. Add the following to
the appropriate /etc/modprobe.d configuration file
to prevent the loading of the Bluetooth module:
install bluetooth /bin/true |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. |
If the system is configured to prevent the loading of the bluetooth kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the bluetooth kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r bluetooth /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to disable non-essential capabilities. | The kernel's module loading system can be configured to prevent
loading of the Bluetooth module. Add the following to
the appropriate /etc/modprobe.d configuration file
to prevent the loading of the Bluetooth module:
install bluetooth /bin/true |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82059-7: Disable CAN Support | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The Controller Area Network (CAN) is a serial communications
protocol which was initially developed for automotive and
is now also used in marine, industrial, and medical applications.
To configure the system to prevent the can
kernel module from being loaded, add the following line to the file /etc/modprobe.d/can.conf:
install can /bin/falseTo configure the system to prevent the can from being used,
add the following line to file /etc/modprobe.d/can.conf:
blacklist can |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. |
If the system is configured to prevent the loading of the can kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the can kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r can /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to disable non-essential capabilities. | The Controller Area Network (CAN) is a serial communications
protocol which was initially developed for automotive and
is now also used in marine, industrial, and medical applications.
To configure the system to prevent the can
kernel module from being loaded, add the following line to the file /etc/modprobe.d/can.conf:
install can /bin/falseTo configure the system to prevent the can from being used,
add the following line to file /etc/modprobe.d/can.conf:
blacklist can |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-81031-7: Disable Mounting of cramfs | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. |
To configure the system to prevent the cramfs
kernel module from being loaded, add the following line to the file /etc/modprobe.d/cramfs.conf:
install cramfs /bin/falseTo configure the system to prevent the cramfs from being used,
add the following line to file /etc/modprobe.d/cramfs.conf:
blacklist cramfsThis effectively prevents usage of this uncommon filesystem. The cramfs filesystem type is a compressed read-only Linux filesystem embedded in small footprint systems. A cramfs image can be used without having to first decompress the image. |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. |
If the system is configured to prevent the loading of the cramfs kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the cramfs kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r cramfs /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to disable non-essential capabilities. |
To configure the system to prevent the cramfs
kernel module from being loaded, add the following line to the file /etc/modprobe.d/cramfs.conf:
install cramfs /bin/falseTo configure the system to prevent the cramfs from being used,
add the following line to file /etc/modprobe.d/cramfs.conf:
blacklist cramfsThis effectively prevents usage of this uncommon filesystem. The cramfs filesystem type is a compressed read-only Linux filesystem embedded in small footprint systems. A cramfs image can be used without having to first decompress the image. |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82005-0: Disable IEEE 1394 (FireWire) Support | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The IEEE 1394 (FireWire) is a serial bus standard for
high-speed real-time communication.
To configure the system to prevent the firewire-core
kernel module from being loaded, add the following line to the file /etc/modprobe.d/firewire-core.conf:
install firewire-core /bin/falseTo configure the system to prevent the firewire-core from being used,
add the following line to file /etc/modprobe.d/firewire-core.conf:
blacklist firewire-core |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. |
If the system is configured to prevent the loading of the firewire-core kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the firewire-core kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r firewire-core /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to disable non-essential capabilities. | The IEEE 1394 (FireWire) is a serial bus standard for
high-speed real-time communication.
To configure the system to prevent the firewire-core
kernel module from being loaded, add the following line to the file /etc/modprobe.d/firewire-core.conf:
install firewire-core /bin/falseTo configure the system to prevent the firewire-core from being used,
add the following line to file /etc/modprobe.d/firewire-core.conf:
blacklist firewire-core |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-80834-5: Disable SCTP Support | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The Stream Control Transmission Protocol (SCTP) is a
transport layer protocol, designed to support the idea of
message-oriented communication, with several streams of messages
within one connection.
To configure the system to prevent the sctp
kernel module from being loaded, add the following line to the file /etc/modprobe.d/sctp.conf:
install sctp /bin/falseTo configure the system to prevent the sctp from being used,
add the following line to file /etc/modprobe.d/sctp.conf:
blacklist sctp |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. |
If the system is configured to prevent the loading of the sctp kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the sctp kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r sctp /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to disable non-essential capabilities. | The Stream Control Transmission Protocol (SCTP) is a
transport layer protocol, designed to support the idea of
message-oriented communication, with several streams of messages
within one connection.
To configure the system to prevent the sctp
kernel module from being loaded, add the following line to the file /etc/modprobe.d/sctp.conf:
install sctp /bin/falseTo configure the system to prevent the sctp from being used,
add the following line to file /etc/modprobe.d/sctp.conf:
blacklist sctp |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82297-3: Disable TIPC Support | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The Transparent Inter-Process Communication (TIPC) protocol
is designed to provide communications between nodes in a
cluster.
To configure the system to prevent the tipc
kernel module from being loaded, add the following line to the file /etc/modprobe.d/tipc.conf:
install tipc /bin/falseTo configure the system to prevent the tipc from being used,
add the following line to file /etc/modprobe.d/tipc.conf:
blacklist tipc |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. |
If the system is configured to prevent the loading of the tipc kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the tipc kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r tipc /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to disable non-essential capabilities. | The Transparent Inter-Process Communication (TIPC) protocol
is designed to provide communications between nodes in a
cluster.
To configure the system to prevent the tipc
kernel module from being loaded, add the following line to the file /etc/modprobe.d/tipc.conf:
install tipc /bin/falseTo configure the system to prevent the tipc from being used,
add the following line to file /etc/modprobe.d/tipc.conf:
blacklist tipc |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-86960-2: Disable the uvcvideo module | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | If the device contains a camera it should be covered or disabled when not in use. | Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | If the device or Red Hat Enterprise Linux 8 does not have a camera installed, this requirement is not applicable. This requirement is not applicable to mobile devices (smartphones and tablets), where the use of the camera is a local AO decision. This requirement is not applicable to dedicated VTC suites located in approved VTC locations that are centrally managed. For an external camera, if there is not a method for the operator to manually disconnect the camera at the end of collaborative computing sessions, this is a finding. For a built-in camera, the camera must be protected by a camera cover (e.g., laptop camera cover slide) when not in use. If the built-in camera is not protected with a camera cover, or is not physically disabled, this is a finding. If the camera is not disconnected, covered, or physically disabled, determine if it is being disabled via software with the following commands: Verify the operating system disables the ability to load the uvcvideo kernel module. $ sudo grep -r uvcvideo /etc/modprobe.d/* | grep "/bin/true" install uvcvideo /bin/true Is it the case that the command does not return any output, or the line is commented out, and the collaborative computing device has not been authorized for use? | Configure the operating system to disable non-essential capabilities. | If the device contains a camera it should be covered or disabled when not in use. | medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82919-2: Uninstall abrt-addon-ccpp Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The abrt-addon-ccpp package can be removed with the following command:
$ sudo yum erase abrt-addon-ccpp |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the abrt-addon-ccpp package is installed:
$ rpm -q abrt-addon-ccppIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The abrt-addon-ccpp package can be removed with the following command:
$ sudo yum erase abrt-addon-ccpp |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82926-7: Uninstall abrt-addon-kerneloops Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The abrt-addon-kerneloops package can be removed with the following command:
$ sudo yum erase abrt-addon-kerneloops |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the abrt-addon-kerneloops package is installed:
$ rpm -q abrt-addon-kerneloopsIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The abrt-addon-kerneloops package can be removed with the following command:
$ sudo yum erase abrt-addon-kerneloops |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82907-7: Uninstall abrt-cli Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The abrt-cli package can be removed with the following command:
$ sudo yum erase abrt-cli |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the abrt-cli package is installed:
$ rpm -q abrt-cliIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The abrt-cli package can be removed with the following command:
$ sudo yum erase abrt-cli |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82910-1: Uninstall abrt-plugin-sosreport Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The abrt-plugin-sosreport package can be removed with the following command:
$ sudo yum erase abrt-plugin-sosreport |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the abrt-plugin-sosreport package is installed:
$ rpm -q abrt-plugin-sosreportIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The abrt-plugin-sosreport package can be removed with the following command:
$ sudo yum erase abrt-plugin-sosreport |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-80948-3: Uninstall Automatic Bug Reporting Tool (abrt) | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The Automatic Bug Reporting Tool (abrt) collects
and reports crash data when an application crash is detected. Using a variety
of plugins, abrt can email crash reports to system administrators, log crash
reports to files, or forward crash reports to a centralized issue tracking
system such as RHTSupport.
The abrt package can be removed with the following command:
$ sudo yum erase abrt |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the abrt package is installed:
$ rpm -q abrtIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The Automatic Bug Reporting Tool (abrt) collects
and reports crash data when an application crash is detected. Using a variety
of plugins, abrt can email crash reports to system administrators, log crash
reports to files, or forward crash reports to a centralized issue tracking
system such as RHTSupport.
The abrt package can be removed with the following command:
$ sudo yum erase abrt |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82943-2: Uninstall gssproxy Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The gssproxy package can be removed with the following command:
$ sudo yum erase gssproxy |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the gssproxy package is installed:
$ rpm -q gssproxyIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The gssproxy package can be removed with the following command:
$ sudo yum erase gssproxy |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82946-5: Uninstall iprutils Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The iprutils package can be removed with the following command:
$ sudo yum erase iprutils |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the iprutils package is installed:
$ rpm -q iprutilsIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The iprutils package can be removed with the following command:
$ sudo yum erase iprutils |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82931-7: Uninstall krb5-workstation Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The krb5-workstation package can be removed with the following command:
$ sudo yum erase krb5-workstation |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the krb5-workstation package is installed:
$ rpm -q krb5-workstationIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The krb5-workstation package can be removed with the following command:
$ sudo yum erase krb5-workstation |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-89201-8: Uninstall libreport-plugin-logger Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The libreport-plugin-logger package can be removed with the following command:
$ sudo yum erase libreport-plugin-logger |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the libreport-plugin-logger package is installed:
$ rpm -q libreport-plugin-loggerIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The libreport-plugin-logger package can be removed with the following command:
$ sudo yum erase libreport-plugin-logger |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-88955-0: Uninstall libreport-plugin-rhtsupport Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The libreport-plugin-rhtsupport package can be removed with the following command:
$ sudo yum erase libreport-plugin-rhtsupport |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the libreport-plugin-rhtsupport package is installed:
$ rpm -q libreport-plugin-rhtsupportIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The libreport-plugin-rhtsupport package can be removed with the following command:
$ sudo yum erase libreport-plugin-rhtsupport |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-86084-1: Uninstall python3-abrt-addon Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The python3-abrt-addon package can be removed with the following command:
$ sudo yum erase python3-abrt-addon |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the python3-abrt-addon package is installed:
$ rpm -q python3-abrt-addonIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The python3-abrt-addon package can be removed with the following command:
$ sudo yum erase python3-abrt-addon |
low | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82184-3: Uninstall rsh-server Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The rsh-server package can be removed with the following command:
$ sudo yum erase rsh-server |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the rsh-server package is installed:
$ rpm -q rsh-serverIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The rsh-server package can be removed with the following command:
$ sudo yum erase rsh-server |
high | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-81039-0: Uninstall Sendmail Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | Sendmail is not the default mail transfer agent and is
not installed by default.
The sendmail package can be removed with the following command:
$ sudo yum erase sendmail |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the sendmail package is installed:
$ rpm -q sendmailIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | Sendmail is not the default mail transfer agent and is
not installed by default.
The sendmail package can be removed with the following command:
$ sudo yum erase sendmail |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82182-7: Uninstall telnet-server Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The telnet-server package can be removed with the following command:
$ sudo yum erase telnet-server |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the telnet-server package is installed:
$ rpm -q telnet-serverIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The telnet-server package can be removed with the following command:
$ sudo yum erase telnet-server |
high | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82904-4: Uninstall tuned Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The tuned package can be removed with the following command:
$ sudo yum erase tuned |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the tuned package is installed:
$ rpm -q tunedIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The tuned package can be removed with the following command:
$ sudo yum erase tuned |
medium | |||
| CCI-000381 | SRG-OS-000095-GPOS-00049 | TBD - Assigned by DISA after STIG release | The operating system must be configured to disable non-essential capabilities. | CCE-82414-4: Uninstall vsftpd Package | It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services, provided by default, may not be necessary to support essential organizational operations (e.g., key missions, functions). Examples of non-essential capabilities include, but are not limited to, games, software packages, tools, and demonstration software, not related to requirements or providing a wide array of functionality not required for every mission, but which cannot be disabled. | The vsftpd package can be removed with the following command: $ sudo yum erase vsftpd |
Applicable - Configurable | Verify the operating system is configured to disable non-essential capabilities. If it does not, this is a finding. | Run the following command to determine if the vsftpd package is installed:
$ rpm -q vsftpdIs it the case that the package is installed? |
Configure the operating system to disable non-essential capabilities. | The vsftpd package can be removed with the following command: $ sudo yum erase vsftpd |
high | |||
| CCI-000382 | SRG-OS-000096-GPOS-00050 | TBD - Assigned by DISA after STIG release | The operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | CCE-82988-7: Disable chrony daemon from acting as server | In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the operating system must support the organizational requirements, providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues. | The port option in /etc/chrony.conf can be set to 0 to make chrony daemon to never open any listening port for server operation and to operate strictly in a client-only mode. | Applicable - Configurable | Verify the operating system is configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 disables the chrony daemon from acting as a server with the following command:
$ grep -w port /etc/chrony.conf port 0Is it the case that the "port" option is not set to "0", is commented out, or is missing? |
Configure the operating system to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | The port option in /etc/chrony.conf can be set to 0 to make chrony daemon to never open any listening port for server operation and to operate strictly in a client-only mode. | low | |||
| CCI-000382 | SRG-OS-000096-GPOS-00050 | TBD - Assigned by DISA after STIG release | The operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | CCE-82840-0: Disable network management of chrony daemon | In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the operating system must support the organizational requirements, providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues. | The cmdport option in /etc/chrony.conf can be set to 0 to stop chrony daemon from listening on the UDP port 323 for management connections made by chronyc. | Applicable - Configurable | Verify the operating system is configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 disables network management of the chrony daemon with the following command:
$ grep -w cmdport /etc/chrony.conf cmdport 0Is it the case that the "cmdport" option is not set to "0", is commented out, or is missing? |
Configure the operating system to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | The cmdport option in /etc/chrony.conf can be set to 0 to stop chrony daemon from listening on the UDP port 323 for management connections made by chronyc. | low | |||
| CCI-000382 | SRG-OS-000096-GPOS-00050 | TBD - Assigned by DISA after STIG release | The operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | CCE-84300-3: Configure the Firewalld Ports | In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the operating system must support the organizational requirements, providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues. | Configure the firewalld ports to allow approved services to have access to the system.
To configure firewalld to open ports, run the following command:
firewall-cmd --permanent --add-port=port_number/tcpTo configure firewalld to allow access for pre-defined services, run the following command: firewall-cmd --permanent --add-service=service_name |
Applicable - Configurable | Verify the operating system is configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. If it does not, this is a finding. | Inspect the list of enabled firewall ports and verify they are configured correctly by running
the following command:
$ sudo firewall-cmd --list-allAsk the System Administrator for the site or program Ports, Protocols, and Services Management Component Local Service Assessment (PPSM CLSA). Verify the services allowed by the firewall match the PPSM CLSA. Is it the case that there are additional ports, protocols, or services that are not in the PPSM CLSA, or there are ports, protocols, or services that are prohibited by the PPSM Category Assurance List (CAL), or there are no firewall rules configured? |
Configure the operating system to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | Configure the firewalld ports to allow approved services to have access to the system.
To configure firewalld to open ports, run the following command:
firewall-cmd --permanent --add-port=port_number/tcpTo configure firewalld to allow access for pre-defined services, run the following command: firewall-cmd --permanent --add-service=service_name |
medium | |||
| CCI-000382 | SRG-OS-000096-GPOS-00050 | TBD - Assigned by DISA after STIG release | The operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | CCE-82998-6: Install firewalld Package | In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the operating system must support the organizational requirements, providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
Applicable - Configurable | Verify the operating system is configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. If it does not, this is a finding. | Run the following command to determine if the firewalld package is installed: $ rpm -q firewalldIs it the case that the package is not installed? |
Configure the operating system to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
medium | |||
| CCI-000382 | SRG-OS-000096-GPOS-00050 | TBD - Assigned by DISA after STIG release | The operating system must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. | CCE-80877-4: Verify firewalld Enabled | In order to prevent unauthorized connection of devices, unauthorized transfer of information, or unauthorized tunneling (i.e., embedding of data types within data types), organizations must disable or restrict unused or unnecessary physical and logical ports/protocols on information systems. Operating systems are capable of providing a wide variety of functions and services. Some of the functions and services provided by default may not be necessary to support essential organizational operations. Additionally, it is sometimes convenient to provide multiple services from a single component (e.g., VPN and IPS); however, doing so increases risk over limiting the services provided by any one component. To support the requirements and principles of least functionality, the operating system must support the organizational requirements, providing only essential capabilities and limiting the use of ports, protocols, and/or services to only those required, authorized, and approved to conduct official business or to address authorized quality of life issues. |
The firewalld service can be enabled with the following command:
$ sudo systemctl enable firewalld.service |
Applicable - Configurable | Verify the operating system is configured to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. If it does not, this is a finding. |
Run the following command to determine the current status of the
firewalld service:
$ sudo systemctl is-active firewalldIf the service is running, it should return the following: activeIs it the case that the "firewalld" service is disabled, masked, or not started.? |
Configure the operating system to prohibit or restrict the use of functions, ports, protocols, and/or services, as defined in the PPSM CAL and vulnerability assessments. |
The firewalld service can be enabled with the following command:
$ sudo systemctl enable firewalld.service |
medium | |||
| CCI-000764 | SRG-OS-000104-GPOS-00051 | TBD - Assigned by DISA after STIG release | The operating system must uniquely identify and must authenticate organizational users (or processes acting on behalf of organizational users). | CCE-89903-9: Ensure All Accounts on the System Have Unique User IDs | To assure accountability and prevent unauthenticated access, organizational users must be identified and authenticated to prevent potential misuse and compromise of the system. Organizational users include organizational employees or individuals the organization deems to have equivalent status of employees (e.g., contractors). Organizational users (and processes acting on behalf of users) must be uniquely identified and authenticated to all accesses, except for the following: 1) Accesses explicitly identified and documented by the organization. Organizations document specific user actions that can be performed on the information system without identification or authentication; and 2) Accesses that occur through authorized use of group authenticators without individual authentication. Organizations may require unique identification of individuals in group accounts (e.g., shared privilege accounts) or for detailed accountability of individual activity. | Change user IDs (UIDs), or delete accounts, so each has a unique name. | Applicable - Configurable | Verify the operating system uniquely identifies and authenticates organizational users (or processes acting on behalf of organizational users). If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 contains no duplicate User IDs (UIDs) for interactive users.
Check that the operating system contains no duplicate UIDs for interactive users with the following command:
$ sudo awk -F ":" 'list[$3]++{print $1, $3}' /etc/passwd Is it the case that output is produced and the accounts listed are interactive user accounts? |
Configure the operating system to uniquely identify and authenticate organizational users (or processes acting on behalf of organizational users). | Change user IDs (UIDs), or delete accounts, so each has a unique name. | medium | |||
| CCI-000765 | SRG-OS-000105-GPOS-00052 | TBD - Assigned by DISA after STIG release | The operating system must use multifactor authentication for network access to privileged accounts. | CCE-84029-8: Install Smart Card Packages For Multifactor Authentication | Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifactor authentication requires using two or more factors to achieve authentication. Factors include: 1) something a user knows (e.g., password/PIN); 2) something a user has (e.g., cryptographic identification device, token); and 3) something a user is (e.g., biometric). A privileged account is defined as an information system account with authorizations of a privileged user. Network access is defined as access to an information system by a user (or a process acting on behalf of a user) communicating through a network (e.g., local area network, wide area network, or the Internet). The DoD CAC with DoD-approved PKI is an example of multifactor authentication. | Configure the operating system to implement multifactor authentication by
installing the required package with the following command:
The openssl-pkcs11 package can be installed with the following command:
$ sudo yum install openssl-pkcs11 |
Applicable - Configurable | Verify the operating system uses multifactor authentication for network access to privileged accounts. If it does not, this is a finding. | Check that Red Hat Enterprise Linux 8 has the packages for smart card support installed.
Run the following command to determine if the openssl-pkcs11 package is installed:
$ rpm -q openssl-pkcs11Is it the case that smartcard software is not installed? |
Configure the operating system to use multifactor authentication for network access to privileged accounts. | Configure the operating system to implement multifactor authentication by
installing the required package with the following command:
The openssl-pkcs11 package can be installed with the following command:
$ sudo yum install openssl-pkcs11 |
medium | |||
| CCI-000765 | SRG-OS-000105-GPOS-00052 | TBD - Assigned by DISA after STIG release | The operating system must use multifactor authentication for network access to privileged accounts. | CCE-80909-5: Enable Smartcards in SSSD | Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifactor authentication requires using two or more factors to achieve authentication. Factors include: 1) something a user knows (e.g., password/PIN); 2) something a user has (e.g., cryptographic identification device, token); and 3) something a user is (e.g., biometric). A privileged account is defined as an information system account with authorizations of a privileged user. Network access is defined as access to an information system by a user (or a process acting on behalf of a user) communicating through a network (e.g., local area network, wide area network, or the Internet). The DoD CAC with DoD-approved PKI is an example of multifactor authentication. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
Applicable - Configurable | Verify the operating system uses multifactor authentication for network access to privileged accounts. If it does not, this is a finding. | To verify that smart cards are enabled in SSSD, run the following command:
$ sudo grep pam_cert_auth /etc/sssd/sssd.confIf configured properly, output should be pam_cert_auth = TrueTo verify that smart cards are enabled in PAM files, run the following command: $ sudo grep -e "auth.*pam_sss\.so.*\(allow_missing_name\|try_cert_auth\)" /etc/pam.d/smartcard-auth /etc/pam.d/system-authIf configured properly, output should be /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authIs it the case that smart cards are not enabled in SSSD? |
Configure the operating system to use multifactor authentication for network access to privileged accounts. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
medium | |||
| CCI-000766 | SRG-OS-000106-GPOS-00053 | TBD - Assigned by DISA after STIG release | The operating system must use multifactor authentication for network access to non-privileged accounts. | CCE-80896-4: Disable SSH Access via Empty Passwords | To assure accountability and prevent unauthenticated access, non-privileged users must utilize multifactor authentication to prevent potential misuse and compromise of the system. Multifactor authentication uses two or more factors to achieve authentication. Factors include: 1) Something you know (e.g., password/PIN); 2) Something you have (e.g., cryptographic identification device, token); and 3) Something you are (e.g., biometric). A non-privileged account is any information system account with authorizations of a non-privileged user. Network access is any access to an application by a user (or process acting on behalf of a user) where said access is obtained through a network connection. The DoD CAC with DoD-approved PKI is an example of multifactor authentication. | Disallow SSH login with empty passwords.
The default SSH configuration disables logins with empty passwords. The appropriate
configuration is used if no value is set for PermitEmptyPasswords.
To explicitly disallow SSH login from accounts with empty passwords, add or correct the following line in /etc/ssh/sshd_config: PermitEmptyPasswords noAny accounts with empty passwords should be disabled immediately, and PAM configuration should prevent users from being able to assign themselves empty passwords. |
Applicable - Configurable | Verify the operating system uses multifactor authentication for network access to non-privileged accounts. If it does not, this is a finding. | To determine how the SSH daemon's PermitEmptyPasswords option is set, run the following command:
$ sudo grep -i PermitEmptyPasswords /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system to use multifactor authentication for network access to non-privileged accounts. | Disallow SSH login with empty passwords.
The default SSH configuration disables logins with empty passwords. The appropriate
configuration is used if no value is set for PermitEmptyPasswords.
To explicitly disallow SSH login from accounts with empty passwords, add or correct the following line in /etc/ssh/sshd_config: PermitEmptyPasswords noAny accounts with empty passwords should be disabled immediately, and PAM configuration should prevent users from being able to assign themselves empty passwords. |
high | |||
| CCI-000766 | SRG-OS-000106-GPOS-00053 | TBD - Assigned by DISA after STIG release | The operating system must use multifactor authentication for network access to non-privileged accounts. | CCE-80909-5: Enable Smartcards in SSSD | To assure accountability and prevent unauthenticated access, non-privileged users must utilize multifactor authentication to prevent potential misuse and compromise of the system. Multifactor authentication uses two or more factors to achieve authentication. Factors include: 1) Something you know (e.g., password/PIN); 2) Something you have (e.g., cryptographic identification device, token); and 3) Something you are (e.g., biometric). A non-privileged account is any information system account with authorizations of a non-privileged user. Network access is any access to an application by a user (or process acting on behalf of a user) where said access is obtained through a network connection. The DoD CAC with DoD-approved PKI is an example of multifactor authentication. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
Applicable - Configurable | Verify the operating system uses multifactor authentication for network access to non-privileged accounts. If it does not, this is a finding. | To verify that smart cards are enabled in SSSD, run the following command:
$ sudo grep pam_cert_auth /etc/sssd/sssd.confIf configured properly, output should be pam_cert_auth = TrueTo verify that smart cards are enabled in PAM files, run the following command: $ sudo grep -e "auth.*pam_sss\.so.*\(allow_missing_name\|try_cert_auth\)" /etc/pam.d/smartcard-auth /etc/pam.d/system-authIf configured properly, output should be /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authIs it the case that smart cards are not enabled in SSSD? |
Configure the operating system to use multifactor authentication for network access to non-privileged accounts. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
medium | |||
| CCI-000765 | SRG-OS-000107-GPOS-00054 | TBD - Assigned by DISA after STIG release | The operating system must use multifactor authentication for local access to privileged accounts. | CCE-80909-5: Enable Smartcards in SSSD | To ensure accountability and prevent unauthenticated access, privileged users must utilize multifactor authentication to prevent potential misuse and compromise of the system. Multifactor authentication is defined as using two or more factors to achieve authentication. Factors include: 1) Something you know (e.g., password/PIN); 2) Something you have (e.g., cryptographic identification device, token); and 3) Something you are (e.g., biometric). A privileged account is defined as an operating system account with authorizations of a privileged user. Local access is defined as access to an organizational information system by a user (or process acting on behalf of a user) communicating through a direct connection without the use of a network. The DOD CAC with DOD-approved PKI is an example of multifactor authentication. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
Applicable - Configurable | Verify the operating system uses multifactor authentication for local access to privileged accounts. If it does not, this is a finding. | To verify that smart cards are enabled in SSSD, run the following command:
$ sudo grep pam_cert_auth /etc/sssd/sssd.confIf configured properly, output should be pam_cert_auth = TrueTo verify that smart cards are enabled in PAM files, run the following command: $ sudo grep -e "auth.*pam_sss\.so.*\(allow_missing_name\|try_cert_auth\)" /etc/pam.d/smartcard-auth /etc/pam.d/system-authIf configured properly, output should be /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authIs it the case that smart cards are not enabled in SSSD? |
Configure the operating system to use multifactor authentication for local access to privileged accounts. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
medium | |||
| CCI-000766 | SRG-OS-000108-GPOS-00055 | TBD - Assigned by DISA after STIG release | The operating system must use multifactor authentication for local access to nonprivileged accounts. | CCE-80909-5: Enable Smartcards in SSSD | To ensure accountability, prevent unauthenticated access, and prevent misuse of the system, nonprivileged users must utilize multifactor authentication for local access. Multifactor authentication is defined as using two or more factors to achieve authentication. Factors include: 1) Something you know (e.g., password/PIN); 2) Something you have (e.g., cryptographic identification device or token); and 3) Something you are (e.g., biometric). A nonprivileged account is defined as an operating system account with authorizations of a regular or nonprivileged user. Local access is defined as access to an organizational information system by a user (or process acting on behalf of a user) communicating through a direct connection without the use of a network. The DOD CAC with DOD-approved PKI is an example of multifactor authentication. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
Applicable - Configurable | Verify the operating system uses multifactor authentication for local access to nonprivileged accounts. If it does not, this is a finding. | To verify that smart cards are enabled in SSSD, run the following command:
$ sudo grep pam_cert_auth /etc/sssd/sssd.confIf configured properly, output should be pam_cert_auth = TrueTo verify that smart cards are enabled in PAM files, run the following command: $ sudo grep -e "auth.*pam_sss\.so.*\(allow_missing_name\|try_cert_auth\)" /etc/pam.d/smartcard-auth /etc/pam.d/system-authIf configured properly, output should be /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authIs it the case that smart cards are not enabled in SSSD? |
Configure the operating system to use multifactor authentication for local access to nonprivileged accounts. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
medium | |||
| CCI-004045 | SRG-OS-000109-GPOS-00056 | TBD - Assigned by DISA after STIG release | The operating system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator. | CCE-80901-2: Disable SSH Root Login | To ensure individual accountability and prevent unauthorized access, organizational users must be individually identified and authenticated. A group authenticator is a generic account used by multiple individuals. Use of a group authenticator alone does not uniquely identify individual users. Examples of the group authenticator is the Unix OS "root" user account, the Windows "Administrator" account, the "sa" account, or a "helpdesk" account. For example, the Unix and Windows operating systems offer a "switch user" capability allowing users to authenticate with their individual credentials and, when needed, "switch" to the administrator role. This method provides for unique individual authentication prior to using a group authenticator. Users (and any processes acting on behalf of users) need to be uniquely identified and authenticated for all accesses other than those accesses explicitly identified and documented by the organization, which outlines specific user actions that can be performed on the operating system without identification or authentication. Requiring individuals to be authenticated with an individual authenticator prior to using a group authenticator allows for traceability of actions, as well as adding an additional level of protection of the actions that can be taken with group account knowledge. | The root user should never be allowed to login to a
system directly over a network.
To disable root login via SSH, add or correct the following line in
/etc/ssh/sshd_config:
PermitRootLogin no |
Applicable - Configurable | Verify the operating system requires individuals to be authenticated with an individual authenticator prior to using a group authenticator. If it does not, this is a finding. | To determine how the SSH daemon's PermitRootLogin option is set, run the following command:
$ sudo grep -i PermitRootLogin /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system to require individuals to be authenticated with an individual authenticator prior to using a group authenticator. | The root user should never be allowed to login to a
system directly over a network.
To disable root login via SSH, add or correct the following line in
/etc/ssh/sshd_config:
PermitRootLogin no |
medium | |||
| V-56765 | SRG-OS-000112-GPOS-00057 | TBD - Assigned by DISA after STIG release | The operating system must implement replay-resistant authentication mechanisms for network access to privileged accounts. | A replay attack may enable an unauthorized user to gain access to the operating system. Authentication sessions between the authenticator and the operating system validating the user credentials must not be vulnerable to a replay attack. An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message. A privileged account is any information system account with authorizations of a privileged user. Techniques used to address this include protocols using nonces (e.g., numbers generated for a specific one-time use) or challenges (e.g., TLS, WS_Security). Additional techniques include time-synchronous or challenge-response one-time authenticators. | |||||||||||
| V-56767 | SRG-OS-000113-GPOS-00058 | TBD - Assigned by DISA after STIG release | The operating system must implement replay-resistant authentication mechanisms for network access to nonprivileged accounts. | A replay attack may enable an unauthorized user to gain access to the operating system. Authentication sessions between the authenticator and the operating system validating the user credentials must not be vulnerable to a replay attack. An authentication process resists replay attacks if it is impractical to achieve a successful authentication by recording and replaying a previous authentication message. A nonprivileged account is any operating system account with authorizations of a nonprivileged user. Techniques used to address this include protocols using nonces (e.g., numbers generated for a specific one-time use) or challenges (e.g., TLS, WS_Security). Additional techniques include time-synchronous or challenge-response one-time authenticators. | |||||||||||
| CCI-000778 | SRG-OS-000114-GPOS-00059 | TBD - Assigned by DISA after STIG release | The operating system must uniquely identify peripherals before establishing a connection. | CCE-80835-2: Disable Modprobe Loading of USB Storage Driver | Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. | To prevent USB storage devices from being used, configure the kernel module loading system
to prevent automatic loading of the USB storage driver.
To configure the system to prevent the usb-storage
kernel module from being loaded, add the following line to the file /etc/modprobe.d/usb-storage.conf:
install usb-storage /bin/falseTo configure the system to prevent the usb-storage from being used,
add the following line to file /etc/modprobe.d/usb-storage.conf:
blacklist usb-storageThis will prevent the modprobe program from loading the usb-storage module, but will not prevent an administrator (or another program) from using the insmod program to load the module manually. |
Applicable - Configurable | Verify the operating system uniquely identifies peripherals before establishing a connection. If it does not, this is a finding. |
If the system is configured to prevent the loading of the usb-storage kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the usb-storage kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r usb-storage /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to uniquely identify peripherals before establishing a connection. | To prevent USB storage devices from being used, configure the kernel module loading system
to prevent automatic loading of the USB storage driver.
To configure the system to prevent the usb-storage
kernel module from being loaded, add the following line to the file /etc/modprobe.d/usb-storage.conf:
install usb-storage /bin/falseTo configure the system to prevent the usb-storage from being used,
add the following line to file /etc/modprobe.d/usb-storage.conf:
blacklist usb-storageThis will prevent the modprobe program from loading the usb-storage module, but will not prevent an administrator (or another program) from using the insmod program to load the module manually. |
medium | |||
| CCI-000778 | SRG-OS-000114-GPOS-00059 | TBD - Assigned by DISA after STIG release | The operating system must uniquely identify peripherals before establishing a connection. | CCE-80873-3: Disable the Automounter | Without identifying devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. | The autofs daemon mounts and unmounts filesystems, such as user
home directories shared via NFS, on demand. In addition, autofs can be used to handle
removable media, and the default configuration provides the cdrom device as /misc/cd.
However, this method of providing access to removable media is not common, so autofs
can almost always be disabled if NFS is not in use. Even if NFS is required, it may be
possible to configure filesystem mounts statically by editing /etc/fstab
rather than relying on the automounter.
The autofs service can be disabled with the following command:
$ sudo systemctl mask --now autofs.service |
Applicable - Configurable | Verify the operating system uniquely identifies peripherals before establishing a connection. If it does not, this is a finding. | To check that the autofs service is disabled in system boot configuration,
run the following command:
$ sudo systemctl is-enabled
Output should indicate the autofs service has either not been installed,
or has been disabled at all runlevels, as shown in the example below:
$ sudo systemctl is-enabledRun the following command to verify autofs is not active (i.e. not running) through current runtime configuration:
$ sudo systemctl is-active autofsIf the service is not running the command will return the following output: inactiveThe service will also be masked, to check that the autofs is masked, run the following command:
$ sudo systemctl show
If the service is masked the command will return the following outputs:
LoadState=masked UnitFileState=maskedIs it the case that the "autofs" is loaded and not masked? |
Configure the operating system to uniquely identify peripherals before establishing a connection. | The autofs daemon mounts and unmounts filesystems, such as user
home directories shared via NFS, on demand. In addition, autofs can be used to handle
removable media, and the default configuration provides the cdrom device as /misc/cd.
However, this method of providing access to removable media is not common, so autofs
can almost always be disabled if NFS is not in use. Even if NFS is required, it may be
possible to configure filesystem mounts statically by editing /etc/fstab
rather than relying on the automounter.
The autofs service can be disabled with the following command:
$ sudo systemctl mask --now autofs.service |
medium | |||
| CCI-003627 | SRG-OS-000118-GPOS-00060 | TBD - Assigned by DISA after STIG release | The operating system must disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity. | CCE-80954-1: Set Account Expiration Following Inactivity | Inactive identifiers pose a risk to systems and applications because attackers may exploit an inactive identifier and potentially obtain undetected access to the system. Owners of inactive accounts will not notice if unauthorized access to their user account has been obtained. Operating systems need to track periods of inactivity and disable application identifiers after 35 days of inactivity. | To specify the number of days after a password expires (which
signifies inactivity) until an account is permanently disabled, add or correct
the following line in /etc/default/useradd:
INACTIVE=If a password is currently on the verge of expiration, then day(s) remain(s) until the account is automatically disabled. However, if the password will not expire for another 60 days, then 60 days plus day(s) could elapse until the account would be automatically disabled. See the useradd man page for more information. |
Applicable - Configurable | Verify the operating system disables account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity. If it does not, this is a finding. | To verify the INACTIVE setting, run the following command:
$ grep "INACTIVE" /etc/default/useraddThe output should indicate the INACTIVE configuration option is set to an appropriate integer as shown in the example below: $ grep "INACTIVE" /etc/default/useradd INACTIVE=Is it the case that the value of INACTIVE is greater than the expected value or is -1? |
Configure the operating system to disable account identifiers (individuals, groups, roles, and devices) after 35 days of inactivity. | To specify the number of days after a password expires (which
signifies inactivity) until an account is permanently disabled, add or correct
the following line in /etc/default/useradd:
INACTIVE=If a password is currently on the verge of expiration, then day(s) remain(s) until the account is automatically disabled. However, if the password will not expire for another 60 days, then 60 days plus day(s) could elapse until the account would be automatically disabled. See the useradd man page for more information. |
medium | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-83484-6: Verify All Account Password Hashes are Shadowed with SHA512 | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | Verify the operating system requires the shadow password suite
configuration be set to encrypt interactive user passwords using a strong
cryptographic hash.
Check that the interactive user account passwords are using a strong
password hash with the following command:
$ sudo cut -d: -f2 /etc/shadow $6$kcOnRq/5$NUEYPuyL.wghQwWssXRcLRFiiru7f5JPV6GaJhNC2aK5F3PZpE/BCCtwrxRc/AInKMNX3CdMw11m9STiql12f/Password hashes ! or * indicate inactive accounts not available for logon and are not evaluated. If any interactive user password hash does not begin with $6, this is a finding. |
Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Verify that the interactive user account passwords are using a strong
password hash with the following command:
$ sudo cut -d: -f2 /etc/shadow $6$kcOnRq/5$NUEYPuyL.wghQwWssXRcLRFiiru7f5JPV6GaJhNC2aK5F3PZpE/BCCtwrxRc/AInKMNX3CdMw11m9STiql12f/Password hashes ! or * indicate inactive accounts not available for logon and are not evaluated. Is it the case that any interactive user password hash does not begin with "$6"? |
Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | Verify the operating system requires the shadow password suite
configuration be set to encrypt interactive user passwords using a strong
cryptographic hash.
Check that the interactive user account passwords are using a strong
password hash with the following command:
$ sudo cut -d: -f2 /etc/shadow $6$kcOnRq/5$NUEYPuyL.wghQwWssXRcLRFiiru7f5JPV6GaJhNC2aK5F3PZpE/BCCtwrxRc/AInKMNX3CdMw11m9STiql12f/Password hashes ! or * indicate inactive accounts not available for logon and are not evaluated. If any interactive user password hash does not begin with $6, this is a finding. |
medium | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-80936-8: Configure Kerberos to use System Crypto Policy | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. Kerberos is supported by crypto policy, but it's configuration may be set up to ignore it. To check that Crypto Policies settings for Kerberos are configured correctly, examine that there is a symlink at /etc/krb5.conf.d/crypto-policies targeting /etc/cypto-policies/back-ends/krb5.config. If the symlink exists, Kerberos is configured to use the system-wide crypto policy settings. | Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Check that the symlink exists and target the correct Kerberos crypto policy, with the following command:
file /etc/krb5.conf.d/crypto-policiesIf command ouput shows the following line, Kerberos is configured to use the system-wide crypto policy. /etc/krb5.conf.d/crypto-policies: symbolic link to /etc/crypto-policies/back-ends/krb5.configIs it the case that the symlink does not exist or points to a different target? |
Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. Kerberos is supported by crypto policy, but it's configuration may be set up to ignore it. To check that Crypto Policies settings for Kerberos are configured correctly, examine that there is a symlink at /etc/krb5.conf.d/crypto-policies targeting /etc/cypto-policies/back-ends/krb5.config. If the symlink exists, Kerberos is configured to use the system-wide crypto policy settings. | high | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-82175-1: Disable Kerberos by removing host keytab | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | Kerberos is not an approved key distribution method for Common Criteria. To prevent using Kerberos by system daemons, remove the Kerberos keytab files, especially /etc/krb5.keytab. | Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Run the following command to see if there are some keytabs
that would potentially allow the use of Kerberos by system daemons.
$ ls -la /etc/*.keytabThe expected result is ls: cannot access '/etc/*.keytab': No such file or directoryIs it the case that a keytab file is present on the system? |
Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | Kerberos is not an approved key distribution method for Common Criteria. To prevent using Kerberos by system daemons, remove the Kerberos keytab files, especially /etc/krb5.keytab. | medium | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-85887-8: Remove the Kerberos Server Package | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | The krb5-server package should be removed if not in use.
Is this system the Kerberos server? If not, remove the package.
The krb5-server package can be removed with the following command:
$ sudo yum erase krb5-serverThe krb5-server RPM is not installed by default on a Red Hat Enterprise Linux 8 system. It is needed only by the Kerberos servers, not by the clients which use Kerberos for authentication. If the system is not intended for use as a Kerberos Server it should be removed. |
Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Run the following command to determine if the krb5-server package is installed: $ rpm -q krb5-serverIs it the case that the package is installed? |
Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | The krb5-server package should be removed if not in use.
Is this system the Kerberos server? If not, remove the package.
The krb5-server package can be removed with the following command:
$ sudo yum erase krb5-serverThe krb5-server RPM is not installed by default on a Red Hat Enterprise Linux 8 system. It is needed only by the Kerberos servers, not by the clients which use Kerberos for authentication. If the system is not intended for use as a Kerberos Server it should be removed. |
medium | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-82931-7: Uninstall krb5-workstation Package | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | The krb5-workstation package can be removed with the following command:
$ sudo yum erase krb5-workstation |
Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Run the following command to determine if the krb5-workstation package is installed:
$ rpm -q krb5-workstationIs it the case that the package is installed? |
Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | The krb5-workstation package can be removed with the following command:
$ sudo yum erase krb5-workstation |
medium | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-82859-0: Ensure rsyslog-gnutls is installed | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | TLS protocol support for rsyslog is installed.
The rsyslog-gnutls package can be installed with the following command:
$ sudo yum install rsyslog-gnutls |
Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Run the following command to determine if the rsyslog-gnutls package is installed:
$ rpm -q rsyslog-gnutlsIs it the case that the package is installed? |
Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | TLS protocol support for rsyslog is installed.
The rsyslog-gnutls package can be installed with the following command:
$ sudo yum install rsyslog-gnutls |
medium | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-85945-4: Set PAM''s Password Hashing Algorithm - password-auth | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | The PAM system service can be configured to only store encrypted representations of passwords.
In /etc/pam.d/password-auth, the password section of the file controls which
PAM modules to execute during a password change.
Set the pam_unix.so module in the password section to include the option
and no other hashing
algorithms as shown below:
password sufficient pam_unix.so other arguments... This will help ensure that new passwords for local users will be stored using the algorithm. |
Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Inspect the password section of /etc/pam.d/password-auth
and ensure that the pam_unix.so module is configured to use the argument
:
$ grep /etc/pam.d/password-authIs it the case that it does not? |
Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | The PAM system service can be configured to only store encrypted representations of passwords.
In /etc/pam.d/password-auth, the password section of the file controls which
PAM modules to execute during a password change.
Set the pam_unix.so module in the password section to include the option
and no other hashing
algorithms as shown below:
password sufficient pam_unix.so other arguments... This will help ensure that new passwords for local users will be stored using the algorithm. |
medium | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-80893-1: Set PAM''s Password Hashing Algorithm | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | The PAM system service can be configured to only store encrypted representations of passwords.
In "/etc/pam.d/system-auth", the password section of the file controls which
PAM modules to execute during a password change.
Set the pam_unix.so module in the password section to include the option
and no other hashing
algorithms as shown below:
password sufficient pam_unix.so other arguments... This will help ensure that new passwords for local users will be stored using the algorithm. |
Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Inspect the password section of /etc/pam.d/system-auth
and ensure that the pam_unix.so module is configured to use the argument
:
$ sudo grep "^password.*pam_unix\.so.*" /etc/pam.d/system-auth password sufficient pam_unix.soIs it the case that "" is missing, or is commented out? |
Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | The PAM system service can be configured to only store encrypted representations of passwords.
In "/etc/pam.d/system-auth", the password section of the file controls which
PAM modules to execute during a password change.
Set the pam_unix.so module in the password section to include the option
and no other hashing
algorithms as shown below:
password sufficient pam_unix.so other arguments... This will help ensure that new passwords for local users will be stored using the algorithm. |
medium | |||
| CCI-000803 | SRG-OS-000120-GPOS-00061 | TBD - Assigned by DISA after STIG release | The operating system must use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | CCE-89707-4: Set Password Hashing Rounds in /etc/login.defs | Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be relied upon to provide confidentiality or integrity, and DoD data may be compromised. Operating systems utilizing encryption are required to use FIPS-compliant mechanisms for authenticating to cryptographic modules. FIPS 140-2/140-3 is the current standard for validating that mechanisms used to access cryptographic modules utilize authentication that meets DoD requirements. This allows for Security Levels 1, 2, 3, or 4 for use on a general purpose computing system. | In /etc/login.defs, ensure SHA_CRYPT_MIN_ROUNDS and
SHA_CRYPT_MAX_ROUNDS has the minimum value of 5000.
For example:
SHA_CRYPT_MIN_ROUNDS 5000 SHA_CRYPT_MAX_ROUNDS 5000Notice that if neither are set, they already have the default value of 5000. If either is set, they must have the minimum value of 5000. |
Applicable - Configurable | Verify the operating system uses mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. If it does not, this is a finding. | Inspect /etc/login.defs and ensure that if eihter SHA_CRYPT_MIN_ROUNDS or SHA_CRYPT_MAX_ROUNDS are set, they must have the minimum value of 5000. Is it the case that it does not? | Configure the operating system to use mechanisms meeting the requirements of applicable federal laws, Executive orders, directives, policies, regulations, standards, and guidance for authentication to a cryptographic module. | In /etc/login.defs, ensure SHA_CRYPT_MIN_ROUNDS and
SHA_CRYPT_MAX_ROUNDS has the minimum value of 5000.
For example:
SHA_CRYPT_MIN_ROUNDS 5000 SHA_CRYPT_MAX_ROUNDS 5000Notice that if neither are set, they already have the default value of 5000. If either is set, they must have the minimum value of 5000. |
medium | |||
| CCI-000804 | SRG-OS-000121-GPOS-00062 | TBD - Assigned by DISA after STIG release | The operating system must uniquely identify and must authenticate non-organizational users (or processes acting on behalf of non-organizational users). | CCE-89903-9: Ensure All Accounts on the System Have Unique User IDs | Lack of authentication and identification enables non-organizational users to gain access to the application or possibly other information systems and provides an opportunity for intruders to compromise resources within the application or information system. Non-organizational users include all information system users other than organizational users, which include organizational employees or individuals the organization deems to have equivalent status of an employee (e.g., contractors and guest researchers). Non-organizational users shall be uniquely identified and authenticated for all accesses other than those accesses explicitly identified and documented by the organization when related to the use of anonymous access. | Change user IDs (UIDs), or delete accounts, so each has a unique name. | Applicable - Configurable | Verify the operating system uniquely identifies and authenticates non-organizational users (or processes acting on behalf of non-organizational users). If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 contains no duplicate User IDs (UIDs) for interactive users.
Check that the operating system contains no duplicate UIDs for interactive users with the following command:
$ sudo awk -F ":" 'list[$3]++{print $1, $3}' /etc/passwd Is it the case that output is produced and the accounts listed are interactive user accounts? |
Configure the operating system to uniquely identify and authenticate non-organizational users (or processes acting on behalf of non-organizational users). | Change user IDs (UIDs), or delete accounts, so each has a unique name. | medium | |||
| CCI-001876 | SRG-OS-000122-GPOS-00063 | TBD - Assigned by DISA after STIG release | The operating system must provide an audit reduction capability that supports on-demand reporting requirements. | CCE-81043-2: Ensure the audit Subsystem is Installed | The ability to generate on-demand reports, including after the audit data has been subjected to audit reduction, greatly facilitates the organization's ability to generate incident reports as needed to better handle larger-scale or more complex security incidents. Audit reduction is a process that manipulates collected audit information and organizes such information in a summary format that is more meaningful to analysts. The report generation capability provided by the application must support on-demand (i.e., customizable, ad hoc, and as-needed) reports. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides an audit reduction capability that supports on-demand reporting requirements. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to provide an audit reduction capability that supports on-demand reporting requirements. | The audit package should be installed. | medium | |||
| CCI-001876 | SRG-OS-000122-GPOS-00063 | TBD - Assigned by DISA after STIG release | The operating system must provide an audit reduction capability that supports on-demand reporting requirements. | CCE-80872-5: Enable auditd Service | The ability to generate on-demand reports, including after the audit data has been subjected to audit reduction, greatly facilitates the organization's ability to generate incident reports as needed to better handle larger-scale or more complex security incidents. Audit reduction is a process that manipulates collected audit information and organizes such information in a summary format that is more meaningful to analysts. The report generation capability provided by the application must support on-demand (i.e., customizable, ad hoc, and as-needed) reports. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides an audit reduction capability that supports on-demand reporting requirements. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to provide an audit reduction capability that supports on-demand reporting requirements. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001682 | SRG-OS-000123-GPOS-00064 | TBD - Assigned by DISA after STIG release | The information system must automatically remove or disable emergency accounts after the crisis is resolved or 72 hours. | CCE-82474-8: Assign Expiration Date to Temporary Accounts | Emergency accounts are privileged accounts that are established in response to crisis situations where the need for rapid account activation is required. Therefore, emergency account activation may bypass normal account authorization processes. If these accounts are automatically disabled, system maintenance during emergencies may not be possible, thus adversely affecting system availability. Emergency accounts are different from infrequently used accounts (i.e., local logon accounts used by the organization's system administrators when network or normal logon/access is not available). Infrequently used accounts are not subject to automatic termination dates. Emergency accounts are accounts created in response to crisis situations, usually for use by maintenance personnel. The automatic expiration or disabling time period may be extended as needed until the crisis is resolved; however, it must not be extended indefinitely. A permanent account should be established for privileged users who need long-term maintenance accounts. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access mechanisms that meet or exceed access control policy requirements. | Temporary accounts are established as part of normal account activation
procedures when there is a need for short-term accounts. In the event
temporary accounts are required, configure the system to
terminate them after a documented time period. For every temporary account, run the following command to set an expiration date on
it, substituting USER and YYYY-MM-DD
appropriately:
$ sudo chage -E YYYY-MM-DD USERYYYY-MM-DD indicates the documented expiration date for the account. For U.S. Government systems, the operating system must be configured to automatically terminate these types of accounts after a period of 72 hours. |
Applicable - Configurable | Verify the operating system is configured such that emergency administrator accounts are automatically removed or disabled within 72 hours. If it is not, this is a finding. | Verify that temporary accounts have been provisioned with an expiration date
of 72 hours. For every temporary account, run the following command to
obtain its account aging and expiration information:
$ sudo chage -l temporary_account_nameVerify each of these accounts has an expiration date set within 72 hours or as documented. Is it the case that any temporary accounts have no expiration date set or do not expire within 72 hours? |
Configure the operating system such that emergency administrator accounts are automatically removed or disabled within 72 hours. | Temporary accounts are established as part of normal account activation
procedures when there is a need for short-term accounts. In the event
temporary accounts are required, configure the system to
terminate them after a documented time period. For every temporary account, run the following command to set an expiration date on
it, substituting USER and YYYY-MM-DD
appropriately:
$ sudo chage -E YYYY-MM-DD USERYYYY-MM-DD indicates the documented expiration date for the account. For U.S. Government systems, the operating system must be configured to automatically terminate these types of accounts after a period of 72 hours. |
medium | |||
| CCI-000877 | SRG-OS-000125-GPOS-00065 | TBD - Assigned by DISA after STIG release | The operating system must employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | CCE-84255-9: Configure OpenSSL library to use TLS Encryption | If maintenance tools are used by unauthorized personnel, they may accidentally or intentionally damage or compromise the system. The act of managing systems and applications includes the ability to access sensitive application information, such as system configuration details, diagnostic information, user information, and potentially sensitive application data. Some maintenance and test tools are either standalone devices with their own operating systems or are applications bundled with an operating system. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. Typically, strong authentication requires authenticators that are resistant to replay attacks and employ multifactor authentication. Strong authenticators include, for example, PKI where certificates are stored on a token protected by a password, passphrase, or biometric. | Crypto Policies are means of enforcing certain cryptographic settings for
selected applications including OpenSSL. OpenSSL is by default configured to
modify its configuration based on currently configured Crypto Policy.
Editing the Crypto Policy back-end is not recommended.
Check the crypto-policies(7) man page and choose a policy that configures TLS
protocol to version 1.2 or higher, for example DEFAULT, FUTURE or FIPS policy.
Or create and apply a custom policy that restricts minimum TLS version to 1.2.
For example for versions prior to crypto-policies-20210617-1.gitc776d3e.el8.noarch
this is expected:
$ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config MinProtocol = TLSv1.2Or for version crypto-policies-20210617-1.gitc776d3e.el8.noarch and newer this is expected: $ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config TLS.MinProtocol = TLSv1.2 DTLS.MinProtocol = DTLSv1.2 |
Applicable - Configurable | Verify the operating system employs strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To verify if the OpenSSL uses defined TLS Crypto Policy, run:
$ grep -P '^(TLS\.)?MinProtocol' /etc/crypto-policies/back-ends/opensslcnf.configand verify that the value is TLSv1.2Is it the case that cryptographic policy for openssl is not configured or is configured incorrectly? |
Configure the operating system to employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | Crypto Policies are means of enforcing certain cryptographic settings for
selected applications including OpenSSL. OpenSSL is by default configured to
modify its configuration based on currently configured Crypto Policy.
Editing the Crypto Policy back-end is not recommended.
Check the crypto-policies(7) man page and choose a policy that configures TLS
protocol to version 1.2 or higher, for example DEFAULT, FUTURE or FIPS policy.
Or create and apply a custom policy that restricts minimum TLS version to 1.2.
For example for versions prior to crypto-policies-20210617-1.gitc776d3e.el8.noarch
this is expected:
$ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config MinProtocol = TLSv1.2Or for version crypto-policies-20210617-1.gitc776d3e.el8.noarch and newer this is expected: $ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config TLS.MinProtocol = TLSv1.2 DTLS.MinProtocol = DTLSv1.2 |
medium | |||
| CCI-000877 | SRG-OS-000125-GPOS-00065 | TBD - Assigned by DISA after STIG release | The operating system must employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | CCE-85902-5: Configure SSH Client to Use FIPS 140-2 Validated Ciphers: openssh.config | If maintenance tools are used by unauthorized personnel, they may accidentally or intentionally damage or compromise the system. The act of managing systems and applications includes the ability to access sensitive application information, such as system configuration details, diagnostic information, user information, and potentially sensitive application data. Some maintenance and test tools are either standalone devices with their own operating systems or are applications bundled with an operating system. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. Typically, strong authentication requires authenticators that are resistant to replay attacks and employ multifactor authentication. Strong authenticators include, for example, PKI where certificates are stored on a token protected by a password, passphrase, or biometric. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
Applicable - Configurable | Verify the operating system employs strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To verify if the OpenSSH client uses defined Cipher suite in the Crypto Policy, run:
$ grep -i ciphers /etc/crypto-policies/back-ends/openssh.configand verify that the line matches: CiphersIs it the case that Crypto Policy for OpenSSH client is not configured correctly? |
Configure the operating system to employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
high | |||
| CCI-000877 | SRG-OS-000125-GPOS-00065 | TBD - Assigned by DISA after STIG release | The operating system must employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | CCE-85897-7: Configure SSH Server to Use FIPS 140-2 Validated Ciphers: opensshserver.config | If maintenance tools are used by unauthorized personnel, they may accidentally or intentionally damage or compromise the system. The act of managing systems and applications includes the ability to access sensitive application information, such as system configuration details, diagnostic information, user information, and potentially sensitive application data. Some maintenance and test tools are either standalone devices with their own operating systems or are applications bundled with an operating system. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. Typically, strong authentication requires authenticators that are resistant to replay attacks and employ multifactor authentication. Strong authenticators include, for example, PKI where certificates are stored on a token protected by a password, passphrase, or biometric. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/opensshserver.config contains the following
text and is not commented out:
-oCiphers= |
Applicable - Configurable | Verify the operating system employs strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To verify if the OpenSSH server uses defined ciphers in the Crypto Policy, run:
$ grep -Po '(-oCiphers=\S+)' /etc/crypto-policies/back-ends/opensshserver.configand verify that the line matches: -oCiphers=Is it the case that Crypto Policy for OpenSSH Server is not configured correctly? |
Configure the operating system to employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/opensshserver.config contains the following
text and is not commented out:
-oCiphers= |
medium | |||
| CCI-000877 | SRG-OS-000125-GPOS-00065 | TBD - Assigned by DISA after STIG release | The operating system must employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | CCE-85870-4: Configure SSH Client to Use FIPS 140-2 Validated MACs: openssh.config | If maintenance tools are used by unauthorized personnel, they may accidentally or intentionally damage or compromise the system. The act of managing systems and applications includes the ability to access sensitive application information, such as system configuration details, diagnostic information, user information, and potentially sensitive application data. Some maintenance and test tools are either standalone devices with their own operating systems or are applications bundled with an operating system. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. Typically, strong authentication requires authenticators that are resistant to replay attacks and employ multifactor authentication. Strong authenticators include, for example, PKI where certificates are stored on a token protected by a password, passphrase, or biometric. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/openssh.config contains the following line and is not commented out: MACs | Applicable - Configurable | Verify the operating system employs strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To verify if the OpenSSH client uses defined MACs in the Crypto Policy, run:
$ grep -i macs /etc/crypto-policies/back-ends/openssh.configand verify that the line matches: MACsIs it the case that Crypto Policy for OpenSSH client is not configured correctly? |
Configure the operating system to employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/openssh.config contains the following line and is not commented out: MACs | medium | |||
| CCI-000877 | SRG-OS-000125-GPOS-00065 | TBD - Assigned by DISA after STIG release | The operating system must employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | CCE-85899-3: Configure SSH Server to Use FIPS 140-2 Validated MACs: opensshserver.config | If maintenance tools are used by unauthorized personnel, they may accidentally or intentionally damage or compromise the system. The act of managing systems and applications includes the ability to access sensitive application information, such as system configuration details, diagnostic information, user information, and potentially sensitive application data. Some maintenance and test tools are either standalone devices with their own operating systems or are applications bundled with an operating system. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. Typically, strong authentication requires authenticators that are resistant to replay attacks and employ multifactor authentication. Strong authenticators include, for example, PKI where certificates are stored on a token protected by a password, passphrase, or biometric. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/opensshserver.config contains the following text and is not commented out: -oMACS= | Applicable - Configurable | Verify the operating system employs strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To verify if the OpenSSH server uses defined MACs in the Crypto Policy, run:
$ grep -Po '(-oMACs=\S+)' /etc/crypto-policies/back-ends/opensshserver.configand verify that the line matches: -oMACS=Is it the case that Crypto Policy for OpenSSH Server is not configured correctly? |
Configure the operating system to employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/opensshserver.config contains the following text and is not commented out: -oMACS= | medium | |||
| CCI-000877 | SRG-OS-000125-GPOS-00065 | TBD - Assigned by DISA after STIG release | The operating system must employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | CCE-84027-2: Set kernel parameter 'crypto.fips_enabled' to 1 | If maintenance tools are used by unauthorized personnel, they may accidentally or intentionally damage or compromise the system. The act of managing systems and applications includes the ability to access sensitive application information, such as system configuration details, diagnostic information, user information, and potentially sensitive application data. Some maintenance and test tools are either standalone devices with their own operating systems or are applications bundled with an operating system. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. Typically, strong authentication requires authenticators that are resistant to replay attacks and employ multifactor authentication. Strong authenticators include, for example, PKI where certificates are stored on a token protected by a password, passphrase, or biometric. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
Applicable - Configurable | Verify the operating system employs strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To verify that kernel parameter 'crypto.fips_enabled' is set properly, run the following command:
sysctl crypto.fips_enabledThe output should contain the following: crypto.fips_enabled = 1Is it the case that crypto.fips_enabled is not 1? |
Configure the operating system to employ strong authenticators in the establishment of nonlocal maintenance and diagnostic sessions. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
high | |||
| CCI-001082 | SRG-OS-000132-GPOS-00067 | TBD - Assigned by DISA after STIG release | The operating system must separate user functionality (including user interface services) from operating system management functionality. | CCE-80913-7: Restrict Access to Kernel Message Buffer | Operating system management functionality includes functions necessary for administration and requires privileged user access. Allowing non-privileged users to access operating system management functionality capabilities increases the risk that non-privileged users may obtain elevated privileges. Operating system management functionality includes functions necessary to administer console, network components, workstations, or servers and typically requires privileged user access. The separation of user functionality from information system management functionality is either physical or logical and is accomplished by using different computers, different central processing units, different instances of the operating system, different network addresses, different TCP/UDP ports, virtualization techniques, combinations of these methods, or other methods, as appropriate. An example of this type of separation is observed in web administrative interfaces that use separate authentication methods for users of any other information system resources. This may include isolating the administrative interface on a different security domain and with additional access controls. | To set the runtime status of the kernel.dmesg_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.dmesg_restrict=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.dmesg_restrict = 1 |
Applicable - Configurable | Verify the operating system separates user functionality (including user interface services) from operating system management functionality. If it does not, this is a finding. | The runtime status of the kernel.dmesg_restrict kernel parameter can be queried
by running the following command:
$ sysctl kernel.dmesg_restrict 1.
Is it the case that the correct value is not returned? |
Configure the operating system to separate user functionality (including user interface services) from operating system management functionality. | To set the runtime status of the kernel.dmesg_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.dmesg_restrict=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.dmesg_restrict = 1 |
low | |||
| CCI-001082 | SRG-OS-000132-GPOS-00067 | TBD - Assigned by DISA after STIG release | The operating system must separate user functionality (including user interface services) from operating system management functionality. | CCE-80915-2: Restrict Exposed Kernel Pointer Addresses Access | Operating system management functionality includes functions necessary for administration and requires privileged user access. Allowing non-privileged users to access operating system management functionality capabilities increases the risk that non-privileged users may obtain elevated privileges. Operating system management functionality includes functions necessary to administer console, network components, workstations, or servers and typically requires privileged user access. The separation of user functionality from information system management functionality is either physical or logical and is accomplished by using different computers, different central processing units, different instances of the operating system, different network addresses, different TCP/UDP ports, virtualization techniques, combinations of these methods, or other methods, as appropriate. An example of this type of separation is observed in web administrative interfaces that use separate authentication methods for users of any other information system resources. This may include isolating the administrative interface on a different security domain and with additional access controls. | To set the runtime status of the kernel.kptr_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.kptr_restrict=To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kptr_restrict = |
Applicable - Configurable | Verify the operating system separates user functionality (including user interface services) from operating system management functionality. If it does not, this is a finding. | The runtime status of the kernel.kptr_restrict kernel parameter can be queried
by running the following command:
$ sysctl kernel.kptr_restrictThe output of the command should indicate either: kernel.kptr_restrict = 1
or:
kernel.kptr_restrict = 2
The output of the command should not indicate:
kernel.kptr_restrict = 0
The preferable way how to assure the runtime compliance is to have
correct persistent configuration, and rebooting the system.
The persistent kernel parameter configuration is performed by specifying the appropriate
assignment in any file located in the /etc/sysctl.ddirectory. Verify that there is not any existing incorrect configuration by executing the following command: $ grep -r '^\s*kernel.kptr_restrict\s*=' /etc/sysctl.conf /etc/sysctl.dThe command should not find any assignments other than: kernel.kptr_restrict = 1 or: kernel.kptr_restrict = 2 Conflicting assignments are not allowed. Is it the case that the kernel.kptr_restrict is not set to 1 or 2 or is configured to be 0? |
Configure the operating system to separate user functionality (including user interface services) from operating system management functionality. | To set the runtime status of the kernel.kptr_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.kptr_restrict=To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kptr_restrict = |
medium | |||
| CCI-001082 | SRG-OS-000132-GPOS-00067 | TBD - Assigned by DISA after STIG release | The operating system must separate user functionality (including user interface services) from operating system management functionality. | CCE-81054-9: Disallow kernel profiling by unprivileged users | Operating system management functionality includes functions necessary for administration and requires privileged user access. Allowing non-privileged users to access operating system management functionality capabilities increases the risk that non-privileged users may obtain elevated privileges. Operating system management functionality includes functions necessary to administer console, network components, workstations, or servers and typically requires privileged user access. The separation of user functionality from information system management functionality is either physical or logical and is accomplished by using different computers, different central processing units, different instances of the operating system, different network addresses, different TCP/UDP ports, virtualization techniques, combinations of these methods, or other methods, as appropriate. An example of this type of separation is observed in web administrative interfaces that use separate authentication methods for users of any other information system resources. This may include isolating the administrative interface on a different security domain and with additional access controls. | To set the runtime status of the kernel.perf_event_paranoid kernel parameter, run the following command: $ sudo sysctl -w kernel.perf_event_paranoid=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.perf_event_paranoid = 2 |
Applicable - Configurable | Verify the operating system separates user functionality (including user interface services) from operating system management functionality. If it does not, this is a finding. | The runtime status of the kernel.perf_event_paranoid kernel parameter can be queried
by running the following command:
$ sysctl kernel.perf_event_paranoid 2.
Is it the case that the correct value is not returned? |
Configure the operating system to separate user functionality (including user interface services) from operating system management functionality. | To set the runtime status of the kernel.perf_event_paranoid kernel parameter, run the following command: $ sudo sysctl -w kernel.perf_event_paranoid=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.perf_event_paranoid = 2 |
low | |||
| CCI-001082 | SRG-OS-000132-GPOS-00067 | TBD - Assigned by DISA after STIG release | The operating system must separate user functionality (including user interface services) from operating system management functionality. | CCE-82974-7: Disable Access to Network bpf() Syscall From Unprivileged Processes | Operating system management functionality includes functions necessary for administration and requires privileged user access. Allowing non-privileged users to access operating system management functionality capabilities increases the risk that non-privileged users may obtain elevated privileges. Operating system management functionality includes functions necessary to administer console, network components, workstations, or servers and typically requires privileged user access. The separation of user functionality from information system management functionality is either physical or logical and is accomplished by using different computers, different central processing units, different instances of the operating system, different network addresses, different TCP/UDP ports, virtualization techniques, combinations of these methods, or other methods, as appropriate. An example of this type of separation is observed in web administrative interfaces that use separate authentication methods for users of any other information system resources. This may include isolating the administrative interface on a different security domain and with additional access controls. | To set the runtime status of the kernel.unprivileged_bpf_disabled kernel parameter, run the following command: $ sudo sysctl -w kernel.unprivileged_bpf_disabled=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.unprivileged_bpf_disabled = 1 |
Applicable - Configurable | Verify the operating system separates user functionality (including user interface services) from operating system management functionality. If it does not, this is a finding. | The runtime status of the kernel.unprivileged_bpf_disabled kernel parameter can be queried
by running the following command:
$ sysctl kernel.unprivileged_bpf_disabled 1.
Is it the case that the correct value is not returned? |
Configure the operating system to separate user functionality (including user interface services) from operating system management functionality. | To set the runtime status of the kernel.unprivileged_bpf_disabled kernel parameter, run the following command: $ sudo sysctl -w kernel.unprivileged_bpf_disabled=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.unprivileged_bpf_disabled = 1 |
medium | |||
| CCI-001082 | SRG-OS-000132-GPOS-00067 | TBD - Assigned by DISA after STIG release | The operating system must separate user functionality (including user interface services) from operating system management functionality. | CCE-80953-3: Restrict usage of ptrace to descendant processes | Operating system management functionality includes functions necessary for administration and requires privileged user access. Allowing non-privileged users to access operating system management functionality capabilities increases the risk that non-privileged users may obtain elevated privileges. Operating system management functionality includes functions necessary to administer console, network components, workstations, or servers and typically requires privileged user access. The separation of user functionality from information system management functionality is either physical or logical and is accomplished by using different computers, different central processing units, different instances of the operating system, different network addresses, different TCP/UDP ports, virtualization techniques, combinations of these methods, or other methods, as appropriate. An example of this type of separation is observed in web administrative interfaces that use separate authentication methods for users of any other information system resources. This may include isolating the administrative interface on a different security domain and with additional access controls. | To set the runtime status of the kernel.yama.ptrace_scope kernel parameter, run the following command: $ sudo sysctl -w kernel.yama.ptrace_scope=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.yama.ptrace_scope = 1 |
Applicable - Configurable | Verify the operating system separates user functionality (including user interface services) from operating system management functionality. If it does not, this is a finding. | The runtime status of the kernel.yama.ptrace_scope kernel parameter can be queried
by running the following command:
$ sysctl kernel.yama.ptrace_scope 1.
Is it the case that the correct value is not returned? |
Configure the operating system to separate user functionality (including user interface services) from operating system management functionality. | To set the runtime status of the kernel.yama.ptrace_scope kernel parameter, run the following command: $ sudo sysctl -w kernel.yama.ptrace_scope=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.yama.ptrace_scope = 1 |
medium | |||
| CCI-001084 | SRG-OS-000134-GPOS-00068 | TBD - Assigned by DISA after STIG release | The operating system must isolate security functions from nonsecurity functions. | CCE-80944-2: Enable page allocator poisoning | An isolation boundary provides access control and protects the integrity of the hardware, software, and firmware that perform security functions. Security functions are the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Operating systems implement code separation (i.e., separation of security functions from nonsecurity functions) in a number of ways, including through the provision of security kernels via processor rings or processor modes. For non-kernel code, security function isolation is often achieved through file system protections that serve to protect the code on disk and address space protections that protect executing code. Developers and implementers can increase the assurance in security functions by employing well-defined security policy models; structured, disciplined, and rigorous hardware and software development techniques; and sound system/security engineering principles. Implementation may include isolation of memory space and libraries. Operating systems restrict access to security functions through the use of access control mechanisms and by implementing least privilege capabilities. | To enable poisoning of free pages,
add the argument page_poison=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that page_poison=1 is added as a kernel command line
argument to newly installed kernels, add page_poison=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... page_poison=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="page_poison=1" |
Applicable - Configurable | Verify the operating system isolates security functions from nonsecurity functions. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes page_poison=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*page_poison=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*page_poison=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'page_poison=1'The command should not return any output. Is it the case that page allocator poisoning is not enabled? |
Configure the operating system to isolate security functions from nonsecurity functions. | To enable poisoning of free pages,
add the argument page_poison=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that page_poison=1 is added as a kernel command line
argument to newly installed kernels, add page_poison=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... page_poison=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="page_poison=1" |
medium | |||
| CCI-001084 | SRG-OS-000134-GPOS-00068 | TBD - Assigned by DISA after STIG release | The operating system must isolate security functions from nonsecurity functions. | CCE-80945-9: Enable SLUB/SLAB allocator poisoning | An isolation boundary provides access control and protects the integrity of the hardware, software, and firmware that perform security functions. Security functions are the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Operating systems implement code separation (i.e., separation of security functions from nonsecurity functions) in a number of ways, including through the provision of security kernels via processor rings or processor modes. For non-kernel code, security function isolation is often achieved through file system protections that serve to protect the code on disk and address space protections that protect executing code. Developers and implementers can increase the assurance in security functions by employing well-defined security policy models; structured, disciplined, and rigorous hardware and software development techniques; and sound system/security engineering principles. Implementation may include isolation of memory space and libraries. Operating systems restrict access to security functions through the use of access control mechanisms and by implementing least privilege capabilities. | To enable poisoning of SLUB/SLAB objects,
add the argument slub_debug= to the default
GRUB 2 command line for the Linux operating system.
To ensure that slub_debug= is added as a kernel command line
argument to newly installed kernels, add slub_debug= to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... slub_debug= ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="slub_debug=" |
Applicable - Configurable | Verify the operating system isolates security functions from nonsecurity functions. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes slub_debug=,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*slub_debug=.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*slub_debug=.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'slub_debug='The command should not return any output. Is it the case that SLUB/SLAB poisoning is not enabled? |
Configure the operating system to isolate security functions from nonsecurity functions. | To enable poisoning of SLUB/SLAB objects,
add the argument slub_debug= to the default
GRUB 2 command line for the Linux operating system.
To ensure that slub_debug= is added as a kernel command line
argument to newly installed kernels, add slub_debug= to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... slub_debug= ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="slub_debug=" |
medium | |||
| CCI-001084 | SRG-OS-000134-GPOS-00068 | TBD - Assigned by DISA after STIG release | The operating system must isolate security functions from nonsecurity functions. | CCE-80946-7: Disable vsyscalls | An isolation boundary provides access control and protects the integrity of the hardware, software, and firmware that perform security functions. Security functions are the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Operating systems implement code separation (i.e., separation of security functions from nonsecurity functions) in a number of ways, including through the provision of security kernels via processor rings or processor modes. For non-kernel code, security function isolation is often achieved through file system protections that serve to protect the code on disk and address space protections that protect executing code. Developers and implementers can increase the assurance in security functions by employing well-defined security policy models; structured, disciplined, and rigorous hardware and software development techniques; and sound system/security engineering principles. Implementation may include isolation of memory space and libraries. Operating systems restrict access to security functions through the use of access control mechanisms and by implementing least privilege capabilities. | To disable use of virtual syscalls,
add the argument vsyscall=none to the default
GRUB 2 command line for the Linux operating system.
To ensure that vsyscall=none is added as a kernel command line
argument to newly installed kernels, add vsyscall=none to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... vsyscall=none ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="vsyscall=none" |
Applicable - Configurable | Verify the operating system isolates security functions from nonsecurity functions. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes vsyscall=none,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*vsyscall=none.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*vsyscall=none.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'vsyscall=none'The command should not return any output. Is it the case that vsyscalls are enabled? |
Configure the operating system to isolate security functions from nonsecurity functions. | To disable use of virtual syscalls,
add the argument vsyscall=none to the default
GRUB 2 command line for the Linux operating system.
To ensure that vsyscall=none is added as a kernel command line
argument to newly installed kernels, add vsyscall=none to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... vsyscall=none ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="vsyscall=none" |
medium | |||
| CCI-001084 | SRG-OS-000134-GPOS-00068 | TBD - Assigned by DISA after STIG release | The operating system must isolate security functions from nonsecurity functions. | CCE-82976-2: Install policycoreutils Package | An isolation boundary provides access control and protects the integrity of the hardware, software, and firmware that perform security functions. Security functions are the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Operating systems implement code separation (i.e., separation of security functions from nonsecurity functions) in a number of ways, including through the provision of security kernels via processor rings or processor modes. For non-kernel code, security function isolation is often achieved through file system protections that serve to protect the code on disk and address space protections that protect executing code. Developers and implementers can increase the assurance in security functions by employing well-defined security policy models; structured, disciplined, and rigorous hardware and software development techniques; and sound system/security engineering principles. Implementation may include isolation of memory space and libraries. Operating systems restrict access to security functions through the use of access control mechanisms and by implementing least privilege capabilities. | The policycoreutils package can be installed with the following command:
$ sudo yum install policycoreutils |
Applicable - Configurable | Verify the operating system isolates security functions from nonsecurity functions. If it does not, this is a finding. | Run the following command to determine if the policycoreutils package is installed: $ rpm -q policycoreutilsIs it the case that the policycoreutils package is not installed? |
Configure the operating system to isolate security functions from nonsecurity functions. | The policycoreutils package can be installed with the following command:
$ sudo yum install policycoreutils |
low | |||
| CCI-001084 | SRG-OS-000134-GPOS-00068 | TBD - Assigned by DISA after STIG release | The operating system must isolate security functions from nonsecurity functions. | CCE-80869-1: Ensure SELinux State is Enforcing | An isolation boundary provides access control and protects the integrity of the hardware, software, and firmware that perform security functions. Security functions are the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Operating systems implement code separation (i.e., separation of security functions from nonsecurity functions) in a number of ways, including through the provision of security kernels via processor rings or processor modes. For non-kernel code, security function isolation is often achieved through file system protections that serve to protect the code on disk and address space protections that protect executing code. Developers and implementers can increase the assurance in security functions by employing well-defined security policy models; structured, disciplined, and rigorous hardware and software development techniques; and sound system/security engineering principles. Implementation may include isolation of memory space and libraries. Operating systems restrict access to security functions through the use of access control mechanisms and by implementing least privilege capabilities. | The SELinux state should be set to at
system boot time. In the file /etc/selinux/config, add or correct the
following line to configure the system to boot into enforcing mode:
SELINUX= |
Applicable - Configurable | Verify the operating system isolates security functions from nonsecurity functions. If it does not, this is a finding. | Ensure that Red Hat Enterprise Linux 8 verifies correct operation of security functions. Check if "SELinux" is active and in "" mode with the following command: $ sudo getenforce Is it the case that SELINUX is not set to enforcing? | Configure the operating system to isolate security functions from nonsecurity functions. | The SELinux state should be set to at
system boot time. In the file /etc/selinux/config, add or correct the
following line to configure the system to boot into enforcing mode:
SELINUX= |
high | |||
| CCI-001090 | SRG-OS-000138-GPOS-00069 | TBD - Assigned by DISA after STIG release | Operating systems must prevent unauthorized and unintended information transfer via shared system resources. | CCE-83375-6: Ensure All World-Writable Directories Are Owned by root User | Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of information, produced by the actions of prior users/roles (or the actions of processes acting on behalf of prior users/roles) from being available to any current users/roles (or current processes) that obtain access to shared system resources (e.g., registers, main memory, hard disks) after those resources have been released back to information systems. The control of information in shared resources is also commonly referred to as object reuse and residual information protection. This requirement generally applies to the design of an information technology product, but it can also apply to the configuration of particular information system components that are, or use, such products. This can be verified by acceptance/validation processes in DoD or other government agencies. There may be shared resources with configurable protections (e.g., files in storage) that may be assessed on specific information system components. | All directories in local partitions which are world-writable should be owned by root. If any world-writable directories are not owned by root, this should be investigated. Following this, the files should be deleted or assigned to root user. | Applicable - Configurable | Verify operating systems prevents unauthorized and unintended information transfer via shared system resources. If it does not, this is a finding. | The following command will discover and print world-writable directories that
are not owned by root. Run it once for each local partition PART:
$ sudo find PART -xdev -type d -perm -0002 -uid +0 -printIs it the case that there are world-writable directories not owned by root? |
Configure operating systems to prevent unauthorized and unintended information transfer via shared system resources. | All directories in local partitions which are world-writable should be owned by root. If any world-writable directories are not owned by root, this should be investigated. Following this, the files should be deleted or assigned to root user. | medium | |||
| CCI-001090 | SRG-OS-000138-GPOS-00069 | TBD - Assigned by DISA after STIG release | Operating systems must prevent unauthorized and unintended information transfer via shared system resources. | CCE-80783-4: Verify that All World-Writable Directories Have Sticky Bits Set | Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of information, produced by the actions of prior users/roles (or the actions of processes acting on behalf of prior users/roles) from being available to any current users/roles (or current processes) that obtain access to shared system resources (e.g., registers, main memory, hard disks) after those resources have been released back to information systems. The control of information in shared resources is also commonly referred to as object reuse and residual information protection. This requirement generally applies to the design of an information technology product, but it can also apply to the configuration of particular information system components that are, or use, such products. This can be verified by acceptance/validation processes in DoD or other government agencies. There may be shared resources with configurable protections (e.g., files in storage) that may be assessed on specific information system components. | When the so-called 'sticky bit' is set on a directory, only the owner of a given file may
remove that file from the directory. Without the sticky bit, any user with write access to a
directory may remove any file in the directory. Setting the sticky bit prevents users from
removing each other's files. In cases where there is no reason for a directory to be
world-writable, a better solution is to remove that permission rather than to set the sticky
bit. However, if a directory is used by a particular application, consult that application's
documentation instead of blindly changing modes.
To set the sticky bit on a world-writable directory DIR, run the following command: $ sudo chmod +t DIR |
Applicable - Configurable | Verify operating systems prevents unauthorized and unintended information transfer via shared system resources. If it does not, this is a finding. | To find world-writable directories that lack the sticky bit, run the following command:
$ sudo find / -type d \( -perm -0002 -a ! -perm -1000 \) -print 2>/dev/nullfixtext: |- Configure all world-writable directories to have the sticky bit set to prevent unauthorized and unintended information transferred via shared system resources. Set the sticky bit on all world-writable directories using the command, replace "[World-Writable Directory]" with any directory path missing the sticky bit: $ chmod a+t [World-Writable Directory] srg_requirement: A sticky bit must be set on all Red Hat Enterprise Linux 8 public directories to prevent unauthorized and unintended information transferred via shared system resources. Is it the case that any world-writable directories are missing the sticky bit? |
Configure operating systems to prevent unauthorized and unintended information transfer via shared system resources. | When the so-called 'sticky bit' is set on a directory, only the owner of a given file may
remove that file from the directory. Without the sticky bit, any user with write access to a
directory may remove any file in the directory. Setting the sticky bit prevents users from
removing each other's files. In cases where there is no reason for a directory to be
world-writable, a better solution is to remove that permission rather than to set the sticky
bit. However, if a directory is used by a particular application, consult that application's
documentation instead of blindly changing modes.
To set the sticky bit on a world-writable directory DIR, run the following command: $ sudo chmod +t DIR |
medium | |||
| CCI-001090 | SRG-OS-000138-GPOS-00069 | TBD - Assigned by DISA after STIG release | Operating systems must prevent unauthorized and unintended information transfer via shared system resources. | CCE-80913-7: Restrict Access to Kernel Message Buffer | Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of information, produced by the actions of prior users/roles (or the actions of processes acting on behalf of prior users/roles) from being available to any current users/roles (or current processes) that obtain access to shared system resources (e.g., registers, main memory, hard disks) after those resources have been released back to information systems. The control of information in shared resources is also commonly referred to as object reuse and residual information protection. This requirement generally applies to the design of an information technology product, but it can also apply to the configuration of particular information system components that are, or use, such products. This can be verified by acceptance/validation processes in DoD or other government agencies. There may be shared resources with configurable protections (e.g., files in storage) that may be assessed on specific information system components. | To set the runtime status of the kernel.dmesg_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.dmesg_restrict=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.dmesg_restrict = 1 |
Applicable - Configurable | Verify operating systems prevents unauthorized and unintended information transfer via shared system resources. If it does not, this is a finding. | The runtime status of the kernel.dmesg_restrict kernel parameter can be queried
by running the following command:
$ sysctl kernel.dmesg_restrict 1.
Is it the case that the correct value is not returned? |
Configure operating systems to prevent unauthorized and unintended information transfer via shared system resources. | To set the runtime status of the kernel.dmesg_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.dmesg_restrict=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.dmesg_restrict = 1 |
low | |||
| CCI-001090 | SRG-OS-000138-GPOS-00069 | TBD - Assigned by DISA after STIG release | Operating systems must prevent unauthorized and unintended information transfer via shared system resources. | CCE-81054-9: Disallow kernel profiling by unprivileged users | Preventing unauthorized information transfers mitigates the risk of information, including encrypted representations of information, produced by the actions of prior users/roles (or the actions of processes acting on behalf of prior users/roles) from being available to any current users/roles (or current processes) that obtain access to shared system resources (e.g., registers, main memory, hard disks) after those resources have been released back to information systems. The control of information in shared resources is also commonly referred to as object reuse and residual information protection. This requirement generally applies to the design of an information technology product, but it can also apply to the configuration of particular information system components that are, or use, such products. This can be verified by acceptance/validation processes in DoD or other government agencies. There may be shared resources with configurable protections (e.g., files in storage) that may be assessed on specific information system components. | To set the runtime status of the kernel.perf_event_paranoid kernel parameter, run the following command: $ sudo sysctl -w kernel.perf_event_paranoid=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.perf_event_paranoid = 2 |
Applicable - Configurable | Verify operating systems prevents unauthorized and unintended information transfer via shared system resources. If it does not, this is a finding. | The runtime status of the kernel.perf_event_paranoid kernel parameter can be queried
by running the following command:
$ sysctl kernel.perf_event_paranoid 2.
Is it the case that the correct value is not returned? |
Configure operating systems to prevent unauthorized and unintended information transfer via shared system resources. | To set the runtime status of the kernel.perf_event_paranoid kernel parameter, run the following command: $ sudo sysctl -w kernel.perf_event_paranoid=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.perf_event_paranoid = 2 |
low | |||
| V-56861 | SRG-OS-000142-GPOS-00071 | TBD - Assigned by DISA after STIG release | The operating system must manage excess capacity, bandwidth, or other redundancy to limit the effects of information flooding types of Denial of Service (DoS) attacks. | DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. Managing excess capacity ensures that sufficient capacity is available to counter flooding attacks. Employing increased capacity and service redundancy may reduce the susceptibility to some DoS attacks. Managing excess capacity may include, for example, establishing selected usage priorities, quotas, or partitioning. | |||||||||||
| CCI-001133 | SRG-OS-000163-GPOS-00072 | TBD - Assigned by DISA after STIG release | The operating system must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. | CCE-90784-0: Configure Logind to terminate idle sessions after certain time of inactivity | Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element. Terminating network connections associated with communications sessions includes, for example, de-allocating associated TCP/IP address/port pairs at the operating system level, and de-allocating networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. This does not mean that the operating system terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session. | To configure logind service to terminate inactive user sessions
after seconds, edit the file
/etc/systemd/logind.conf. Ensure that there is a section
[Login]which contains the configuration StopIdleSessionSec=. |
Applicable - Configurable | Verify the operating system terminates all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. If it does not, this is a finding. | Display the contents of the file /etc/systemd/logind.conf:
cat /etc/systemd/logind.confEnsure that there is a section [login] which contains the configuration StopIdleSessionSec=. Is it the case that the option is not configured? |
Configure the operating system to terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. | To configure logind service to terminate inactive user sessions
after seconds, edit the file
/etc/systemd/logind.conf. Ensure that there is a section
[Login]which contains the configuration StopIdleSessionSec=. |
medium | |||
| CCI-001133 | SRG-OS-000163-GPOS-00072 | TBD - Assigned by DISA after STIG release | The operating system must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. | CCE-80906-1: Set SSH Client Alive Interval | Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element. Terminating network connections associated with communications sessions includes, for example, de-allocating associated TCP/IP address/port pairs at the operating system level, and de-allocating networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. This does not mean that the operating system terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session. | SSH allows administrators to set a network responsiveness timeout interval.
After this interval has passed, the unresponsive client will be automatically logged out.
To set this timeout interval, edit the following line in /etc/ssh/sshd_config as follows: ClientAliveInterval The timeout interval is given in seconds. For example, have a timeout of 10 minutes, set interval to 600. If a shorter timeout has already been set for the login shell, that value will preempt any SSH setting made in /etc/ssh/sshd_config. Keep in mind that some processes may stop SSH from correctly detecting that the user is idle. |
Applicable - Configurable | Verify the operating system terminates all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. If it does not, this is a finding. | Run the following command to see what the timeout interval is:
$ sudo grep ClientAliveInterval /etc/ssh/sshd_configIf properly configured, the output should be: ClientAliveIntervalIs it the case that it is commented out or not configured properly? |
Configure the operating system to terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. | SSH allows administrators to set a network responsiveness timeout interval.
After this interval has passed, the unresponsive client will be automatically logged out.
To set this timeout interval, edit the following line in /etc/ssh/sshd_config as follows: ClientAliveInterval The timeout interval is given in seconds. For example, have a timeout of 10 minutes, set interval to 600. If a shorter timeout has already been set for the login shell, that value will preempt any SSH setting made in /etc/ssh/sshd_config. Keep in mind that some processes may stop SSH from correctly detecting that the user is idle. |
medium | |||
| CCI-001133 | SRG-OS-000163-GPOS-00072 | TBD - Assigned by DISA after STIG release | The operating system must terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. | CCE-80907-9: Set SSH Client Alive Count Max | Terminating an idle session within a short time period reduces the window of opportunity for unauthorized personnel to take control of a management session enabled on the console or console port that has been left unattended. In addition, quickly terminating an idle session will also free up resources committed by the managed network element. Terminating network connections associated with communications sessions includes, for example, de-allocating associated TCP/IP address/port pairs at the operating system level, and de-allocating networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. This does not mean that the operating system terminates all sessions or network access; it only ends the inactive session and releases the resources associated with that session. | The SSH server sends at most ClientAliveCountMax messages during a SSH session and waits for a response from the SSH client. The option ClientAliveInterval configures timeout after each ClientAliveCountMax message. If the SSH server does not receive a response from the client, then the connection is considered unresponsive and terminated. For SSH earlier than v8.2, a ClientAliveCountMax value of 0 causes a timeout precisely when the ClientAliveInterval is set. Starting with v8.2, a value of 0 disables the timeout functionality completely. If the option is set to a number greater than 0, then the session will be disconnected after ClientAliveInterval * ClientAliveCountMax seconds without receiving a keep alive message. | Applicable - Configurable | Verify the operating system terminates all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. If it does not, this is a finding. | To ensure ClientAliveInterval is set correctly, run the following command:
$ sudo grep ClientAliveCountMax /etc/ssh/sshd_configIf properly configured, the output should be: ClientAliveCountMaxFor SSH earlier than v8.2, a ClientAliveCountMax value of 0 causes a timeout precisely when the ClientAliveInterval is set. Starting with v8.2, a value of 0 disables the timeout functionality completely. If the option is set to a number greater than 0, then the session will be disconnected after ClientAliveInterval * ClientAliveCountMax seconds without receiving a keep alive message. Is it the case that it is commented out or not configured properly? |
Configure the operating system to terminate all network connections associated with a communications session at the end of the session, or as follows: for in-band management sessions (privileged sessions), the session must be terminated after 10 minutes of inactivity; and for user sessions (non-privileged session), the session must be terminated after 15 minutes of inactivity, except to fulfill documented and validated mission requirements. | The SSH server sends at most ClientAliveCountMax messages during a SSH session and waits for a response from the SSH client. The option ClientAliveInterval configures timeout after each ClientAliveCountMax message. If the SSH server does not receive a response from the client, then the connection is considered unresponsive and terminated. For SSH earlier than v8.2, a ClientAliveCountMax value of 0 causes a timeout precisely when the ClientAliveInterval is set. Starting with v8.2, a value of 0 disables the timeout functionality completely. If the option is set to a number greater than 0, then the session will be disconnected after ClientAliveInterval * ClientAliveCountMax seconds without receiving a keep alive message. | medium | |||
| V-56869 | SRG-OS-000184-GPOS-00078 | TBD - Assigned by DISA after STIG release | The operating system must fail to a secure state if system initialization fails, shutdown fails, or aborts fail. | Failure to a known safe state helps prevent systems from failing to a state that may cause loss of data or unauthorized access to system resources. Operating systems that fail suddenly and with no incorporated failure state planning may leave the system available but with a reduced security protection capability. Preserving operating system state information also facilitates system restart and return to the operational mode of the organization with less disruption to mission-essential processes. Abort refers to stopping a program or function before it has finished naturally. The term abort refers to both requested and unexpected terminations. | |||||||||||
| CCI-001199 | SRG-OS-000185-GPOS-00079 | TBD - Assigned by DISA after STIG release | The operating system must protect the confidentiality and integrity of all information at rest. | CCE-80789-1: Encrypt Partitions | Information at rest refers to the state of information when it is located on a secondary storage device (e.g., disk drive and tape drive, when used for backups) within an operating system. This requirement addresses protection of user-generated data, as well as operating system-specific configuration data. Organizations may choose to employ different mechanisms to achieve confidentiality and integrity protections, as appropriate, in accordance with the security category and/or classification of the information. | Red Hat Enterprise Linux 8 natively supports partition encryption through the
Linux Unified Key Setup-on-disk-format (LUKS) technology. The easiest way to
encrypt a partition is during installation time.
For manual installations, select the Encrypt checkbox during partition creation to encrypt the partition. When this option is selected the system will prompt for a passphrase to use in decrypting the partition. The passphrase will subsequently need to be entered manually every time the system boots. For automated/unattended installations, it is possible to use Kickstart by adding the --encrypted and --passphrase= options to the definition of each partition to be encrypted. For example, the following line would encrypt the root partition: part / --fstype=ext4 --size=100 --onpart=hda1 --encrypted --passphrase=PASSPHRASEAny PASSPHRASE is stored in the Kickstart in plaintext, and the Kickstart must then be protected accordingly. Omitting the --passphrase= option from the partition definition will cause the installer to pause and interactively ask for the passphrase during installation. By default, the Anaconda installer uses aes-xts-plain64 cipher with a minimum 512 bit key size which should be compatible with FIPS enabled. Detailed information on encrypting partitions using LUKS or LUKS ciphers can be found on the Red Hat Enterprise Linux 8 Documentation web site: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/security_hardening/encrypting-block-devices-using-luks_security-hardening . |
Applicable - Configurable | Verify the operating system protects the confidentiality and integrity of all information at rest. If it does not, this is a finding. | Check the system partitions to determine if they are encrypted with the following command:
blkid Output will be similar to: /dev/sda1: UUID=" ab12c3de-4f56-789a-8f33-3850cc8ce3a2 " TYPE="crypto_LUKS" /dev/sda2: UUID=" bc98d7ef-6g54-321h-1d24-9870de2ge1a2 " TYPE="crypto_LUKS" The boot partition and pseudo-file systems, such as /proc, /sys, and tmpfs, are not required to use disk encryption and are not a finding. Is it the case that partitions do not have a type of crypto_LUKS? |
Configure the operating system to protect the confidentiality and integrity of all information at rest. | Red Hat Enterprise Linux 8 natively supports partition encryption through the
Linux Unified Key Setup-on-disk-format (LUKS) technology. The easiest way to
encrypt a partition is during installation time.
For manual installations, select the Encrypt checkbox during partition creation to encrypt the partition. When this option is selected the system will prompt for a passphrase to use in decrypting the partition. The passphrase will subsequently need to be entered manually every time the system boots. For automated/unattended installations, it is possible to use Kickstart by adding the --encrypted and --passphrase= options to the definition of each partition to be encrypted. For example, the following line would encrypt the root partition: part / --fstype=ext4 --size=100 --onpart=hda1 --encrypted --passphrase=PASSPHRASEAny PASSPHRASE is stored in the Kickstart in plaintext, and the Kickstart must then be protected accordingly. Omitting the --passphrase= option from the partition definition will cause the installer to pause and interactively ask for the passphrase during installation. By default, the Anaconda installer uses aes-xts-plain64 cipher with a minimum 512 bit key size which should be compatible with FIPS enabled. Detailed information on encrypting partitions using LUKS or LUKS ciphers can be found on the Red Hat Enterprise Linux 8 Documentation web site: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/security_hardening/encrypting-block-devices-using-luks_security-hardening . |
high | |||
| V-56887 | SRG-OS-000205-GPOS-00083 | TBD - Assigned by DISA after STIG release | The operating system must generate error messages that provide information necessary for corrective actions without revealing information that could be exploited by adversaries. | Any operating system providing too much information in error messages risks compromising the data and security of the structure, and content of error messages needs to be carefully considered by the organization. Organizations carefully consider the structure/content of error messages. The extent to which information systems are able to identify and handle error conditions is guided by organizational policy and operational requirements. Information that could be exploited by adversaries includes, for example, erroneous logon attempts with passwords entered by mistake as the username, mission/business information that can be derived from (if not stated explicitly by) information recorded, and personal information, such as account numbers, social security numbers, and credit card numbers. | |||||||||||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-88225-8: System Audit Directories Must Be Group Owned By Root | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. | All audit directories must be group owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit, run the command:
$ sudo chgrp root /var/log/auditIf log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit directories to this specific group. |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | Determine the audit log group by running the following command: $ sudo grep -P '^[ ]*log_group[ ]+=.*$' /etc/audit/auditd.conf Then, check that all directories within the /var/log/audit directory are owned by the group specified as log_group or by root if the log_group is not specified. Run the following command: $ sudo find /var/log/audit -type d -printf "%p %g\n" All listed directories must be owned by the log_group or by root if the log_group is not specified. Is it the case that there is a directory owned by different group? | Configure the operating system to reveal error messages only to authorized users. | All audit directories must be group owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit, run the command:
$ sudo chgrp root /var/log/auditIf log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit directories to this specific group. |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-88226-6: System Audit Directories Must Be Owned By Root | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. | All audit directories must be owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit, run the command:
$ sudo chown root /var/log/audit |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | Determine where the audit logs are stored with the following command: $ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.log Determine the owner of the audit log directory by using the output of the above command (default: "/var/log/audit/"). Run the following command with the correct audit log directory path: $ sudo ls -ld /var/log/audit drwx------ 2 root root 23 Jun 11 11:56 /var/log/audit The audit log directory must be owned by "root" Is it the case that the directory is not owned by root? | Configure the operating system to reveal error messages only to authorized users. | All audit directories must be owned by root user. By default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit, run the command:
$ sudo chown root /var/log/audit |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-88227-4: System Audit Logs Must Be Group Owned By Root | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. | All audit logs must be group owned by root user. The path for audit log can
be configured via log_file parameter in /etc/audit/auditd.confor, by default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit/*, run the command:
$ sudo chgrp root /var/log/audit/*If log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit logs to this specific group. |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | Check group owners of the system audit logs.
First, determine where the audit log file is located.
$ sudo grep -iw ^log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logThe log_file option specifies the audit log file path. If the log_file option isn't defined, check all files within /var/log/audit directory. Then, determine the audit log group by running the following command: $ sudo grep -P '^[ ]*log_group[ ]+=.*$' /etc/audit/auditd.confThen, check that the audit log file is owned by the correct group. Run the following command to display the owner of the audit log file: $ sudo stat -c "%n %G" log_fileThe audit log file must be owned by the log_group or by root if the log_group is not specified. Is it the case that audit log files are owned by incorrect group? |
Configure the operating system to reveal error messages only to authorized users. | All audit logs must be group owned by root user. The path for audit log can
be configured via log_file parameter in /etc/audit/auditd.confor, by default, the path for audit log is /var/log/audit/. To properly set the group owner of /var/log/audit/*, run the command:
$ sudo chgrp root /var/log/audit/*If log_group in /etc/audit/auditd.conf is set to a group other than the root group account, change the group ownership of the audit logs to this specific group. |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-83659-3: Verify Group Who Owns /var/log Directory | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. | To properly set the group owner of /var/log, run the command: $ sudo chgrp root /var/log |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | To check the group ownership of /var/log,
run the command:
$ ls -lL /var/logIf properly configured, the output should indicate the following group-owner: root Is it the case that /var/log does not have a group owner of root? |
Configure the operating system to reveal error messages only to authorized users. | To properly set the group owner of /var/log, run the command: $ sudo chgrp root /var/log |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-83660-1: Verify Group Who Owns /var/log/messages File | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. | To properly set the group owner of /var/log/messages, run the command: $ sudo chgrp root /var/log/messages |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | To check the group ownership of /var/log/messages,
run the command:
$ ls -lL /var/log/messagesIf properly configured, the output should indicate the following group-owner: root Is it the case that /var/log/messages does not have a group owner of root? |
Configure the operating system to reveal error messages only to authorized users. | To properly set the group owner of /var/log/messages, run the command: $ sudo chgrp root /var/log/messages |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-83661-9: Verify User Who Owns /var/log Directory | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. | To properly set the owner of /var/log, run the command: $ sudo chown root /var/log |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | To check the ownership of /var/log,
run the command:
$ ls -lL /var/logIf properly configured, the output should indicate the following owner: root Is it the case that /var/log does not have an owner of root? |
Configure the operating system to reveal error messages only to authorized users. | To properly set the owner of /var/log, run the command: $ sudo chown root /var/log |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-83662-7: Verify User Who Owns /var/log/messages File | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. | To properly set the owner of /var/log/messages, run the command: $ sudo chown root /var/log/messages |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | To check the ownership of /var/log/messages,
run the command:
$ ls -lL /var/log/messagesIf properly configured, the output should indicate the following owner: root Is it the case that /var/log/messages does not have an owner of root? |
Configure the operating system to reveal error messages only to authorized users. | To properly set the owner of /var/log/messages, run the command: $ sudo chown root /var/log/messages |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-88228-2: System Audit Logs Must Be Owned By Root | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. | All audit logs must be owned by root user. The path for audit log can be
configured via log_file parameter in /etc/audit/auditd.confor by default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit/*, run the command:
$ sudo chown root /var/log/audit/* |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | Verify the audit logs are owned by "root". First, determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logUsing the location of the audit log file, determine if the audit log is owned by "root" using the following command: $ sudo stat -c "%n %U" /var/log/audit/audit.logAudit logs must be owned by user root. If the log_file isn't defined in /etc/audit/auditd.conf, check all files in /var/log/audit/ directory instead. Is it the case that the audit log is not owned by root? |
Configure the operating system to reveal error messages only to authorized users. | All audit logs must be owned by root user. The path for audit log can be
configured via log_file parameter in /etc/audit/auditd.confor by default, the path for audit log is /var/log/audit/. To properly set the owner of /var/log/audit/*, run the command:
$ sudo chown root /var/log/audit/* |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-83663-5: Verify Permissions on /var/log Directory | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. |
To properly set the permissions of /var/log, run the command:
$ sudo chmod 0755 /var/log |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | To check the permissions of /var/log,
run the command:
$ ls -l /var/logIf properly configured, the output should indicate the following permissions: drwxr-xr-x Is it the case that /var/log does not have unix mode drwxr-xr-x? |
Configure the operating system to reveal error messages only to authorized users. |
To properly set the permissions of /var/log, run the command:
$ sudo chmod 0755 /var/log |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-80819-6: System Audit Logs Must Have Mode 0640 or Less Permissive | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. |
Determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0600 audit_log_fileBy default, audit_log_file is "/var/log/audit/audit.log". |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | Run the following command to check the mode of the system audit logs:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file=/var/log/audit/audit.log $ sudo stat -c "%n %a" /var/log/audit/* $ sudo ls -l /var/log/auditAudit logs must be mode 0640 or less permissive. Is it the case that any permissions are more permissive? |
Configure the operating system to reveal error messages only to authorized users. |
Determine where the audit logs are stored with the following command:
$ sudo grep -iw log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logConfigure the audit log to be protected from unauthorized read access by setting the correct permissive mode with the following command: $ sudo chmod 0600 audit_log_fileBy default, audit_log_file is "/var/log/audit/audit.log". |
medium | |||
| CCI-001314 | SRG-OS-000206-GPOS-00084 | TBD - Assigned by DISA after STIG release | The operating system must reveal error messages only to authorized users. | CCE-83665-0: Verify Permissions on /var/log/messages File | Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the operating system or platform. Additionally, Personally Identifiable Information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements. |
To properly set the permissions of /var/log/messages, run the command:
$ sudo chmod 0640 /var/log/messages |
Applicable - Configurable | Verify the operating system reveals error messages only to authorized users. If it does not, this is a finding. | To check the permissions of /var/log/messages,
run the command:
$ ls -l /var/log/messagesIf properly configured, the output should indicate the following permissions: -rw-r----- Is it the case that /var/log/messages does not have unix mode -rw-r-----? |
Configure the operating system to reveal error messages only to authorized users. |
To properly set the permissions of /var/log/messages, run the command:
$ sudo chmod 0640 /var/log/messages |
medium | |||
| CCI-001384 | SRG-OS-000228-GPOS-00088 | TBD - Assigned by DISA after STIG release | Any publically accessible connection to the operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. | CCE-80763-6: Modify the System Login Banner | Display of a standardized and approved use notification before granting access to the publicly accessible operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've readconsent to terms in IS user agreem't." |
To configure the system login banner edit /etc/issue. Replace the
default text with a message compliant with the local site policy or a legal
disclaimer.
The DoD required text is either:
You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests -- not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details. OR: I've read & consent to terms in IS user agreem't. |
Applicable - Configurable | Verify any publically accessible connection to the operating system displays the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | To check if the system login banner is compliant,
run the following command:
$ cat /etc/issueIs it the case that it does not display the required banner? |
Configure any publically accessible connection to the operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." |
To configure the system login banner edit /etc/issue. Replace the
default text with a message compliant with the local site policy or a legal
disclaimer.
The DoD required text is either:
You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests -- not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details. OR: I've read & consent to terms in IS user agreem't. |
medium | |||
| CCI-001384 | SRG-OS-000228-GPOS-00088 | TBD - Assigned by DISA after STIG release | Any publically accessible connection to the operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. | CCE-80768-5: Enable GNOME3 Login Warning Banner | Display of a standardized and approved use notification before granting access to the publicly accessible operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've readconsent to terms in IS user agreem't." | In the default graphical environment, displaying a login warning banner
in the GNOME Display Manager's login screen can be enabled on the login
screen by setting banner-message-enable to true.
To enable, add or edit banner-message-enable to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] banner-message-enable=trueOnce the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/banner-message-enableAfter the settings have been set, run dconf update. The banner text must also be set. |
Applicable - Configurable | Verify any publically accessible connection to the operating system displays the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | To ensure a login warning banner is enabled, run the following:
$ grep banner-message-enable /etc/dconf/db/gdm.d/*If properly configured, the output should be true. To ensure a login warning banner is locked and cannot be changed by a user, run the following: $ grep banner-message-enable /etc/dconf/db/gdm.d/locks/*If properly configured, the output should be /org/gnome/login-screen/banner-message-enable. Is it the case that it is not? |
Configure any publically accessible connection to the operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." | In the default graphical environment, displaying a login warning banner
in the GNOME Display Manager's login screen can be enabled on the login
screen by setting banner-message-enable to true.
To enable, add or edit banner-message-enable to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] banner-message-enable=trueOnce the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/banner-message-enableAfter the settings have been set, run dconf update. The banner text must also be set. |
medium | |||
| CCI-001384 | SRG-OS-000228-GPOS-00088 | TBD - Assigned by DISA after STIG release | Any publically accessible connection to the operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. | CCE-80770-1: Set the GNOME3 Login Warning Banner Text | Display of a standardized and approved use notification before granting access to the publicly accessible operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've readconsent to terms in IS user agreem't." | In the default graphical environment, configuring the login warning banner text
in the GNOME Display Manager's login screen can be configured on the login
screen by setting banner-message-text to 'APPROVED_BANNER'
where APPROVED_BANNER is the approved banner for your environment.
To enable, add or edit banner-message-text to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] banner-message-text='APPROVED_BANNER'Once the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/banner-message-textAfter the settings have been set, run dconf update. When entering a warning banner that spans several lines, remember to begin and end the string with ' and use \n for new lines. |
Applicable - Configurable | Verify any publically accessible connection to the operating system displays the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. |
To ensure the login warning banner text is properly set, run the following:
$ grep banner-message-text /etc/dconf/db/gdm.d/*If properly configured, the proper banner text will appear. To ensure the login warning banner text is locked and cannot be changed by a user, run the following: $ grep banner-message-text /etc/dconf/db/gdm.d/locks/*If properly configured, the output should be /org/gnome/login-screen/banner-message-text. Is it the case that it does not? |
Configure any publically accessible connection to the operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." | In the default graphical environment, configuring the login warning banner text
in the GNOME Display Manager's login screen can be configured on the login
screen by setting banner-message-text to 'APPROVED_BANNER'
where APPROVED_BANNER is the approved banner for your environment.
To enable, add or edit banner-message-text to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] banner-message-text='APPROVED_BANNER'Once the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/banner-message-textAfter the settings have been set, run dconf update. When entering a warning banner that spans several lines, remember to begin and end the string with ' and use \n for new lines. |
medium | |||
| CCI-001384 | SRG-OS-000228-GPOS-00088 | TBD - Assigned by DISA after STIG release | Any publically accessible connection to the operating system must display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. | CCE-80905-3: Enable SSH Warning Banner | Display of a standardized and approved use notification before granting access to the publicly accessible operating system ensures privacy and security notification verbiage used is consistent with applicable federal laws, Executive Orders, directives, policies, regulations, standards, and guidance. System use notifications are required only for access via logon interfaces with human users and are not required when such human interfaces do not exist. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've readconsent to terms in IS user agreem't." | To enable the warning banner and ensure it is consistent
across the system, add or correct the following line in
/etc/ssh/sshd_config:
Banner /etc/issueAnother section contains information on how to create an appropriate system-wide warning banner. |
Applicable - Configurable | Verify any publically accessible connection to the operating system displays the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." If it does not, this is a finding. | To determine how the SSH daemon's Banner option is set, run the following command:
$ sudo grep -i Banner /etc/ssh/sshd_configIf a line indicating /etc/issue is returned, then the required value is set. Is it the case that the required value is not set? |
Configure any publically accessible connection to the operating system to display the Standard Mandatory DoD Notice and Consent Banner before granting access to the system. The banner must be formatted in accordance with applicable DoD policy. Use the following verbiage for operating systems that can accommodate banners of 1300 characters: "You are accessing a U.S. Government (USG) Information System (IS) that is provided for USG-authorized use only. By using this IS (which includes any device attached to this IS), you consent to the following conditions: -The USG routinely intercepts and monitors communications on this IS for purposes including, but not limited to, penetration testing, COMSEC monitoring, network operations and defense, personnel misconduct (PM), law enforcement (LE), and counterintelligence (CI) investigations. -At any time, the USG may inspect and seize data stored on this IS. -Communications using, or data stored on, this IS are not private, are subject to routine monitoring, interception, and search, and may be disclosed or used for any USG-authorized purpose. -This IS includes security measures (e.g., authentication and access controls) to protect USG interests--not for your personal benefit or privacy. -Notwithstanding the above, using this IS does not constitute consent to PM, LE or CI investigative searching or monitoring of the content of privileged communications, or work product, related to personal representation or services by attorneys, psychotherapists, or clergy, and their assistants. Such communications and work product are private and confidential. See User Agreement for details." Use the following verbiage for operating systems that have severe limitations on the number of characters that can be displayed in the banner: "I've read & consent to terms in IS user agreem't." | To enable the warning banner and ensure it is consistent
across the system, add or correct the following line in
/etc/ssh/sshd_config:
Banner /etc/issueAnother section contains information on how to create an appropriate system-wide warning banner. |
medium | |||
| CCI-001403 | SRG-OS-000239-GPOS-00089 | TBD - Assigned by DISA after STIG release | The operating system must audit all account modifications. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an existing account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account modification. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account modification. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-001403 | SRG-OS-000239-GPOS-00089 | TBD - Assigned by DISA after STIG release | The operating system must audit all account modifications. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an existing account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account modification. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account modification. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-001403 | SRG-OS-000239-GPOS-00089 | TBD - Assigned by DISA after STIG release | The operating system must audit all account modifications. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an existing account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account modification. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account modification. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001403 | SRG-OS-000239-GPOS-00089 | TBD - Assigned by DISA after STIG release | The operating system must audit all account modifications. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an existing account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account modification. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to automatically audit account modification. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001403 | SRG-OS-000239-GPOS-00089 | TBD - Assigned by DISA after STIG release | The operating system must audit all account modifications. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an existing account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account modification. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account modification. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001403 | SRG-OS-000239-GPOS-00089 | TBD - Assigned by DISA after STIG release | The operating system must audit all account modifications. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an existing account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account modification. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account modification. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001403 | SRG-OS-000239-GPOS-00089 | TBD - Assigned by DISA after STIG release | The operating system must audit all account modifications. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an existing account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account modification. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account modification. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001404 | SRG-OS-000240-GPOS-00090 | TBD - Assigned by DISA after STIG release | The operating system must audit all account disabling actions. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account disabling actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account disabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account disabling actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-001404 | SRG-OS-000240-GPOS-00090 | TBD - Assigned by DISA after STIG release | The operating system must audit all account disabling actions. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account disabling actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account disabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account disabling actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-001404 | SRG-OS-000240-GPOS-00090 | TBD - Assigned by DISA after STIG release | The operating system must audit all account disabling actions. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account disabling actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account disabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account disabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001404 | SRG-OS-000240-GPOS-00090 | TBD - Assigned by DISA after STIG release | The operating system must audit all account disabling actions. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account disabling actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account disabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to automatically audit account disabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001404 | SRG-OS-000240-GPOS-00090 | TBD - Assigned by DISA after STIG release | The operating system must audit all account disabling actions. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account disabling actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account disabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account disabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001404 | SRG-OS-000240-GPOS-00090 | TBD - Assigned by DISA after STIG release | The operating system must audit all account disabling actions. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account disabling actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account disabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account disabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001404 | SRG-OS-000240-GPOS-00090 | TBD - Assigned by DISA after STIG release | The operating system must audit all account disabling actions. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account disabling actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account disabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account disabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001405 | SRG-OS-000241-GPOS-00091 | TBD - Assigned by DISA after STIG release | The operating system must audit all account removal actions. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account removal actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account removal actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account removal actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-001405 | SRG-OS-000241-GPOS-00091 | TBD - Assigned by DISA after STIG release | The operating system must audit all account removal actions. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account removal actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account removal actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account removal actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-001405 | SRG-OS-000241-GPOS-00091 | TBD - Assigned by DISA after STIG release | The operating system must audit all account removal actions. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account removal actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account removal actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account removal actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001405 | SRG-OS-000241-GPOS-00091 | TBD - Assigned by DISA after STIG release | The operating system must audit all account removal actions. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account removal actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account removal actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to automatically audit account removal actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001405 | SRG-OS-000241-GPOS-00091 | TBD - Assigned by DISA after STIG release | The operating system must audit all account removal actions. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account removal actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account removal actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account removal actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001405 | SRG-OS-000241-GPOS-00091 | TBD - Assigned by DISA after STIG release | The operating system must audit all account removal actions. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account removal actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account removal actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account removal actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001405 | SRG-OS-000241-GPOS-00091 | TBD - Assigned by DISA after STIG release | The operating system must audit all account removal actions. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual users or for identifying the operating system processes themselves. In order to detect and respond to events affecting user accessibility and system processing, operating systems must audit account removal actions and, as required, notify the appropriate individuals so they can investigate the event. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account removal actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account removal actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-84254-2: Configure GnuTLS library to use DoD-approved TLS Encryption | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. GnuTLS is supported by system crypto policy, but the GnuTLS configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/gnutls.config contains the following line and is not commented out: +VERS-ALL:-VERS-DTLS0.9:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS1.0 | Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | To verify if GnuTLS uses defined DoD-approved TLS Crypto Policy, run:
$ sudo grep '+VERS-ALL:-VERS-DTLS0.9:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS1.0' /etc/crypto-policies/back-ends/gnutls.configand verify that a match exists. Is it the case that cryptographic policy for gnutls is not configured or is configured incorrectly? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. GnuTLS is supported by system crypto policy, but the GnuTLS configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/gnutls.config contains the following line and is not commented out: +VERS-ALL:-VERS-DTLS0.9:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS1.0 | medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-80938-4: Configure OpenSSL library to use System Crypto Policy | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSL is supported by crypto policy, but the OpenSSL configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, you have to examine the OpenSSL config file available under /etc/pki/tls/openssl.cnf. This file has the ini format, and it enables crypto policy support if there is a [ crypto_policy ] section that contains the .include /etc/crypto-policies/back-ends/opensslcnf.config directive. | Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | To verify that OpenSSL uses the system crypto policy, check out that the OpenSSL config file
/etc/pki/tls/openssl.cnfcontains the [ crypto_policy ]section with the .include /etc/crypto-policies/back-ends/opensslcnf.configdirective: $ sudo grep '\.include\s* /etc/crypto-policies/back-ends/opensslcnf.config$' /etc/pki/tls/openssl.cnf. Is it the case that the OpenSSL config file doesn't contain the whole section, or the section doesn't contain the .include /etc/crypto-policies/back-ends/opensslcnf.configdirective? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSL is supported by crypto policy, but the OpenSSL configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, you have to examine the OpenSSL config file available under /etc/pki/tls/openssl.cnf. This file has the ini format, and it enables crypto policy support if there is a [ crypto_policy ] section that contains the .include /etc/crypto-policies/back-ends/opensslcnf.config directive. | medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-84255-9: Configure OpenSSL library to use TLS Encryption | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Crypto Policies are means of enforcing certain cryptographic settings for
selected applications including OpenSSL. OpenSSL is by default configured to
modify its configuration based on currently configured Crypto Policy.
Editing the Crypto Policy back-end is not recommended.
Check the crypto-policies(7) man page and choose a policy that configures TLS
protocol to version 1.2 or higher, for example DEFAULT, FUTURE or FIPS policy.
Or create and apply a custom policy that restricts minimum TLS version to 1.2.
For example for versions prior to crypto-policies-20210617-1.gitc776d3e.el8.noarch
this is expected:
$ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config MinProtocol = TLSv1.2Or for version crypto-policies-20210617-1.gitc776d3e.el8.noarch and newer this is expected: $ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config TLS.MinProtocol = TLSv1.2 DTLS.MinProtocol = DTLSv1.2 |
Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | To verify if the OpenSSL uses defined TLS Crypto Policy, run:
$ grep -P '^(TLS\.)?MinProtocol' /etc/crypto-policies/back-ends/opensslcnf.configand verify that the value is TLSv1.2Is it the case that cryptographic policy for openssl is not configured or is configured incorrectly? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Crypto Policies are means of enforcing certain cryptographic settings for
selected applications including OpenSSL. OpenSSL is by default configured to
modify its configuration based on currently configured Crypto Policy.
Editing the Crypto Policy back-end is not recommended.
Check the crypto-policies(7) man page and choose a policy that configures TLS
protocol to version 1.2 or higher, for example DEFAULT, FUTURE or FIPS policy.
Or create and apply a custom policy that restricts minimum TLS version to 1.2.
For example for versions prior to crypto-policies-20210617-1.gitc776d3e.el8.noarch
this is expected:
$ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config MinProtocol = TLSv1.2Or for version crypto-policies-20210617-1.gitc776d3e.el8.noarch and newer this is expected: $ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config TLS.MinProtocol = TLSv1.2 DTLS.MinProtocol = DTLSv1.2 |
medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-80939-2: Configure SSH to use System Crypto Policy | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. SSH is supported by crypto policy, but the SSH configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that the CRYPTO_POLICY variable is either commented or not set at all in the /etc/sysconfig/sshd. | Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | Verify that sshd isn't configured to ignore the system wide cryptographic policy. Check that the CRYPTO_POLICY variable is not set or is commented out in the /etc/sysconfig/sshd. Run the following command: $ sudo grep CRYPTO_POLICY /etc/sysconfig/sshd Is it the case that the CRYPTO_POLICY variable is set or is not commented out in the /etc/sysconfig/sshd? | Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. SSH is supported by crypto policy, but the SSH configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that the CRYPTO_POLICY variable is either commented or not set at all in the /etc/sysconfig/sshd. | medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-85902-5: Configure SSH Client to Use FIPS 140-2 Validated Ciphers: openssh.config | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | To verify if the OpenSSH client uses defined Cipher suite in the Crypto Policy, run:
$ grep -i ciphers /etc/crypto-policies/back-ends/openssh.configand verify that the line matches: CiphersIs it the case that Crypto Policy for OpenSSH client is not configured correctly? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
high | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-85897-7: Configure SSH Server to Use FIPS 140-2 Validated Ciphers: opensshserver.config | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/opensshserver.config contains the following
text and is not commented out:
-oCiphers= |
Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | To verify if the OpenSSH server uses defined ciphers in the Crypto Policy, run:
$ grep -Po '(-oCiphers=\S+)' /etc/crypto-policies/back-ends/opensshserver.configand verify that the line matches: -oCiphers=Is it the case that Crypto Policy for OpenSSH Server is not configured correctly? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/opensshserver.config contains the following
text and is not commented out:
-oCiphers= |
medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-85870-4: Configure SSH Client to Use FIPS 140-2 Validated MACs: openssh.config | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/openssh.config contains the following line and is not commented out: MACs | Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | To verify if the OpenSSH client uses defined MACs in the Crypto Policy, run:
$ grep -i macs /etc/crypto-policies/back-ends/openssh.configand verify that the line matches: MACsIs it the case that Crypto Policy for OpenSSH client is not configured correctly? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/openssh.config contains the following line and is not commented out: MACs | medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-85899-3: Configure SSH Server to Use FIPS 140-2 Validated MACs: opensshserver.config | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/opensshserver.config contains the following text and is not commented out: -oMACS= | Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | To verify if the OpenSSH server uses defined MACs in the Crypto Policy, run:
$ grep -Po '(-oMACs=\S+)' /etc/crypto-policies/back-ends/opensshserver.configand verify that the line matches: -oMACS=Is it the case that Crypto Policy for OpenSSH Server is not configured correctly? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be set up incorrectly. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/opensshserver.config contains the following text and is not commented out: -oMACS= | medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-86059-3: Use Only FIPS 140-2 Validated Key Exchange Algorithms | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | Limit the key exchange algorithms to those which are FIPS-approved.
Add or modify the following line in /etc/crypto-policies/back-ends/opensshserver.config
CRYPTO_POLICY='-oKexAlgorithms=ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512'This rule ensures that only the key exchange algorithms mentioned above (or their subset) are configured for use, keeping the given order of algorithms. |
Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | Only FIPS-approved key exchange algorithms must be used. To verify that only FIPS-approved
key exchange algorithms are in use, run the following command:
$ sudo grep -i kexalgorithms /etc/crypto-policies/back-ends/opensshserver.configThe output should contain only following algorithms (or a subset) in the exact order: CRYPTO_POLICY='-oKexAlgorithms=ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512'Is it the case that KexAlgorithms option is commented out, contains non-approved algorithms, or the FIPS-approved algorithms are not in the exact order? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | Limit the key exchange algorithms to those which are FIPS-approved.
Add or modify the following line in /etc/crypto-policies/back-ends/opensshserver.config
CRYPTO_POLICY='-oKexAlgorithms=ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512'This rule ensures that only the key exchange algorithms mentioned above (or their subset) are configured for use, keeping the given order of algorithms. |
medium | |||
| CCI-001453 | SRG-OS-000250-GPOS-00093 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptography to protect the integrity of remote access sessions. | CCE-84027-2: Set kernel parameter 'crypto.fips_enabled' to 1 | Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote access (e.g., RDP) is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Cryptographic mechanisms used for protecting the integrity of information include, for example, signed hash functions using asymmetric cryptography enabling distribution of the public key to verify the hash information while maintaining the confidentiality of the secret key used to generate the hash. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
Applicable - Configurable | Verify the operating system implements cryptography to protect the integrity of remote access sessions. If it does not, this is a finding. | To verify that kernel parameter 'crypto.fips_enabled' is set properly, run the following command:
sysctl crypto.fips_enabledThe output should contain the following: crypto.fips_enabled = 1Is it the case that crypto.fips_enabled is not 1? |
Configure the operating system to implement cryptography to protect the integrity of remote access sessions. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
high | |||
| CCI-001464 | SRG-OS-000254-GPOS-00095 | TBD - Assigned by DISA after STIG release | The operating system must initiate session audits at system start-up. | CCE-80825-3: Enable Auditing for Processes Which Start Prior to the Audit Daemon | If auditing is enabled late in the start-up process, the actions of some start-up processes may not be audited. Some audit systems also maintain state information only available if auditing is enabled before a given process is created. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
Applicable - Configurable | Verify the operating system initiates session audits at system start-up. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit=1'The command should not return any output. Is it the case that auditing is not enabled at boot time? |
Configure the operating system to initiate session audits at system start-up. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
low | |||
| CCI-001464 | SRG-OS-000254-GPOS-00095 | TBD - Assigned by DISA after STIG release | The operating system must initiate session audits at system start-up. | CCE-80943-4: Extend Audit Backlog Limit for the Audit Daemon | If auditing is enabled late in the start-up process, the actions of some start-up processes may not be audited. Some audit systems also maintain state information only available if auditing is enabled before a given process is created. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
Applicable - Configurable | Verify the operating system initiates session audits at system start-up. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit_backlog_limit=8192,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit_backlog_limit=8192.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit_backlog_limit=8192.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit_backlog_limit=8192'The command should not return any output. Is it the case that audit backlog limit is not configured? |
Configure the operating system to initiate session audits at system start-up. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
low | |||
| CCI-001464 | SRG-OS-000254-GPOS-00095 | TBD - Assigned by DISA after STIG release | The operating system must initiate session audits at system start-up. | CCE-81043-2: Ensure the audit Subsystem is Installed | If auditing is enabled late in the start-up process, the actions of some start-up processes may not be audited. Some audit systems also maintain state information only available if auditing is enabled before a given process is created. | The audit package should be installed. | Applicable - Configurable | Verify the operating system initiates session audits at system start-up. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to initiate session audits at system start-up. | The audit package should be installed. | medium | |||
| CCI-001464 | SRG-OS-000254-GPOS-00095 | TBD - Assigned by DISA after STIG release | The operating system must initiate session audits at system start-up. | CCE-80872-5: Enable auditd Service | If auditing is enabled late in the start-up process, the actions of some start-up processes may not be audited. Some audit systems also maintain state information only available if auditing is enabled before a given process is created. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system initiates session audits at system start-up. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to initiate session audits at system start-up. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001487 | SRG-OS-000255-GPOS-00096 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish the identity of any individual or process associated with the event. | CCE-82201-5: Resolve information before writing to audit logs | Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associated with the events, security personnel cannot determine responsibility for the potentially harmful event. | To configure Audit daemon to resolve all uid, gid, syscall, architecture, and socket address information before writing the events to disk, set log_format to ENRICHED in /etc/audit/auditd.conf. | Applicable - Configurable | Verify the operating system produces audit records containing information to establish the identity of any individual or process associated with the event. If it does not, this is a finding. | To verify that Audit Daemon is configured to resolve all uid, gid, syscall,
architecture, and socket address information before writing the event to disk,
run the following command:
$ sudo grep log_format /etc/audit/auditd.confThe output should return the following: log_format = ENRICHEDIs it the case that log_format isn't set to ENRICHED? |
Configure the operating system to produce audit records containing information to establish the identity of any individual or process associated with the event. | To configure Audit daemon to resolve all uid, gid, syscall, architecture, and socket address information before writing the events to disk, set log_format to ENRICHED in /etc/audit/auditd.conf. | low | |||
| CCI-001487 | SRG-OS-000255-GPOS-00096 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish the identity of any individual or process associated with the event. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associated with the events, security personnel cannot determine responsibility for the potentially harmful event. | The audit package should be installed. | Applicable - Configurable | Verify the operating system produces audit records containing information to establish the identity of any individual or process associated with the event. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to produce audit records containing information to establish the identity of any individual or process associated with the event. | The audit package should be installed. | medium | |||
| CCI-001487 | SRG-OS-000255-GPOS-00096 | TBD - Assigned by DISA after STIG release | The operating system must produce audit records containing information to establish the identity of any individual or process associated with the event. | CCE-80872-5: Enable auditd Service | Without information that establishes the identity of the subjects (i.e., users or processes acting on behalf of users) associated with the events, security personnel cannot determine responsibility for the potentially harmful event. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system produces audit records containing information to establish the identity of any individual or process associated with the event. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to produce audit records containing information to establish the identity of any individual or process associated with the event. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001493 | SRG-OS-000256-GPOS-00097 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized access. | CCE-86239-1: Audit Tools Must Be Group-owned by Root | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user enjoys in order to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct group owner. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized access. If it does not, this is a finding. | Verify the audit tools are group-owned by "root" to prevent any unauthorized access, deletion, or modification. Check the group-owner of each audit tool by running the following command: $ sudo stat -c "%G %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules root /sbin/auditctl root /sbin/aureport root /sbin/ausearch root /sbin/autrace root /sbin/auditd root /sbin/rsyslogd root /sbin/augenrules Is it the case that any audit tools are not group-owned by root? | Configure the operating system to protect audit tools from unauthorized access. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct group owner. | medium | |||
| CCI-001493 | SRG-OS-000256-GPOS-00097 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized access. | CCE-86259-9: Audit Tools Must Be Owned by Root | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user enjoys in order to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct owner. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized access. If it does not, this is a finding. | Verify the audit tools are owned by "root" to prevent any unauthorized access, deletion, or modification. Check the owner of each audit tool by running the following command: $ sudo stat -c "%U %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules root /sbin/auditctl root /sbin/aureport root /sbin/ausearch root /sbin/autrace root /sbin/auditd root /sbin/rsyslogd root /sbin/augenrules Is it the case that any audit tools are not owned by root? | Configure the operating system to protect audit tools from unauthorized access. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct owner. | medium | |||
| CCI-001493 | SRG-OS-000256-GPOS-00097 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized access. | CCE-86227-6: Audit Tools Must Have a Mode of 0755 or Less Permissive | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user enjoys in order to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have a mode of 0755 or less permissive. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized access. If it does not, this is a finding. | Verify the audit tools are protected from unauthorized access, deletion, or modification by checking the permissive mode. Check the octal permission of each audit tool by running the following command: $ sudo stat -c "%U %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules Is it the case that any of these files have more permissive permissions than 0755? | Configure the operating system to protect audit tools from unauthorized access. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have a mode of 0755 or less permissive. | medium | |||
| CCI-001494 | SRG-OS-000257-GPOS-00098 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized modification. | CCE-86239-1: Audit Tools Must Be Group-owned by Root | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user has in order to make access decisions regarding the modification of audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct group owner. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized modification. If it does not, this is a finding. | Verify the audit tools are group-owned by "root" to prevent any unauthorized access, deletion, or modification. Check the group-owner of each audit tool by running the following command: $ sudo stat -c "%G %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules root /sbin/auditctl root /sbin/aureport root /sbin/ausearch root /sbin/autrace root /sbin/auditd root /sbin/rsyslogd root /sbin/augenrules Is it the case that any audit tools are not group-owned by root? | Configure the operating system to protect audit tools from unauthorized modification. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct group owner. | medium | |||
| CCI-001494 | SRG-OS-000257-GPOS-00098 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized modification. | CCE-86259-9: Audit Tools Must Be Owned by Root | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user has in order to make access decisions regarding the modification of audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct owner. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized modification. If it does not, this is a finding. | Verify the audit tools are owned by "root" to prevent any unauthorized access, deletion, or modification. Check the owner of each audit tool by running the following command: $ sudo stat -c "%U %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules root /sbin/auditctl root /sbin/aureport root /sbin/ausearch root /sbin/autrace root /sbin/auditd root /sbin/rsyslogd root /sbin/augenrules Is it the case that any audit tools are not owned by root? | Configure the operating system to protect audit tools from unauthorized modification. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct owner. | medium | |||
| CCI-001494 | SRG-OS-000257-GPOS-00098 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized modification. | CCE-86227-6: Audit Tools Must Have a Mode of 0755 or Less Permissive | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user has in order to make access decisions regarding the modification of audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have a mode of 0755 or less permissive. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized modification. If it does not, this is a finding. | Verify the audit tools are protected from unauthorized access, deletion, or modification by checking the permissive mode. Check the octal permission of each audit tool by running the following command: $ sudo stat -c "%U %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules Is it the case that any of these files have more permissive permissions than 0755? | Configure the operating system to protect audit tools from unauthorized modification. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have a mode of 0755 or less permissive. | medium | |||
| CCI-001495 | SRG-OS-000258-GPOS-00099 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized deletion. | CCE-86239-1: Audit Tools Must Be Group-owned by Root | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user has in order to make access decisions regarding the deletion of audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct group owner. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized deletion. If it does not, this is a finding. | Verify the audit tools are group-owned by "root" to prevent any unauthorized access, deletion, or modification. Check the group-owner of each audit tool by running the following command: $ sudo stat -c "%G %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules root /sbin/auditctl root /sbin/aureport root /sbin/ausearch root /sbin/autrace root /sbin/auditd root /sbin/rsyslogd root /sbin/augenrules Is it the case that any audit tools are not group-owned by root? | Configure the operating system to protect audit tools from unauthorized deletion. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct group owner. | medium | |||
| CCI-001495 | SRG-OS-000258-GPOS-00099 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized deletion. | CCE-86259-9: Audit Tools Must Be Owned by Root | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user has in order to make access decisions regarding the deletion of audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct owner. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized deletion. If it does not, this is a finding. | Verify the audit tools are owned by "root" to prevent any unauthorized access, deletion, or modification. Check the owner of each audit tool by running the following command: $ sudo stat -c "%U %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules root /sbin/auditctl root /sbin/aureport root /sbin/ausearch root /sbin/autrace root /sbin/auditd root /sbin/rsyslogd root /sbin/augenrules Is it the case that any audit tools are not owned by root? | Configure the operating system to protect audit tools from unauthorized deletion. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have the correct owner. | medium | |||
| CCI-001495 | SRG-OS-000258-GPOS-00099 | TBD - Assigned by DISA after STIG release | The operating system must protect audit tools from unauthorized deletion. | CCE-86227-6: Audit Tools Must Have a Mode of 0755 or Less Permissive | Protecting audit information also includes identifying and protecting the tools used to view and manipulate log data. Therefore, protecting audit tools is necessary to prevent unauthorized operation on audit information. Operating systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools and the corresponding rights the user has in order to make access decisions regarding the deletion of audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have a mode of 0755 or less permissive. | Applicable - Configurable | Verify the operating system protects audit tools from unauthorized deletion. If it does not, this is a finding. | Verify the audit tools are protected from unauthorized access, deletion, or modification by checking the permissive mode. Check the octal permission of each audit tool by running the following command: $ sudo stat -c "%U %n" /sbin/auditctl /sbin/aureport /sbin/ausearch /sbin/autrace /sbin/auditd /sbin/rsyslogd /sbin/augenrules Is it the case that any of these files have more permissive permissions than 0755? | Configure the operating system to protect audit tools from unauthorized deletion. | Red Hat Enterprise Linux 8 systems providing tools to interface with audit information will leverage user permissions and roles identifying the user accessing the tools, and the corresponding rights the user enjoys, to make access decisions regarding the access to audit tools. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. Audit tools must have a mode of 0755 or less permissive. | medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-85894-4: Verify that Shared Library Directories Have Root Group Ownership | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System-wide shared library files, which are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are also stored in /lib/modules. All files in these directories should be group-owned by the root user. If the directories, is found to be owned by a user other than root correct its ownership with the following command: $ sudo chgrp root DIR |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Verify the system-wide shared library directories are group-owned by "root" with the following command: $ sudo find /lib /lib64 /usr/lib /usr/lib64 ! -group root -type d -exec stat -c "%n %G" '{}' \; If any system-wide shared library directory is returned and is not group-owned by a required system account, this is a finding. Is it the case that any system-wide shared library directory is returned and is not group-owned by a required system account? | Configure the operating system to limit privileges to change software resident within software libraries. | System-wide shared library files, which are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are also stored in /lib/modules. All files in these directories should be group-owned by the root user. If the directories, is found to be owned by a user other than root correct its ownership with the following command: $ sudo chgrp root DIR |
medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-89021-0: Verify that Shared Library Directories Have Root Ownership | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System-wide shared library files, which are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are also stored in /lib/modules. All files in these directories should be owned by the root user. If the directories, is found to be owned by a user other than root correct its ownership with the following command: $ sudo chown root DIR |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Verify the system-wide shared library directories are owned by "root" with the following command: $ sudo find /lib /lib64 /usr/lib /usr/lib64 ! -user root -type d -exec stat -c "%n %U" '{}' \; Is it the case that any system-wide shared library directory is not owned by root? | Configure the operating system to limit privileges to change software resident within software libraries. | System-wide shared library files, which are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are also stored in /lib/modules. All files in these directories should be owned by the root user. If the directories, is found to be owned by a user other than root correct its ownership with the following command: $ sudo chown root DIR |
medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-88692-9: Verify that Shared Library Directories Have Restrictive Permissions | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System-wide shared library directories, which contain are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are stored in /lib/modules. All sub-directories in these directories should not be group-writable or world-writable. If any file in these directories is found to be group-writable or world-writable, correct its permission with the following command: $ sudo chmod go-w DIR |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Shared libraries are stored in the following directories:
/lib /lib64 /usr/lib /usr/lib64To find shared libraries that are group-writable or world-writable, run the following command for each directory DIR which contains shared libraries: $ sudo find -L DIR -perm /022 -type dIs it the case that any of these files are group-writable or world-writable? |
Configure the operating system to limit privileges to change software resident within software libraries. | System-wide shared library directories, which contain are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are stored in /lib/modules. All sub-directories in these directories should not be group-writable or world-writable. If any file in these directories is found to be group-writable or world-writable, correct its permission with the following command: $ sudo chmod go-w DIR |
medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-86519-6: Verify that system commands files are group owned by root or a system account | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System commands files are stored in the following directories by default:
/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbinAll files in these directories should be owned by the root group, or a system account. If the directory, or any file in these directories, is found to be owned by a group other than root or a a system account correct its ownership with the following command: $ sudo chgrp root FILE |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Verify the system commands contained in the following directories are group-owned by "root", or a required system account, with the following command: $ sudo find -L /bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin ! -group root -exec ls -l {} \; Is it the case that any system commands are returned and is not group-owned by a required system account? | Configure the operating system to limit privileges to change software resident within software libraries. | System commands files are stored in the following directories by default:
/bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbinAll files in these directories should be owned by the root group, or a system account. If the directory, or any file in these directories, is found to be owned by a group other than root or a a system account correct its ownership with the following command: $ sudo chgrp root FILE |
medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-80806-3: Verify that System Executables Have Root Ownership | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System executables are stored in the following directories by default:
/bin /sbin /usr/bin /usr/libexec /usr/local/bin /usr/local/sbin /usr/sbinAll files in these directories should be owned by the root user. If any file FILE in these directories is found to be owned by a user other than root, correct its ownership with the following command: $ sudo chown root FILE |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Verify the system commands contained in the following directories are owned by "root" with the following command: $ sudo find -L /bin /sbin /usr/bin /usr/sbin /usr/libexec /usr/local/bin /usr/local/sbin ! -user root -exec ls -l {} \; Is it the case that any system commands are found to not be owned by root? | Configure the operating system to limit privileges to change software resident within software libraries. | System executables are stored in the following directories by default:
/bin /sbin /usr/bin /usr/libexec /usr/local/bin /usr/local/sbin /usr/sbinAll files in these directories should be owned by the root user. If any file FILE in these directories is found to be owned by a user other than root, correct its ownership with the following command: $ sudo chown root FILE |
medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-80807-1: Verify that Shared Library Files Have Root Ownership | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System-wide shared library files, which are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are also stored in /lib/modules. All files in these directories should be owned by the root user. If the directory, or any file in these directories, is found to be owned by a user other than root correct its ownership with the following command: $ sudo chown root FILE |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Verify the system-wide shared library files are owned by "root" with the following command: $ sudo find -L /lib /lib64 /usr/lib /usr/lib64 ! -user root -exec ls -l {} \; Is it the case that any system wide shared library file is not owned by root? | Configure the operating system to limit privileges to change software resident within software libraries. | System-wide shared library files, which are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are also stored in /lib/modules. All files in these directories should be owned by the root user. If the directory, or any file in these directories, is found to be owned by a user other than root correct its ownership with the following command: $ sudo chown root FILE |
medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-80809-7: Verify that System Executables Have Restrictive Permissions | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System executables are stored in the following directories by default:
/bin /sbin /usr/bin /usr/libexec /usr/local/bin /usr/local/sbin /usr/sbinAll files in these directories should not be group-writable or world-writable. If any file FILE in these directories is found to be group-writable or world-writable, correct its permission with the following command: $ sudo chmod go-w FILE |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Verify the system commands contained in the following directories have mode "755" or less permissive with the following command: $ sudo find -L /bin /sbin /usr/bin /usr/sbin /usr/libexec /usr/local/bin /usr/local/sbin -perm /022 -exec ls -l {} \; Is it the case that any system commands are found to be group-writable or world-writable? | Configure the operating system to limit privileges to change software resident within software libraries. | System executables are stored in the following directories by default:
/bin /sbin /usr/bin /usr/libexec /usr/local/bin /usr/local/sbin /usr/sbinAll files in these directories should not be group-writable or world-writable. If any file FILE in these directories is found to be group-writable or world-writable, correct its permission with the following command: $ sudo chmod go-w FILE |
medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-80815-4: Verify that Shared Library Files Have Restrictive Permissions | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System-wide shared library files, which are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are stored in /lib/modules. All files in these directories should not be group-writable or world-writable. If any file in these directories is found to be group-writable or world-writable, correct its permission with the following command: $ sudo chmod go-w FILE |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Verify the system-wide shared library files contained in the following directories have mode "755" or less permissive with the following command: $ sudo find -L /lib /lib64 /usr/lib /usr/lib64 -perm /022 -type f -exec ls -l {} \; Is it the case that any system-wide shared library file is found to be group-writable or world-writable? | Configure the operating system to limit privileges to change software resident within software libraries. | System-wide shared library files, which are linked to executables
during process load time or run time, are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64Kernel modules, which can be added to the kernel during runtime, are stored in /lib/modules. All files in these directories should not be group-writable or world-writable. If any file in these directories is found to be group-writable or world-writable, correct its permission with the following command: $ sudo chmod go-w FILE |
medium | |||
| CCI-001499 | SRG-OS-000259-GPOS-00100 | TBD - Assigned by DISA after STIG release | The operating system must limit privileges to change software resident within software libraries. | CCE-86523-8: Verify the system-wide library files in directories "/lib", "/lib64", "/usr/lib/" and "/usr/lib64" are group-owned by root. | If the operating system were to allow any user to make changes to software libraries, then those changes might be implemented without undergoing the appropriate testing and approvals that are part of a robust change management process. This requirement applies to operating systems with software libraries that are accessible and configurable, as in the case of interpreted languages. Software libraries also include privileged programs which execute with escalated privileges. Only qualified and authorized individuals shall be allowed to obtain access to information system components for purposes of initiating changes, including upgrades and modifications. | System-wide library files are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64All system-wide shared library files should be protected from unauthorised access. If any of these files is not group-owned by root, correct its group-owner with the following command: $ sudo chgrp root FILE |
Applicable - Configurable | Verify the operating system limits privileges to change software resident within software libraries. If it does not, this is a finding. | Verify the system-wide shared library files are group-owned by "root" with the following command: $ sudo find -L /lib /lib64 /usr/lib /usr/lib64 ! -group root -exec ls -l {} \; Is it the case that any system wide shared library file is returned and is not group-owned by a required system account? | Configure the operating system to limit privileges to change software resident within software libraries. | System-wide library files are stored in the following directories
by default:
/lib /lib64 /usr/lib /usr/lib64All system-wide shared library files should be protected from unauthorised access. If any of these files is not group-owned by root, correct its group-owner with the following command: $ sudo chgrp root FILE |
medium | |||
| CCI-004066 | SRG-OS-000266-GPOS-00101 | TBD - Assigned by DISA after STIG release | The operating system must enforce password complexity by requiring that at least one special character be used. | CCE-80663-8: Ensure PAM Enforces Password Requirements - Minimum Special Characters | Use of a complex password helps to increase the time and resources required to compromise the password. Password complexity or strength is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password complexity is one factor in determining how long it takes to crack a password. The more complex the password, the greater the number of possible combinations that need to be tested before the password is compromised. Special characters are those characters that are not alphanumeric. Examples include: ~ ! @ # $ % ^ *. | The pam_pwquality module's ocredit= parameter controls requirements for usage of special (or "other") characters in a password. When set to a negative number, any password will be required to contain that many special characters. When set to a positive number, pam_pwquality will grant +1 additional length credit for each special character. Modify the ocredit setting in /etc/security/pwquality.conf to equal to require use of a special character in passwords. | Applicable - Configurable | Verify the operating system enforces password complexity by requiring that at least one special character be used. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 enforces password complexity by requiring that at least one special character with the following command:
$ sudo grep ocredit /etc/security/pwquality.conf /etc/security/pwquality.conf.d/*.conf ocredit =Is it the case that value of "ocredit" is a positive number or is commented out? |
Configure the operating system to enforce password complexity by requiring that at least one special character be used. | The pam_pwquality module's ocredit= parameter controls requirements for usage of special (or "other") characters in a password. When set to a negative number, any password will be required to contain that many special characters. When set to a positive number, pam_pwquality will grant +1 additional length credit for each special character. Modify the ocredit setting in /etc/security/pwquality.conf to equal to require use of a special character in passwords. | medium | |||
| CCI-001665 | SRG-OS-000269-GPOS-00103 | TBD - Assigned by DISA after STIG release | In the event of a system failure, the operating system must preserve any information necessary to determine cause of failure and any information necessary to return to operations with least disruption to mission processes. | CCE-80878-2: Disable KDump Kernel Crash Analyzer (kdump) | Failure to a known state can address safety or security in accordance with the mission/business needs of the organization. Failure to a known secure state helps prevent a loss of confidentiality, integrity, or availability in the event of a failure of the information system or a component of the system. Preserving operating system state information helps to facilitate operating system restart and return to the operational mode of the organization with least disruption to mission/business processes. | The kdump service provides a kernel crash dump analyzer. It uses the kexec
system call to boot a secondary kernel ("capture" kernel) following a system
crash, which can load information from the crashed kernel for analysis.
The kdump service can be disabled with the following command:
$ sudo systemctl mask --now kdump.service |
Applicable - Configurable | Verify, in the event of a system failure, the operating system preserves any information necessary to determine cause of failure and any information necessary to return to operations with least disruption to mission processes. If it does not, this is a finding. | To check that the kdump service is disabled in system boot configuration,
run the following command:
$ sudo systemctl is-enabled
Output should indicate the kdump service has either not been installed,
or has been disabled at all runlevels, as shown in the example below:
$ sudo systemctl is-enabledRun the following command to verify kdump is not active (i.e. not running) through current runtime configuration:
$ sudo systemctl is-active kdumpIf the service is not running the command will return the following output: inactiveThe service will also be masked, to check that the kdump is masked, run the following command:
$ sudo systemctl show
If the service is masked the command will return the following outputs:
LoadState=masked UnitFileState=maskedIs it the case that the "kdump" is loaded and not masked? |
Configure the operating system to preserve any information necessary to determine cause of failure and any information necessary to return to operations with least disruption to mission processes, in the event of a system failure. | The kdump service provides a kernel crash dump analyzer. It uses the kexec
system call to boot a secondary kernel ("capture" kernel) following a system
crash, which can load information from the crashed kernel for analysis.
The kdump service can be disabled with the following command:
$ sudo systemctl mask --now kdump.service |
medium | |||
| CCI-000015 | SRG-OS-000274-GPOS-00104 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators and ISSOs when accounts are created. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create a new account. Notification of account creation is one method for mitigating this risk. A comprehensive account management process will ensure an audit trail which documents the creation of operating system user accounts and notifies administrators and ISSOs that it exists. Such a process greatly reduces the risk that accounts will be surreptitiously created and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies System Administrators and Information System Security Officers when accounts are created. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify System Administrators and Information System Security Officers when accounts are created. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000275-GPOS-00105 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators and ISSOs when accounts are modified. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to modify an existing account. Notification of account modification is one method for mitigating this risk. A comprehensive account management process will ensure an audit trail which documents the modification of operating system user accounts and notifies the system administrator and ISSO of changes. Such a process greatly reduces the risk that accounts will be surreptitiously created and provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies System Administrators and Information System Security Officers when accounts are modified. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify System Administrators and Information System Security Officers when accounts are modified. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000276-GPOS-00106 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators and ISSOs when accounts are disabled. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | When operating system accounts are disabled, user accessibility is affected. Accounts are utilized for identifying individual operating system users or for identifying the operating system processes themselves. Sending notification of account disabling events to the system administrator and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies System Administrators and Information System Security Officers when accounts are disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify System Administrators and Information System Security Officers when accounts are disabled. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000277-GPOS-00107 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators and ISSOs when accounts are removed. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | When operating system accounts are removed, user accessibility is affected. Accounts are utilized for identifying individual operating system users or for identifying the operating system processes themselves. Sending notification of account removal events to the system administrator and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies System Administrators and Information System Security Officers for account removal actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify System Administrators and Information System Security Officers for account removal actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-001496 | SRG-OS-000278-GPOS-00108 | TBD - Assigned by DISA after STIG release | The operating system must use cryptographic mechanisms to protect the integrity of audit tools. | CCE-85964-5: Configure AIDE to Verify the Audit Tools | Protecting the integrity of the tools used for auditing purposes is a critical step toward ensuring the integrity of audit information. Audit information includes all information (e.g., audit records, audit settings, and audit reports) needed to successfully audit information system activity. Audit tools include, but are not limited to, vendor-provided and open source audit tools needed to successfully view and manipulate audit information system activity and records. Audit tools include custom queries and report generators. It is not uncommon for attackers to replace the audit tools or inject code into the existing tools with the purpose of providing the capability to hide or erase system activity from the audit logs. To address this risk, audit tools must be cryptographically signed in order to provide the capability to identify when the audit tools have been modified, manipulated, or replaced. An example is a checksum hash of the file or files. | The operating system file integrity tool must be configured to protect the integrity of the audit tools. | Applicable - Configurable | Verify the operating system uses cryptographic mechanisms to protect the integrity of audit tools. If it does not, this is a finding. | Check that AIDE is properly configured to protect the integrity of the
audit tools by running the following command:
# sudo cat /etc/aide.conf | grep /usr/sbin/au /usr/sbin/auditctl p+i+n+u+g+s+b+acl+xattrs+sha512 /usr/sbin/auditd p+i+n+u+g+s+b+acl+xattrs+sha512 /usr/sbin/ausearch p+i+n+u+g+s+b+acl+xattrs+sha512 /usr/sbin/aureport p+i+n+u+g+s+b+acl+xattrs+sha512 /usr/sbin/autrace p+i+n+u+g+s+b+acl+xattrs+sha512 /usr/sbin/augenrules p+i+n+u+g+s+b+acl+xattrs+sha512If AIDE is configured properly to protect the integrity of the audit tools, all lines listed above will be returned from the command. If one or more lines are missing, this is a finding. Is it the case that integrity checks of the audit tools are missing or incomplete? |
Configure the operating system to use cryptographic mechanisms to protect the integrity of audit tools. | The operating system file integrity tool must be configured to protect the integrity of the audit tools. | medium | |||
| CCI-002361 | SRG-OS-000279-GPOS-00109 | TBD - Assigned by DISA after STIG release | The operating system must automatically terminate a user session after inactivity time-outs have expired or at shutdown. | CCE-80906-1: Set SSH Client Alive Interval | Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of network connections that are associated with communications sessions (i.e., network disconnect). A logical session (for local, network, and remote access) is initiated whenever a user (or process acting on behalf of a user) accesses an organizational information system. Such user sessions can be terminated (and thus terminate user access) without terminating network sessions. Session termination terminates all processes associated with a user's logical session except those processes that are specifically created by the user (i.e., session owner) to continue after the session is terminated. Conditions or trigger events requiring automatic session termination can include, for example, organization-defined periods of user inactivity, targeted responses to certain types of incidents, and time-of-day restrictions on information system use. This capability is typically reserved for specific operating system functionality where the system owner, data owner, or organization requires additional assurance. | SSH allows administrators to set a network responsiveness timeout interval.
After this interval has passed, the unresponsive client will be automatically logged out.
To set this timeout interval, edit the following line in /etc/ssh/sshd_config as follows: ClientAliveInterval The timeout interval is given in seconds. For example, have a timeout of 10 minutes, set interval to 600. If a shorter timeout has already been set for the login shell, that value will preempt any SSH setting made in /etc/ssh/sshd_config. Keep in mind that some processes may stop SSH from correctly detecting that the user is idle. |
Applicable - Configurable | Verify the operating system automatically terminates a user session after inactivity time-outs have expired or at shutdown. If it does not, this is a finding. | Run the following command to see what the timeout interval is:
$ sudo grep ClientAliveInterval /etc/ssh/sshd_configIf properly configured, the output should be: ClientAliveIntervalIs it the case that it is commented out or not configured properly? |
Configure the operating system to automatically terminate a user session after inactivity time-outs have expired or at shutdown. | SSH allows administrators to set a network responsiveness timeout interval.
After this interval has passed, the unresponsive client will be automatically logged out.
To set this timeout interval, edit the following line in /etc/ssh/sshd_config as follows: ClientAliveInterval The timeout interval is given in seconds. For example, have a timeout of 10 minutes, set interval to 600. If a shorter timeout has already been set for the login shell, that value will preempt any SSH setting made in /etc/ssh/sshd_config. Keep in mind that some processes may stop SSH from correctly detecting that the user is idle. |
medium | |||
| CCI-002361 | SRG-OS-000279-GPOS-00109 | TBD - Assigned by DISA after STIG release | The operating system must automatically terminate a user session after inactivity time-outs have expired or at shutdown. | CCE-80907-9: Set SSH Client Alive Count Max | Automatic session termination addresses the termination of user-initiated logical sessions in contrast to the termination of network connections that are associated with communications sessions (i.e., network disconnect). A logical session (for local, network, and remote access) is initiated whenever a user (or process acting on behalf of a user) accesses an organizational information system. Such user sessions can be terminated (and thus terminate user access) without terminating network sessions. Session termination terminates all processes associated with a user's logical session except those processes that are specifically created by the user (i.e., session owner) to continue after the session is terminated. Conditions or trigger events requiring automatic session termination can include, for example, organization-defined periods of user inactivity, targeted responses to certain types of incidents, and time-of-day restrictions on information system use. This capability is typically reserved for specific operating system functionality where the system owner, data owner, or organization requires additional assurance. | The SSH server sends at most ClientAliveCountMax messages during a SSH session and waits for a response from the SSH client. The option ClientAliveInterval configures timeout after each ClientAliveCountMax message. If the SSH server does not receive a response from the client, then the connection is considered unresponsive and terminated. For SSH earlier than v8.2, a ClientAliveCountMax value of 0 causes a timeout precisely when the ClientAliveInterval is set. Starting with v8.2, a value of 0 disables the timeout functionality completely. If the option is set to a number greater than 0, then the session will be disconnected after ClientAliveInterval * ClientAliveCountMax seconds without receiving a keep alive message. | Applicable - Configurable | Verify the operating system automatically terminates a user session after inactivity time-outs have expired or at shutdown. If it does not, this is a finding. | To ensure ClientAliveInterval is set correctly, run the following command:
$ sudo grep ClientAliveCountMax /etc/ssh/sshd_configIf properly configured, the output should be: ClientAliveCountMaxFor SSH earlier than v8.2, a ClientAliveCountMax value of 0 causes a timeout precisely when the ClientAliveInterval is set. Starting with v8.2, a value of 0 disables the timeout functionality completely. If the option is set to a number greater than 0, then the session will be disconnected after ClientAliveInterval * ClientAliveCountMax seconds without receiving a keep alive message. Is it the case that it is commented out or not configured properly? |
Configure the operating system to automatically terminate a user session after inactivity time-outs have expired or at shutdown. | The SSH server sends at most ClientAliveCountMax messages during a SSH session and waits for a response from the SSH client. The option ClientAliveInterval configures timeout after each ClientAliveCountMax message. If the SSH server does not receive a response from the client, then the connection is considered unresponsive and terminated. For SSH earlier than v8.2, a ClientAliveCountMax value of 0 causes a timeout precisely when the ClientAliveInterval is set. Starting with v8.2, a value of 0 disables the timeout functionality completely. If the option is set to a number greater than 0, then the session will be disconnected after ClientAliveInterval * ClientAliveCountMax seconds without receiving a keep alive message. | medium | |||
| V-57209 | SRG-OS-000280-GPOS-00110 | TBD - Assigned by DISA after STIG release | The operating system must provide a logoff capability for user-initiated communications sessions when requiring user access authentication. | If a user cannot explicitly end an operating system session, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Information resources to which users gain access via authentication include, for example, local workstations and remote services. For some types of interactive sessions, including, for example, remote logon, information systems typically send logoff messages as final messages prior to terminating sessions. | |||||||||||
| V-57211 | SRG-OS-000281-GPOS-00111 | TBD - Assigned by DISA after STIG release | The operating system must display an explicit logoff message to users indicating the reliable termination of authenticated communications sessions. | If a user cannot explicitly end an operating system session, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Users need to be aware of whether or not the session has been terminated. Information resources to which users gain access via authentication include, for example, local workstations and remote services. Logoff messages can be displayed after authenticated sessions have been terminated. However, for some types of interactive sessions, including, for example, remote logon, information systems typically send logoff messages as final messages prior to terminating sessions. | |||||||||||
| CCI-002314 | SRG-OS-000297-GPOS-00115 | TBD - Assigned by DISA after STIG release | The operating system must control remote access methods. | CCE-84300-3: Configure the Firewalld Ports | Remote access services, such as those providing remote access to network devices and information systems, which lack automated control capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Operating system functionality (e.g., RDP) must be capable of taking enforcement action if the audit reveals unauthorized activity. Automated control of remote access sessions allows organizations to ensure ongoing compliance with remote access policies by enforcing connection rules of remote access applications on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets). | Configure the firewalld ports to allow approved services to have access to the system.
To configure firewalld to open ports, run the following command:
firewall-cmd --permanent --add-port=port_number/tcpTo configure firewalld to allow access for pre-defined services, run the following command: firewall-cmd --permanent --add-service=service_name |
Applicable - Configurable | Verify the operating system controls remote access methods. If it does not, this is a finding. | Inspect the list of enabled firewall ports and verify they are configured correctly by running
the following command:
$ sudo firewall-cmd --list-allAsk the System Administrator for the site or program Ports, Protocols, and Services Management Component Local Service Assessment (PPSM CLSA). Verify the services allowed by the firewall match the PPSM CLSA. Is it the case that there are additional ports, protocols, or services that are not in the PPSM CLSA, or there are ports, protocols, or services that are prohibited by the PPSM Category Assurance List (CAL), or there are no firewall rules configured? |
Configure the operating system to control remote access methods. | Configure the firewalld ports to allow approved services to have access to the system.
To configure firewalld to open ports, run the following command:
firewall-cmd --permanent --add-port=port_number/tcpTo configure firewalld to allow access for pre-defined services, run the following command: firewall-cmd --permanent --add-service=service_name |
medium | |||
| CCI-002314 | SRG-OS-000297-GPOS-00115 | TBD - Assigned by DISA after STIG release | The operating system must control remote access methods. | CCE-86266-4: Firewalld Must Employ a Deny-all, Allow-by-exception Policy for Allowing Connections to Other Systems | Remote access services, such as those providing remote access to network devices and information systems, which lack automated control capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Operating system functionality (e.g., RDP) must be capable of taking enforcement action if the audit reveals unauthorized activity. Automated control of remote access sessions allows organizations to ensure ongoing compliance with remote access policies by enforcing connection rules of remote access applications on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets). | Red Hat Enterprise Linux 8 incorporates the "firewalld" daemon, which allows for many different configurations. One of these configurations is zones. Zones can be utilized to a deny-all, allow-by-exception approach. The default "drop" zone will drop all incoming network packets unless it is explicitly allowed by the configuration file or is related to an outgoing network connection. | Applicable - Configurable | Verify the operating system controls remote access methods. If it does not, this is a finding. | Verify "firewalld" is configured to employ a deny-all, allow-by-exception policy for allowing connections to other systems with the following commands: $ sudo firewall-cmd --state running $ sudo firewall-cmd --get-active-zones [custom] interfaces: ens33 $ sudo firewall-cmd --info-zone=[custom] | grep target target: DROP Is it the case that no zones are active on the interfaces or if the target is set to a different option other than "DROP"? | Configure the operating system to control remote access methods. | Red Hat Enterprise Linux 8 incorporates the "firewalld" daemon, which allows for many different configurations. One of these configurations is zones. Zones can be utilized to a deny-all, allow-by-exception approach. The default "drop" zone will drop all incoming network packets unless it is explicitly allowed by the configuration file or is related to an outgoing network connection. | medium | |||
| CCI-002314 | SRG-OS-000297-GPOS-00115 | TBD - Assigned by DISA after STIG release | The operating system must control remote access methods. | CCE-82998-6: Install firewalld Package | Remote access services, such as those providing remote access to network devices and information systems, which lack automated control capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Operating system functionality (e.g., RDP) must be capable of taking enforcement action if the audit reveals unauthorized activity. Automated control of remote access sessions allows organizations to ensure ongoing compliance with remote access policies by enforcing connection rules of remote access applications on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets). | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
Applicable - Configurable | Verify the operating system controls remote access methods. If it does not, this is a finding. | Run the following command to determine if the firewalld package is installed: $ rpm -q firewalldIs it the case that the package is not installed? |
Configure the operating system to control remote access methods. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
medium | |||
| CCI-002314 | SRG-OS-000297-GPOS-00115 | TBD - Assigned by DISA after STIG release | The operating system must control remote access methods. | CCE-80877-4: Verify firewalld Enabled | Remote access services, such as those providing remote access to network devices and information systems, which lack automated control capabilities, increase risk and make remote user access management difficult at best. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Operating system functionality (e.g., RDP) must be capable of taking enforcement action if the audit reveals unauthorized activity. Automated control of remote access sessions allows organizations to ensure ongoing compliance with remote access policies by enforcing connection rules of remote access applications on a variety of information system components (e.g., servers, workstations, notebook computers, smartphones, and tablets). |
The firewalld service can be enabled with the following command:
$ sudo systemctl enable firewalld.service |
Applicable - Configurable | Verify the operating system controls remote access methods. If it does not, this is a finding. |
Run the following command to determine the current status of the
firewalld service:
$ sudo systemctl is-active firewalldIf the service is running, it should return the following: activeIs it the case that the "firewalld" service is disabled, masked, or not started.? |
Configure the operating system to control remote access methods. |
The firewalld service can be enabled with the following command:
$ sudo systemctl enable firewalld.service |
medium | |||
| CCI-002322 | SRG-OS-000298-GPOS-00116 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability to immediately disconnect or disable remote access to the operating system. | CCE-82998-6: Install firewalld Package | Without the ability to immediately disconnect or disable remote access, an attack or other compromise taking place would not be immediately stopped. Operating system remote access functionality must have the capability to immediately disconnect current users remotely accessing the information system and/or disable further remote access. The speed of disconnect or disablement varies based on the criticality of missions functions and the need to eliminate immediate or future remote access to organizational information systems. The remote access functionality (e.g., RDP) may implement features such as automatic disconnect (or user-initiated disconnect) in case of adverse information based on an indicator of compromise or attack. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
Applicable - Configurable | Verify the operating system provides the capability to immediately disconnect or disable remote access to the operating system. If it does not, this is a finding. | Run the following command to determine if the firewalld package is installed: $ rpm -q firewalldIs it the case that the package is not installed? |
Configure the operating system to provide the capability to immediately disconnect or disable remote access to the operating system. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
medium | |||
| CCI-001444 | SRG-OS-000299-GPOS-00117 | TBD - Assigned by DISA after STIG release | The operating system must protect wireless access to and from the system using encryption. | CCE-83501-7: Deactivate Wireless Network Interfaces | Allowing devices and users to connect to or from the system without first authenticating them allows untrusted access and can lead to a compromise or attack. Since wireless communications can be intercepted, it is necessary to use encryption to protect the confidentiality of information in transit. Wireless technologies include, for example, microwave, packet radio (UHF/VHF), 802.11x, and Bluetooth. Wireless networks use authentication protocols (e.g., EAP/TLS, PEAP), which provide credential protection and mutual authentication. This requirement applies to those operating systems that control wireless devices. | Deactivating wireless network interfaces should prevent normal usage of the wireless
capability.
Configure the system to disable all wireless network interfaces with the following command: $ sudo nmcli radio all off |
Applicable - Configurable | Verify the operating system protects wireless access to and from the system using encryption. If it does not, this is a finding. | Verify that there are no wireless interfaces configured on the system
with the following command:
Note: This requirement is Not Applicable for systems that do not have physical wireless network radios.
$ nmcli device status DEVICE TYPE STATE CONNECTION virbr0 bridge connected virbr0 wlp7s0 wifi connected wifiSSID enp6s0 ethernet disconnected -- p2p-dev-wlp7s0 wifi-p2p disconnected -- lo loopback unmanaged -- virbr0-nic tun unmanaged --Is it the case that a wireless interface is configured and has not been documented and approved by the Information System Security Officer (ISSO)? |
Configure the operating system to protect wireless access to and from the system using encryption. | Deactivating wireless network interfaces should prevent normal usage of the wireless
capability.
Configure the system to disable all wireless network interfaces with the following command: $ sudo nmcli radio all off |
medium | |||
| CCI-001443 | SRG-OS-000300-GPOS-00118 | TBD - Assigned by DISA after STIG release | The operating system must protect wireless access to the system using authentication of users and/or devices. | CCE-80832-9: Disable Bluetooth Kernel Module | Allowing devices and users to connect to the system without first authenticating them allows untrusted access and can lead to a compromise or attack. Wireless technologies include, for example, microwave, packet radio (UHF/VHF), 802.11x, and Bluetooth. Wireless networks use authentication protocols (e.g., EAP/TLS, PEAP), which provide credential protection and mutual authentication. This requirement applies to those operating systems that control wireless devices. | The kernel's module loading system can be configured to prevent
loading of the Bluetooth module. Add the following to
the appropriate /etc/modprobe.d configuration file
to prevent the loading of the Bluetooth module:
install bluetooth /bin/true |
Applicable - Configurable | Verify the operating system protects wireless access to the system using authentication of users and/or devices. If it does not, this is a finding. |
If the system is configured to prevent the loading of the bluetooth kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the bluetooth kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r bluetooth /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to protect wireless access to the system using authentication of users and/or devices. | The kernel's module loading system can be configured to prevent
loading of the Bluetooth module. Add the following to
the appropriate /etc/modprobe.d configuration file
to prevent the loading of the Bluetooth module:
install bluetooth /bin/true |
medium | |||
| CCI-001443 | SRG-OS-000300-GPOS-00118 | TBD - Assigned by DISA after STIG release | The operating system must protect wireless access to the system using authentication of users and/or devices. | CCE-83501-7: Deactivate Wireless Network Interfaces | Allowing devices and users to connect to the system without first authenticating them allows untrusted access and can lead to a compromise or attack. Wireless technologies include, for example, microwave, packet radio (UHF/VHF), 802.11x, and Bluetooth. Wireless networks use authentication protocols (e.g., EAP/TLS, PEAP), which provide credential protection and mutual authentication. This requirement applies to those operating systems that control wireless devices. | Deactivating wireless network interfaces should prevent normal usage of the wireless
capability.
Configure the system to disable all wireless network interfaces with the following command: $ sudo nmcli radio all off |
Applicable - Configurable | Verify the operating system protects wireless access to the system using authentication of users and/or devices. If it does not, this is a finding. | Verify that there are no wireless interfaces configured on the system
with the following command:
Note: This requirement is Not Applicable for systems that do not have physical wireless network radios.
$ nmcli device status DEVICE TYPE STATE CONNECTION virbr0 bridge connected virbr0 wlp7s0 wifi connected wifiSSID enp6s0 ethernet disconnected -- p2p-dev-wlp7s0 wifi-p2p disconnected -- lo loopback unmanaged -- virbr0-nic tun unmanaged --Is it the case that a wireless interface is configured and has not been documented and approved by the Information System Security Officer (ISSO)? |
Configure the operating system to protect wireless access to the system using authentication of users and/or devices. | Deactivating wireless network interfaces should prevent normal usage of the wireless
capability.
Configure the system to disable all wireless network interfaces with the following command: $ sudo nmcli radio all off |
medium | |||
| CCI-002130 | SRG-OS-000303-GPOS-00120 | TBD - Assigned by DISA after STIG release | The operating system must audit all account enabling actions. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable a new or disabled account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account enabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account enabling actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-002130 | SRG-OS-000303-GPOS-00120 | TBD - Assigned by DISA after STIG release | The operating system must audit all account enabling actions. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable a new or disabled account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system automatically audits account enabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account enabling actions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-002130 | SRG-OS-000303-GPOS-00120 | TBD - Assigned by DISA after STIG release | The operating system must audit all account enabling actions. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable a new or disabled account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account enabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account enabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002130 | SRG-OS-000303-GPOS-00120 | TBD - Assigned by DISA after STIG release | The operating system must audit all account enabling actions. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable a new or disabled account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account enabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to automatically audit account enabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002130 | SRG-OS-000303-GPOS-00120 | TBD - Assigned by DISA after STIG release | The operating system must audit all account enabling actions. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable a new or disabled account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account enabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account enabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002130 | SRG-OS-000303-GPOS-00120 | TBD - Assigned by DISA after STIG release | The operating system must audit all account enabling actions. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable a new or disabled account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account enabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account enabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002130 | SRG-OS-000303-GPOS-00120 | TBD - Assigned by DISA after STIG release | The operating system must audit all account enabling actions. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable a new or disabled account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system automatically audits account enabling actions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to automatically audit account enabling actions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000304-GPOS-00121 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system notifies the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000015 | SRG-OS-000304-GPOS-00121 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system notifies the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000015 | SRG-OS-000304-GPOS-00121 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000304-GPOS-00121 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to notify the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000304-GPOS-00121 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000304-GPOS-00121 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000304-GPOS-00121 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to notify the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000015 | SRG-OS-000304-GPOS-00121 | TBD - Assigned by DISA after STIG release | The operating system must notify system administrators (SAs) and information system security officers (ISSOs) of account enabling actions. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to enable an existing disabled account. Sending notification of account enabling actions to the SA and ISSO is one method for mitigating this risk. Such a capability greatly reduces the risk that operating system accessibility will be negatively affected for extended periods of time and also provides logging that can be used for forensic purposes. To detect and respond to events that affect user accessibility and application processing, operating systems must audit account enabling actions and, as required, notify the appropriate individuals so they can investigate the event. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system notifies the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to notify the SA(s) and ISSO(s) when accounts are created, or enabled when previously disabled. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002165 | SRG-OS-000312-GPOS-00122 | TBD - Assigned by DISA after STIG release | The operating system must allow operating system admins to pass information to any other operating system admin or user. | CCE-81027-5: Enable Kernel Parameter to Enforce DAC on Hardlinks | Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have discretion over who should be authorized to access the object and in which mode (e.g., read or write). Ownership is usually acquired as a consequence of creating the object or via specified ownership assignment. DAC allows the owner to determine who will have access to objects they control. An example of DAC includes user-controlled file permissions. When discretionary access control policies are implemented, subjects are not constrained with regard to what actions they can take with information for which they have already been granted access. Thus, subjects that have been granted access to information are not prevented from passing (i.e., the subjects have the discretion to pass) the information to other subjects or objects. A subject that is constrained in its operation by Mandatory Access Control policies is still able to operate under the less rigorous constraints of this requirement. Thus, while Mandatory Access Control imposes constraints preventing a subject from passing information to another subject operating at a different sensitivity level, this requirement permits the subject to pass the information to any subject at the same sensitivity level. The policy is bounded by the information system boundary. Once the information is passed outside the control of the information system, additional means may be required to ensure the constraints remain in effect. While the older, more traditional definitions of discretionary access control require identity-based access control, that limitation is not required for this use of discretionary access control. | To set the runtime status of the fs.protected_hardlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_hardlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_hardlinks = 1 |
Applicable - Configurable | Verify the operating system allows operating system admins to pass information to any other operating system admin or user. If it does not, this is a finding. | The runtime status of the fs.protected_hardlinks kernel parameter can be queried
by running the following command:
$ sysctl fs.protected_hardlinks 1.
Is it the case that the correct value is not returned? |
Configure the operating system to allow operating system admins to pass information to any other operating system admin or user. | To set the runtime status of the fs.protected_hardlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_hardlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_hardlinks = 1 |
medium | |||
| CCI-002165 | SRG-OS-000312-GPOS-00122 | TBD - Assigned by DISA after STIG release | The operating system must allow operating system admins to pass information to any other operating system admin or user. | CCE-81030-9: Enable Kernel Parameter to Enforce DAC on Symlinks | Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have discretion over who should be authorized to access the object and in which mode (e.g., read or write). Ownership is usually acquired as a consequence of creating the object or via specified ownership assignment. DAC allows the owner to determine who will have access to objects they control. An example of DAC includes user-controlled file permissions. When discretionary access control policies are implemented, subjects are not constrained with regard to what actions they can take with information for which they have already been granted access. Thus, subjects that have been granted access to information are not prevented from passing (i.e., the subjects have the discretion to pass) the information to other subjects or objects. A subject that is constrained in its operation by Mandatory Access Control policies is still able to operate under the less rigorous constraints of this requirement. Thus, while Mandatory Access Control imposes constraints preventing a subject from passing information to another subject operating at a different sensitivity level, this requirement permits the subject to pass the information to any subject at the same sensitivity level. The policy is bounded by the information system boundary. Once the information is passed outside the control of the information system, additional means may be required to ensure the constraints remain in effect. While the older, more traditional definitions of discretionary access control require identity-based access control, that limitation is not required for this use of discretionary access control. | To set the runtime status of the fs.protected_symlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_symlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_symlinks = 1 |
Applicable - Configurable | Verify the operating system allows operating system admins to pass information to any other operating system admin or user. If it does not, this is a finding. | The runtime status of the fs.protected_symlinks kernel parameter can be queried
by running the following command:
$ sysctl fs.protected_symlinks 1.
Is it the case that the correct value is not returned? |
Configure the operating system to allow operating system admins to pass information to any other operating system admin or user. | To set the runtime status of the fs.protected_symlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_symlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_symlinks = 1 |
medium | |||
| CCI-002165 | SRG-OS-000312-GPOS-00123 | TBD - Assigned by DISA after STIG release | The operating system must allow operating system admins to grant their privileges to other operating system admins. | CCE-81027-5: Enable Kernel Parameter to Enforce DAC on Hardlinks | Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have discretion over who should be authorized to access the object and in which mode (e.g., read or write). Ownership is usually acquired as a consequence of creating the object or via specified ownership assignment. DAC allows the owner to determine who will have access to objects they control. An example of DAC includes user-controlled file permissions. When discretionary access control policies are implemented, subjects are not constrained with regard to what actions they can take with information for which they have already been granted access. Thus, subjects that have been granted access to information are not prevented from passing (i.e., the subjects have the discretion to pass) the information to other subjects or objects. A subject that is constrained in its operation by Mandatory Access Control policies is still able to operate under the less rigorous constraints of this requirement. Thus, while Mandatory Access Control imposes constraints preventing a subject from passing information to another subject operating at a different sensitivity level, this requirement permits the subject to pass the information to any subject at the same sensitivity level. The policy is bounded by the information system boundary. Once the information is passed outside the control of the information system, additional means may be required to ensure the constraints remain in effect. While the older, more traditional definitions of discretionary access control require identity-based access control, that limitation is not required for this use of discretionary access control. | To set the runtime status of the fs.protected_hardlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_hardlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_hardlinks = 1 |
Applicable - Configurable | Verify the operating system allows operating system admins to grant their privileges to other operating system admins. If it does not, this is a finding. | The runtime status of the fs.protected_hardlinks kernel parameter can be queried
by running the following command:
$ sysctl fs.protected_hardlinks 1.
Is it the case that the correct value is not returned? |
Configure the operating system to allow operating system admins to grant their privileges to other operating system admins. | To set the runtime status of the fs.protected_hardlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_hardlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_hardlinks = 1 |
medium | |||
| CCI-002165 | SRG-OS-000312-GPOS-00123 | TBD - Assigned by DISA after STIG release | The operating system must allow operating system admins to grant their privileges to other operating system admins. | CCE-81030-9: Enable Kernel Parameter to Enforce DAC on Symlinks | Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have discretion over who should be authorized to access the object and in which mode (e.g., read or write). Ownership is usually acquired as a consequence of creating the object or via specified ownership assignment. DAC allows the owner to determine who will have access to objects they control. An example of DAC includes user-controlled file permissions. When discretionary access control policies are implemented, subjects are not constrained with regard to what actions they can take with information for which they have already been granted access. Thus, subjects that have been granted access to information are not prevented from passing (i.e., the subjects have the discretion to pass) the information to other subjects or objects. A subject that is constrained in its operation by Mandatory Access Control policies is still able to operate under the less rigorous constraints of this requirement. Thus, while Mandatory Access Control imposes constraints preventing a subject from passing information to another subject operating at a different sensitivity level, this requirement permits the subject to pass the information to any subject at the same sensitivity level. The policy is bounded by the information system boundary. Once the information is passed outside the control of the information system, additional means may be required to ensure the constraints remain in effect. While the older, more traditional definitions of discretionary access control require identity-based access control, that limitation is not required for this use of discretionary access control. | To set the runtime status of the fs.protected_symlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_symlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_symlinks = 1 |
Applicable - Configurable | Verify the operating system allows operating system admins to grant their privileges to other operating system admins. If it does not, this is a finding. | The runtime status of the fs.protected_symlinks kernel parameter can be queried
by running the following command:
$ sysctl fs.protected_symlinks 1.
Is it the case that the correct value is not returned? |
Configure the operating system to allow operating system admins to grant their privileges to other operating system admins. | To set the runtime status of the fs.protected_symlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_symlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_symlinks = 1 |
medium | |||
| V-57229 | SRG-OS-000312-GPOS-00124 | TBD - Assigned by DISA after STIG release | The operating system must allow operating system admins to change security attributes on users, the operating system, or the operating systems components. | Discretionary Access Control (DAC) is based on the notion that individual users are "owners" of objects and therefore have discretion over who should be authorized to access the object and in which mode (e.g., read or write). Ownership is usually acquired as a consequence of creating the object or via specified ownership assignment. DAC allows the owner to determine who will have access to objects they control. An example of DAC includes user-controlled file permissions. When discretionary access control policies are implemented, subjects are not constrained with regard to what actions they can take with information for which they have already been granted access. Thus, subjects that have been granted access to information are not prevented from passing (i.e., the subjects have the discretion to pass) the information to other subjects or objects. A subject that is constrained in its operation by Mandatory Access Control policies is still able to operate under the less rigorous constraints of this requirement. Thus, while Mandatory Access Control imposes constraints preventing a subject from passing information to another subject operating at a different sensitivity level, this requirement permits the subject to pass the information to any subject at the same sensitivity level. The policy is bounded by the information system boundary. Once the information is passed outside the control of the information system, additional means may be required to ensure the constraints remain in effect. While the older, more traditional definitions of discretionary access control require identity-based access control, that limitation is not required for this use of discretionary access control. | |||||||||||
| CCI-002235 | SRG-OS-000324-GPOS-00125 | TBD - Assigned by DISA after STIG release | The operating system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | CCE-80784-2: Disable Ctrl-Alt-Del Burst Action | Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users. | By default, SystemD will reboot the system if the Ctrl-Alt-Del
key sequence is pressed Ctrl-Alt-Delete more than 7 times in 2 seconds.
To configure the system to ignore the CtrlAltDelBurstAction setting, add or modify the following to /etc/systemd/system.conf: CtrlAltDelBurstAction=none |
Applicable - Configurable | Verify that the operating system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. If it does not, this is a finding. | To ensure the system is configured to ignore the Ctrl-Alt-Del setting,
enter the following command:
$ sudo grep -i ctrlaltdelburstaction /etc/systemd/system.confThe output should return: CtrlAltDelBurstAction=noneIs it the case that the system is configured to reboot when Ctrl-Alt-Del is pressed more than 7 times in 2 seconds.? |
Configure the operating system to prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | By default, SystemD will reboot the system if the Ctrl-Alt-Del
key sequence is pressed Ctrl-Alt-Delete more than 7 times in 2 seconds.
To configure the system to ignore the CtrlAltDelBurstAction setting, add or modify the following to /etc/systemd/system.conf: CtrlAltDelBurstAction=none |
high | |||
| CCI-002235 | SRG-OS-000324-GPOS-00125 | TBD - Assigned by DISA after STIG release | The operating system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | CCE-80785-9: Disable Ctrl-Alt-Del Reboot Activation | Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users. | By default, SystemD will reboot the system if the Ctrl-Alt-Del
key sequence is pressed.
To configure the system to ignore the Ctrl-Alt-Del key sequence from the command line instead of rebooting the system, do either of the following: ln -sf /dev/null /etc/systemd/system/ctrl-alt-del.targetor systemctl mask ctrl-alt-del.target Do not simply delete the /usr/lib/systemd/system/ctrl-alt-del.service file, as this file may be restored during future system updates. |
Applicable - Configurable | Verify that the operating system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. If it does not, this is a finding. | To ensure the system is configured to mask the Ctrl-Alt-Del sequence, Check
that the ctrl-alt-del.target is masked and not active with the following
command:
sudo systemctl status ctrl-alt-del.targetThe output should indicate that the target is masked and not active. It might resemble following output: ctrl-alt-del.target Loaded: masked (/dev/null; bad) Active: inactive (dead)Is it the case that the system is configured to reboot when Ctrl-Alt-Del is pressed? |
Configure the operating system to prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | By default, SystemD will reboot the system if the Ctrl-Alt-Del
key sequence is pressed.
To configure the system to ignore the Ctrl-Alt-Del key sequence from the command line instead of rebooting the system, do either of the following: ln -sf /dev/null /etc/systemd/system/ctrl-alt-del.targetor systemctl mask ctrl-alt-del.target Do not simply delete the /usr/lib/systemd/system/ctrl-alt-del.service file, as this file may be restored during future system updates. |
high | |||
| CCI-002235 | SRG-OS-000324-GPOS-00125 | TBD - Assigned by DISA after STIG release | The operating system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | CCE-86353-0: Map System Users To The Appropriate SELinux Role | Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users. | Configure the operating system to prevent non-privileged users from executing
privileged functions to include disabling, circumventing, or altering
implemented security safeguards/countermeasures. All administrators must be
mapped to the sysadm_u or staff_u users with the
appropriate domains (sysadm_t and staff_t).
$ sudo semanage login -m -s sysadm_u USERor $ sudo semanage login -m -s staff_u USER All authorized non-administrative users must be mapped to the user_u role or the appropriate domain (user_t). $ sudo semanage login -m -s user_u USER |
Applicable - Configurable | Verify that the operating system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. If it does not, this is a finding. | To verify the operating system prevents non-privileged users from executing
privileged functions to include disabling, circumventing, or altering
implemented security safeguards/countermeasures, run the following
command:
$ sudo semanage login -lAll administrators must be mapped to the sysadm_u or staff_u users with the appropriate domains (sysadm_t and staff_t). All authorized non-administrative users must be mapped to the user_u role or the appropriate domain (user_t). Is it the case that non-admin users are not confined correctly? |
Configure the operating system to prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | Configure the operating system to prevent non-privileged users from executing
privileged functions to include disabling, circumventing, or altering
implemented security safeguards/countermeasures. All administrators must be
mapped to the sysadm_u or staff_u users with the
appropriate domains (sysadm_t and staff_t).
$ sudo semanage login -m -s sysadm_u USERor $ sudo semanage login -m -s staff_u USER All authorized non-administrative users must be mapped to the user_u role or the appropriate domain (user_t). $ sudo semanage login -m -s user_u USER |
medium | |||
| CCI-002235 | SRG-OS-000324-GPOS-00125 | TBD - Assigned by DISA after STIG release | The operating system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | CCE-80876-6: Disable debug-shell SystemD Service | Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users. | SystemD's debug-shell service is intended to
diagnose SystemD related boot issues with various systemctl
commands. Once enabled and following a system reboot, the root shell
will be available on tty9 which is access by pressing
CTRL-ALT-F9. The debug-shell service should only be used
for SystemD related issues and should otherwise be disabled.
By default, the debug-shell SystemD service is already disabled. The debug-shell service can be disabled with the following command:
$ sudo systemctl mask --now debug-shell.service |
Applicable - Configurable | Verify that the operating system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. If it does not, this is a finding. | To check that the debug-shell service is disabled in system boot configuration,
run the following command:
$ sudo systemctl is-enabled
Output should indicate the debug-shell service has either not been installed,
or has been disabled at all runlevels, as shown in the example below:
$ sudo systemctl is-enabledRun the following command to verify debug-shell is not active (i.e. not running) through current runtime configuration:
$ sudo systemctl is-active debug-shellIf the service is not running the command will return the following output: inactiveThe service will also be masked, to check that the debug-shell is masked, run the following command:
$ sudo systemctl show
If the service is masked the command will return the following outputs:
LoadState=masked UnitFileState=maskedIs it the case that the "debug-shell" is loaded and not masked? |
Configure the operating system to prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | SystemD's debug-shell service is intended to
diagnose SystemD related boot issues with various systemctl
commands. Once enabled and following a system reboot, the root shell
will be available on tty9 which is access by pressing
CTRL-ALT-F9. The debug-shell service should only be used
for SystemD related issues and should otherwise be disabled.
By default, the debug-shell SystemD service is already disabled. The debug-shell service can be disabled with the following command:
$ sudo systemctl mask --now debug-shell.service |
medium | |||
| CCI-002235 | SRG-OS-000324-GPOS-00125 | TBD - Assigned by DISA after STIG release | The operating system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | CCE-81027-5: Enable Kernel Parameter to Enforce DAC on Hardlinks | Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users. | To set the runtime status of the fs.protected_hardlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_hardlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_hardlinks = 1 |
Applicable - Configurable | Verify that the operating system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. If it does not, this is a finding. | The runtime status of the fs.protected_hardlinks kernel parameter can be queried
by running the following command:
$ sysctl fs.protected_hardlinks 1.
Is it the case that the correct value is not returned? |
Configure the operating system to prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | To set the runtime status of the fs.protected_hardlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_hardlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_hardlinks = 1 |
medium | |||
| CCI-002235 | SRG-OS-000324-GPOS-00125 | TBD - Assigned by DISA after STIG release | The operating system must prevent nonprivileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | CCE-81030-9: Enable Kernel Parameter to Enforce DAC on Symlinks | Preventing non-privileged users from executing privileged functions mitigates the risk that unauthorized individuals or processes may gain unnecessary access to information or privileges. Privileged functions include, for example, establishing accounts, performing system integrity checks, or administering cryptographic key management activities. Non-privileged users are individuals that do not possess appropriate authorizations. Circumventing intrusion detection and prevention mechanisms or malicious code protection mechanisms are examples of privileged functions that require protection from non-privileged users. | To set the runtime status of the fs.protected_symlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_symlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_symlinks = 1 |
Applicable - Configurable | Verify that the operating system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. If it does not, this is a finding. | The runtime status of the fs.protected_symlinks kernel parameter can be queried
by running the following command:
$ sysctl fs.protected_symlinks 1.
Is it the case that the correct value is not returned? |
Configure the operating system to prevent non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. | To set the runtime status of the fs.protected_symlinks kernel parameter, run the following command: $ sudo sysctl -w fs.protected_symlinks=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: fs.protected_symlinks = 1 |
medium | |||
| CCI-002233 | SRG-OS-000326-GPOS-00126 | TBD - Assigned by DISA after STIG release | The operating system must prevent all software from executing at higher privilege levels than users executing the software. | CCE-83556-1: Record Events When Privileged Executables Are Run | In certain situations, software applications/programs need to execute with elevated privileges to perform required functions. However, if the privileges required for execution are at a higher level than the privileges assigned to organizational users invoking such applications/programs, those users are indirectly provided with greater privileges than assigned by the organizations. Some programs and processes are required to operate at a higher privilege level and therefore should be excluded from the organization-defined software list after review. | Verify the system generates an audit record when privileged functions are executed.
If audit is using the "auditctl" tool to load the rules, run the following command:
$ sudo grep execve /etc/audit/audit.rulesIf audit is using the "augenrules" tool to load the rules, run the following command: $ sudo grep -r execve /etc/audit/rules.d -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIf both the "b32" and "b64" audit rules for "SUID" files are not defined, this is a finding. If both the "b32" and "b64" audit rules for "SGID" files are not defined, this is a finding. |
Applicable - Configurable | Verify that the operating system prevents all software from executing at higher privilege levels than users executing the software. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 audits the execution of privileged functions.
Check if Red Hat Enterprise Linux 8 is configured to audit the execution of the "execve" system call using the following command:
$ sudo grep execve /etc/audit/audit.rulesThe output should be the following: -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIs it the case that the command does not return all lines, or the lines are commented out? |
Configure the operating system to prevent all software from executing at higher privilege levels than users executing the software. | Verify the system generates an audit record when privileged functions are executed.
If audit is using the "auditctl" tool to load the rules, run the following command:
$ sudo grep execve /etc/audit/audit.rulesIf audit is using the "augenrules" tool to load the rules, run the following command: $ sudo grep -r execve /etc/audit/rules.d -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIf both the "b32" and "b64" audit rules for "SUID" files are not defined, this is a finding. If both the "b32" and "b64" audit rules for "SGID" files are not defined, this is a finding. |
medium | |||
| CCI-002234 | SRG-OS-000327-GPOS-00127 | TBD - Assigned by DISA after STIG release | The operating system must audit the execution of privileged functions. | CCE-83556-1: Record Events When Privileged Executables Are Run | Misuse of privileged functions, either intentionally or unintentionally by authorized users, or by unauthorized external entities that have compromised information system accounts, is a serious and ongoing concern and can have significant adverse impacts on organizations. Auditing the use of privileged functions is one way to detect such misuse and identify the risk from insider threats and the advanced persistent threat. | Verify the system generates an audit record when privileged functions are executed.
If audit is using the "auditctl" tool to load the rules, run the following command:
$ sudo grep execve /etc/audit/audit.rulesIf audit is using the "augenrules" tool to load the rules, run the following command: $ sudo grep -r execve /etc/audit/rules.d -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIf both the "b32" and "b64" audit rules for "SUID" files are not defined, this is a finding. If both the "b32" and "b64" audit rules for "SGID" files are not defined, this is a finding. |
Applicable - Configurable | Verify that the operating system audits the execution of privileged functions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 audits the execution of privileged functions.
Check if Red Hat Enterprise Linux 8 is configured to audit the execution of the "execve" system call using the following command:
$ sudo grep execve /etc/audit/audit.rulesThe output should be the following: -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIs it the case that the command does not return all lines, or the lines are commented out? |
Configure the operating system to audit the execution of privileged functions. | Verify the system generates an audit record when privileged functions are executed.
If audit is using the "auditctl" tool to load the rules, run the following command:
$ sudo grep execve /etc/audit/audit.rulesIf audit is using the "augenrules" tool to load the rules, run the following command: $ sudo grep -r execve /etc/audit/rules.d -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIf both the "b32" and "b64" audit rules for "SUID" files are not defined, this is a finding. If both the "b32" and "b64" audit rules for "SGID" files are not defined, this is a finding. |
medium | |||
| CCI-002238 | SRG-OS-000329-GPOS-00128 | TBD - Assigned by DISA after STIG release | The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur. | CCE-80667-9: Lock Accounts After Failed Password Attempts | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. | This rule configures the system to lock out accounts after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. Ensure that the file /etc/security/faillock.conf contains the following entry: deny = <count> Where count should be less than or equal to and greater than 0. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | Applicable - Configurable | Verify the operating system automatically locks an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is configured to lock an account after
unsuccessful logon attempts with the command:
$ grep 'deny =' /etc/security/faillock.confdeny = . Is it the case that the "deny" option is not set to "" or less (but not "0"), is missing or commented out? |
Configure the operating system to automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. | This rule configures the system to lock out accounts after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. Ensure that the file /etc/security/faillock.conf contains the following entry: deny = <count> Where count should be less than or equal to and greater than 0. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | medium | |||
| CCI-002238 | SRG-OS-000329-GPOS-00128 | TBD - Assigned by DISA after STIG release | The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur. | CCE-80668-7: Configure the root Account for Failed Password Attempts | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. | This rule configures the system to lock out the root account after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | Applicable - Configurable | Verify the operating system automatically locks an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is configured to lock the root account after
unsuccessful logon attempts with the command:
$ grep even_deny_root /etc/security/faillock.confeven_deny_root Is it the case that the "even_deny_root" option is not set, is missing or commented out? |
Configure the operating system to automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. | This rule configures the system to lock out the root account after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | medium | |||
| CCI-002238 | SRG-OS-000329-GPOS-00128 | TBD - Assigned by DISA after STIG release | The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur. | CCE-86067-6: Lock Accounts Must Persist | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. | This rule ensures that the system lock out accounts using pam_faillock.so persist
after system reboot. From "pam_faillock" man pages:
Note that the default directory that "pam_faillock" uses is usually cleared on system boot so the access will be reenabled after system reboot. If that is undesirable, a different tally directory must be set with the "dir" option.pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. The chosen profile expects the directory to be . |
Applicable - Configurable | Verify the operating system automatically locks an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. If it does not, this is a finding. | To ensure the tally directory is configured correctly, run the following command:
$ sudo grep 'dir =' /etc/security/faillock.confThe output should show that dir is set to something other than "/var/run/faillock" Is it the case that the "dir" option is not set to a non-default documented tally log directory, is missing or commented out? |
Configure the operating system to automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. | This rule ensures that the system lock out accounts using pam_faillock.so persist
after system reboot. From "pam_faillock" man pages:
Note that the default directory that "pam_faillock" uses is usually cleared on system boot so the access will be reenabled after system reboot. If that is undesirable, a different tally directory must be set with the "dir" option.pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. The chosen profile expects the directory to be . |
medium | |||
| CCI-002238 | SRG-OS-000329-GPOS-00128 | TBD - Assigned by DISA after STIG release | The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur. | CCE-80669-5: Set Interval For Counting Failed Password Attempts | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. | Utilizing pam_faillock.so, the fail_interval directive configures the system to lock out an account after a number of incorrect login attempts within a specified time period. Ensure that the file /etc/security/faillock.conf contains the following entry: fail_interval = <interval-in-seconds> where interval-in-seconds is or greater. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | Applicable - Configurable | Verify the operating system automatically locks an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. If it does not, this is a finding. | To ensure the failed password attempt policy is configured correctly, run the following command:
$ grep fail_interval /etc/security/faillock.confThe output should show fail_interval = <interval-in-seconds> where interval-in-seconds is or greater. Is it the case that the "fail_interval" option is not set to "" or less (but not "0"), the line is commented out, or the line is missing? |
Configure the operating system to automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. | Utilizing pam_faillock.so, the fail_interval directive configures the system to lock out an account after a number of incorrect login attempts within a specified time period. Ensure that the file /etc/security/faillock.conf contains the following entry: fail_interval = <interval-in-seconds> where interval-in-seconds is or greater. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | medium | |||
| CCI-002238 | SRG-OS-000329-GPOS-00128 | TBD - Assigned by DISA after STIG release | The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur. | CCE-87096-4: Do Not Show System Messages When Unsuccessful Logon Attempts Occur | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. | This rule ensures the system prevents informative messages from being presented to the user pertaining to logon information after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | Applicable - Configurable | Verify the operating system automatically locks an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. If it does not, this is a finding. | To ensure that the system prevents messages from being shown when three unsuccessful logon
attempts occur, run the following command:
$ grep silent /etc/security/faillock.confThe output should show silent. Is it the case that the system shows messages when three unsuccessful logon attempts occur? |
Configure the operating system to automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. | This rule ensures the system prevents informative messages from being presented to the user pertaining to logon information after a number of incorrect login attempts using pam_faillock.so. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. | medium | |||
| CCI-002238 | SRG-OS-000329-GPOS-00128 | TBD - Assigned by DISA after STIG release | The operating system must automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes occur. | CCE-80670-3: Set Lockout Time for Failed Password Attempts | By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account. | This rule configures the system to lock out accounts during a specified time period after a number of incorrect login attempts using pam_faillock.so. Ensure that the file /etc/security/faillock.conf contains the following entry: unlock_time=<interval-in-seconds> where interval-in-seconds is or greater. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid any errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. If unlock_time is set to 0, manual intervention by an administrator is required to unlock a user. This should be done using the faillock tool. | Applicable - Configurable | Verify the operating system automatically locks an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is configured to lock an account until released by an administrator
after unsuccessful logon
attempts with the command:
$ grep 'unlock_time =' /etc/security/faillock.confunlock_time = Is it the case that the "unlock_time" option is not set to "", the line is missing, or commented out? |
Configure the operating system to automatically lock an account until the locked account is released by an administrator when three unsuccessful logon attempts in 15 minutes are made. | This rule configures the system to lock out accounts during a specified time period after a number of incorrect login attempts using pam_faillock.so. Ensure that the file /etc/security/faillock.conf contains the following entry: unlock_time=<interval-in-seconds> where interval-in-seconds is or greater. pam_faillock.so module requires multiple entries in pam files. These entries must be carefully defined to work as expected. In order to avoid any errors when manually editing these files, it is recommended to use the appropriate tools, such as authselect or authconfig, depending on the OS version. If unlock_time is set to 0, manual intervention by an administrator is required to unlock a user. This should be done using the faillock tool. | medium | |||
| CCI-001914 | SRG-OS-000337-GPOS-00129 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability for assigned IMOs/ISSOs or designated SAs to change the auditing to be performed on all operating system components, based on all selectable event criteria in near real time. | CCE-81043-2: Ensure the audit Subsystem is Installed | If authorized individuals do not have the ability to modify auditing parameters in response to a changing threat environment, the organization may not be able to effectively respond, and important forensic information may be lost. This requirement enables organizations to extend or limit auditing as necessary to meet organizational requirements. Auditing that is limited to conserve information system resources may be extended to address certain threat situations. In addition, auditing may be limited to a specific set of events to facilitate audit reduction, analysis, and reporting. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides the capability for assigned IMOs/ISSOs or designated SAs to change the auditing to be performed on all operating system components, based on all selectable event criteria in near real time. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to provide the capability for assigned IMOs/ISSOs or designated SAs to change the auditing to be performed on all operating system components, based on all selectable event criteria in near real time. | The audit package should be installed. | medium | |||
| CCI-001914 | SRG-OS-000337-GPOS-00129 | TBD - Assigned by DISA after STIG release | The operating system must provide the capability for assigned IMOs/ISSOs or designated SAs to change the auditing to be performed on all operating system components, based on all selectable event criteria in near real time. | CCE-80872-5: Enable auditd Service | If authorized individuals do not have the ability to modify auditing parameters in response to a changing threat environment, the organization may not be able to effectively respond, and important forensic information may be lost. This requirement enables organizations to extend or limit auditing as necessary to meet organizational requirements. Auditing that is limited to conserve information system resources may be extended to address certain threat situations. In addition, auditing may be limited to a specific set of events to facilitate audit reduction, analysis, and reporting. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides the capability for assigned IMOs/ISSOs or designated SAs to change the auditing to be performed on all operating system components, based on all selectable event criteria in near real time. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to provide the capability for assigned IMOs/ISSOs or designated SAs to change the auditing to be performed on all operating system components, based on all selectable event criteria in near real time. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001849 | SRG-OS-000341-GPOS-00132 | TBD - Assigned by DISA after STIG release | The operating system must allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. | CCE-84005-8: Configure a Sufficiently Large Partition for Audit Logs | In order to ensure operating systems have a sufficient storage capacity in which to write the audit logs, operating systems need to be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually performed during initial installation of the operating system. | The Red Hat Enterprise Linux 8 operating system must allocate audit record storage
capacity to store at least one weeks worth of audit records when audit
records are not immediately sent to a central audit record storage
facility.
The partition size needed to capture a week's worth of audit records is
based on the activity level of the system and the total storage capacity
available.
In normal circumstances, 10.0 GB of storage space for audit
records will be sufficient.
Determine which partition the audit records are being written to with the
following command:
$ sudo grep log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logCheck the size of the partition that audit records are written to with the following command: $ sudo df -h /var/log/audit/ /dev/sda2 24G 10.4G 13.6G 43% /var/log/audit |
Applicable - Configurable | Verify the operating system allocates audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. If it does not, this is a finding. | To verify whether audispd plugin off-loads audit records onto a different
system or media from the system being audited, run the following command:
$ sudo grep -i remote_server /etc/audit/audisp-remote.confThe output should return something similar to where REMOTE_SYSTEM is an IP address or hostname: remote_server = REMOTE_SYSTEMDetermine which partition the audit records are being written to with the following command: $ sudo grep log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logCheck the size of the partition that audit records are written to with the following command and verify whether it is sufficiently large: $ sudo df -h /var/log/audit/ /dev/sda2 24G 10.4G 13.6G 43% /var/log/auditIs it the case that audispd is not sending logs to a remote system and the local partition has inadequate space? |
Configure the operating system to allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. | The Red Hat Enterprise Linux 8 operating system must allocate audit record storage
capacity to store at least one weeks worth of audit records when audit
records are not immediately sent to a central audit record storage
facility.
The partition size needed to capture a week's worth of audit records is
based on the activity level of the system and the total storage capacity
available.
In normal circumstances, 10.0 GB of storage space for audit
records will be sufficient.
Determine which partition the audit records are being written to with the
following command:
$ sudo grep log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logCheck the size of the partition that audit records are written to with the following command: $ sudo df -h /var/log/audit/ /dev/sda2 24G 10.4G 13.6G 43% /var/log/audit |
medium | |||
| CCI-001849 | SRG-OS-000341-GPOS-00132 | TBD - Assigned by DISA after STIG release | The operating system must allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. | CCE-80943-4: Extend Audit Backlog Limit for the Audit Daemon | In order to ensure operating systems have a sufficient storage capacity in which to write the audit logs, operating systems need to be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually performed during initial installation of the operating system. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
Applicable - Configurable | Verify the operating system allocates audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit_backlog_limit=8192,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit_backlog_limit=8192.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit_backlog_limit=8192.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit_backlog_limit=8192'The command should not return any output. Is it the case that audit backlog limit is not configured? |
Configure the operating system to allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
low | |||
| CCI-001849 | SRG-OS-000341-GPOS-00132 | TBD - Assigned by DISA after STIG release | The operating system must allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. | CCE-80854-3: Ensure /var/log/audit Located On Separate Partition | In order to ensure operating systems have a sufficient storage capacity in which to write the audit logs, operating systems need to be able to allocate audit record storage capacity. The task of allocating audit record storage capacity is usually performed during initial installation of the operating system. | Audit logs are stored in the /var/log/audit directory.
Ensure that /var/log/audit has its own partition or logical
volume at installation time, or migrate it using LVM.
Make absolutely certain that it is large enough to store all
audit logs that will be created by the auditing daemon. |
Applicable - Configurable | Verify the operating system allocates audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. If it does not, this is a finding. | Verify that a separate file system/partition has been created for /var/log/audit with the following command:
$ mountpoint /var/log/auditIs it the case that "/var/log/audit is not a mountpoint" is returned? |
Configure the operating system to allocate audit record storage capacity to store at least one week's worth of audit records, when audit records are not immediately sent to a central audit record storage facility. | Audit logs are stored in the /var/log/audit directory.
Ensure that /var/log/audit has its own partition or logical
volume at installation time, or migrate it using LVM.
Make absolutely certain that it is large enough to store all
audit logs that will be created by the auditing daemon. |
low | |||
| CCI-001851 | SRG-OS-000342-GPOS-00133 | TBD - Assigned by DISA after STIG release | The operating system must offload audit records onto a different system or media from the system being audited. | CCE-84005-8: Configure a Sufficiently Large Partition for Audit Logs | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | The Red Hat Enterprise Linux 8 operating system must allocate audit record storage
capacity to store at least one weeks worth of audit records when audit
records are not immediately sent to a central audit record storage
facility.
The partition size needed to capture a week's worth of audit records is
based on the activity level of the system and the total storage capacity
available.
In normal circumstances, 10.0 GB of storage space for audit
records will be sufficient.
Determine which partition the audit records are being written to with the
following command:
$ sudo grep log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logCheck the size of the partition that audit records are written to with the following command: $ sudo df -h /var/log/audit/ /dev/sda2 24G 10.4G 13.6G 43% /var/log/audit |
Applicable - Configurable | Verify the operating system off-loads audit records onto a different system or media from the system being audited. If it does not, this is a finding. | To verify whether audispd plugin off-loads audit records onto a different
system or media from the system being audited, run the following command:
$ sudo grep -i remote_server /etc/audit/audisp-remote.confThe output should return something similar to where REMOTE_SYSTEM is an IP address or hostname: remote_server = REMOTE_SYSTEMDetermine which partition the audit records are being written to with the following command: $ sudo grep log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logCheck the size of the partition that audit records are written to with the following command and verify whether it is sufficiently large: $ sudo df -h /var/log/audit/ /dev/sda2 24G 10.4G 13.6G 43% /var/log/auditIs it the case that audispd is not sending logs to a remote system and the local partition has inadequate space? |
Configure the operating system to off-load audit records onto a different system or media from the system being audited. | The Red Hat Enterprise Linux 8 operating system must allocate audit record storage
capacity to store at least one weeks worth of audit records when audit
records are not immediately sent to a central audit record storage
facility.
The partition size needed to capture a week's worth of audit records is
based on the activity level of the system and the total storage capacity
available.
In normal circumstances, 10.0 GB of storage space for audit
records will be sufficient.
Determine which partition the audit records are being written to with the
following command:
$ sudo grep log_file /etc/audit/auditd.conf log_file = /var/log/audit/audit.logCheck the size of the partition that audit records are written to with the following command: $ sudo df -h /var/log/audit/ /dev/sda2 24G 10.4G 13.6G 43% /var/log/audit |
medium | |||
| CCI-001851 | SRG-OS-000342-GPOS-00133 | TBD - Assigned by DISA after STIG release | The operating system must offload audit records onto a different system or media from the system being audited. | CCE-82897-0: Set type of computer node name logging in audit logs | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | To configure Audit daemon to use a unique identifier as computer node name in the audit events, set name_format to in /etc/audit/auditd.conf. | Applicable - Configurable | Verify the operating system off-loads audit records onto a different system or media from the system being audited. If it does not, this is a finding. | To verify that Audit Daemon is configured to record the computer node
name in the audit events, run the following command:
$ sudo grep name_format /etc/audit/auditd.confThe output should return the following: name_format =Is it the case that name_format isn't set to ? |
Configure the operating system to off-load audit records onto a different system or media from the system being audited. | To configure Audit daemon to use a unique identifier as computer node name in the audit events, set name_format to in /etc/audit/auditd.conf. | medium | |||
| CCI-001851 | SRG-OS-000342-GPOS-00133 | TBD - Assigned by DISA after STIG release | The operating system must offload audit records onto a different system or media from the system being audited. | CCE-85889-4: Appropriate Action Must be Setup When the Internal Audit Event Queue is Full | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | The audit system should have an action setup in the event the internal event queue becomes full. To setup an overflow action edit /etc/audit/auditd.conf. Set overflow_action to one of the following values: syslog, single, halt. | Applicable - Configurable | Verify the operating system off-loads audit records onto a different system or media from the system being audited. If it does not, this is a finding. | Verify the audit system is configured to take an appropriate action when the internal event queue is full:
$ sudo grep -i overflow_action /etc/audit/auditd.confThe output should contain overflow_action = syslog If the value of the "overflow_action" option is not set to syslog, single, halt or the line is commented out, ask the System Administrator to indicate how the audit logs are off-loaded to a different system or media. Is it the case that auditd overflow action is not set correctly? |
Configure the operating system to off-load audit records onto a different system or media from the system being audited. | The audit system should have an action setup in the event the internal event queue becomes full. To setup an overflow action edit /etc/audit/auditd.conf. Set overflow_action to one of the following values: syslog, single, halt. | medium | |||
| CCI-001851 | SRG-OS-000342-GPOS-00133 | TBD - Assigned by DISA after STIG release | The operating system must offload audit records onto a different system or media from the system being audited. | CCE-86339-9: Ensure Rsyslog Authenticates Off-Loaded Audit Records | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs the remote system must be authenticated.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$ActionSendStreamDriverAuthMode x509/nameAlternatively, use the RainerScript syntax: action(type="omfwd" Target="some.example.com" StreamDriverAuthMode="x509/name") |
Applicable - Configurable | Verify the operating system off-loads audit records onto a different system or media from the system being audited. If it does not, this is a finding. | Verify the operating system authenticates the remote logging server for off-loading audit logs with the following command:
$ sudo grep -i '$ActionSendStreamDriverAuthMode' /etc/rsyslog.conf /etc/rsyslog.d/*.confThe output should be $/etc/rsyslog.conf:$ActionSendStreamDriverAuthMode x509/nameIs it the case that $ActionSendStreamDriverAuthMode in /etc/rsyslog.conf is not set to x509/name? |
Configure the operating system to off-load audit records onto a different system or media from the system being audited. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs the remote system must be authenticated.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$ActionSendStreamDriverAuthMode x509/nameAlternatively, use the RainerScript syntax: action(type="omfwd" Target="some.example.com" StreamDriverAuthMode="x509/name") |
medium | |||
| CCI-001851 | SRG-OS-000342-GPOS-00133 | TBD - Assigned by DISA after STIG release | The operating system must offload audit records onto a different system or media from the system being audited. | CCE-86098-1: Ensure Rsyslog Encrypts Off-Loaded Audit Records | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs off a encrpytion system must be used.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$ActionSendStreamDriverMode 1Alternatively, use the RainerScript syntax: action(type="omfwd" ... StreamDriverMode="1") |
Applicable - Configurable | Verify the operating system off-loads audit records onto a different system or media from the system being audited. If it does not, this is a finding. | Verify the operating system encrypts audit records off-loaded onto a different system
or media from the system being audited with the following commands:
$ sudo grep -i '$ActionSendStreamDriverMode' /etc/rsyslog.conf /etc/rsyslog.d/*.confThe output should be: /etc/rsyslog.conf:$ActionSendStreamDriverMode 1Is it the case that rsyslogd ActionSendStreamDriverMode is not set to 1? |
Configure the operating system to off-load audit records onto a different system or media from the system being audited. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs off a encrpytion system must be used.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$ActionSendStreamDriverMode 1Alternatively, use the RainerScript syntax: action(type="omfwd" ... StreamDriverMode="1") |
medium | |||
| CCI-001851 | SRG-OS-000342-GPOS-00133 | TBD - Assigned by DISA after STIG release | The operating system must offload audit records onto a different system or media from the system being audited. | CCE-85992-6: Ensure Rsyslog Encrypts Off-Loaded Audit Records | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs off an encryption system must be used.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$DefaultNetstreamDriver gtlsAlternatively, use the RainerScript syntax: global(DefaultNetstreamDriver="gtls") |
Applicable - Configurable | Verify the operating system off-loads audit records onto a different system or media from the system being audited. If it does not, this is a finding. | Verify the operating system encrypts audit records off-loaded onto a different system
or media from the system being audited with the following commands:
$ sudo grep -i '$DefaultNetstreamDriver' /etc/rsyslog.conf /etc/rsyslog.d/*.confThe output should be: /etc/rsyslog.conf:$DefaultNetstreamDriver gtlsIs it the case that rsyslogd DefaultNetstreamDriver not set to gtls? |
Configure the operating system to off-load audit records onto a different system or media from the system being audited. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs off an encryption system must be used.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$DefaultNetstreamDriver gtlsAlternatively, use the RainerScript syntax: global(DefaultNetstreamDriver="gtls") |
medium | |||
| CCI-001851 | SRG-OS-000342-GPOS-00133 | TBD - Assigned by DISA after STIG release | The operating system must offload audit records onto a different system or media from the system being audited. | CCE-80863-4: Ensure Logs Sent To Remote Host | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | To configure rsyslog to send logs to a remote log server,
open /etc/rsyslog.conf and read and understand the last section of the file,
which describes the multiple directives necessary to activate remote
logging.
Along with these other directives, the system can be configured
to forward its logs to a particular log server by
adding or correcting one of the following lines,
substituting appropriately.
The choice of protocol depends on the environment of the system;
although TCP and RELP provide more reliable message delivery,
they may not be supported in all environments.
To use UDP for log message delivery: *.* @ To use TCP for log message delivery: *.* @@ To use RELP for log message delivery: *.* :omrelp: There must be a resolvable DNS CNAME or Alias record set to "" for logs to be sent correctly to the centralized logging utility. |
Applicable - Configurable | Verify the operating system off-loads audit records onto a different system or media from the system being audited. If it does not, this is a finding. | To ensure logs are sent to a remote host, examine the file
/etc/rsyslog.conf.
If using UDP, a line similar to the following should be present:
*.* @If using TCP, a line similar to the following should be present: *.* @@If using RELP, a line similar to the following should be present: *.* :omrelp:Is it the case that no evidence that the audit logs are being off-loaded to another system or media? |
Configure the operating system to off-load audit records onto a different system or media from the system being audited. | To configure rsyslog to send logs to a remote log server,
open /etc/rsyslog.conf and read and understand the last section of the file,
which describes the multiple directives necessary to activate remote
logging.
Along with these other directives, the system can be configured
to forward its logs to a particular log server by
adding or correcting one of the following lines,
substituting appropriately.
The choice of protocol depends on the environment of the system;
although TCP and RELP provide more reliable message delivery,
they may not be supported in all environments.
To use UDP for log message delivery: *.* @ To use TCP for log message delivery: *.* @@ To use RELP for log message delivery: *.* :omrelp: There must be a resolvable DNS CNAME or Alias record set to "" for logs to be sent correctly to the centralized logging utility. |
medium | |||
| CCI-001855 | SRG-OS-000343-GPOS-00134 | TBD - Assigned by DISA after STIG release | The operating system must immediately notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity. | CCE-80678-6: Configure auditd mail_acct Action on Low Disk Space | If security personnel are not notified immediately when storage volume reaches 75% utilization, they are unable to plan for audit record storage capacity expansion. | The auditd service can be configured to send email to
a designated account in certain situations. Add or correct the following line
in /etc/audit/auditd.conf to ensure that administrators are notified
via email for those situations:
action_mail_acct = |
Applicable - Configurable | Verify the operating system immediately notifies the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to notify the SA and/or ISSO (at a minimum) in the event of an audit processing failure with the following command:
$ sudo grep action_mail_acct /etc/audit/auditd.conf action_mail_acct =Is it the case that the value of the "action_mail_acct" keyword is not set to "" and/or other accounts for security personnel, the "action_mail_acct" keyword is missing, or the retuned line is commented out, ask the system administrator to indicate how they and the ISSO are notified of an audit process failure. If there is no evidence of the proper personnel being notified of an audit processing failure? |
Configure the operating system to immediately notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity. | The auditd service can be configured to send email to
a designated account in certain situations. Add or correct the following line
in /etc/audit/auditd.conf to ensure that administrators are notified
via email for those situations:
action_mail_acct = |
medium | |||
| CCI-001855 | SRG-OS-000343-GPOS-00134 | TBD - Assigned by DISA after STIG release | The operating system must immediately notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity. | CCE-80684-4: Configure auditd space_left Action on Low Disk Space | If security personnel are not notified immediately when storage volume reaches 75% utilization, they are unable to plan for audit record storage capacity expansion. | The auditd service can be configured to take an action
when disk space starts to run low.
Edit the file /etc/audit/auditd.conf. Modify the following line,
substituting ACTION appropriately:
space_left_action = ACTIONPossible values for ACTION are described in the auditd.conf man page. These include:
|
Applicable - Configurable | Verify the operating system immediately notifies the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 notifies the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity with the following command:
$ sudo grep -w space_left_action /etc/audit/auditd.conf space_left_action =If the value of the "space_left_action" is not set to "", or if the line is commented out, ask the System Administrator to indicate how the system is providing real-time alerts to the SA and ISSO. Is it the case that there is no evidence that real-time alerts are configured on the system? |
Configure the operating system to immediately notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity. | The auditd service can be configured to take an action
when disk space starts to run low.
Edit the file /etc/audit/auditd.conf. Modify the following line,
substituting ACTION appropriately:
space_left_action = ACTIONPossible values for ACTION are described in the auditd.conf man page. These include:
|
medium | |||
| CCI-001855 | SRG-OS-000343-GPOS-00134 | TBD - Assigned by DISA after STIG release | The operating system must immediately notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity. | CCE-86055-1: Configure auditd space_left on Low Disk Space | If security personnel are not notified immediately when storage volume reaches 75% utilization, they are unable to plan for audit record storage capacity expansion. | The auditd service can be configured to take an action
when disk space is running low but prior to running out of space completely.
Edit the file /etc/audit/auditd.conf. Add or modify the following line,
substituting PERCENTAGE appropriately:
space_left = PERCENTAGE%Set this value to at least 25 to cause the system to notify the user of an issue. |
Applicable - Configurable | Verify the operating system immediately notifies the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 takes action when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity with the following command:
$ sudo grep -w space_left /etc/audit/auditd.conf space_left = %Is it the case that the value of the "space_left" keyword is not set to % of the storage volume allocated to audit logs, or if the line is commented out, ask the System Administrator to indicate how the system is providing real-time alerts to the SA and ISSO. If the "space_left" value is not configured to the correct value? |
Configure the operating system to immediately notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity. | The auditd service can be configured to take an action
when disk space is running low but prior to running out of space completely.
Edit the file /etc/audit/auditd.conf. Add or modify the following line,
substituting PERCENTAGE appropriately:
space_left = PERCENTAGE%Set this value to at least 25 to cause the system to notify the user of an issue. |
medium | |||
| SV-71511 | SRG-OS-000344-GPOS-00135 | TBD - Assigned by DISA after STIG release | The operating system must provide an immediate real-time alert to the SA and ISSO, at a minimum, of all audit failure events requiring real-time alerts. | It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without a real-time alert, security personnel may be unaware of an impending failure of the audit capability and system operation may be adversely affected. Alerts provide organizations with urgent messages. Real-time alerts provide these messages immediately (i.e., the time from event detection to alert occurs in seconds or less). | |||||||||||
| CCI-001875 | SRG-OS-000348-GPOS-00136 | TBD - Assigned by DISA after STIG release | The operating system must provide an audit reduction capability that supports on-demand audit review and analysis. | CCE-81043-2: Ensure the audit Subsystem is Installed | The ability to perform on-demand audit review and analysis, including after the audit data has been subjected to audit reduction, greatly facilitates the organization's ability to generate incident reports, as needed, to better handle larger-scale or more complex security incidents. Audit reduction is a technique used to reduce the volume of audit records in order to facilitate a manual review. Audit reduction does not alter original audit records. The report generation capability provided by the application must support on-demand (i.e., customizable, ad hoc, and as-needed) reports. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides an audit reduction capability that supports on-demand audit review and analysis. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to provide an audit reduction capability that supports on-demand audit review and analysis. | The audit package should be installed. | medium | |||
| CCI-001875 | SRG-OS-000348-GPOS-00136 | TBD - Assigned by DISA after STIG release | The operating system must provide an audit reduction capability that supports on-demand audit review and analysis. | CCE-80872-5: Enable auditd Service | The ability to perform on-demand audit review and analysis, including after the audit data has been subjected to audit reduction, greatly facilitates the organization's ability to generate incident reports, as needed, to better handle larger-scale or more complex security incidents. Audit reduction is a technique used to reduce the volume of audit records in order to facilitate a manual review. Audit reduction does not alter original audit records. The report generation capability provided by the application must support on-demand (i.e., customizable, ad hoc, and as-needed) reports. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides an audit reduction capability that supports on-demand audit review and analysis. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to provide an audit reduction capability that supports on-demand audit review and analysis. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001877 | SRG-OS-000349-GPOS-00137 | TBD - Assigned by DISA after STIG release | The operating system must provide an audit reduction capability that supports after-the-fact investigations of security incidents. | CCE-81043-2: Ensure the audit Subsystem is Installed | If the audit reduction capability does not support after-the-fact investigations, it is difficult to establish, correlate, and investigate the events leading up to an outage or attack or identify those responses for one. This capability is also required to comply with applicable Federal laws and DoD policies. Audit reduction capability must support after-the-fact investigations of security incidents either natively or through the use of third-party tools. This requirement is specific to operating systems with audit reduction capabilities. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides an audit reduction capability that supports after-the-fact investigations of security incidents. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to provide an audit reduction capability that supports after-the-fact investigations of security incidents. | The audit package should be installed. | medium | |||
| CCI-001877 | SRG-OS-000349-GPOS-00137 | TBD - Assigned by DISA after STIG release | The operating system must provide an audit reduction capability that supports after-the-fact investigations of security incidents. | CCE-80872-5: Enable auditd Service | If the audit reduction capability does not support after-the-fact investigations, it is difficult to establish, correlate, and investigate the events leading up to an outage or attack or identify those responses for one. This capability is also required to comply with applicable Federal laws and DoD policies. Audit reduction capability must support after-the-fact investigations of security incidents either natively or through the use of third-party tools. This requirement is specific to operating systems with audit reduction capabilities. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides an audit reduction capability that supports after-the-fact investigations of security incidents. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to provide an audit reduction capability that supports after-the-fact investigations of security incidents. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001878 | SRG-OS-000350-GPOS-00138 | TBD - Assigned by DISA after STIG release | The operating system must provide a report generation capability that supports on-demand audit review and analysis. | CCE-81043-2: Ensure the audit Subsystem is Installed | The report generation capability must support on-demand review and analysis in order to facilitate the organization's ability to generate incident reports, as needed, to better handle larger-scale or more complex security incidents. Report generation must be capable of generating on-demand (i.e., customizable, ad hoc, and as-needed) reports. On-demand reporting allows personnel to report issues more rapidly to more effectively meet reporting requirements. Collecting log data and aggregating it to present the data in a single, consolidated report achieves this objective. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides a report generation capability that supports on-demand audit review and analysis. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to provide a report generation capability that supports on-demand audit review and analysis. | The audit package should be installed. | medium | |||
| CCI-001878 | SRG-OS-000350-GPOS-00138 | TBD - Assigned by DISA after STIG release | The operating system must provide a report generation capability that supports on-demand audit review and analysis. | CCE-80872-5: Enable auditd Service | The report generation capability must support on-demand review and analysis in order to facilitate the organization's ability to generate incident reports, as needed, to better handle larger-scale or more complex security incidents. Report generation must be capable of generating on-demand (i.e., customizable, ad hoc, and as-needed) reports. On-demand reporting allows personnel to report issues more rapidly to more effectively meet reporting requirements. Collecting log data and aggregating it to present the data in a single, consolidated report achieves this objective. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides a report generation capability that supports on-demand audit review and analysis. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to provide a report generation capability that supports on-demand audit review and analysis. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001879 | SRG-OS-000351-GPOS-00139 | TBD - Assigned by DISA after STIG release | The operating system must provide a report generation capability that supports on-demand reporting requirements. | CCE-81043-2: Ensure the audit Subsystem is Installed | The report generation capability must support on-demand reporting in order to facilitate the organization's ability to generate incident reports, as needed, to better handle larger-scale or more complex security incidents. Report generation must be capable of generating on-demand (i.e., customizable, ad hoc, and as-needed) reports. On-demand reporting allows personnel to report issues more rapidly to more effectively meet reporting requirements. Collecting log data and aggregating it to present the data in a single, consolidated report achieves this objective. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides a report generation capability that supports on-demand reporting requirements. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Ensure the operating system provides a report generation capability that supports on-demand reporting requirements. | The audit package should be installed. | medium | |||
| CCI-001879 | SRG-OS-000351-GPOS-00139 | TBD - Assigned by DISA after STIG release | The operating system must provide a report generation capability that supports on-demand reporting requirements. | CCE-80872-5: Enable auditd Service | The report generation capability must support on-demand reporting in order to facilitate the organization's ability to generate incident reports, as needed, to better handle larger-scale or more complex security incidents. Report generation must be capable of generating on-demand (i.e., customizable, ad hoc, and as-needed) reports. On-demand reporting allows personnel to report issues more rapidly to more effectively meet reporting requirements. Collecting log data and aggregating it to present the data in a single, consolidated report achieves this objective. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides a report generation capability that supports on-demand reporting requirements. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Ensure the operating system provides a report generation capability that supports on-demand reporting requirements. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001880 | SRG-OS-000352-GPOS-00140 | TBD - Assigned by DISA after STIG release | The operating system must provide a report generation capability that supports after-the-fact investigations of security incidents. | CCE-81043-2: Ensure the audit Subsystem is Installed | If the report generation capability does not support after-the-fact investigations, it is difficult to establish, correlate, and investigate the events leading up to an outage or attack or identify those responses for one. This capability is also required to comply with applicable Federal laws and DoD policies. The report generation capability must support after-the-fact investigations of security incidents either natively or through the use of third-party tools. | The audit package should be installed. | Applicable - Configurable | Verify the operating system provides a report generation capability that supports after-the-fact investigations of security incidents. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Ensure the operating system provides a report generation capability that supports after-the-fact investigations of security incidents. | The audit package should be installed. | medium | |||
| CCI-001880 | SRG-OS-000352-GPOS-00140 | TBD - Assigned by DISA after STIG release | The operating system must provide a report generation capability that supports after-the-fact investigations of security incidents. | CCE-80872-5: Enable auditd Service | If the report generation capability does not support after-the-fact investigations, it is difficult to establish, correlate, and investigate the events leading up to an outage or attack or identify those responses for one. This capability is also required to comply with applicable Federal laws and DoD policies. The report generation capability must support after-the-fact investigations of security incidents either natively or through the use of third-party tools. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system provides a report generation capability that supports after-the-fact investigations of security incidents. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Ensure the operating system provides a report generation capability that supports after-the-fact investigations of security incidents. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001881 | SRG-OS-000353-GPOS-00141 | TBD - Assigned by DISA after STIG release | The operating system must not alter original content or time ordering of audit records when it provides an audit reduction capability. | CCE-81043-2: Ensure the audit Subsystem is Installed | If the audit reduction capability alters the content or time ordering of audit records, the integrity of the audit records is compromised, and the records are no longer usable for forensic analysis. Audit reduction is a process that manipulates collected audit information and organizes such information in a summary format that is more meaningful to analysts. Time ordering refers to the chronological organization of records based on time stamps. The degree of time stamp precision can affect this. This requirement is specific to operating systems providing audit reduction capabilities. The audit reduction capability can be met either natively or through the use of third-party tools. | The audit package should be installed. | Applicable - Configurable | Verify the operating system does not alter original content or time ordering of audit records when it provides an audit reduction capability. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to not alter original content or time ordering of audit records when it provides an audit reduction capability. | The audit package should be installed. | medium | |||
| CCI-001881 | SRG-OS-000353-GPOS-00141 | TBD - Assigned by DISA after STIG release | The operating system must not alter original content or time ordering of audit records when it provides an audit reduction capability. | CCE-80872-5: Enable auditd Service | If the audit reduction capability alters the content or time ordering of audit records, the integrity of the audit records is compromised, and the records are no longer usable for forensic analysis. Audit reduction is a process that manipulates collected audit information and organizes such information in a summary format that is more meaningful to analysts. Time ordering refers to the chronological organization of records based on time stamps. The degree of time stamp precision can affect this. This requirement is specific to operating systems providing audit reduction capabilities. The audit reduction capability can be met either natively or through the use of third-party tools. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system does not alter original content or time ordering of audit records when it provides an audit reduction capability. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to not alter original content or time ordering of audit records when it provides an audit reduction capability. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001882 | SRG-OS-000354-GPOS-00142 | TBD - Assigned by DISA after STIG release | The operating system must not alter original content or time ordering of audit records when it provides a report generation capability. | CCE-81043-2: Ensure the audit Subsystem is Installed | If the report generation capability alters the content or time ordering of audit records, the integrity of the audit records is compromised, and the records are no longer usable for forensic analysis. Time ordering refers to the chronological organization of records based on time stamps. The degree of time stamp precision can affect this. This requirement is specific to operating systems providing report generation capabilities. The report generation capability can be met either natively or through the use of third-party tools. | The audit package should be installed. | Applicable - Configurable | Verify the operating system does not alter original content or time ordering of audit records when it provides a report generation capability. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to not alter original content or time ordering of audit records when it provides a report generation capability. | The audit package should be installed. | medium | |||
| CCI-001882 | SRG-OS-000354-GPOS-00142 | TBD - Assigned by DISA after STIG release | The operating system must not alter original content or time ordering of audit records when it provides a report generation capability. | CCE-80872-5: Enable auditd Service | If the report generation capability alters the content or time ordering of audit records, the integrity of the audit records is compromised, and the records are no longer usable for forensic analysis. Time ordering refers to the chronological organization of records based on time stamps. The degree of time stamp precision can affect this. This requirement is specific to operating systems providing report generation capabilities. The report generation capability can be met either natively or through the use of third-party tools. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system does not alter original content or time ordering of audit records when it provides a report generation capability. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to not alter original content or time ordering of audit records when it provides a report generation capability. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-004923 | SRG-OS-000355-GPOS-00143 | TBD - Assigned by DISA after STIG release | The operating system must, for networked systems, compare internal information system clocks at least every 24 hours with a server which is synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). | CCE-84059-5: Configure Time Service Maxpoll Interval | Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Sources outside the configured acceptable allowance (drift) may be inaccurate. Synchronizing internal information system clocks provides uniformity of time stamps for information systems with multiple system clocks and systems connected over a network. Organizations should consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints). | The maxpoll should be configured to
in /etc/ntp.conf or
/etc/chrony.conf (or /etc/chrony.d/) to continuously poll time servers. To configure
maxpoll in /etc/ntp.conf or /etc/chrony.conf (or /etc/chrony.d/)
add the following after each server, pool or peer entry:
maxpollto server directives. If using chrony, any pool directives should be configured too. |
Applicable - Configurable | Verify the operating system, for networked systems, compares internal information system clocks at least every 24 hours with a serve synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is securely comparing internal information system clocks at a regular interval with an NTP server with the following command:
$ sudo grep maxpoll /etc/ntp.conf /etc/chrony.conf /etc/chrony.d/ server [ntp.server.name] iburst maxpoll. Is it the case that "maxpoll" has not been set to the value of "", is commented out, or is missing? |
Configure the operating system to, for networked systems, compare internal information system clocks at least every 24 hours with a server synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). | The maxpoll should be configured to
in /etc/ntp.conf or
/etc/chrony.conf (or /etc/chrony.d/) to continuously poll time servers. To configure
maxpoll in /etc/ntp.conf or /etc/chrony.conf (or /etc/chrony.d/)
add the following after each server, pool or peer entry:
maxpollto server directives. If using chrony, any pool directives should be configured too. |
medium | |||
| CCI-004923 | SRG-OS-000355-GPOS-00143 | TBD - Assigned by DISA after STIG release | The operating system must, for networked systems, compare internal information system clocks at least every 24 hours with a server which is synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). | CCE-86077-5: Ensure Chrony is only configured with the server directive | Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Sources outside the configured acceptable allowance (drift) may be inaccurate. Synchronizing internal information system clocks provides uniformity of time stamps for information systems with multiple system clocks and systems connected over a network. Organizations should consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints). | Check that Chrony only has time sources configured with the server directive. | Applicable - Configurable | Verify the operating system, for networked systems, compares internal information system clocks at least every 24 hours with a serve synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). If it does not, this is a finding. | Run the following command and verify that time sources are only configured with server directive:
# grep -E "^(server|pool)" /etc/chrony.confA line with the appropriate server should be returned, any line returned starting with pool is a finding. Is it the case that an authoritative remote time server is not configured or configured with pool directive? |
Configure the operating system to, for networked systems, compare internal information system clocks at least every 24 hours with a server synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). | Check that Chrony only has time sources configured with the server directive. | medium | |||
| CCI-004923 | SRG-OS-000355-GPOS-00143 | TBD - Assigned by DISA after STIG release | The operating system must, for networked systems, compare internal information system clocks at least every 24 hours with a server which is synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). | CCE-82873-1: A remote time server for Chrony is configured | Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Sources outside the configured acceptable allowance (drift) may be inaccurate. Synchronizing internal information system clocks provides uniformity of time stamps for information systems with multiple system clocks and systems connected over a network. Organizations should consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints). | Chrony is a daemon which implements the Network Time Protocol (NTP). It is designed
to synchronize system clocks across a variety of systems and use a source that is highly
accurate. More information on chrony can be found at
https://chrony-project.org/.
Chrony can be configured to be a client and/or a server.
Add or edit server or pool lines to /etc/chrony.conf as appropriate:
server <remote-server>Multiple servers may be configured. |
Applicable - Configurable | Verify the operating system, for networked systems, compares internal information system clocks at least every 24 hours with a serve synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). If it does not, this is a finding. | Run the following command and verify remote server is configured properly:
# grep -E "^(server|pool)" /etc/chrony.confIs it the case that a remote time server is not configured? |
Configure the operating system to, for networked systems, compare internal information system clocks at least every 24 hours with a server synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). | Chrony is a daemon which implements the Network Time Protocol (NTP). It is designed
to synchronize system clocks across a variety of systems and use a source that is highly
accurate. More information on chrony can be found at
https://chrony-project.org/.
Chrony can be configured to be a client and/or a server.
Add or edit server or pool lines to /etc/chrony.conf as appropriate:
server <remote-server>Multiple servers may be configured. |
medium | |||
| CCI-004926 | SRG-OS-000356-GPOS-00144 | TBD - Assigned by DISA after STIG release | The operating system must synchronize internal information system clocks to the authoritative time source when the time difference is greater than one second. | CCE-84059-5: Configure Time Service Maxpoll Interval | Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Synchronizing internal information system clocks provides uniformity of time stamps for information systems with multiple system clocks and systems connected over a network. Organizations should consider setting time periods for different types of systems (e.g., financial, legal, or mission-critical systems). Organizations should also consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints). This requirement is related to the comparison done every 24 hours in SRG-OS-000355 because a comparison must be done in order to determine the time difference. | The maxpoll should be configured to
in /etc/ntp.conf or
/etc/chrony.conf (or /etc/chrony.d/) to continuously poll time servers. To configure
maxpoll in /etc/ntp.conf or /etc/chrony.conf (or /etc/chrony.d/)
add the following after each server, pool or peer entry:
maxpollto server directives. If using chrony, any pool directives should be configured too. |
Applicable - Configurable | Verify the operating system synchronizes internal information system clocks to the authoritative time source when the time difference is greater than one second. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is securely comparing internal information system clocks at a regular interval with an NTP server with the following command:
$ sudo grep maxpoll /etc/ntp.conf /etc/chrony.conf /etc/chrony.d/ server [ntp.server.name] iburst maxpoll. Is it the case that "maxpoll" has not been set to the value of "", is commented out, or is missing? |
Configure the operating system to synchronize internal information system clocks to the authoritative time source when the time difference is greater than the organization-defined time period. | The maxpoll should be configured to
in /etc/ntp.conf or
/etc/chrony.conf (or /etc/chrony.d/) to continuously poll time servers. To configure
maxpoll in /etc/ntp.conf or /etc/chrony.conf (or /etc/chrony.d/)
add the following after each server, pool or peer entry:
maxpollto server directives. If using chrony, any pool directives should be configured too. |
medium | |||
| CCI-004926 | SRG-OS-000356-GPOS-00144 | TBD - Assigned by DISA after STIG release | The operating system must synchronize internal information system clocks to the authoritative time source when the time difference is greater than one second. | CCE-86077-5: Ensure Chrony is only configured with the server directive | Inaccurate time stamps make it more difficult to correlate events and can lead to an inaccurate analysis. Determining the correct time a particular event occurred on a system is critical when conducting forensic analysis and investigating system events. Synchronizing internal information system clocks provides uniformity of time stamps for information systems with multiple system clocks and systems connected over a network. Organizations should consider setting time periods for different types of systems (e.g., financial, legal, or mission-critical systems). Organizations should also consider endpoints that may not have regular access to the authoritative time server (e.g., mobile, teleworking, and tactical endpoints). This requirement is related to the comparison done every 24 hours in SRG-OS-000355 because a comparison must be done in order to determine the time difference. | Check that Chrony only has time sources configured with the server directive. | Applicable - Configurable | Verify the operating system synchronizes internal information system clocks to the authoritative time source when the time difference is greater than one second. If it does not, this is a finding. | Run the following command and verify that time sources are only configured with server directive:
# grep -E "^(server|pool)" /etc/chrony.confA line with the appropriate server should be returned, any line returned starting with pool is a finding. Is it the case that an authoritative remote time server is not configured or configured with pool directive? |
Configure the operating system to synchronize internal information system clocks to the authoritative time source when the time difference is greater than the organization-defined time period. | Check that Chrony only has time sources configured with the server directive. | medium | |||
| CCI-001889 | SRG-OS-000358-GPOS-00145 | TBD - Assigned by DISA after STIG release | The operating system must record time stamps for audit records that meet a minimum granularity of one second for a minimum degree of precision. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without sufficient granularity of time stamps, it is not possible to adequately determine the chronological order of records. Time stamps generated by the operating system include date and time. Granularity of time measurements refers to the degree of synchronization between information system clocks and reference clocks. | The audit package should be installed. | Applicable - Configurable | Verify the operating system records time stamps for audit records that meet a minimum granularity of one second for a minimum degree of precision. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to record time stamps for audit records that meet a minimum granularity of one second for a minimum degree of precision. | The audit package should be installed. | medium | |||
| CCI-001889 | SRG-OS-000358-GPOS-00145 | TBD - Assigned by DISA after STIG release | The operating system must record time stamps for audit records that meet a minimum granularity of one second for a minimum degree of precision. | CCE-80872-5: Enable auditd Service | Without sufficient granularity of time stamps, it is not possible to adequately determine the chronological order of records. Time stamps generated by the operating system include date and time. Granularity of time measurements refers to the degree of synchronization between information system clocks and reference clocks. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system records time stamps for audit records that meet a minimum granularity of one second for a minimum degree of precision. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to record time stamps for audit records that meet a minimum granularity of one second for a minimum degree of precision. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-001890 | SRG-OS-000359-GPOS-00146 | TBD - Assigned by DISA after STIG release | The operating system must record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). | CCE-84059-5: Configure Time Service Maxpoll Interval | If time stamps are not consistently applied and there is no common time reference, it is difficult to perform forensic analysis. Time stamps generated by the operating system include date and time. Time is commonly expressed in Coordinated Universal Time (UTC), a modern continuation of Greenwich Mean Time (GMT), or local time with an offset from UTC. | The maxpoll should be configured to
in /etc/ntp.conf or
/etc/chrony.conf (or /etc/chrony.d/) to continuously poll time servers. To configure
maxpoll in /etc/ntp.conf or /etc/chrony.conf (or /etc/chrony.d/)
add the following after each server, pool or peer entry:
maxpollto server directives. If using chrony, any pool directives should be configured too. |
Applicable - Configurable | Verify the operating system records time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 is securely comparing internal information system clocks at a regular interval with an NTP server with the following command:
$ sudo grep maxpoll /etc/ntp.conf /etc/chrony.conf /etc/chrony.d/ server [ntp.server.name] iburst maxpoll. Is it the case that "maxpoll" has not been set to the value of "", is commented out, or is missing? |
Configure the operating system to record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). | The maxpoll should be configured to
in /etc/ntp.conf or
/etc/chrony.conf (or /etc/chrony.d/) to continuously poll time servers. To configure
maxpoll in /etc/ntp.conf or /etc/chrony.conf (or /etc/chrony.d/)
add the following after each server, pool or peer entry:
maxpollto server directives. If using chrony, any pool directives should be configured too. |
medium | |||
| CCI-001890 | SRG-OS-000359-GPOS-00146 | TBD - Assigned by DISA after STIG release | The operating system must record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). | CCE-86077-5: Ensure Chrony is only configured with the server directive | If time stamps are not consistently applied and there is no common time reference, it is difficult to perform forensic analysis. Time stamps generated by the operating system include date and time. Time is commonly expressed in Coordinated Universal Time (UTC), a modern continuation of Greenwich Mean Time (GMT), or local time with an offset from UTC. | Check that Chrony only has time sources configured with the server directive. | Applicable - Configurable | Verify the operating system records time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). If it does not, this is a finding. | Run the following command and verify that time sources are only configured with server directive:
# grep -E "^(server|pool)" /etc/chrony.confA line with the appropriate server should be returned, any line returned starting with pool is a finding. Is it the case that an authoritative remote time server is not configured or configured with pool directive? |
Configure the operating system to record time stamps for audit records that can be mapped to Coordinated Universal Time (UTC) or Greenwich Mean Time (GMT). | Check that Chrony only has time sources configured with the server directive. | medium | |||
| V-57185 | SRG-OS-000360-GPOS-00147 | TBD - Assigned by DISA after STIG release | The operating system must enforce dual authorization for movement and/or deletion of all audit information, when such movement or deletion is not part of an authorized automatic process. | An authorized user may intentionally or accidentally move or delete audit records without those specific actions being authorized. All bulk manipulation of audit information must be authorized via automatic processes. Any manual manipulation of audit information must require dual authorization. Dual authorization mechanisms require the approval of two authorized individuals to execute. | |||||||||||
| SV-71441 | SRG-OS-000362-GPOS-00149 | TBD - Assigned by DISA after STIG release | The operating system must prohibit user installation of system software without explicit privileged status. | Allowing regular users to install software, without explicit privileges, creates the risk that untested or potentially malicious software will be installed on the system. Explicit privileges (escalated or administrative privileges) provide the regular user with explicit capabilities and control that exceeds the rights of a regular user. Operating system functionality will vary, and while users are not permitted to install unapproved software, there may be instances where the organization allows the user to install approved software packages, such as from an approved software repository. The operating system or software configuration management utility must enforce control of software installation by users based upon what types of software installations are permitted (e.g., updates and security patches to existing software) and what types of installations are prohibited (e.g., software whose pedigree with regard to being potentially malicious is unknown or suspect) by the organization. | |||||||||||
| CCI-001744 | SRG-OS-000363-GPOS-00150 | TBD - Assigned by DISA after STIG release | The operating system must notify designated personnel if baseline configurations are changed in an unauthorized manner. | CCE-82891-3: Configure Notification of Post-AIDE Scan Details | Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized access to the operating system. Changes to operating system configurations can have unintended side effects, some of which may be relevant to security. Detecting such changes and providing an automated response can help avoid unintended, negative consequences that could ultimately affect the security state of the operating system. The operating system's IMO/ISSO and SAs must be notified via email and/or monitoring system trap when there is an unauthorized modification of a configuration item. | AIDE should notify appropriate personnel of the details of a scan after the scan has been run.
If AIDE has already been configured for periodic execution in /etc/crontab, append the
following line to the existing AIDE line:
| /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostOtherwise, add the following line to /etc/crontab: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostAIDE can be executed periodically through other means; this is merely one example. |
Applicable - Configurable | Verify the operating system notifies designated personnel if baseline configurations are changed in an unauthorized manner. If it does not, this is a finding. | To determine that periodic AIDE execution has been scheduled, run the following command:
$ grep aide /etc/crontabThe output should return something similar to the following: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostThe email address that the notifications are sent to can be changed by overriding . Is it the case that AIDE has not been configured or has not been configured to notify personnel of scan details? |
Configure the operating system to notify designated personnel if baseline configurations are changed in an unauthorized manner. | AIDE should notify appropriate personnel of the details of a scan after the scan has been run.
If AIDE has already been configured for periodic execution in /etc/crontab, append the
following line to the existing AIDE line:
| /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostOtherwise, add the following line to /etc/crontab: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostAIDE can be executed periodically through other means; this is merely one example. |
medium | |||
| CCI-001744 | SRG-OS-000363-GPOS-00150 | TBD - Assigned by DISA after STIG release | The operating system must notify designated personnel if baseline configurations are changed in an unauthorized manner. | CCE-87036-0: The mailx Package Is Installed | Unauthorized changes to the baseline configuration could make the system vulnerable to various attacks or allow unauthorized access to the operating system. Changes to operating system configurations can have unintended side effects, some of which may be relevant to security. Detecting such changes and providing an automated response can help avoid unintended, negative consequences that could ultimately affect the security state of the operating system. The operating system's IMO/ISSO and SAs must be notified via email and/or monitoring system trap when there is an unauthorized modification of a configuration item. | A mail server is required for sending emails.
The mailx package can be installed with the following command:
$ sudo yum install mailx |
Applicable - Configurable | Verify the operating system notifies designated personnel if baseline configurations are changed in an unauthorized manner. If it does not, this is a finding. | Run the following command to determine if the mailx package is installed: $ rpm -q mailxIs it the case that the package is not installed? |
Configure the operating system to notify designated personnel if baseline configurations are changed in an unauthorized manner. | A mail server is required for sending emails.
The mailx package can be installed with the following command:
$ sudo yum install mailx |
medium | |||
| CCI-001813 | SRG-OS-000364-GPOS-00151 | TBD - Assigned by DISA after STIG release | The operating system must enforce access restrictions. | CCE-80897-2: Disable GSSAPI Authentication | Failure to provide logical access restrictions associated with changes to system configuration may have significant effects on the overall security of the system. When dealing with access restrictions pertaining to change control, it should be noted that any changes to the hardware, software, and/or firmware components of the operating system can have significant effects on the overall security of the system. Accordingly, only qualified and authorized individuals should be allowed to obtain access to operating system components for the purposes of initiating changes, including upgrades and modifications. Logical access restrictions include, for example, controls that restrict access to workflow automation, media libraries, abstract layers (e.g., changes implemented into third-party interfaces rather than directly into information systems), and change windows (e.g., changes occur only during specified times, making unauthorized changes easy to discover). | Unless needed, SSH should not permit extraneous or unnecessary
authentication mechanisms like GSSAPI.
The default SSH configuration disallows authentications based on GSSAPI. The appropriate configuration is used if no value is set for GSSAPIAuthentication. To explicitly disable GSSAPI authentication, add or correct the following line in /etc/ssh/sshd_config: GSSAPIAuthentication no |
Applicable - Configurable | Verify the operating system enforces access restrictions. If it does not, this is a finding. | To determine how the SSH daemon's GSSAPIAuthentication option is set, run the following command:
$ sudo grep -i GSSAPIAuthentication /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system to enforce access restrictions. | Unless needed, SSH should not permit extraneous or unnecessary
authentication mechanisms like GSSAPI.
The default SSH configuration disallows authentications based on GSSAPI. The appropriate configuration is used if no value is set for GSSAPIAuthentication. To explicitly disable GSSAPI authentication, add or correct the following line in /etc/ssh/sshd_config: GSSAPIAuthentication no |
medium | |||
| CCI-001813 | SRG-OS-000364-GPOS-00151 | TBD - Assigned by DISA after STIG release | The operating system must enforce access restrictions. | CCE-80898-0: Disable Kerberos Authentication | Failure to provide logical access restrictions associated with changes to system configuration may have significant effects on the overall security of the system. When dealing with access restrictions pertaining to change control, it should be noted that any changes to the hardware, software, and/or firmware components of the operating system can have significant effects on the overall security of the system. Accordingly, only qualified and authorized individuals should be allowed to obtain access to operating system components for the purposes of initiating changes, including upgrades and modifications. Logical access restrictions include, for example, controls that restrict access to workflow automation, media libraries, abstract layers (e.g., changes implemented into third-party interfaces rather than directly into information systems), and change windows (e.g., changes occur only during specified times, making unauthorized changes easy to discover). | Unless needed, SSH should not permit extraneous or unnecessary
authentication mechanisms like Kerberos.
The default SSH configuration disallows authentication validation through Kerberos. The appropriate configuration is used if no value is set for KerberosAuthentication. To explicitly disable Kerberos authentication, add or correct the following line in /etc/ssh/sshd_config: KerberosAuthentication no |
Applicable - Configurable | Verify the operating system enforces access restrictions. If it does not, this is a finding. | To determine how the SSH daemon's KerberosAuthentication option is set, run the following command:
$ sudo grep -i KerberosAuthentication /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system to enforce access restrictions. | Unless needed, SSH should not permit extraneous or unnecessary
authentication mechanisms like Kerberos.
The default SSH configuration disallows authentication validation through Kerberos. The appropriate configuration is used if no value is set for KerberosAuthentication. To explicitly disable Kerberos authentication, add or correct the following line in /etc/ssh/sshd_config: KerberosAuthentication no |
medium | |||
| CCI-003938 | SRG-OS-000365-GPOS-00152 | TBD - Assigned by DISA after STIG release | The operating system must audit the enforcement actions used to restrict access associated with changes to the system. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without auditing the enforcement of access restrictions against changes to the application configuration, it will be difficult to identify attempted attacks and an audit trail will not be available for forensic investigation for after-the-fact actions. Enforcement actions are the methods or mechanisms used to prevent unauthorized changes to configuration settings. Enforcement action methods may be as simple as denying access to a file based on the application of file permissions (access restriction). Audit items may consist of lists of actions blocked by access restrictions or changes identified after the fact. | The audit package should be installed. | Applicable - Configurable | Verify the operating system audits the enforcement actions used to restrict access associated with changes to the system. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to audit the enforcement actions used to restrict access associated with changes to the system. | The audit package should be installed. | medium | |||
| CCI-003938 | SRG-OS-000365-GPOS-00152 | TBD - Assigned by DISA after STIG release | The operating system must audit the enforcement actions used to restrict access associated with changes to the system. | CCE-80872-5: Enable auditd Service | Without auditing the enforcement of access restrictions against changes to the application configuration, it will be difficult to identify attempted attacks and an audit trail will not be available for forensic investigation for after-the-fact actions. Enforcement actions are the methods or mechanisms used to prevent unauthorized changes to configuration settings. Enforcement action methods may be as simple as denying access to a file based on the application of file permissions (access restriction). Audit items may consist of lists of actions blocked by access restrictions or changes identified after the fact. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system audits the enforcement actions used to restrict access associated with changes to the system. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to audit the enforcement actions used to restrict access associated with changes to the system. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-003992 | SRG-OS-000366-GPOS-00153 | TBD - Assigned by DISA after STIG release | The operating system must prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. | CCE-80790-9: Ensure gpgcheck Enabled In Main yum Configuration | Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor. Accordingly, patches, service packs, device drivers, or operating system components must be signed with a certificate recognized and approved by the organization. Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The operating system should not have to verify the software again. This requirement does not mandate DOD certificates for this purpose; however, the certificate used to verify the software must be from an approved CA. | The gpgcheck option controls whether
RPM packages' signatures are always checked prior to installation.
To configure yum to check package signatures before installing
them, ensure the following line appears in /etc/yum.conf in
the [main] section:
gpgcheck=1 |
Applicable - Configurable | Verify the operating system prevents the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. If it does not, this is a finding. | Verify that yum verifies the signature of packages from a repository prior to install with the following command:
$ grep gpgcheck /etc/yum.conf gpgcheck=1If "gpgcheck" is not set to "1", or if the option is missing or commented out, ask the System Administrator how the certificates for patches and other operating system components are verified. Is it the case that there is no process to validate certificates that is approved by the organization? |
Configure the operating system to prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate recognized and approved by the organization. | The gpgcheck option controls whether
RPM packages' signatures are always checked prior to installation.
To configure yum to check package signatures before installing
them, ensure the following line appears in /etc/yum.conf in
the [main] section:
gpgcheck=1 |
high | |||
| CCI-003992 | SRG-OS-000366-GPOS-00153 | TBD - Assigned by DISA after STIG release | The operating system must prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. | CCE-80791-7: Ensure gpgcheck Enabled for Local Packages | Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor. Accordingly, patches, service packs, device drivers, or operating system components must be signed with a certificate recognized and approved by the organization. Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The operating system should not have to verify the software again. This requirement does not mandate DOD certificates for this purpose; however, the certificate used to verify the software must be from an approved CA. | yum should be configured to verify the signature(s) of local packages prior to installation. To configure yum to verify signatures of local packages, set the localpkg_gpgcheck to 1 in /etc/yum.conf. | Applicable - Configurable | Verify the operating system prevents the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. If it does not, this is a finding. | Verify that yum verifies the signature of local packages prior to install with the following command:
$ grep localpkg_gpgcheck /etc/yum.conf localpkg_gpgcheck=1If "localpkg_gpgcheck" is not set to "1", or if the option is missing or commented out, ask the System Administrator how the certificates for patches and other operating system components are verified. Is it the case that there is no process to validate certificates for local packages that is approved by the organization? |
Configure the operating system to prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate recognized and approved by the organization. | yum should be configured to verify the signature(s) of local packages prior to installation. To configure yum to verify signatures of local packages, set the localpkg_gpgcheck to 1 in /etc/yum.conf. | high | |||
| CCI-003992 | SRG-OS-000366-GPOS-00153 | TBD - Assigned by DISA after STIG release | The operating system must prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. | CCE-80792-5: Ensure gpgcheck Enabled for All yum Package Repositories | Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor. Accordingly, patches, service packs, device drivers, or operating system components must be signed with a certificate recognized and approved by the organization. Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The operating system should not have to verify the software again. This requirement does not mandate DOD certificates for this purpose; however, the certificate used to verify the software must be from an approved CA. | To ensure signature checking is not disabled for
any repos, remove any lines from files in /etc/yum.repos.d of the form:
gpgcheck=0 |
Applicable - Configurable | Verify the operating system prevents the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. If it does not, this is a finding. | To determine whether yum has been configured to disable
gpgcheck for any repos, inspect all files in
/etc/yum.repos.d and ensure the following does not appear in any
sections:
gpgcheck=0A value of 0 indicates that gpgcheck has been disabled for that repo. Is it the case that GPG checking is disabled? |
Configure the operating system to prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate recognized and approved by the organization. | To ensure signature checking is not disabled for
any repos, remove any lines from files in /etc/yum.repos.d of the form:
gpgcheck=0 |
high | |||
| CCI-003992 | SRG-OS-000366-GPOS-00153 | TBD - Assigned by DISA after STIG release | The operating system must prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. | CCE-80795-8: Ensure Red Hat GPG Key Installed | Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor. Accordingly, patches, service packs, device drivers, or operating system components must be signed with a certificate recognized and approved by the organization. Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The operating system should not have to verify the software again. This requirement does not mandate DOD certificates for this purpose; however, the certificate used to verify the software must be from an approved CA. | To ensure the system can cryptographically verify base software packages
come from Red Hat (and to connect to the Red Hat Network to receive them),
the Red Hat GPG key must properly be installed. To install the Red Hat GPG
key, run:
$ sudo subscription-manager registerIf the system is not connected to the Internet or an RHN Satellite, then install the Red Hat GPG key from trusted media such as the Red Hat installation CD-ROM or DVD. Assuming the disc is mounted in /media/cdrom, use the following command as the root user to import it into the keyring: $ sudo rpm --import /media/cdrom/RPM-GPG-KEYAlternatively, the key may be pre-loaded during the RHEL installation. In such cases, the key can be installed by running the following command: sudo rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release |
Applicable - Configurable | Verify the operating system prevents the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. If it does not, this is a finding. | To ensure that the GPG key is installed, run:
$ rpm -q --queryformat "%{SUMMARY}\n" gpg-pubkey
The command should return the string below:
gpg(Red Hat, Inc. (release key 2) <security@redhat.com>Is it the case that the Red Hat GPG Key is not installed? |
Configure the operating system to prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate recognized and approved by the organization. | To ensure the system can cryptographically verify base software packages
come from Red Hat (and to connect to the Red Hat Network to receive them),
the Red Hat GPG key must properly be installed. To install the Red Hat GPG
key, run:
$ sudo subscription-manager registerIf the system is not connected to the Internet or an RHN Satellite, then install the Red Hat GPG key from trusted media such as the Red Hat installation CD-ROM or DVD. Assuming the disc is mounted in /media/cdrom, use the following command as the root user to import it into the keyring: $ sudo rpm --import /media/cdrom/RPM-GPG-KEYAlternatively, the key may be pre-loaded during the RHEL installation. In such cases, the key can be installed by running the following command: sudo rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release |
high | |||
| CCI-003992 | SRG-OS-000366-GPOS-00153 | TBD - Assigned by DISA after STIG release | The operating system must prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. | CCE-80952-5: Disable Kernel Image Loading | Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and that it has been provided by a trusted vendor. Accordingly, patches, service packs, device drivers, or operating system components must be signed with a certificate recognized and approved by the organization. Verifying the authenticity of the software prior to installation validates the integrity of the patch or upgrade received from a vendor. This ensures the software has not been tampered with and that it has been provided by a trusted vendor. Self-signed certificates are disallowed by this requirement. The operating system should not have to verify the software again. This requirement does not mandate DOD certificates for this purpose; however, the certificate used to verify the software must be from an approved CA. | To set the runtime status of the kernel.kexec_load_disabled kernel parameter, run the following command: $ sudo sysctl -w kernel.kexec_load_disabled=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kexec_load_disabled = 1 |
Applicable - Configurable | Verify the operating system prevents the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate that is recognized and approved by the organization. If it does not, this is a finding. | The runtime status of the kernel.kexec_load_disabled kernel parameter can be queried
by running the following command:
$ sysctl kernel.kexec_load_disabled 1.
Is it the case that the correct value is not returned? |
Configure the operating system to prevent the installation of patches, service packs, device drivers, or operating system components without verification they have been digitally signed using a certificate recognized and approved by the organization. | To set the runtime status of the kernel.kexec_load_disabled kernel parameter, run the following command: $ sudo sysctl -w kernel.kexec_load_disabled=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kexec_load_disabled = 1 |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-86478-5: Configure Fapolicy Module to Employ a Deny-all, Permit-by-exception Policy to Allow the Execution of Authorized Software Programs. | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The Fapolicy module must be configured to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs and to prevent unauthorized software from running. | Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the Red Hat Enterprise Linux 8 "fapolicyd" employs a deny-all, permit-by-exception policy. Check that "fapolicyd" is in enforcement mode with the following command: $ sudo grep permissive /etc/fapolicyd/fapolicyd.conf permissive = 0 Check that fapolicyd employs a deny-all policy on system mounts with the following commands: For RHEL 8.5 systems and older: $ sudo tail /etc/fapolicyd/fapolicyd.rules For RHEL 8.6 systems and newer: $ sudo tail /etc/fapolicyd/compiled.rules allow exe=/usr/bin/python3.7 : ftype=text/x-python deny_audit perm=any pattern=ld_so : all deny perm=any all : all Is it the case that fapolicyd is not running in enforcement mode with a deny-all, permit-by-exception policy? | Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The Fapolicy module must be configured to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs and to prevent unauthorized software from running. | medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-81033-3: Add nosuid Option to /boot | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nosuid mount option can be used to prevent
execution of setuid programs in /boot. The SUID and SGID permissions
should not be required on the boot partition.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/boot. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nosuid option is configured for the /boot mount point,
run the following command:
$ sudo mount | grep '\s/boot\s' . . . /boot . . . nosuid . . .Is it the case that the "/boot" file system does not have the "nosuid" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nosuid mount option can be used to prevent
execution of setuid programs in /boot. The SUID and SGID permissions
should not be required on the boot partition.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/boot. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-80837-8: Add nodev Option to /dev/shm | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nodev mount option can be used to prevent creation of device
files in /dev/shm. Legitimate character and block devices should
not exist within temporary directories like /dev/shm.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/dev/shm. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nodev option is configured for the /dev/shm mount point,
run the following command:
$ sudo mount | grep '\s/dev/shm\s' . . . /dev/shm . . . nodev . . .Is it the case that the "/dev/shm" file system does not have the "nodev" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nodev mount option can be used to prevent creation of device
files in /dev/shm. Legitimate character and block devices should
not exist within temporary directories like /dev/shm.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/dev/shm. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-80838-6: Add noexec Option to /dev/shm | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The noexec mount option can be used to prevent binaries
from being executed out of /dev/shm.
It can be dangerous to allow the execution of binaries
from world-writable temporary storage directories such as /dev/shm.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/dev/shm. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the noexec option is configured for the /dev/shm mount point,
run the following command:
$ sudo mount | grep '\s/dev/shm\s' . . . /dev/shm . . . noexec . . .Is it the case that the "/dev/shm" file system does not have the "noexec" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The noexec mount option can be used to prevent binaries
from being executed out of /dev/shm.
It can be dangerous to allow the execution of binaries
from world-writable temporary storage directories such as /dev/shm.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/dev/shm. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-80839-4: Add nosuid Option to /dev/shm | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nosuid mount option can be used to prevent execution
of setuid programs in /dev/shm. The SUID and SGID permissions should not
be required in these world-writable directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/dev/shm. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nosuid option is configured for the /dev/shm mount point,
run the following command:
$ sudo mount | grep '\s/dev/shm\s' . . . /dev/shm . . . nosuid . . .Is it the case that the "/dev/shm" file system does not have the "nosuid" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nosuid mount option can be used to prevent execution
of setuid programs in /dev/shm. The SUID and SGID permissions should not
be required in these world-writable directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/dev/shm. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-81050-7: Add nosuid Option to /home | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nosuid mount option can be used to prevent
execution of setuid programs in /home. The SUID and SGID permissions
should not be required in these user data directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/home. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nosuid option is configured for the /home mount point,
run the following command:
$ sudo mount | grep '\s/home\s' . . . /home . . . nosuid . . .Is it the case that the "/home" file system does not have the "nosuid" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nosuid mount option can be used to prevent
execution of setuid programs in /home. The SUID and SGID permissions
should not be required in these user data directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/home. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82069-6: Add nodev Option to Non-Root Local Partitions | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nodev mount option prevents files from being interpreted as
character or block devices. Legitimate character and block devices should
exist only in the /dev directory on the root partition or within
chroot jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
any non-root local partitions. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | To verify the nodev option is configured for non-root local partitions, run the following command:
$ sudo mount | grep '^/dev\S* on /\S' | grep --invert-match 'nodev'The output shows local non-root partitions mounted without the nodev option, and there should be no output at all. Is it the case that some mounts appear among output lines? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nodev mount option prevents files from being interpreted as
character or block devices. Legitimate character and block devices should
exist only in the /dev directory on the root partition or within
chroot jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
any non-root local partitions. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82623-0: Add nodev Option to /tmp | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nodev mount option can be used to prevent device files from
being created in /tmp. Legitimate character and block devices
should not exist within temporary directories like /tmp.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/tmp. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nodev option is configured for the /tmp mount point,
run the following command:
$ sudo mount | grep '\s/tmp\s' . . . /tmp . . . nodev . . .Is it the case that the "/tmp" file system does not have the "nodev" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nodev mount option can be used to prevent device files from
being created in /tmp. Legitimate character and block devices
should not exist within temporary directories like /tmp.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/tmp. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82139-7: Add noexec Option to /tmp | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The noexec mount option can be used to prevent binaries
from being executed out of /tmp.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/tmp. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the noexec option is configured for the /tmp mount point,
run the following command:
$ sudo mount | grep '\s/tmp\s' . . . /tmp . . . noexec . . .Is it the case that the "/tmp" file system does not have the "noexec" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The noexec mount option can be used to prevent binaries
from being executed out of /tmp.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/tmp. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82140-5: Add nosuid Option to /tmp | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nosuid mount option can be used to prevent
execution of setuid programs in /tmp. The SUID and SGID permissions
should not be required in these world-writable directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/tmp. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nosuid option is configured for the /tmp mount point,
run the following command:
$ sudo mount | grep '\s/tmp\s' . . . /tmp . . . nosuid . . .Is it the case that the "/tmp" file system does not have the "nosuid" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nosuid mount option can be used to prevent
execution of setuid programs in /tmp. The SUID and SGID permissions
should not be required in these world-writable directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/tmp. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82080-3: Add nodev Option to /var/log/audit | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nodev mount option can be used to prevent device files from
being created in /var/log/audit.
Legitimate character and block devices should exist only in
the /dev directory on the root partition or within chroot
jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log/audit. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nodev option is configured for the /var/log/audit mount point,
run the following command:
$ sudo mount | grep '\s/var/log/audit\s' . . . /var/log/audit . . . nodev . . .Is it the case that the "/var/log/audit" file system does not have the "nodev" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nodev mount option can be used to prevent device files from
being created in /var/log/audit.
Legitimate character and block devices should exist only in
the /dev directory on the root partition or within chroot
jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log/audit. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82975-4: Add noexec Option to /var/log/audit | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The noexec mount option can be used to prevent binaries
from being executed out of /var/log/audit.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log/audit. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the noexec option is configured for the /var/log/audit mount point,
run the following command:
$ sudo mount | grep '\s/var/log/audit\s' . . . /var/log/audit . . . noexec . . .Is it the case that the "/var/log/audit" file system does not have the "noexec" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The noexec mount option can be used to prevent binaries
from being executed out of /var/log/audit.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log/audit. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82921-8: Add nosuid Option to /var/log/audit | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nosuid mount option can be used to prevent
execution of setuid programs in /var/log/audit. The SUID and SGID permissions
should not be required in directories containing audit log files.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log/audit. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nosuid option is configured for the /var/log/audit mount point,
run the following command:
$ sudo mount | grep '\s/var/log/audit\s' . . . /var/log/audit . . . nosuid . . .Is it the case that the "/var/log/audit" file system does not have the "nosuid" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nosuid mount option can be used to prevent
execution of setuid programs in /var/log/audit. The SUID and SGID permissions
should not be required in directories containing audit log files.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log/audit. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82077-9: Add nodev Option to /var/log | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nodev mount option can be used to prevent device files from
being created in /var/log.
Legitimate character and block devices should exist only in
the /dev directory on the root partition or within chroot
jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nodev option is configured for the /var/log mount point,
run the following command:
$ sudo mount | grep '\s/var/log\s' . . . /var/log . . . nodev . . .Is it the case that the "/var/log" file system does not have the "nodev" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nodev mount option can be used to prevent device files from
being created in /var/log.
Legitimate character and block devices should exist only in
the /dev directory on the root partition or within chroot
jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82008-4: Add noexec Option to /var/log | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The noexec mount option can be used to prevent binaries
from being executed out of /var/log.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the noexec option is configured for the /var/log mount point,
run the following command:
$ sudo mount | grep '\s/var/log\s' . . . /var/log . . . noexec . . .Is it the case that the "/var/log" file system does not have the "noexec" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The noexec mount option can be used to prevent binaries
from being executed out of /var/log.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82065-4: Add nosuid Option to /var/log | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nosuid mount option can be used to prevent
execution of setuid programs in /var/log. The SUID and SGID permissions
should not be required in directories containing log files.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nosuid option is configured for the /var/log mount point,
run the following command:
$ sudo mount | grep '\s/var/log\s' . . . /var/log . . . nosuid . . .Is it the case that the "/var/log" file system does not have the "nosuid" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nosuid mount option can be used to prevent
execution of setuid programs in /var/log. The SUID and SGID permissions
should not be required in directories containing log files.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/log. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82068-8: Add nodev Option to /var/tmp | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nodev mount option can be used to prevent device files from
being created in /var/tmp. Legitimate character and block devices
should not exist within temporary directories like /var/tmp.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/tmp. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nodev option is configured for the /var/tmp mount point,
run the following command:
$ sudo mount | grep '\s/var/tmp\s' . . . /var/tmp . . . nodev . . .Is it the case that the "/var/tmp" file system does not have the "nodev" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nodev mount option can be used to prevent device files from
being created in /var/tmp. Legitimate character and block devices
should not exist within temporary directories like /var/tmp.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/tmp. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82151-2: Add noexec Option to /var/tmp | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The noexec mount option can be used to prevent binaries
from being executed out of /var/tmp.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/tmp. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the noexec option is configured for the /var/tmp mount point,
run the following command:
$ sudo mount | grep '\s/var/tmp\s' . . . /var/tmp . . . noexec . . .Is it the case that the "/var/tmp" file system does not have the "noexec" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The noexec mount option can be used to prevent binaries
from being executed out of /var/tmp.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/tmp. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82154-6: Add nosuid Option to /var/tmp | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The nosuid mount option can be used to prevent
execution of setuid programs in /var/tmp. The SUID and SGID permissions
should not be required in these world-writable directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/tmp. |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Verify the nosuid option is configured for the /var/tmp mount point,
run the following command:
$ sudo mount | grep '\s/var/tmp\s' . . . /var/tmp . . . nosuid . . .Is it the case that the "/var/tmp" file system does not have the "nosuid" option set? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The nosuid mount option can be used to prevent
execution of setuid programs in /var/tmp. The SUID and SGID permissions
should not be required in these world-writable directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/var/tmp. |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82191-8: Install fapolicyd Package | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The fapolicyd package can be installed with the following command:
$ sudo yum install fapolicyd |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. | Run the following command to determine if the fapolicyd package is installed: $ rpm -q fapolicydIs it the case that the fapolicyd package is not installed? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The fapolicyd package can be installed with the following command:
$ sudo yum install fapolicyd |
medium | |||
| CCI-001764 | SRG-OS-000368-GPOS-00154 | TBD - Assigned by DISA after STIG release | The operating system must prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | CCE-82249-4: Enable the File Access Policy Service | Control of program execution is a mechanism used to prevent execution of unauthorized programs. Some operating systems may provide a capability that runs counter to the mission or provides users with functionality that exceeds mission requirements. This includes functions and services installed at the operating system-level. Some of the programs, installed by default, may be harmful or may not be necessary to support essential organizational operations (e.g., key missions, functions). Removal of executable programs is not always possible; therefore, establishing a method of preventing program execution is critical to maintaining a secure system baseline. Methods for complying with this requirement include restricting execution of programs in certain environments, while preventing execution in other environments; or limiting execution of certain program functionality based on organization-defined criteria (e.g., privileges, subnets, sandboxed environments, or roles). | The File Access Policy service should be enabled.
The fapolicyd service can be enabled with the following command:
$ sudo systemctl enable fapolicyd.service |
Applicable - Configurable | Verify the operating system prevents program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. If it does not, this is a finding. |
Run the following command to determine the current status of the
fapolicyd service:
$ sudo systemctl is-active fapolicydIf the service is running, it should return the following: activeIs it the case that the service is not enabled? |
Configure the operating system to prevent program execution in accordance with local policies regarding software program usage and restrictions and/or rules authorizing the terms and conditions of software program usage. | The File Access Policy service should be enabled.
The fapolicyd service can be enabled with the following command:
$ sudo systemctl enable fapolicyd.service |
medium | |||
| CCI-001774 | SRG-OS-000370-GPOS-00155 | TBD - Assigned by DISA after STIG release | The operating system must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. | CCE-86478-5: Configure Fapolicy Module to Employ a Deny-all, Permit-by-exception Policy to Allow the Execution of Authorized Software Programs. | Utilizing a whitelist provides a configuration management method for allowing the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities. The organization must identify authorized software programs and permit execution of authorized software. The process used to identify software programs that are authorized to execute on organizational information systems is commonly referred to as whitelisting. Verification of white-listed software occurs prior to execution or at system startup. This requirement applies to operating system programs, functions, and services designed to manage system processes and configurations (e.g., group policies). | The Fapolicy module must be configured to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs and to prevent unauthorized software from running. | Applicable - Configurable | Verify the operating system employs a deny-all, permit-by-exception policy to allow the execution of authorized software programs. If it does not, this is a finding. | Verify the Red Hat Enterprise Linux 8 "fapolicyd" employs a deny-all, permit-by-exception policy. Check that "fapolicyd" is in enforcement mode with the following command: $ sudo grep permissive /etc/fapolicyd/fapolicyd.conf permissive = 0 Check that fapolicyd employs a deny-all policy on system mounts with the following commands: For RHEL 8.5 systems and older: $ sudo tail /etc/fapolicyd/fapolicyd.rules For RHEL 8.6 systems and newer: $ sudo tail /etc/fapolicyd/compiled.rules allow exe=/usr/bin/python3.7 : ftype=text/x-python deny_audit perm=any pattern=ld_so : all deny perm=any all : all Is it the case that fapolicyd is not running in enforcement mode with a deny-all, permit-by-exception policy? | Configure the operating system to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. | The Fapolicy module must be configured to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs and to prevent unauthorized software from running. | medium | |||
| CCI-001774 | SRG-OS-000370-GPOS-00155 | TBD - Assigned by DISA after STIG release | The operating system must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. | CCE-86960-2: Disable the uvcvideo module | Utilizing a whitelist provides a configuration management method for allowing the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities. The organization must identify authorized software programs and permit execution of authorized software. The process used to identify software programs that are authorized to execute on organizational information systems is commonly referred to as whitelisting. Verification of white-listed software occurs prior to execution or at system startup. This requirement applies to operating system programs, functions, and services designed to manage system processes and configurations (e.g., group policies). | If the device contains a camera it should be covered or disabled when not in use. | Applicable - Configurable | Verify the operating system employs a deny-all, permit-by-exception policy to allow the execution of authorized software programs. If it does not, this is a finding. | If the device or Red Hat Enterprise Linux 8 does not have a camera installed, this requirement is not applicable. This requirement is not applicable to mobile devices (smartphones and tablets), where the use of the camera is a local AO decision. This requirement is not applicable to dedicated VTC suites located in approved VTC locations that are centrally managed. For an external camera, if there is not a method for the operator to manually disconnect the camera at the end of collaborative computing sessions, this is a finding. For a built-in camera, the camera must be protected by a camera cover (e.g., laptop camera cover slide) when not in use. If the built-in camera is not protected with a camera cover, or is not physically disabled, this is a finding. If the camera is not disconnected, covered, or physically disabled, determine if it is being disabled via software with the following commands: Verify the operating system disables the ability to load the uvcvideo kernel module. $ sudo grep -r uvcvideo /etc/modprobe.d/* | grep "/bin/true" install uvcvideo /bin/true Is it the case that the command does not return any output, or the line is commented out, and the collaborative computing device has not been authorized for use? | Configure the operating system to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. | If the device contains a camera it should be covered or disabled when not in use. | medium | |||
| CCI-001774 | SRG-OS-000370-GPOS-00155 | TBD - Assigned by DISA after STIG release | The operating system must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. | CCE-82191-8: Install fapolicyd Package | Utilizing a whitelist provides a configuration management method for allowing the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities. The organization must identify authorized software programs and permit execution of authorized software. The process used to identify software programs that are authorized to execute on organizational information systems is commonly referred to as whitelisting. Verification of white-listed software occurs prior to execution or at system startup. This requirement applies to operating system programs, functions, and services designed to manage system processes and configurations (e.g., group policies). | The fapolicyd package can be installed with the following command:
$ sudo yum install fapolicyd |
Applicable - Configurable | Verify the operating system employs a deny-all, permit-by-exception policy to allow the execution of authorized software programs. If it does not, this is a finding. | Run the following command to determine if the fapolicyd package is installed: $ rpm -q fapolicydIs it the case that the fapolicyd package is not installed? |
Configure the operating system to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. | The fapolicyd package can be installed with the following command:
$ sudo yum install fapolicyd |
medium | |||
| CCI-001774 | SRG-OS-000370-GPOS-00155 | TBD - Assigned by DISA after STIG release | The operating system must employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. | CCE-82249-4: Enable the File Access Policy Service | Utilizing a whitelist provides a configuration management method for allowing the execution of only authorized software. Using only authorized software decreases risk by limiting the number of potential vulnerabilities. The organization must identify authorized software programs and permit execution of authorized software. The process used to identify software programs that are authorized to execute on organizational information systems is commonly referred to as whitelisting. Verification of white-listed software occurs prior to execution or at system startup. This requirement applies to operating system programs, functions, and services designed to manage system processes and configurations (e.g., group policies). | The File Access Policy service should be enabled.
The fapolicyd service can be enabled with the following command:
$ sudo systemctl enable fapolicyd.service |
Applicable - Configurable | Verify the operating system employs a deny-all, permit-by-exception policy to allow the execution of authorized software programs. If it does not, this is a finding. |
Run the following command to determine the current status of the
fapolicyd service:
$ sudo systemctl is-active fapolicydIf the service is running, it should return the following: activeIs it the case that the service is not enabled? |
Configure the operating system to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs. | The File Access Policy service should be enabled.
The fapolicyd service can be enabled with the following command:
$ sudo systemctl enable fapolicyd.service |
medium | |||
| CCI-004046 | SRG-OS-000375-GPOS-00160 | TBD - Assigned by DISA after STIG release | The operating system must implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. | CCE-84029-8: Install Smart Card Packages For Multifactor Authentication | Using an authentication device, such as a common access card (CAC) or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device. Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification (PIV) card and the DOD CAC. A privileged account is defined as an information system account with authorizations of a privileged user. Remote access is access to DOD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management). | Configure the operating system to implement multifactor authentication by
installing the required package with the following command:
The openssl-pkcs11 package can be installed with the following command:
$ sudo yum install openssl-pkcs11 |
Applicable - Configurable | Verify the operating system implements multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. If it does not, this is a finding. | Check that Red Hat Enterprise Linux 8 has the packages for smart card support installed.
Run the following command to determine if the openssl-pkcs11 package is installed:
$ rpm -q openssl-pkcs11Is it the case that smartcard software is not installed? |
Configure the operating system to implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. | Configure the operating system to implement multifactor authentication by
installing the required package with the following command:
The openssl-pkcs11 package can be installed with the following command:
$ sudo yum install openssl-pkcs11 |
medium | |||
| CCI-004046 | SRG-OS-000375-GPOS-00160 | TBD - Assigned by DISA after STIG release | The operating system must implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. | CCE-80846-9: Install the opensc Package For Multifactor Authentication | Using an authentication device, such as a common access card (CAC) or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device. Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification (PIV) card and the DOD CAC. A privileged account is defined as an information system account with authorizations of a privileged user. Remote access is access to DOD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management). |
The opensc package can be installed with the following command:
$ sudo yum install opensc |
Applicable - Configurable | Verify the operating system implements multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. If it does not, this is a finding. | Run the following command to determine if the opensc package is installed: $ rpm -q openscIs it the case that the package is not installed? |
Configure the operating system to implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. |
The opensc package can be installed with the following command:
$ sudo yum install opensc |
medium | |||
| CCI-004046 | SRG-OS-000375-GPOS-00160 | TBD - Assigned by DISA after STIG release | The operating system must implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. | CCE-86120-3: Certificate status checking in SSSD | Using an authentication device, such as a common access card (CAC) or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device. Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification (PIV) card and the DOD CAC. A privileged account is defined as an information system account with authorizations of a privileged user. Remote access is access to DOD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management). | Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards. Configuring certificate_verification to ocsp_dgst= ensures that certificates for multifactor solutions are checked via Online Certificate Status Protocol (OCSP). | Applicable - Configurable | Verify the operating system implements multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. If it does not, this is a finding. | Check to see if Online Certificate Status Protocol (OCSP)
is enabled and using the proper digest value on the system with the following command:
$ sudo grep certificate_verification /etc/sssd/sssd.conf /etc/sssd/conf.d/*.conf | grep -v "^#"If configured properly, output should look like
certificate_verification = ocsp_dgst=
Is it the case that certificate_verification in sssd is not configured? |
Configure the operating system to implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. | Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards. Configuring certificate_verification to ocsp_dgst= ensures that certificates for multifactor solutions are checked via Online Certificate Status Protocol (OCSP). | medium | |||
| CCI-004046 | SRG-OS-000375-GPOS-00160 | TBD - Assigned by DISA after STIG release | The operating system must implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. | CCE-80909-5: Enable Smartcards in SSSD | Using an authentication device, such as a common access card (CAC) or token that is separate from the information system, ensures that even if the information system is compromised, that compromise will not affect credentials stored on the authentication device. Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards such as the U.S. Government Personal Identity Verification (PIV) card and the DOD CAC. A privileged account is defined as an information system account with authorizations of a privileged user. Remote access is access to DOD nonpublic information systems by an authorized user (or an information system) communicating through an external, nonorganization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. This requirement only applies to components where this is specific to the function of the device or has the concept of an organizational user (e.g., VPN, proxy capability). This does not apply to authentication for the purpose of configuring the device itself (management). | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
Applicable - Configurable | Verify the operating system implements multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. If it does not, this is a finding. | To verify that smart cards are enabled in SSSD, run the following command:
$ sudo grep pam_cert_auth /etc/sssd/sssd.confIf configured properly, output should be pam_cert_auth = TrueTo verify that smart cards are enabled in PAM files, run the following command: $ sudo grep -e "auth.*pam_sss\.so.*\(allow_missing_name\|try_cert_auth\)" /etc/pam.d/smartcard-auth /etc/pam.d/system-authIf configured properly, output should be /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authIs it the case that smart cards are not enabled in SSSD? |
Configure the operating system to implement multifactor authentication for remote access to privileged accounts in such a way that one of the factors is provided by a device separate from the system gaining access. | SSSD should be configured to authenticate access to the system using smart cards.
To enable smart cards in SSSD, set pam_cert_auth to True under the
[pam] section in /etc/sssd/sssd.conf. For example:
[pam] pam_cert_auth = TrueAdd or update "pam_sss.so" line in auth section of "/etc/pam.d/system-auth" file to include "try_cert_auth" or "require_cert_auth" option, like in the following example: /etc/pam.d/system-auth:auth [success=done authinfo_unavail=ignore ignore=ignore default=die] pam_sss.so try_cert_authAlso add or update "pam_sss.so" line in auth section of "/etc/pam.d/smartcard-auth" file to include the "allow_missing_name" option, like in the following example: /etc/pam.d/smartcard-auth:auth sufficient pam_sss.so allow_missing_name |
medium | |||
| CCI-001953 | SRG-OS-000376-GPOS-00161 | TBD - Assigned by DISA after STIG release | The operating system must accept Personal Identity Verification (PIV) credentials. | CCE-80846-9: Install the opensc Package For Multifactor Authentication | The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access. DoD has mandated the use of the CAC to support identity management and personal authentication for systems covered under Homeland Security Presidential Directive (HSPD) 12, as well as making the CAC a primary component of layered protection for national security systems. |
The opensc package can be installed with the following command:
$ sudo yum install opensc |
Applicable - Configurable | Verify the operating system accepts Personal Identity Verification (PIV) credentials. If it does not, this is a finding. | Run the following command to determine if the opensc package is installed: $ rpm -q openscIs it the case that the package is not installed? |
Configure the operating system to accept Personal Identity Verification (PIV) credentials. |
The opensc package can be installed with the following command:
$ sudo yum install opensc |
medium | |||
| CCI-001954 | SRG-OS-000377-GPOS-00162 | TBD - Assigned by DISA after STIG release | The operating system must electronically verify Personal Identity Verification (PIV) credentials. | CCE-84029-8: Install Smart Card Packages For Multifactor Authentication | The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access. DoD has mandated the use of the CAC to support identity management and personal authentication for systems covered under Homeland Security Presidential Directive (HSPD) 12, as well as making the CAC a primary component of layered protection for national security systems. | Configure the operating system to implement multifactor authentication by
installing the required package with the following command:
The openssl-pkcs11 package can be installed with the following command:
$ sudo yum install openssl-pkcs11 |
Applicable - Configurable | Verify the operating system electronically verifies Personal Identity Verification (PIV) credentials. If it does not, this is a finding. | Check that Red Hat Enterprise Linux 8 has the packages for smart card support installed.
Run the following command to determine if the openssl-pkcs11 package is installed:
$ rpm -q openssl-pkcs11Is it the case that smartcard software is not installed? |
Configure the operating system to electronically verify Personal Identity Verification (PIV) credentials. | Configure the operating system to implement multifactor authentication by
installing the required package with the following command:
The openssl-pkcs11 package can be installed with the following command:
$ sudo yum install openssl-pkcs11 |
medium | |||
| CCI-001954 | SRG-OS-000377-GPOS-00162 | TBD - Assigned by DISA after STIG release | The operating system must electronically verify Personal Identity Verification (PIV) credentials. | CCE-86120-3: Certificate status checking in SSSD | The use of PIV credentials facilitates standardization and reduces the risk of unauthorized access. DoD has mandated the use of the CAC to support identity management and personal authentication for systems covered under Homeland Security Presidential Directive (HSPD) 12, as well as making the CAC a primary component of layered protection for national security systems. | Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards. Configuring certificate_verification to ocsp_dgst= ensures that certificates for multifactor solutions are checked via Online Certificate Status Protocol (OCSP). | Applicable - Configurable | Verify the operating system electronically verifies Personal Identity Verification (PIV) credentials. If it does not, this is a finding. | Check to see if Online Certificate Status Protocol (OCSP)
is enabled and using the proper digest value on the system with the following command:
$ sudo grep certificate_verification /etc/sssd/sssd.conf /etc/sssd/conf.d/*.conf | grep -v "^#"If configured properly, output should look like
certificate_verification = ocsp_dgst=
Is it the case that certificate_verification in sssd is not configured? |
Configure the operating system to electronically verify Personal Identity Verification (PIV) credentials. | Multifactor solutions that require devices separate from information systems gaining access include, for example, hardware tokens providing time-based or challenge-response authenticators and smart cards. Configuring certificate_verification to ocsp_dgst= ensures that certificates for multifactor solutions are checked via Online Certificate Status Protocol (OCSP). | medium | |||
| CCI-001958 | SRG-OS-000378-GPOS-00163 | TBD - Assigned by DISA after STIG release | The operating system must authenticate peripherals before establishing a connection. | CCE-80835-2: Disable Modprobe Loading of USB Storage Driver | Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. | To prevent USB storage devices from being used, configure the kernel module loading system
to prevent automatic loading of the USB storage driver.
To configure the system to prevent the usb-storage
kernel module from being loaded, add the following line to the file /etc/modprobe.d/usb-storage.conf:
install usb-storage /bin/falseTo configure the system to prevent the usb-storage from being used,
add the following line to file /etc/modprobe.d/usb-storage.conf:
blacklist usb-storageThis will prevent the modprobe program from loading the usb-storage module, but will not prevent an administrator (or another program) from using the insmod program to load the module manually. |
Applicable - Configurable | Verify the operating system authenticates peripherals before establishing a connection. If it does not, this is a finding. |
If the system is configured to prevent the loading of the usb-storage kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the usb-storage kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r usb-storage /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system to authenticate peripherals before establishing a connection. | To prevent USB storage devices from being used, configure the kernel module loading system
to prevent automatic loading of the USB storage driver.
To configure the system to prevent the usb-storage
kernel module from being loaded, add the following line to the file /etc/modprobe.d/usb-storage.conf:
install usb-storage /bin/falseTo configure the system to prevent the usb-storage from being used,
add the following line to file /etc/modprobe.d/usb-storage.conf:
blacklist usb-storageThis will prevent the modprobe program from loading the usb-storage module, but will not prevent an administrator (or another program) from using the insmod program to load the module manually. |
medium | |||
| CCI-001958 | SRG-OS-000378-GPOS-00163 | TBD - Assigned by DISA after STIG release | The operating system must authenticate peripherals before establishing a connection. | CCE-82959-8: Install usbguard Package | Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. |
The usbguard package can be installed with the following command:
$ sudo yum install usbguard |
Applicable - Configurable | Verify the operating system authenticates peripherals before establishing a connection. If it does not, this is a finding. | Run the following command to determine if the usbguard package is installed: $ rpm -q usbguardIs it the case that the package is not installed? |
Configure the operating system to authenticate peripherals before establishing a connection. |
The usbguard package can be installed with the following command:
$ sudo yum install usbguard |
medium | |||
| CCI-001958 | SRG-OS-000378-GPOS-00163 | TBD - Assigned by DISA after STIG release | The operating system must authenticate peripherals before establishing a connection. | CCE-80873-3: Disable the Automounter | Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. | The autofs daemon mounts and unmounts filesystems, such as user
home directories shared via NFS, on demand. In addition, autofs can be used to handle
removable media, and the default configuration provides the cdrom device as /misc/cd.
However, this method of providing access to removable media is not common, so autofs
can almost always be disabled if NFS is not in use. Even if NFS is required, it may be
possible to configure filesystem mounts statically by editing /etc/fstab
rather than relying on the automounter.
The autofs service can be disabled with the following command:
$ sudo systemctl mask --now autofs.service |
Applicable - Configurable | Verify the operating system authenticates peripherals before establishing a connection. If it does not, this is a finding. | To check that the autofs service is disabled in system boot configuration,
run the following command:
$ sudo systemctl is-enabled
Output should indicate the autofs service has either not been installed,
or has been disabled at all runlevels, as shown in the example below:
$ sudo systemctl is-enabledRun the following command to verify autofs is not active (i.e. not running) through current runtime configuration:
$ sudo systemctl is-active autofsIf the service is not running the command will return the following output: inactiveThe service will also be masked, to check that the autofs is masked, run the following command:
$ sudo systemctl show
If the service is masked the command will return the following outputs:
LoadState=masked UnitFileState=maskedIs it the case that the "autofs" is loaded and not masked? |
Configure the operating system to authenticate peripherals before establishing a connection. | The autofs daemon mounts and unmounts filesystems, such as user
home directories shared via NFS, on demand. In addition, autofs can be used to handle
removable media, and the default configuration provides the cdrom device as /misc/cd.
However, this method of providing access to removable media is not common, so autofs
can almost always be disabled if NFS is not in use. Even if NFS is required, it may be
possible to configure filesystem mounts statically by editing /etc/fstab
rather than relying on the automounter.
The autofs service can be disabled with the following command:
$ sudo systemctl mask --now autofs.service |
medium | |||
| CCI-001958 | SRG-OS-000378-GPOS-00163 | TBD - Assigned by DISA after STIG release | The operating system must authenticate peripherals before establishing a connection. | CCE-82853-3: Enable the USBGuard Service | Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. | The USBGuard service should be enabled.
The usbguard service can be enabled with the following command:
$ sudo systemctl enable usbguard.service |
Applicable - Configurable | Verify the operating system authenticates peripherals before establishing a connection. If it does not, this is a finding. |
Run the following command to determine the current status of the
usbguard service:
$ sudo systemctl is-active usbguardIf the service is running, it should return the following: activeIs it the case that the service is not enabled? |
Configure the operating system to authenticate peripherals before establishing a connection. | The USBGuard service should be enabled.
The usbguard service can be enabled with the following command:
$ sudo systemctl enable usbguard.service |
medium | |||
| CCI-001958 | SRG-OS-000378-GPOS-00163 | TBD - Assigned by DISA after STIG release | The operating system must authenticate peripherals before establishing a connection. | CCE-83774-0: Generate USBGuard Policy | Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Peripherals include, but are not limited to, such devices as flash drives, external storage, and printers. | By default USBGuard when enabled prevents access to all USB devices and this lead to inaccessible system if they use USB mouse/keyboard. To prevent this scenario, the initial policy configuration must be generated based on current connected USB devices. | Applicable - Configurable | Verify the operating system authenticates peripherals before establishing a connection. If it does not, this is a finding. | Verify the USBGuard has a policy configured with the following command: $ usbguard list-rules allow id 1d6b:0001 serial If the command does not return results or an error is returned, ask the SA to indicate how unauthorized peripherals are being blocked. Is it the case that there is no evidence that unauthorized peripherals are being blocked before establishing a connection? | Configure the operating system to authenticate peripherals before establishing a connection. | By default USBGuard when enabled prevents access to all USB devices and this lead to inaccessible system if they use USB mouse/keyboard. To prevent this scenario, the initial policy configuration must be generated based on current connected USB devices. | medium | |||
| V-56807 | SRG-OS-000379-GPOS-00164 | TBD - Assigned by DISA after STIG release | The operating system must authenticate all endpoint devices before establishing a local, remote, and/or network connection using bidirectional authentication that is cryptographically based. | Without authenticating devices, unidentified or unknown devices may be introduced, thereby facilitating malicious activity. Bidirectional authentication provides stronger safeguards to validate the identity of other devices for connections that are of greater risk. Bidirectional authentication solutions include, but are not limited to, IEEE 802.1x and Extensible Authentication Protocol [EAP], RADIUS server with EAP-Transport Layer Security [TLS] authentication, Kerberos, and SSL mutual authentication. A local connection is any connection with a device communicating without the use of a network. A network connection is any connection with a device that communicates through a network (e.g., local area network, wide area network, or the Internet). A remote connection is any connection with a device communicating through an external network (e.g., the Internet). Because of the challenges of applying this requirement on a large scale, organizations are encouraged to only apply this requirement to those limited number (and type) of devices that truly need to support this capability. | |||||||||||
| CCI-002007 | SRG-OS-000383-GPOS-00166 | TBD - Assigned by DISA after STIG release | The operating system must prohibit the use of cached authenticators after one day. | CCE-82460-7: Configure SSSD to Expire Offline Credentials | If cached authentication information is out-of-date, the validity of the authentication information may be questionable. | SSSD should be configured to expire offline credentials after 1 day.
Check if SSSD allows cached authentications with the following command:
$ sudo grep cache_credentials /etc/sssd/sssd.conf cache_credentials = trueIf "cache_credentials" is set to "false" or is missing no further checks are required. To configure SSSD to expire offline credentials, set offline_credentials_expiration to 1 under the [pam] section in /etc/sssd/sssd.conf. For example: [pam] offline_credentials_expiration = 1 |
Applicable - Configurable | Verify the operating system prohibits the use of cached authenticators after one day. If it does not, this is a finding. |
Check if SSSD allows cached authentications with the following command:
$ sudo grep cache_credentials /etc/sssd/sssd.conf cache_credentials = trueIf "cache_credentials" is set to "false" or is missing no further checks are required. To verify that SSSD expires offline credentials, run the following command: $ sudo grep offline_credentials_expiration /etc/sssd/sssd.conf /etc/sssd/conf.d/*.confIf configured properly, output should be offline_credentials_expiration = 1Is it the case that it does not exist or is not configured properly? |
Configure the operating system to prohibit the use of cached authenticators after one day. | SSSD should be configured to expire offline credentials after 1 day.
Check if SSSD allows cached authentications with the following command:
$ sudo grep cache_credentials /etc/sssd/sssd.conf cache_credentials = trueIf "cache_credentials" is set to "false" or is missing no further checks are required. To configure SSSD to expire offline credentials, set offline_credentials_expiration to 1 under the [pam] section in /etc/sssd/sssd.conf. For example: [pam] offline_credentials_expiration = 1 |
medium | |||
| CCI-004068 | SRG-OS-000384-GPOS-00167 | TBD - Assigned by DISA after STIG release | The operating system, for PKI-based authentication, must implement a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network. | CCE-86312-6: SSSD Has a Correct Trust Anchor | Without configuring a local cache of revocation data, there is the potential to allow access to users who are no longer authorized (users with revoked certificates). | SSSD must have acceptable trust anchor present. | Applicable - Configurable | Verify the operating system, for PKI-based authentication, implements a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 for PKI-based authentication has valid certificates by constructing a certification path (which includes status information) to an accepted trust anchor. Check that the system has a valid DoD root CA installed with the following command: $ sudo openssl x509 -text -in /etc/sssd/pki/sssd_auth_ca_db.pem Certificate: Data: Version: 3 (0x2) Serial Number: 1 (0x1) Signature Algorithm: sha256WithRSAEncryption Issuer: C = US, O = U.S. Government, OU = DoD, OU = PKI, CN = DoD Root CA 3 Validity Not Before: Mar 20 18:46:41 2012 GMT Not After : Dec 30 18:46:41 2029 GMT Subject: C = US, O = U.S. Government, OU = DoD, OU = PKI, CN = DoD Root CA 3 Subject Public Key Info: Public Key Algorithm: rsaEncryption Is it the case that root CA file is not a DoD-issued certificate with a valid date and installed in the /etc/sssd/pki/sssd_auth_ca_db.pem location? | Configure the operating system, for PKI-based authentication, to implement a local cache of revocation data to support path discovery and validation in case of the inability to access revocation information via the network. | SSSD must have acceptable trust anchor present. | medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-89446-9: Record Any Attempts to Run chacl | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chacl" command with the following command: $ sudo auditctl -l | grep chacl -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80698-4: Record Any Attempts to Run chcon | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80700-8: Record Any Attempts to Run semanage | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "semanage" command with the following command: $ sudo auditctl -l | grep semanage -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-88437-9: Record Any Attempts to Run setfacl | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfacl" command with the following command: $ sudo auditctl -l | grep setfacl -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-82280-9: Record Any Attempts to Run setfiles | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfiles" command with the following command: $ sudo auditctl -l | grep setfiles -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80701-6: Record Any Attempts to Run setsebool | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setsebool" command with the following command: $ sudo auditctl -l | grep setsebool -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -k privileged Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80711-5: Ensure auditd Collects Information on Kernel Module Unloading - delete_module | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
delete_module system call, run the following command:
$ sudo grep "delete_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80712-3: Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
finit_module system call, run the following command:
$ sudo grep "finit_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80713-1: Ensure auditd Collects Information on Kernel Module Loading - init_module | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
init_module system call, run the following command:
$ sudo grep "init_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80718-0: Record Attempts to Alter Logon and Logout Events - faillock | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w -p wa -k logins |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -w -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w -p wa -k logins |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80719-8: Record Attempts to Alter Logon and Logout Events - lastlog | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/var/log/lastlog" with the following command: $ sudo auditctl -l | grep /var/log/lastlog -w /var/log/lastlog -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80722-2: Ensure auditd Collects Information on Exporting to Media (successful) | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
mount system call, run the following command:
$ sudo grep "mount" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80725-5: Ensure auditd Collects Information on the Use of Privileged Commands - chage | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chage" command with the following command: $ sudo auditctl -l | grep chage -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chage Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80726-3: Ensure auditd Collects Information on the Use of Privileged Commands - chsh | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chsh" command with the following command: $ sudo auditctl -l | grep chsh -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chsh Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80727-1: Ensure auditd Collects Information on the Use of Privileged Commands - crontab | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "crontab" command with the following command: $ sudo auditctl -l | grep crontab -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -k privileged-crontab Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80728-9: Ensure auditd Collects Information on the Use of Privileged Commands - gpasswd | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "gpasswd" command with the following command: $ sudo auditctl -l | grep gpasswd -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-gpasswd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-89455-0: Ensure auditd Collects Information on the Use of Privileged Commands - kmod | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "kmod" command with the following command: $ sudo auditctl -l | grep kmod -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-kmod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80989-7: Ensure auditd Collects Information on the Use of Privileged Commands - mount | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "mount" command with the following command: $ sudo auditctl -l | grep mount -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-mount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80729-7: Ensure auditd Collects Information on the Use of Privileged Commands - newgrp | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "newgrp" command with the following command: $ sudo auditctl -l | grep newgrp -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -k privileged-newgrp Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80730-5: Ensure auditd Collects Information on the Use of Privileged Commands - pam_timestamp_check | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "pam_timestamp_check" command with the following command: $ sudo auditctl -l | grep pam_timestamp_check -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -k privileged-pam_timestamp_check Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80731-3: Ensure auditd Collects Information on the Use of Privileged Commands - passwd | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "passwd" command with the following command: $ sudo auditctl -l | grep passwd -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-passwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80732-1: Ensure auditd Collects Information on the Use of Privileged Commands - postdrop | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postdrop" command with the following command: $ sudo auditctl -l | grep postdrop -a always,exit -F path=/usr/bin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postdrop Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80733-9: Ensure auditd Collects Information on the Use of Privileged Commands - postqueue | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postqueue" command with the following command: $ sudo auditctl -l | grep postqueue -a always,exit -F path=/usr/bin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postqueue Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-85944-7: Record Any Attempts to Run ssh-agent | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-agent" command with the following command: $ sudo auditctl -l | grep ssh-agent -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80735-4: Ensure auditd Collects Information on the Use of Privileged Commands - ssh-keysign | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-keysign" command with the following command: $ sudo auditctl -l | grep ssh-keysign -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-keysign Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80736-2: Ensure auditd Collects Information on the Use of Privileged Commands - su | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "su" command with the following command: $ sudo auditctl -l | grep su -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -k privileged-su Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80737-0: Ensure auditd Collects Information on the Use of Privileged Commands - sudo | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "sudo" command with the following command: $ sudo auditctl -l | grep sudo -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80739-6: Ensure auditd Collects Information on the Use of Privileged Commands - umount | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "umount" command with the following command: $ sudo auditctl -l | grep umount -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-umount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80740-4: Ensure auditd Collects Information on the Use of Privileged Commands - unix_chkpwd | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_chkpwd" command with the following command: $ sudo auditctl -l | grep unix_chkpwd -a always,exit -F path=/usr/bin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_chkpwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-89480-8: Ensure auditd Collects Information on the Use of Privileged Commands - unix_update | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_update" command with the following command: $ sudo auditctl -l | grep unix_update -a always,exit -F path=/usr/bin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80741-2: Ensure auditd Collects Information on the Use of Privileged Commands - userhelper | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "userhelper" command with the following command: $ sudo auditctl -l | grep userhelper -a always,exit -F path=/usr/bin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -k privileged-userhelper Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-86027-0: Ensure auditd Collects Information on the Use of Privileged Commands - usermod | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "usermod" command with the following command: $ sudo auditctl -l | grep usermod -a always,exit -F path=/usr/bin/usermod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-usermod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80825-3: Enable Auditing for Processes Which Start Prior to the Audit Daemon | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit=1'The command should not return any output. Is it the case that auditing is not enabled at boot time? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
low | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80943-4: Extend Audit Backlog Limit for the Audit Daemon | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit_backlog_limit=8192,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit_backlog_limit=8192.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit_backlog_limit=8192.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit_backlog_limit=8192'The command should not return any output. Is it the case that audit backlog limit is not configured? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
low | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-81043-2: Ensure the audit Subsystem is Installed | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | The audit package should be installed. | Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | The audit package should be installed. | medium | |||
| CCI-002884 | SRG-OS-000392-GPOS-00172 | TBD - Assigned by DISA after STIG release | The operating system must audit all activities performed during nonlocal maintenance and diagnostic sessions. | CCE-80872-5: Enable auditd Service | If events associated with nonlocal administrative access or diagnostic sessions are not logged, a major tool for assessing and investigating attacks would not be available. This requirement addresses auditing-related issues associated with maintenance tools used specifically for diagnostic and repair actions on organizational information systems. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system, for example, the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system audits all activities performed during nonlocal maintenance and diagnostic sessions. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to audit all activities performed during nonlocal maintenance and diagnostic sessions. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-002890 | SRG-OS-000393-GPOS-00173 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | CCE-80935-0: Configure System Cryptography Policy | Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms, such as a hash function or digital signature, to protect integrity. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. The operating system can meet this requirement through leveraging a cryptographic module. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system (e.g., the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch). | To configure the system cryptography policy to use ciphers only from the
policy, run the following command:
$ sudo update-crypto-policies --setThe rule checks if settings for selected crypto policy are configured as expected. Configuration files in the /etc/crypto-policies/back-ends are either symlinks to correct files provided by Crypto-policies package or they are regular files in case crypto policy customizations are applied. Crypto policies may be customized by crypto policy modules, in which case it is delimited from the base policy using a colon. |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. If it does not, this is a finding. | To verify that cryptography policy has been configured correctly, run the
following command:
$ update-crypto-policies --showThe output should return . Run the command to check if the policy is correctly applied: $ update-crypto-policies --is-appliedThe output should be The configured policy is applied. Moreover, check if settings for selected crypto policy are as expected. List all libraries for which it holds that their crypto policies do not have symbolic link in /etc/crypto-policies/back-ends. $ ls -l /etc/crypto-policies/back-ends/ | grep '^[^l]' | tail -n +2 | awk -F' ' '{print $NF}' | awk -F'.' '{print $1}' | sort
Subsequently, check if matching libraries have drop in files in the /etc/crypto-policies/local.ddirectory. $ ls /etc/crypto-policies/local.d/ | awk -F'-' '{print $1}' | uniq | sort
Outputs of two previous commands should match. Is it the case that cryptographic policy is not configured or is configured incorrectly? |
Configure the operating system to implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | To configure the system cryptography policy to use ciphers only from the
policy, run the following command:
$ sudo update-crypto-policies --setThe rule checks if settings for selected crypto policy are configured as expected. Configuration files in the /etc/crypto-policies/back-ends are either symlinks to correct files provided by Crypto-policies package or they are regular files in case crypto policy customizations are applied. Crypto policies may be customized by crypto policy modules, in which case it is delimited from the base policy using a colon. |
high | |||
| CCI-002890 | SRG-OS-000393-GPOS-00173 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | CCE-84255-9: Configure OpenSSL library to use TLS Encryption | Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms, such as a hash function or digital signature, to protect integrity. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. The operating system can meet this requirement through leveraging a cryptographic module. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system (e.g., the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch). | Crypto Policies are means of enforcing certain cryptographic settings for
selected applications including OpenSSL. OpenSSL is by default configured to
modify its configuration based on currently configured Crypto Policy.
Editing the Crypto Policy back-end is not recommended.
Check the crypto-policies(7) man page and choose a policy that configures TLS
protocol to version 1.2 or higher, for example DEFAULT, FUTURE or FIPS policy.
Or create and apply a custom policy that restricts minimum TLS version to 1.2.
For example for versions prior to crypto-policies-20210617-1.gitc776d3e.el8.noarch
this is expected:
$ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config MinProtocol = TLSv1.2Or for version crypto-policies-20210617-1.gitc776d3e.el8.noarch and newer this is expected: $ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config TLS.MinProtocol = TLSv1.2 DTLS.MinProtocol = DTLSv1.2 |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. If it does not, this is a finding. | To verify if the OpenSSL uses defined TLS Crypto Policy, run:
$ grep -P '^(TLS\.)?MinProtocol' /etc/crypto-policies/back-ends/opensslcnf.configand verify that the value is TLSv1.2Is it the case that cryptographic policy for openssl is not configured or is configured incorrectly? |
Configure the operating system to implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | Crypto Policies are means of enforcing certain cryptographic settings for
selected applications including OpenSSL. OpenSSL is by default configured to
modify its configuration based on currently configured Crypto Policy.
Editing the Crypto Policy back-end is not recommended.
Check the crypto-policies(7) man page and choose a policy that configures TLS
protocol to version 1.2 or higher, for example DEFAULT, FUTURE or FIPS policy.
Or create and apply a custom policy that restricts minimum TLS version to 1.2.
For example for versions prior to crypto-policies-20210617-1.gitc776d3e.el8.noarch
this is expected:
$ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config MinProtocol = TLSv1.2Or for version crypto-policies-20210617-1.gitc776d3e.el8.noarch and newer this is expected: $ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config TLS.MinProtocol = TLSv1.2 DTLS.MinProtocol = DTLSv1.2 |
medium | |||
| CCI-002890 | SRG-OS-000393-GPOS-00173 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | CCE-85902-5: Configure SSH Client to Use FIPS 140-2 Validated Ciphers: openssh.config | Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms, such as a hash function or digital signature, to protect integrity. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. The operating system can meet this requirement through leveraging a cryptographic module. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system (e.g., the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch). | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. If it does not, this is a finding. | To verify if the OpenSSH client uses defined Cipher suite in the Crypto Policy, run:
$ grep -i ciphers /etc/crypto-policies/back-ends/openssh.configand verify that the line matches: CiphersIs it the case that Crypto Policy for OpenSSH client is not configured correctly? |
Configure the operating system to implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
high | |||
| CCI-002890 | SRG-OS-000393-GPOS-00173 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | CCE-84027-2: Set kernel parameter 'crypto.fips_enabled' to 1 | Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms, such as a hash function or digital signature, to protect integrity. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. The operating system can meet this requirement through leveraging a cryptographic module. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system (e.g., the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch). | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. If it does not, this is a finding. | To verify that kernel parameter 'crypto.fips_enabled' is set properly, run the following command:
sysctl crypto.fips_enabledThe output should contain the following: crypto.fips_enabled = 1Is it the case that crypto.fips_enabled is not 1? |
Configure the operating system to implement cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
high | |||
| CCI-003123 | SRG-OS-000394-GPOS-00174 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | CCE-80935-0: Configure System Cryptography Policy | Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms such as encryption to protect confidentiality. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system (e.g., the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch). The operating system can meet this requirement through leveraging a cryptographic module. | To configure the system cryptography policy to use ciphers only from the
policy, run the following command:
$ sudo update-crypto-policies --setThe rule checks if settings for selected crypto policy are configured as expected. Configuration files in the /etc/crypto-policies/back-ends are either symlinks to correct files provided by Crypto-policies package or they are regular files in case crypto policy customizations are applied. Crypto policies may be customized by crypto policy modules, in which case it is delimited from the base policy using a colon. |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. If it does not, this is a finding. | To verify that cryptography policy has been configured correctly, run the
following command:
$ update-crypto-policies --showThe output should return . Run the command to check if the policy is correctly applied: $ update-crypto-policies --is-appliedThe output should be The configured policy is applied. Moreover, check if settings for selected crypto policy are as expected. List all libraries for which it holds that their crypto policies do not have symbolic link in /etc/crypto-policies/back-ends. $ ls -l /etc/crypto-policies/back-ends/ | grep '^[^l]' | tail -n +2 | awk -F' ' '{print $NF}' | awk -F'.' '{print $1}' | sort
Subsequently, check if matching libraries have drop in files in the /etc/crypto-policies/local.ddirectory. $ ls /etc/crypto-policies/local.d/ | awk -F'-' '{print $1}' | uniq | sort
Outputs of two previous commands should match. Is it the case that cryptographic policy is not configured or is configured incorrectly? |
Configure the operating system to implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | To configure the system cryptography policy to use ciphers only from the
policy, run the following command:
$ sudo update-crypto-policies --setThe rule checks if settings for selected crypto policy are configured as expected. Configuration files in the /etc/crypto-policies/back-ends are either symlinks to correct files provided by Crypto-policies package or they are regular files in case crypto policy customizations are applied. Crypto policies may be customized by crypto policy modules, in which case it is delimited from the base policy using a colon. |
high | |||
| CCI-003123 | SRG-OS-000394-GPOS-00174 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | CCE-84255-9: Configure OpenSSL library to use TLS Encryption | Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms such as encryption to protect confidentiality. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system (e.g., the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch). The operating system can meet this requirement through leveraging a cryptographic module. | Crypto Policies are means of enforcing certain cryptographic settings for
selected applications including OpenSSL. OpenSSL is by default configured to
modify its configuration based on currently configured Crypto Policy.
Editing the Crypto Policy back-end is not recommended.
Check the crypto-policies(7) man page and choose a policy that configures TLS
protocol to version 1.2 or higher, for example DEFAULT, FUTURE or FIPS policy.
Or create and apply a custom policy that restricts minimum TLS version to 1.2.
For example for versions prior to crypto-policies-20210617-1.gitc776d3e.el8.noarch
this is expected:
$ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config MinProtocol = TLSv1.2Or for version crypto-policies-20210617-1.gitc776d3e.el8.noarch and newer this is expected: $ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config TLS.MinProtocol = TLSv1.2 DTLS.MinProtocol = DTLSv1.2 |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. If it does not, this is a finding. | To verify if the OpenSSL uses defined TLS Crypto Policy, run:
$ grep -P '^(TLS\.)?MinProtocol' /etc/crypto-policies/back-ends/opensslcnf.configand verify that the value is TLSv1.2Is it the case that cryptographic policy for openssl is not configured or is configured incorrectly? |
Configure the operating system to implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | Crypto Policies are means of enforcing certain cryptographic settings for
selected applications including OpenSSL. OpenSSL is by default configured to
modify its configuration based on currently configured Crypto Policy.
Editing the Crypto Policy back-end is not recommended.
Check the crypto-policies(7) man page and choose a policy that configures TLS
protocol to version 1.2 or higher, for example DEFAULT, FUTURE or FIPS policy.
Or create and apply a custom policy that restricts minimum TLS version to 1.2.
For example for versions prior to crypto-policies-20210617-1.gitc776d3e.el8.noarch
this is expected:
$ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config MinProtocol = TLSv1.2Or for version crypto-policies-20210617-1.gitc776d3e.el8.noarch and newer this is expected: $ sudo grep -i MinProtocol /etc/crypto-policies/back-ends/opensslcnf.config TLS.MinProtocol = TLSv1.2 DTLS.MinProtocol = DTLSv1.2 |
medium | |||
| CCI-003123 | SRG-OS-000394-GPOS-00174 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | CCE-85902-5: Configure SSH Client to Use FIPS 140-2 Validated Ciphers: openssh.config | Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms such as encryption to protect confidentiality. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system (e.g., the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch). The operating system can meet this requirement through leveraging a cryptographic module. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. If it does not, this is a finding. | To verify if the OpenSSH client uses defined Cipher suite in the Crypto Policy, run:
$ grep -i ciphers /etc/crypto-policies/back-ends/openssh.configand verify that the line matches: CiphersIs it the case that Crypto Policy for OpenSSH client is not configured correctly? |
Configure the operating system to implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
high | |||
| CCI-003123 | SRG-OS-000394-GPOS-00174 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | CCE-84027-2: Set kernel parameter 'crypto.fips_enabled' to 1 | Privileged access contains control and configuration information and is particularly sensitive, so additional protections are necessary. This is maintained by using cryptographic mechanisms such as encryption to protect confidentiality. Nonlocal maintenance and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the Internet) or an internal network. Local maintenance and diagnostic activities are those activities carried out by individuals physically present at the information system or information system component and not communicating across a network connection. This requirement applies to hardware/software diagnostic test equipment or tools. This requirement does not cover hardware/software components that may support information system maintenance, yet are a part of the system (e.g., the software implementing "ping," "ls," "ipconfig," or the hardware and software implementing the monitoring port of an Ethernet switch). The operating system can meet this requirement through leveraging a cryptographic module. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. If it does not, this is a finding. | To verify that kernel parameter 'crypto.fips_enabled' is set properly, run the following command:
sysctl crypto.fips_enabledThe output should contain the following: crypto.fips_enabled = 1Is it the case that crypto.fips_enabled is not 1? |
Configure the operating system to implement cryptographic mechanisms to protect the confidentiality of nonlocal maintenance and diagnostic communications, when used for nonlocal maintenance sessions. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
high | |||
| CCI-002891 | SRG-OS-000395-GPOS-00175 | TBD - Assigned by DISA after STIG release | The operating system must verify remote disconnection at the termination of nonlocal maintenance and diagnostic sessions, when used for nonlocal maintenance sessions. | CCE-80906-1: Set SSH Client Alive Interval | If the remote connection is not closed and verified as closed, the session may remain open and be exploited by an attacker; this is referred to as a zombie session. Remote connections must be disconnected and verified as disconnected when nonlocal maintenance sessions have been terminated and are no longer available for use. | SSH allows administrators to set a network responsiveness timeout interval.
After this interval has passed, the unresponsive client will be automatically logged out.
To set this timeout interval, edit the following line in /etc/ssh/sshd_config as follows: ClientAliveInterval The timeout interval is given in seconds. For example, have a timeout of 10 minutes, set interval to 600. If a shorter timeout has already been set for the login shell, that value will preempt any SSH setting made in /etc/ssh/sshd_config. Keep in mind that some processes may stop SSH from correctly detecting that the user is idle. |
Applicable - Configurable | Verify the operating system verifies remote disconnection at the termination of nonlocal maintenance and diagnostic sessions, when used for nonlocal maintenance sessions. If it does not, this is a finding. | Run the following command to see what the timeout interval is:
$ sudo grep ClientAliveInterval /etc/ssh/sshd_configIf properly configured, the output should be: ClientAliveIntervalIs it the case that it is commented out or not configured properly? |
Configure the operating system to verify remote disconnection at the termination of nonlocal maintenance and diagnostic sessions, when used for nonlocal maintenance sessions. | SSH allows administrators to set a network responsiveness timeout interval.
After this interval has passed, the unresponsive client will be automatically logged out.
To set this timeout interval, edit the following line in /etc/ssh/sshd_config as follows: ClientAliveInterval The timeout interval is given in seconds. For example, have a timeout of 10 minutes, set interval to 600. If a shorter timeout has already been set for the login shell, that value will preempt any SSH setting made in /etc/ssh/sshd_config. Keep in mind that some processes may stop SSH from correctly detecting that the user is idle. |
medium | |||
| CCI-002450 | SRG-OS-000396-GPOS-00176 | TBD - Assigned by DISA after STIG release | The operating system must implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | CCE-80935-0: Configure System Cryptography Policy | Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated. | To configure the system cryptography policy to use ciphers only from the
policy, run the following command:
$ sudo update-crypto-policies --setThe rule checks if settings for selected crypto policy are configured as expected. Configuration files in the /etc/crypto-policies/back-ends are either symlinks to correct files provided by Crypto-policies package or they are regular files in case crypto policy customizations are applied. Crypto policies may be customized by crypto policy modules, in which case it is delimited from the base policy using a colon. |
Applicable - Configurable | Verify the operating system implements NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. If it does not, this is a finding. | To verify that cryptography policy has been configured correctly, run the
following command:
$ update-crypto-policies --showThe output should return . Run the command to check if the policy is correctly applied: $ update-crypto-policies --is-appliedThe output should be The configured policy is applied. Moreover, check if settings for selected crypto policy are as expected. List all libraries for which it holds that their crypto policies do not have symbolic link in /etc/crypto-policies/back-ends. $ ls -l /etc/crypto-policies/back-ends/ | grep '^[^l]' | tail -n +2 | awk -F' ' '{print $NF}' | awk -F'.' '{print $1}' | sort
Subsequently, check if matching libraries have drop in files in the /etc/crypto-policies/local.ddirectory. $ ls /etc/crypto-policies/local.d/ | awk -F'-' '{print $1}' | uniq | sort
Outputs of two previous commands should match. Is it the case that cryptographic policy is not configured or is configured incorrectly? |
Configure the operating system to implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | To configure the system cryptography policy to use ciphers only from the
policy, run the following command:
$ sudo update-crypto-policies --setThe rule checks if settings for selected crypto policy are configured as expected. Configuration files in the /etc/crypto-policies/back-ends are either symlinks to correct files provided by Crypto-policies package or they are regular files in case crypto policy customizations are applied. Crypto policies may be customized by crypto policy modules, in which case it is delimited from the base policy using a colon. |
high | |||
| CCI-002450 | SRG-OS-000396-GPOS-00176 | TBD - Assigned by DISA after STIG release | The operating system must implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | CCE-80942-6: Enable FIPS Mode | Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated. |
To enable FIPS mode, run the following command:
fips-mode-setup --enable The fips-mode-setup command will configure the system in FIPS mode by automatically configuring the following:
|
Applicable - Configurable | Verify the operating system implements NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. If it does not, this is a finding. | To verify that FIPS mode is enabled properly, run the following command:
fips-mode-setup --checkThe output should contain the following: FIPS mode is enabled.To verify that the cryptographic policy has been configured correctly, run the following command: $ update-crypto-policies --showThe output should return . Is it the case that FIPS mode is not enabled? |
Configure the operating system to implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. |
To enable FIPS mode, run the following command:
fips-mode-setup --enable The fips-mode-setup command will configure the system in FIPS mode by automatically configuring the following:
|
high | |||
| CCI-002450 | SRG-OS-000396-GPOS-00176 | TBD - Assigned by DISA after STIG release | The operating system must implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | CCE-84027-2: Set kernel parameter 'crypto.fips_enabled' to 1 | Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
Applicable - Configurable | Verify the operating system implements NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. If it does not, this is a finding. | To verify that kernel parameter 'crypto.fips_enabled' is set properly, run the following command:
sysctl crypto.fips_enabledThe output should contain the following: crypto.fips_enabled = 1Is it the case that crypto.fips_enabled is not 1? |
Configure the operating system to implement NSA-approved cryptography to protect classified information in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
high | |||
| SV-71033 | SRG-OS-000403-GPOS-00182 | TBD - Assigned by DISA after STIG release | The operating system must only allow the use of DoD PKI-established certificate authorities for authentication in the establishment of protected sessions to the operating system. | Untrusted Certificate Authorities (CA) can issue certificates, but they may be issued by organizations or individuals that seek to compromise DoD systems or by organizations with insufficient security controls. If the CA used for verifying the certificate is not a DoD-approved CA, trust of this CA has not been established. The DoD will only accept PKI-certificates obtained from a DoD-approved internal or external certificate authority. Reliance on CAs for the establishment of secure sessions includes, for example, the use of SSL/TLS certificates. | |||||||||||
| CCI-002475 | SRG-OS-000404-GPOS-00183 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to prevent unauthorized modification of all information at rest on all operating system components. | CCE-80789-1: Encrypt Partitions | Operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection of a cryptographic mechanism is based on the need to protect the integrity of organizational information. The strength of the mechanism is commensurate with the security category and/or classification of the information. Organizations have the flexibility to either encrypt all information on storage devices (i.e., full disk encryption) or encrypt specific data structures (e.g., files, records, or fields). | Red Hat Enterprise Linux 8 natively supports partition encryption through the
Linux Unified Key Setup-on-disk-format (LUKS) technology. The easiest way to
encrypt a partition is during installation time.
For manual installations, select the Encrypt checkbox during partition creation to encrypt the partition. When this option is selected the system will prompt for a passphrase to use in decrypting the partition. The passphrase will subsequently need to be entered manually every time the system boots. For automated/unattended installations, it is possible to use Kickstart by adding the --encrypted and --passphrase= options to the definition of each partition to be encrypted. For example, the following line would encrypt the root partition: part / --fstype=ext4 --size=100 --onpart=hda1 --encrypted --passphrase=PASSPHRASEAny PASSPHRASE is stored in the Kickstart in plaintext, and the Kickstart must then be protected accordingly. Omitting the --passphrase= option from the partition definition will cause the installer to pause and interactively ask for the passphrase during installation. By default, the Anaconda installer uses aes-xts-plain64 cipher with a minimum 512 bit key size which should be compatible with FIPS enabled. Detailed information on encrypting partitions using LUKS or LUKS ciphers can be found on the Red Hat Enterprise Linux 8 Documentation web site: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/security_hardening/encrypting-block-devices-using-luks_security-hardening . |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to prevent unauthorized modification of all information at rest on all operating system components. If it does not, this is a finding. | Check the system partitions to determine if they are encrypted with the following command:
blkid Output will be similar to: /dev/sda1: UUID=" ab12c3de-4f56-789a-8f33-3850cc8ce3a2 " TYPE="crypto_LUKS" /dev/sda2: UUID=" bc98d7ef-6g54-321h-1d24-9870de2ge1a2 " TYPE="crypto_LUKS" The boot partition and pseudo-file systems, such as /proc, /sys, and tmpfs, are not required to use disk encryption and are not a finding. Is it the case that partitions do not have a type of crypto_LUKS? |
Configure the operating system to implement cryptographic mechanisms to prevent unauthorized modification of all information at rest on all operating system components. | Red Hat Enterprise Linux 8 natively supports partition encryption through the
Linux Unified Key Setup-on-disk-format (LUKS) technology. The easiest way to
encrypt a partition is during installation time.
For manual installations, select the Encrypt checkbox during partition creation to encrypt the partition. When this option is selected the system will prompt for a passphrase to use in decrypting the partition. The passphrase will subsequently need to be entered manually every time the system boots. For automated/unattended installations, it is possible to use Kickstart by adding the --encrypted and --passphrase= options to the definition of each partition to be encrypted. For example, the following line would encrypt the root partition: part / --fstype=ext4 --size=100 --onpart=hda1 --encrypted --passphrase=PASSPHRASEAny PASSPHRASE is stored in the Kickstart in plaintext, and the Kickstart must then be protected accordingly. Omitting the --passphrase= option from the partition definition will cause the installer to pause and interactively ask for the passphrase during installation. By default, the Anaconda installer uses aes-xts-plain64 cipher with a minimum 512 bit key size which should be compatible with FIPS enabled. Detailed information on encrypting partitions using LUKS or LUKS ciphers can be found on the Red Hat Enterprise Linux 8 Documentation web site: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/security_hardening/encrypting-block-devices-using-luks_security-hardening . |
high | |||
| CCI-002476 | SRG-OS-000405-GPOS-00184 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to prevent unauthorized disclosure of all information at rest on all operating system components. | CCE-80789-1: Encrypt Partitions | Operating systems handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection of a cryptographic mechanism is based on the need to protect the integrity of organizational information. The strength of the mechanism is commensurate with the security category and/or classification of the information. Organizations have the flexibility to either encrypt all information on storage devices (i.e., full disk encryption) or encrypt specific data structures (e.g., files, records, or fields). | Red Hat Enterprise Linux 8 natively supports partition encryption through the
Linux Unified Key Setup-on-disk-format (LUKS) technology. The easiest way to
encrypt a partition is during installation time.
For manual installations, select the Encrypt checkbox during partition creation to encrypt the partition. When this option is selected the system will prompt for a passphrase to use in decrypting the partition. The passphrase will subsequently need to be entered manually every time the system boots. For automated/unattended installations, it is possible to use Kickstart by adding the --encrypted and --passphrase= options to the definition of each partition to be encrypted. For example, the following line would encrypt the root partition: part / --fstype=ext4 --size=100 --onpart=hda1 --encrypted --passphrase=PASSPHRASEAny PASSPHRASE is stored in the Kickstart in plaintext, and the Kickstart must then be protected accordingly. Omitting the --passphrase= option from the partition definition will cause the installer to pause and interactively ask for the passphrase during installation. By default, the Anaconda installer uses aes-xts-plain64 cipher with a minimum 512 bit key size which should be compatible with FIPS enabled. Detailed information on encrypting partitions using LUKS or LUKS ciphers can be found on the Red Hat Enterprise Linux 8 Documentation web site: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/security_hardening/encrypting-block-devices-using-luks_security-hardening . |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to prevent unauthorized disclosure of all information at rest on all operating system components. If it does not, this is a finding. | Check the system partitions to determine if they are encrypted with the following command:
blkid Output will be similar to: /dev/sda1: UUID=" ab12c3de-4f56-789a-8f33-3850cc8ce3a2 " TYPE="crypto_LUKS" /dev/sda2: UUID=" bc98d7ef-6g54-321h-1d24-9870de2ge1a2 " TYPE="crypto_LUKS" The boot partition and pseudo-file systems, such as /proc, /sys, and tmpfs, are not required to use disk encryption and are not a finding. Is it the case that partitions do not have a type of crypto_LUKS? |
Configure the operating system to implement cryptographic mechanisms to prevent unauthorized disclosure of all information at rest on all operating system components. | Red Hat Enterprise Linux 8 natively supports partition encryption through the
Linux Unified Key Setup-on-disk-format (LUKS) technology. The easiest way to
encrypt a partition is during installation time.
For manual installations, select the Encrypt checkbox during partition creation to encrypt the partition. When this option is selected the system will prompt for a passphrase to use in decrypting the partition. The passphrase will subsequently need to be entered manually every time the system boots. For automated/unattended installations, it is possible to use Kickstart by adding the --encrypted and --passphrase= options to the definition of each partition to be encrypted. For example, the following line would encrypt the root partition: part / --fstype=ext4 --size=100 --onpart=hda1 --encrypted --passphrase=PASSPHRASEAny PASSPHRASE is stored in the Kickstart in plaintext, and the Kickstart must then be protected accordingly. Omitting the --passphrase= option from the partition definition will cause the installer to pause and interactively ask for the passphrase during installation. By default, the Anaconda installer uses aes-xts-plain64 cipher with a minimum 512 bit key size which should be compatible with FIPS enabled. Detailed information on encrypting partitions using LUKS or LUKS ciphers can be found on the Red Hat Enterprise Linux 8 Documentation web site: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/security_hardening/encrypting-block-devices-using-luks_security-hardening . |
high | |||
| CCI-002385 | SRG-OS-000420-GPOS-00186 | TBD - Assigned by DISA after STIG release | The operating system must protect against or limit the effects of Denial of Service (DoS) attacks by ensuring the operating system is implementing rate-limiting measures on impacted network interfaces. | CCE-86506-3: Configure Firewalld to Use the Nftables Backend | DoS is a condition when a resource is not available for legitimate users. When this occurs, the organization either cannot accomplish its mission or must operate at degraded capacity. This requirement addresses the configuration of the operating system to mitigate the impact of DoS attacks that have occurred or are ongoing on system availability. For each system, known and potential DoS attacks must be identified and solutions for each type implemented. A variety of technologies exist to limit or, in some cases, eliminate the effects of DoS attacks (e.g., limiting processes or establishing memory partitions). Employing increased capacity and bandwidth, combined with service redundancy, may reduce the susceptibility to some DoS attacks. | Firewalld can be configured with many backends, such as nftables. | Applicable - Configurable | Verify the operating system protects against or limits the effects of Denial of Service (DoS) attacks by ensuring the operating system is implementing rate-limiting measures on impacted network interfaces. If it does not, this is a finding. | Verify "nftables" is configured to allow rate limits on any connection to the system with the following command: Verify "firewalld" has "nftables" set as the default backend: $ sudo grep -i firewallbackend /etc/firewalld/firewalld.conf # FirewallBackend FirewallBackend=nftables Is it the case that the "nftables" is not set as the "firewallbackend"? | Configure the operating system to protect against or limit the effects of Denial of Service (DoS) attacks by ensuring the operating system is implementing rate-limiting measures on impacted network interfaces. | Firewalld can be configured with many backends, such as nftables. | medium | |||
| CCI-002418 | SRG-OS-000423-GPOS-00187 | TBD - Assigned by DISA after STIG release | The operating system must protect the confidentiality and integrity of transmitted information. | CCE-80934-3: Configure BIND to use System Crypto Policy | Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered. This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. BIND is supported by crypto policy, but the BIND configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that the /etc/named.conf includes the appropriate configuration: In the options section of /etc/named.conf, make sure that the following line is not commented out or superseded by later includes: include "/etc/crypto-policies/back-ends/bind.config"; | Applicable - Configurable | Verify the operating system protects the confidentiality and integrity of transmitted information. If it does not, this is a finding. | To verify that BIND uses the system crypto policy, check out that the BIND config file
/etc/named.confcontains the include "/etc/crypto-policies/back-ends/bind.config";directive: $ sudo grep 'include "/etc/crypto-policies/back-ends/bind.config";' /etc/named.confVerify that the directive is at the bottom of the optionssection of the config file. Is it the case that BIND is installed and the BIND config file doesn't contain the include "/etc/crypto-policies/back-ends/bind.config";directive? |
Configure the operating system to protect the confidentiality and integrity of transmitted information. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. BIND is supported by crypto policy, but the BIND configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that the /etc/named.conf includes the appropriate configuration: In the options section of /etc/named.conf, make sure that the following line is not commented out or superseded by later includes: include "/etc/crypto-policies/back-ends/bind.config"; | high | |||
| CCI-002418 | SRG-OS-000423-GPOS-00187 | TBD - Assigned by DISA after STIG release | The operating system must protect the confidentiality and integrity of transmitted information. | CCE-84254-2: Configure GnuTLS library to use DoD-approved TLS Encryption | Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered. This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. GnuTLS is supported by system crypto policy, but the GnuTLS configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/gnutls.config contains the following line and is not commented out: +VERS-ALL:-VERS-DTLS0.9:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS1.0 | Applicable - Configurable | Verify the operating system protects the confidentiality and integrity of transmitted information. If it does not, this is a finding. | To verify if GnuTLS uses defined DoD-approved TLS Crypto Policy, run:
$ sudo grep '+VERS-ALL:-VERS-DTLS0.9:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS1.0' /etc/crypto-policies/back-ends/gnutls.configand verify that a match exists. Is it the case that cryptographic policy for gnutls is not configured or is configured incorrectly? |
Configure the operating system to protect the confidentiality and integrity of transmitted information. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. GnuTLS is supported by system crypto policy, but the GnuTLS configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that /etc/crypto-policies/back-ends/gnutls.config contains the following line and is not commented out: +VERS-ALL:-VERS-DTLS0.9:-VERS-SSL3.0:-VERS-TLS1.0:-VERS-TLS1.1:-VERS-DTLS1.0 | medium | |||
| CCI-002418 | SRG-OS-000423-GPOS-00187 | TBD - Assigned by DISA after STIG release | The operating system must protect the confidentiality and integrity of transmitted information. | CCE-85902-5: Configure SSH Client to Use FIPS 140-2 Validated Ciphers: openssh.config | Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered. This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
Applicable - Configurable | Verify the operating system protects the confidentiality and integrity of transmitted information. If it does not, this is a finding. | To verify if the OpenSSH client uses defined Cipher suite in the Crypto Policy, run:
$ grep -i ciphers /etc/crypto-policies/back-ends/openssh.configand verify that the line matches: CiphersIs it the case that Crypto Policy for OpenSSH client is not configured correctly? |
Configure the operating system to protect the confidentiality and integrity of transmitted information. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages.
OpenSSH is supported by system crypto policy, but the OpenSSH configuration may be
set up incorrectly.
To check that Crypto Policies settings for ciphers are configured correctly, ensure that
/etc/crypto-policies/back-ends/openssh.config contains the following
line and is not commented out:
Ciphers |
high | |||
| CCI-002418 | SRG-OS-000423-GPOS-00187 | TBD - Assigned by DISA after STIG release | The operating system must protect the confidentiality and integrity of transmitted information. | CCE-83303-8: Install the OpenSSH Server Package | Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered. This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. | The openssh-server package should be installed.
The openssh-server package can be installed with the following command:
$ sudo yum install openssh-server |
Applicable - Configurable | Verify the operating system protects the confidentiality and integrity of transmitted information. If it does not, this is a finding. | Run the following command to determine if the openssh-server package is installed: $ rpm -q openssh-serverIs it the case that the package is not installed? |
Configure the operating system to protect the confidentiality and integrity of transmitted information. | The openssh-server package should be installed.
The openssh-server package can be installed with the following command:
$ sudo yum install openssh-server |
medium | |||
| CCI-002418 | SRG-OS-000423-GPOS-00187 | TBD - Assigned by DISA after STIG release | The operating system must protect the confidentiality and integrity of transmitted information. | CCE-82426-8: Enable the OpenSSH Service | Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered. This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. | The SSH server service, sshd, is commonly needed.
The sshd service can be enabled with the following command:
$ sudo systemctl enable sshd.service |
Applicable - Configurable | Verify the operating system protects the confidentiality and integrity of transmitted information. If it does not, this is a finding. |
Run the following command to determine the current status of the
sshd service:
$ sudo systemctl is-active sshdIf the service is running, it should return the following: activeIs it the case that sshd service is disabled? |
Configure the operating system to protect the confidentiality and integrity of transmitted information. | The SSH server service, sshd, is commonly needed.
The sshd service can be enabled with the following command:
$ sudo systemctl enable sshd.service |
medium | |||
| CCI-002418 | SRG-OS-000423-GPOS-00187 | TBD - Assigned by DISA after STIG release | The operating system must protect the confidentiality and integrity of transmitted information. | CCE-84027-2: Set kernel parameter 'crypto.fips_enabled' to 1 | Without protection of the transmitted information, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read or altered. This requirement applies to both internal and external networks and all types of information system components from which information can be transmitted (e.g., servers, mobile devices, notebook computers, printers, copiers, scanners, and facsimile machines). Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of organizational information can be accomplished by physical means (e.g., employing physical distribution systems) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
Applicable - Configurable | Verify the operating system protects the confidentiality and integrity of transmitted information. If it does not, this is a finding. | To verify that kernel parameter 'crypto.fips_enabled' is set properly, run the following command:
sysctl crypto.fips_enabledThe output should contain the following: crypto.fips_enabled = 1Is it the case that crypto.fips_enabled is not 1? |
Configure the operating system to protect the confidentiality and integrity of transmitted information. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
high | |||
| CCI-002421 | SRG-OS-000424-GPOS-00188 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). | CCE-83303-8: Install the OpenSSH Server Package | Encrypting information for transmission protects information from unauthorized disclosure and modification. Cryptographic mechanisms implemented to protect information integrity include, for example, cryptographic hash functions which have common application in digital signatures, checksums, and message authentication codes. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When transmitting data, operating systems need to leverage transmission protection mechanisms such as TLS, SSL VPNs, or IPSec. Alternative physical protection measures include PDS. PDSs are used to transmit unencrypted classified National Security Information (NSI) through an area of lesser classification or control. Since the classified NSI is unencrypted, the PDS must provide adequate electrical, electromagnetic, and physical safeguards to deter exploitation. | The openssh-server package should be installed.
The openssh-server package can be installed with the following command:
$ sudo yum install openssh-server |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). If it does not, this is a finding. | Run the following command to determine if the openssh-server package is installed: $ rpm -q openssh-serverIs it the case that the package is not installed? |
Configure the operating system to implement cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). | The openssh-server package should be installed.
The openssh-server package can be installed with the following command:
$ sudo yum install openssh-server |
medium | |||
| CCI-002421 | SRG-OS-000424-GPOS-00188 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). | CCE-82426-8: Enable the OpenSSH Service | Encrypting information for transmission protects information from unauthorized disclosure and modification. Cryptographic mechanisms implemented to protect information integrity include, for example, cryptographic hash functions which have common application in digital signatures, checksums, and message authentication codes. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When transmitting data, operating systems need to leverage transmission protection mechanisms such as TLS, SSL VPNs, or IPSec. Alternative physical protection measures include PDS. PDSs are used to transmit unencrypted classified National Security Information (NSI) through an area of lesser classification or control. Since the classified NSI is unencrypted, the PDS must provide adequate electrical, electromagnetic, and physical safeguards to deter exploitation. | The SSH server service, sshd, is commonly needed.
The sshd service can be enabled with the following command:
$ sudo systemctl enable sshd.service |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). If it does not, this is a finding. |
Run the following command to determine the current status of the
sshd service:
$ sudo systemctl is-active sshdIf the service is running, it should return the following: activeIs it the case that sshd service is disabled? |
Configure the operating system to implement cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). | The SSH server service, sshd, is commonly needed.
The sshd service can be enabled with the following command:
$ sudo systemctl enable sshd.service |
medium | |||
| CCI-002421 | SRG-OS-000424-GPOS-00188 | TBD - Assigned by DISA after STIG release | The operating system must implement cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). | CCE-83501-7: Deactivate Wireless Network Interfaces | Encrypting information for transmission protects information from unauthorized disclosure and modification. Cryptographic mechanisms implemented to protect information integrity include, for example, cryptographic hash functions which have common application in digital signatures, checksums, and message authentication codes. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When transmitting data, operating systems need to leverage transmission protection mechanisms such as TLS, SSL VPNs, or IPSec. Alternative physical protection measures include PDS. PDSs are used to transmit unencrypted classified National Security Information (NSI) through an area of lesser classification or control. Since the classified NSI is unencrypted, the PDS must provide adequate electrical, electromagnetic, and physical safeguards to deter exploitation. | Deactivating wireless network interfaces should prevent normal usage of the wireless
capability.
Configure the system to disable all wireless network interfaces with the following command: $ sudo nmcli radio all off |
Applicable - Configurable | Verify the operating system implements cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). If it does not, this is a finding. | Verify that there are no wireless interfaces configured on the system
with the following command:
Note: This requirement is Not Applicable for systems that do not have physical wireless network radios.
$ nmcli device status DEVICE TYPE STATE CONNECTION virbr0 bridge connected virbr0 wlp7s0 wifi connected wifiSSID enp6s0 ethernet disconnected -- p2p-dev-wlp7s0 wifi-p2p disconnected -- lo loopback unmanaged -- virbr0-nic tun unmanaged --Is it the case that a wireless interface is configured and has not been documented and approved by the Information System Security Officer (ISSO)? |
Configure the operating system to implement cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by alternative physical safeguards, such as, at a minimum, a Protected Distribution System (PDS). | Deactivating wireless network interfaces should prevent normal usage of the wireless
capability.
Configure the system to disable all wireless network interfaces with the following command: $ sudo nmcli radio all off |
medium | |||
| CCI-002420 | SRG-OS-000425-GPOS-00189 | TBD - Assigned by DISA after STIG release | The operating system must maintain the confidentiality and integrity of information during preparation for transmission. | CCE-83303-8: Install the OpenSSH Server Package | Information can be either unintentionally or maliciously disclosed or modified during preparation for transmission, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Ensuring the confidentiality of transmitted information requires the operating system to take measures in preparing information for transmission. This can be accomplished via access control and encryption. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When transmitting data, operating systems need to support transmission protection mechanisms such as TLS, SSL VPNs, or IPSec. | The openssh-server package should be installed.
The openssh-server package can be installed with the following command:
$ sudo yum install openssh-server |
Applicable - Configurable | Verify the operating system maintains the confidentiality and integrity of information during preparation for transmission. If it does not, this is a finding. | Run the following command to determine if the openssh-server package is installed: $ rpm -q openssh-serverIs it the case that the package is not installed? |
Configure the operating system to maintain the confidentiality and integrity of information during preparation for transmission. | The openssh-server package should be installed.
The openssh-server package can be installed with the following command:
$ sudo yum install openssh-server |
medium | |||
| CCI-002420 | SRG-OS-000425-GPOS-00189 | TBD - Assigned by DISA after STIG release | The operating system must maintain the confidentiality and integrity of information during preparation for transmission. | CCE-82426-8: Enable the OpenSSH Service | Information can be either unintentionally or maliciously disclosed or modified during preparation for transmission, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Ensuring the confidentiality of transmitted information requires the operating system to take measures in preparing information for transmission. This can be accomplished via access control and encryption. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When transmitting data, operating systems need to support transmission protection mechanisms such as TLS, SSL VPNs, or IPSec. | The SSH server service, sshd, is commonly needed.
The sshd service can be enabled with the following command:
$ sudo systemctl enable sshd.service |
Applicable - Configurable | Verify the operating system maintains the confidentiality and integrity of information during preparation for transmission. If it does not, this is a finding. |
Run the following command to determine the current status of the
sshd service:
$ sudo systemctl is-active sshdIf the service is running, it should return the following: activeIs it the case that sshd service is disabled? |
Configure the operating system to maintain the confidentiality and integrity of information during preparation for transmission. | The SSH server service, sshd, is commonly needed.
The sshd service can be enabled with the following command:
$ sudo systemctl enable sshd.service |
medium | |||
| CCI-002422 | SRG-OS-000426-GPOS-00190 | TBD - Assigned by DISA after STIG release | The operating system must maintain the confidentiality and integrity of information during reception. | CCE-80934-3: Configure BIND to use System Crypto Policy | Information can be either unintentionally or maliciously disclosed or modified during reception, including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Ensuring the confidentiality of transmitted information requires the operating system to take measures in preparing information for transmission. This can be accomplished via access control and encryption. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When receiving data, operating systems need to leverage protection mechanisms such as TLS, SSL VPNs, or IPSec. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. BIND is supported by crypto policy, but the BIND configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that the /etc/named.conf includes the appropriate configuration: In the options section of /etc/named.conf, make sure that the following line is not commented out or superseded by later includes: include "/etc/crypto-policies/back-ends/bind.config"; | Applicable - Configurable | Verify the operating system maintains the confidentiality and integrity of information during reception. If it does not, this is a finding. | To verify that BIND uses the system crypto policy, check out that the BIND config file
/etc/named.confcontains the include "/etc/crypto-policies/back-ends/bind.config";directive: $ sudo grep 'include "/etc/crypto-policies/back-ends/bind.config";' /etc/named.confVerify that the directive is at the bottom of the optionssection of the config file. Is it the case that BIND is installed and the BIND config file doesn't contain the include "/etc/crypto-policies/back-ends/bind.config";directive? |
Configure the operating system to maintain the confidentiality and integrity of information during reception. | Crypto Policies provide a centralized control over crypto algorithms usage of many packages. BIND is supported by crypto policy, but the BIND configuration may be set up to ignore it. To check that Crypto Policies settings are configured correctly, ensure that the /etc/named.conf includes the appropriate configuration: In the options section of /etc/named.conf, make sure that the following line is not commented out or superseded by later includes: include "/etc/crypto-policies/back-ends/bind.config"; | high | |||
| CCI-002422 | SRG-OS-000426-GPOS-00190 | TBD - Assigned by DISA after STIG release | The operating system must maintain the confidentiality and integrity of information during reception. | CCE-83303-8: Install the OpenSSH Server Package | Information can be either unintentionally or maliciously disclosed or modified during reception, including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Ensuring the confidentiality of transmitted information requires the operating system to take measures in preparing information for transmission. This can be accomplished via access control and encryption. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When receiving data, operating systems need to leverage protection mechanisms such as TLS, SSL VPNs, or IPSec. | The openssh-server package should be installed.
The openssh-server package can be installed with the following command:
$ sudo yum install openssh-server |
Applicable - Configurable | Verify the operating system maintains the confidentiality and integrity of information during reception. If it does not, this is a finding. | Run the following command to determine if the openssh-server package is installed: $ rpm -q openssh-serverIs it the case that the package is not installed? |
Configure the operating system to maintain the confidentiality and integrity of information during reception. | The openssh-server package should be installed.
The openssh-server package can be installed with the following command:
$ sudo yum install openssh-server |
medium | |||
| CCI-002422 | SRG-OS-000426-GPOS-00190 | TBD - Assigned by DISA after STIG release | The operating system must maintain the confidentiality and integrity of information during reception. | CCE-82426-8: Enable the OpenSSH Service | Information can be either unintentionally or maliciously disclosed or modified during reception, including, for example, during aggregation, at protocol transformation points, and during packing/unpacking. These unauthorized disclosures or modifications compromise the confidentiality or integrity of the information. Ensuring the confidentiality of transmitted information requires the operating system to take measures in preparing information for transmission. This can be accomplished via access control and encryption. Use of this requirement will be limited to situations where the data owner has a strict requirement for ensuring data integrity and confidentiality is maintained at every step of the data transfer and handling process. When receiving data, operating systems need to leverage protection mechanisms such as TLS, SSL VPNs, or IPSec. | The SSH server service, sshd, is commonly needed.
The sshd service can be enabled with the following command:
$ sudo systemctl enable sshd.service |
Applicable - Configurable | Verify the operating system maintains the confidentiality and integrity of information during reception. If it does not, this is a finding. |
Run the following command to determine the current status of the
sshd service:
$ sudo systemctl is-active sshdIf the service is running, it should return the following: activeIs it the case that sshd service is disabled? |
Configure the operating system to maintain the confidentiality and integrity of information during reception. | The SSH server service, sshd, is commonly needed.
The sshd service can be enabled with the following command:
$ sudo systemctl enable sshd.service |
medium | |||
| V-56727 | SRG-OS-000432-GPOS-00191 | TBD - Assigned by DISA after STIG release | The operating system must behave in a predictable and documented manner that reflects organizational and system objectives when invalid inputs are received. | A common vulnerability of operating system is unpredictable behavior when invalid inputs are received. This requirement guards against adverse or unintended system behavior caused by invalid inputs, where information system responses to the invalid input may be disruptive or cause the system to fail into an unsafe state. The behavior will be derived from the organizational and system requirements and includes, but is not limited to, notification of the appropriate personnel, creating an audit record, and rejecting invalid input. | |||||||||||
| CCI-002824 | SRG-OS-000433-GPOS-00192 | TBD - Assigned by DISA after STIG release | The operating system must implement non-executable data to protect its memory from unauthorized code execution. | CCE-83918-3: Enable NX or XD Support in the BIOS | Some adversaries launch attacks with the intent of executing code in non-executable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory include, for example, data execution prevention and address space layout randomization. Data execution prevention safeguards can either be hardware-enforced or software-enforced with hardware providing the greater strength of mechanism. Examples of attacks are buffer overflow attacks. | Reboot the system and enter the BIOS or Setup configuration menu. Navigate the BIOS configuration menu and make sure that the option is enabled. The setting may be located under a Security section. Look for Execute Disable (XD) on Intel-based systems and No Execute (NX) on AMD-based systems. | Applicable - Configurable | Verify the operating system implements non-executable data to protect its memory from unauthorized code execution. If it does not, this is a finding. | Verify the NX (no-execution) bit flag is set on the system. Check that the no-execution bit flag is set with the following commands: $ sudo dmesg | grep NX [ 0.000000] NX (Execute Disable) protection: active If "dmesg" does not show "NX (Execute Disable) protection" active, check the cpuinfo settings with the following command: $ sudo grep flags /proc/cpuinfo flags : fpu vme de pse tsc ms nx rdtscp lm constant_ts The output should contain the "nx" flag. Is it the case that NX is disabled? | Configure the operating system to implement non-executable data to protect its memory from unauthorized code execution. | Reboot the system and enter the BIOS or Setup configuration menu. Navigate the BIOS configuration menu and make sure that the option is enabled. The setting may be located under a Security section. Look for Execute Disable (XD) on Intel-based systems and No Execute (NX) on AMD-based systems. | medium | |||
| CCI-002824 | SRG-OS-000433-GPOS-00192 | TBD - Assigned by DISA after STIG release | The operating system must implement non-executable data to protect its memory from unauthorized code execution. | CCE-80945-9: Enable SLUB/SLAB allocator poisoning | Some adversaries launch attacks with the intent of executing code in non-executable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory include, for example, data execution prevention and address space layout randomization. Data execution prevention safeguards can either be hardware-enforced or software-enforced with hardware providing the greater strength of mechanism. Examples of attacks are buffer overflow attacks. | To enable poisoning of SLUB/SLAB objects,
add the argument slub_debug= to the default
GRUB 2 command line for the Linux operating system.
To ensure that slub_debug= is added as a kernel command line
argument to newly installed kernels, add slub_debug= to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... slub_debug= ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="slub_debug=" |
Applicable - Configurable | Verify the operating system implements non-executable data to protect its memory from unauthorized code execution. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes slub_debug=,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*slub_debug=.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*slub_debug=.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'slub_debug='The command should not return any output. Is it the case that SLUB/SLAB poisoning is not enabled? |
Configure the operating system to implement non-executable data to protect its memory from unauthorized code execution. | To enable poisoning of SLUB/SLAB objects,
add the argument slub_debug= to the default
GRUB 2 command line for the Linux operating system.
To ensure that slub_debug= is added as a kernel command line
argument to newly installed kernels, add slub_debug= to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... slub_debug= ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="slub_debug=" |
medium | |||
| CCI-002824 | SRG-OS-000433-GPOS-00192 | TBD - Assigned by DISA after STIG release | The operating system must implement non-executable data to protect its memory from unauthorized code execution. | CCE-80915-2: Restrict Exposed Kernel Pointer Addresses Access | Some adversaries launch attacks with the intent of executing code in non-executable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory include, for example, data execution prevention and address space layout randomization. Data execution prevention safeguards can either be hardware-enforced or software-enforced with hardware providing the greater strength of mechanism. Examples of attacks are buffer overflow attacks. | To set the runtime status of the kernel.kptr_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.kptr_restrict=To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kptr_restrict = |
Applicable - Configurable | Verify the operating system implements non-executable data to protect its memory from unauthorized code execution. If it does not, this is a finding. | The runtime status of the kernel.kptr_restrict kernel parameter can be queried
by running the following command:
$ sysctl kernel.kptr_restrictThe output of the command should indicate either: kernel.kptr_restrict = 1
or:
kernel.kptr_restrict = 2
The output of the command should not indicate:
kernel.kptr_restrict = 0
The preferable way how to assure the runtime compliance is to have
correct persistent configuration, and rebooting the system.
The persistent kernel parameter configuration is performed by specifying the appropriate
assignment in any file located in the /etc/sysctl.ddirectory. Verify that there is not any existing incorrect configuration by executing the following command: $ grep -r '^\s*kernel.kptr_restrict\s*=' /etc/sysctl.conf /etc/sysctl.dThe command should not find any assignments other than: kernel.kptr_restrict = 1 or: kernel.kptr_restrict = 2 Conflicting assignments are not allowed. Is it the case that the kernel.kptr_restrict is not set to 1 or 2 or is configured to be 0? |
Configure the operating system to implement non-executable data to protect its memory from unauthorized code execution. | To set the runtime status of the kernel.kptr_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.kptr_restrict=To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kptr_restrict = |
medium | |||
| CCI-002824 | SRG-OS-000433-GPOS-00193 | TBD - Assigned by DISA after STIG release | The operating system must implement address space layout randomization to protect its memory from unauthorized code execution. | CCE-82194-2: Enable Kernel Page-Table Isolation (KPTI) | Some adversaries launch attacks with the intent of executing code in non-executable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory include, for example, data execution prevention and address space layout randomization. Data execution prevention safeguards can either be hardware-enforced or software-enforced with hardware providing the greater strength of mechanism. Examples of attacks are buffer overflow attacks. | To enable Kernel page-table isolation,
add the argument pti=on to the default
GRUB 2 command line for the Linux operating system.
To ensure that pti=on is added as a kernel command line
argument to newly installed kernels, add pti=on to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... pti=on ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="pti=on" |
Applicable - Configurable | Verify the operating system implements address space layout randomization to protect its memory from unauthorized code execution. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes pti=on,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*pti=on.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*pti=on.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'pti=on'The command should not return any output. Is it the case that Kernel page-table isolation is not enabled? |
Configure the operating system to implement address space layout randomization to protect its memory from unauthorized code execution. | To enable Kernel page-table isolation,
add the argument pti=on to the default
GRUB 2 command line for the Linux operating system.
To ensure that pti=on is added as a kernel command line
argument to newly installed kernels, add pti=on to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... pti=on ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="pti=on" |
low | |||
| CCI-002824 | SRG-OS-000433-GPOS-00193 | TBD - Assigned by DISA after STIG release | The operating system must implement address space layout randomization to protect its memory from unauthorized code execution. | CCE-80916-0: Enable Randomized Layout of Virtual Address Space | Some adversaries launch attacks with the intent of executing code in non-executable regions of memory or in memory locations that are prohibited. Security safeguards employed to protect memory include, for example, data execution prevention and address space layout randomization. Data execution prevention safeguards can either be hardware-enforced or software-enforced with hardware providing the greater strength of mechanism. Examples of attacks are buffer overflow attacks. | To set the runtime status of the kernel.randomize_va_space kernel parameter, run the following command: $ sudo sysctl -w kernel.randomize_va_space=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.randomize_va_space = 2 |
Applicable - Configurable | Verify the operating system implements address space layout randomization to protect its memory from unauthorized code execution. If it does not, this is a finding. | The runtime status of the kernel.randomize_va_space kernel parameter can be queried
by running the following command:
$ sysctl kernel.randomize_va_space 2.
Is it the case that the correct value is not returned? |
Configure the operating system to implement address space layout randomization to protect its memory from unauthorized code execution. | To set the runtime status of the kernel.randomize_va_space kernel parameter, run the following command: $ sudo sysctl -w kernel.randomize_va_space=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.randomize_va_space = 2 |
medium | |||
| CCI-002617 | SRG-OS-000437-GPOS-00194 | TBD - Assigned by DISA after STIG release | The operating system must remove all software components after updated versions have been installed. | CCE-82476-3: Ensure yum Removes Previous Package Versions | Previous versions of software components that are not removed from the information system after updates have been installed may be exploited by adversaries. Some information technology products may remove older versions of software automatically from the information system. | yum should be configured to remove previous software components after new versions have been installed. To configure yum to remove the previous software components after updating, set the clean_requirements_on_remove to 1 in /etc/yum.conf. | Applicable - Configurable | Verify the operating system removes all software components after updated versions have been installed. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 removes all software components after updated versions have been installed.
$ grep clean_requirements_on_remove /etc/yum.conf clean_requirements_on_remove=1Is it the case that '"clean_requirements_on_remove" is not set to "1"'? |
Configure the operating system to remove all software components after updated versions have been installed. | yum should be configured to remove previous software components after new versions have been installed. To configure yum to remove the previous software components after updating, set the clean_requirements_on_remove to 1 in /etc/yum.conf. | low | |||
| CCI-002696 | SRG-OS-000445-GPOS-00199 | TBD - Assigned by DISA after STIG release | The operating system must verify correct operation of all security functions. | CCE-80675-2: Build and Test AIDE Database | Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. This requirement applies to operating systems performing security function verification/testing and/or systems and environments that require this functionality. | Run the following command to generate a new database:
$ sudo /usr/sbin/aide --initBy default, the database will be written to the file /var/lib/aide/aide.db.new.gz. Storing the database, the configuration file /etc/aide.conf, and the binary /usr/sbin/aide (or hashes of these files), in a secure location (such as on read-only media) provides additional assurance about their integrity. The newly-generated database can be installed as follows: $ sudo cp /var/lib/aide/aide.db.new.gz /var/lib/aide/aide.db.gzTo initiate a manual check, run the following command: $ sudo /usr/sbin/aide --checkIf this check produces any unexpected output, investigate. |
Applicable - Configurable | Verify the operating system verifies correct operation of all security functions. If it does not, this is a finding. | To find the location of the AIDE database file, run the following command:
$ sudo ls -l DBDIR/database_file_nameIs it the case that there is no database file? |
Configure the operating system to verify correct operation of all security functions. | Run the following command to generate a new database:
$ sudo /usr/sbin/aide --initBy default, the database will be written to the file /var/lib/aide/aide.db.new.gz. Storing the database, the configuration file /etc/aide.conf, and the binary /usr/sbin/aide (or hashes of these files), in a secure location (such as on read-only media) provides additional assurance about their integrity. The newly-generated database can be installed as follows: $ sudo cp /var/lib/aide/aide.db.new.gz /var/lib/aide/aide.db.gzTo initiate a manual check, run the following command: $ sudo /usr/sbin/aide --checkIf this check produces any unexpected output, investigate. |
medium | |||
| CCI-002696 | SRG-OS-000445-GPOS-00199 | TBD - Assigned by DISA after STIG release | The operating system must verify correct operation of all security functions. | CCE-80844-4: Install AIDE | Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. This requirement applies to operating systems performing security function verification/testing and/or systems and environments that require this functionality. | The aide package can be installed with the following command:
$ sudo yum install aide |
Applicable - Configurable | Verify the operating system verifies correct operation of all security functions. If it does not, this is a finding. | Run the following command to determine if the aide package is installed: $ rpm -q aideIs it the case that the package is not installed? |
Configure the operating system to verify correct operation of all security functions. | The aide package can be installed with the following command:
$ sudo yum install aide |
medium | |||
| CCI-002696 | SRG-OS-000445-GPOS-00199 | TBD - Assigned by DISA after STIG release | The operating system must verify correct operation of all security functions. | CCE-80868-3: Configure SELinux Policy | Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. This requirement applies to operating systems performing security function verification/testing and/or systems and environments that require this functionality. | The SELinux targeted policy is appropriate for
general-purpose desktops and servers, as well as systems in many other roles.
To configure the system to use this policy, add or correct the following line
in /etc/selinux/config:
SELINUXTYPE=Other policies, such as mls, provide additional security labeling and greater confinement but are not compatible with many general-purpose use cases. |
Applicable - Configurable | Verify the operating system verifies correct operation of all security functions. If it does not, this is a finding. | Verify the SELINUX on Red Hat Enterprise Linux 8 is using the policy with the following command: $ sestatus | grep policy Loaded policy name: Is it the case that the loaded policy name is not ""? | Configure the operating system to verify correct operation of all security functions. | The SELinux targeted policy is appropriate for
general-purpose desktops and servers, as well as systems in many other roles.
To configure the system to use this policy, add or correct the following line
in /etc/selinux/config:
SELINUXTYPE=Other policies, such as mls, provide additional security labeling and greater confinement but are not compatible with many general-purpose use cases. |
medium | |||
| CCI-002696 | SRG-OS-000445-GPOS-00199 | TBD - Assigned by DISA after STIG release | The operating system must verify correct operation of all security functions. | CCE-80869-1: Ensure SELinux State is Enforcing | Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. This requirement applies to operating systems performing security function verification/testing and/or systems and environments that require this functionality. | The SELinux state should be set to at
system boot time. In the file /etc/selinux/config, add or correct the
following line to configure the system to boot into enforcing mode:
SELINUX= |
Applicable - Configurable | Verify the operating system verifies correct operation of all security functions. If it does not, this is a finding. | Ensure that Red Hat Enterprise Linux 8 verifies correct operation of security functions. Check if "SELinux" is active and in "" mode with the following command: $ sudo getenforce Is it the case that SELINUX is not set to enforcing? | Configure the operating system to verify correct operation of all security functions. | The SELinux state should be set to at
system boot time. In the file /etc/selinux/config, add or correct the
following line to configure the system to boot into enforcing mode:
SELINUX= |
high | |||
| CCI-002699 | SRG-OS-000446-GPOS-00200 | TBD - Assigned by DISA after STIG release | The operating system must perform verification of the correct operation of security functions: upon system start-up and/or restart; upon command by a user with privileged access; and/or every 30 days. | CCE-82891-3: Configure Notification of Post-AIDE Scan Details | Without verification of the security functions, security functions may not operate correctly and the failure may go unnoticed. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. Notifications provided by information systems include, for example, electronic alerts to system administrators, messages to local computer consoles, and/or hardware indications, such as lights. This requirement applies to operating systems performing security function verification/testing and/or systems and environments that require this functionality. | AIDE should notify appropriate personnel of the details of a scan after the scan has been run.
If AIDE has already been configured for periodic execution in /etc/crontab, append the
following line to the existing AIDE line:
| /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostOtherwise, add the following line to /etc/crontab: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostAIDE can be executed periodically through other means; this is merely one example. |
Applicable - Configurable | Verify the operating system performs verification of the correct operation of security functions: upon system start-up and/or restart; upon command by a user with privileged access; and/or every 30 days. If it does not, this is a finding. | To determine that periodic AIDE execution has been scheduled, run the following command:
$ grep aide /etc/crontabThe output should return something similar to the following: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostThe email address that the notifications are sent to can be changed by overriding . Is it the case that AIDE has not been configured or has not been configured to notify personnel of scan details? |
Configure the operating system to perform verification of the correct operation of security functions: upon system start-up and/or restart; upon command by a user with privileged access; and/or every 30 days. | AIDE should notify appropriate personnel of the details of a scan after the scan has been run.
If AIDE has already been configured for periodic execution in /etc/crontab, append the
following line to the existing AIDE line:
| /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostOtherwise, add the following line to /etc/crontab: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostAIDE can be executed periodically through other means; this is merely one example. |
medium | |||
| CCI-002702 | SRG-OS-000447-GPOS-00201 | TBD - Assigned by DISA after STIG release | The operating system must shut down the information system, restart the information system, and/or notify the system administrator when anomalies in the operation of any security functions are discovered. | CCE-82891-3: Configure Notification of Post-AIDE Scan Details | If anomalies are not acted upon, security functions may fail to secure the system. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. Notifications provided by information systems include messages to local computer consoles, and/or hardware indications, such as lights. This capability must take into account operational requirements for availability for selecting an appropriate response. The organization may choose to shut down or restart the information system upon security function anomaly detection. | AIDE should notify appropriate personnel of the details of a scan after the scan has been run.
If AIDE has already been configured for periodic execution in /etc/crontab, append the
following line to the existing AIDE line:
| /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostOtherwise, add the following line to /etc/crontab: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostAIDE can be executed periodically through other means; this is merely one example. |
Applicable - Configurable | Verify the operating system shuts down the information system, restarts the information system, and/or notifies the system administrator when anomalies in the operation of any security functions are discovered. If it does not, this is a finding. | To determine that periodic AIDE execution has been scheduled, run the following command:
$ grep aide /etc/crontabThe output should return something similar to the following: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostThe email address that the notifications are sent to can be changed by overriding . Is it the case that AIDE has not been configured or has not been configured to notify personnel of scan details? |
Configure the operating system to shut down the information system, restart the information system, and/or notify the system administrator when anomalies in the operation of the security functions are discovered. | AIDE should notify appropriate personnel of the details of a scan after the scan has been run.
If AIDE has already been configured for periodic execution in /etc/crontab, append the
following line to the existing AIDE line:
| /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostOtherwise, add the following line to /etc/crontab: 05 4 * * * root /usr/sbin/aide --check | /bin/mail -s "$(hostname) - AIDE Integrity Check" root@localhostAIDE can be executed periodically through other means; this is merely one example. |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000458-GPOS-00203 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access security objects occur. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access security objects occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access security objects occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000461-GPOS-00205 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000461-GPOS-00205 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000461-GPOS-00205 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000461-GPOS-00205 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000461-GPOS-00205 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000461-GPOS-00205 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to access categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-89446-9: Record Any Attempts to Run chacl | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chacl" command with the following command: $ sudo auditctl -l | grep chacl -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80698-4: Record Any Attempts to Run chcon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80700-8: Record Any Attempts to Run semanage | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "semanage" command with the following command: $ sudo auditctl -l | grep semanage -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-88437-9: Record Any Attempts to Run setfacl | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfacl" command with the following command: $ sudo auditctl -l | grep setfacl -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-82280-9: Record Any Attempts to Run setfiles | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfiles" command with the following command: $ sudo auditctl -l | grep setfiles -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80701-6: Record Any Attempts to Run setsebool | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setsebool" command with the following command: $ sudo auditctl -l | grep setsebool -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -k privileged Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-90783-2: Configure immutable Audit login UIDs | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to make login UIDs immutable, run
one of the following commands.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), run the following:
sudo grep immutable /etc/audit/rules.d/*.rulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, run the following command: sudo grep immutable /etc/audit/audit.rulesThe following line should be returned: --loginuid-immutableIs it the case that the system is not configured to make login UIDs immutable? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80711-5: Ensure auditd Collects Information on Kernel Module Unloading - delete_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
delete_module system call, run the following command:
$ sudo grep "delete_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80712-3: Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
finit_module system call, run the following command:
$ sudo grep "finit_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80713-1: Ensure auditd Collects Information on Kernel Module Loading - init_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
init_module system call, run the following command:
$ sudo grep "init_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80719-8: Record Attempts to Alter Logon and Logout Events - lastlog | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/var/log/lastlog" with the following command: $ sudo auditctl -l | grep /var/log/lastlog -w /var/log/lastlog -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80722-2: Ensure auditd Collects Information on Exporting to Media (successful) | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
mount system call, run the following command:
$ sudo grep "mount" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80725-5: Ensure auditd Collects Information on the Use of Privileged Commands - chage | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chage" command with the following command: $ sudo auditctl -l | grep chage -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chage Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80726-3: Ensure auditd Collects Information on the Use of Privileged Commands - chsh | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chsh" command with the following command: $ sudo auditctl -l | grep chsh -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chsh Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80727-1: Ensure auditd Collects Information on the Use of Privileged Commands - crontab | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "crontab" command with the following command: $ sudo auditctl -l | grep crontab -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -k privileged-crontab Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80728-9: Ensure auditd Collects Information on the Use of Privileged Commands - gpasswd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "gpasswd" command with the following command: $ sudo auditctl -l | grep gpasswd -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-gpasswd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-89455-0: Ensure auditd Collects Information on the Use of Privileged Commands - kmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "kmod" command with the following command: $ sudo auditctl -l | grep kmod -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-kmod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80989-7: Ensure auditd Collects Information on the Use of Privileged Commands - mount | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "mount" command with the following command: $ sudo auditctl -l | grep mount -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-mount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80729-7: Ensure auditd Collects Information on the Use of Privileged Commands - newgrp | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "newgrp" command with the following command: $ sudo auditctl -l | grep newgrp -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -k privileged-newgrp Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80730-5: Ensure auditd Collects Information on the Use of Privileged Commands - pam_timestamp_check | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "pam_timestamp_check" command with the following command: $ sudo auditctl -l | grep pam_timestamp_check -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -k privileged-pam_timestamp_check Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80731-3: Ensure auditd Collects Information on the Use of Privileged Commands - passwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "passwd" command with the following command: $ sudo auditctl -l | grep passwd -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-passwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80732-1: Ensure auditd Collects Information on the Use of Privileged Commands - postdrop | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postdrop" command with the following command: $ sudo auditctl -l | grep postdrop -a always,exit -F path=/usr/bin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postdrop Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80733-9: Ensure auditd Collects Information on the Use of Privileged Commands - postqueue | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postqueue" command with the following command: $ sudo auditctl -l | grep postqueue -a always,exit -F path=/usr/bin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postqueue Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-85944-7: Record Any Attempts to Run ssh-agent | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-agent" command with the following command: $ sudo auditctl -l | grep ssh-agent -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80735-4: Ensure auditd Collects Information on the Use of Privileged Commands - ssh-keysign | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-keysign" command with the following command: $ sudo auditctl -l | grep ssh-keysign -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-keysign Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80736-2: Ensure auditd Collects Information on the Use of Privileged Commands - su | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "su" command with the following command: $ sudo auditctl -l | grep su -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -k privileged-su Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80737-0: Ensure auditd Collects Information on the Use of Privileged Commands - sudo | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "sudo" command with the following command: $ sudo auditctl -l | grep sudo -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80739-6: Ensure auditd Collects Information on the Use of Privileged Commands - umount | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "umount" command with the following command: $ sudo auditctl -l | grep umount -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-umount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80740-4: Ensure auditd Collects Information on the Use of Privileged Commands - unix_chkpwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_chkpwd" command with the following command: $ sudo auditctl -l | grep unix_chkpwd -a always,exit -F path=/usr/bin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_chkpwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-89480-8: Ensure auditd Collects Information on the Use of Privileged Commands - unix_update | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_update" command with the following command: $ sudo auditctl -l | grep unix_update -a always,exit -F path=/usr/bin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80741-2: Ensure auditd Collects Information on the Use of Privileged Commands - userhelper | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "userhelper" command with the following command: $ sudo auditctl -l | grep userhelper -a always,exit -F path=/usr/bin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -k privileged-userhelper Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-86027-0: Ensure auditd Collects Information on the Use of Privileged Commands - usermod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "usermod" command with the following command: $ sudo auditctl -l | grep usermod -a always,exit -F path=/usr/bin/usermod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-usermod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80825-3: Enable Auditing for Processes Which Start Prior to the Audit Daemon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit=1'The command should not return any output. Is it the case that auditing is not enabled at boot time? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
low | |||
| CCI-000172 | SRG-OS-000462-GPOS-00206 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify privileges occur. | CCE-80943-4: Extend Audit Backlog Limit for the Audit Daemon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify privileges occur. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit_backlog_limit=8192,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit_backlog_limit=8192.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit_backlog_limit=8192.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit_backlog_limit=8192'The command should not return any output. Is it the case that audit backlog limit is not configured? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify privileges occur. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
low | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-80698-4: Record Any Attempts to Run chcon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-80700-8: Record Any Attempts to Run semanage | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "semanage" command with the following command: $ sudo auditctl -l | grep semanage -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-82280-9: Record Any Attempts to Run setfiles | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfiles" command with the following command: $ sudo auditctl -l | grep setfiles -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000463-GPOS-00207 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify security objects occur. | CCE-80701-6: Record Any Attempts to Run setsebool | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify security objects occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setsebool" command with the following command: $ sudo auditctl -l | grep setsebool -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -k privileged Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify security objects occur. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000465-GPOS-00209 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. | CCE-80698-4: Record Any Attempts to Run chcon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000465-GPOS-00209 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. | CCE-80700-8: Record Any Attempts to Run semanage | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "semanage" command with the following command: $ sudo auditctl -l | grep semanage -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000465-GPOS-00209 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. | CCE-82280-9: Record Any Attempts to Run setfiles | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfiles" command with the following command: $ sudo auditctl -l | grep setfiles -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000465-GPOS-00209 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. | CCE-80701-6: Record Any Attempts to Run setsebool | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setsebool" command with the following command: $ sudo auditctl -l | grep setsebool -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -k privileged Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-89446-9: Record Any Attempts to Run chacl | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chacl" command with the following command: $ sudo auditctl -l | grep chacl -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80736-2: Ensure auditd Collects Information on the Use of Privileged Commands - su | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "su" command with the following command: $ sudo auditctl -l | grep su -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -k privileged-su Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80737-0: Ensure auditd Collects Information on the Use of Privileged Commands - sudo | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "sudo" command with the following command: $ sudo auditctl -l | grep sudo -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-86027-0: Ensure auditd Collects Information on the Use of Privileged Commands - usermod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "usermod" command with the following command: $ sudo auditctl -l | grep usermod -a always,exit -F path=/usr/bin/usermod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-usermod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000466-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete privileges occur. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete privileges occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete privileges occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000467-GPOS-00211 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security levels occur. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security levels occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security levels occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000467-GPOS-00211 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security levels occur. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security levels occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security levels occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000467-GPOS-00211 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security levels occur. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security levels occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security levels occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000467-GPOS-00211 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security levels occur. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security levels occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security levels occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000467-GPOS-00211 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security levels occur. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security levels occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security levels occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80698-4: Record Any Attempts to Run chcon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000468-GPOS-00212 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful attempts to delete security objects occur. | CCE-80725-5: Ensure auditd Collects Information on the Use of Privileged Commands - chage | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful attempts to delete security objects occur. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chage" command with the following command: $ sudo auditctl -l | grep chage -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chage Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful attempts to delete security objects occur. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-80718-0: Record Attempts to Alter Logon and Logout Events - faillock | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w -p wa -k logins |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -w -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w -p wa -k logins |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-80719-8: Record Attempts to Alter Logon and Logout Events - lastlog | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/var/log/lastlog" with the following command: $ sudo auditctl -l | grep /var/log/lastlog -w /var/log/lastlog -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000470-GPOS-00214 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful logon attempts occur. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful logon attempts occur. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when successful/unsuccessful logon attempts occur. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80685-1: Record Events that Modify the System's Discretionary Access Controls - chmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chmod system call, run the following command:
$ sudo grep "chmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80687-7: Record Events that Modify the System's Discretionary Access Controls - fchmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmod system call, run the following command:
$ sudo grep "fchmod" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmod -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80688-5: Record Events that Modify the System's Discretionary Access Controls - fchmodat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchmodat system call, run the following command:
$ sudo grep "fchmodat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchmodat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80697-6: Record Events that Modify the System's Discretionary Access Controls - setxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
setxattr system call, run the following command:
$ sudo grep "setxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S setxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S setxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S setxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-89446-9: Record Any Attempts to Run chacl | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chacl" command with the following command: $ sudo auditctl -l | grep chacl -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect any execution attempt
of the chacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80698-4: Record Any Attempts to Run chcon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chcon" command with the following command: $ sudo auditctl -l | grep chcon -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect any execution attempt
of the chcon command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/chcon -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80700-8: Record Any Attempts to Run semanage | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "semanage" command with the following command: $ sudo auditctl -l | grep semanage -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect any execution attempt
of the semanage command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/semanage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-88437-9: Record Any Attempts to Run setfacl | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfacl" command with the following command: $ sudo auditctl -l | grep setfacl -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -k perm_mod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect any execution attempt
of the setfacl command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/setfacl -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-82280-9: Record Any Attempts to Run setfiles | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setfiles" command with the following command: $ sudo auditctl -l | grep setfiles -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix-update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect any execution attempt
of the setfiles command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setfiles -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80701-6: Record Any Attempts to Run setsebool | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "setsebool" command with the following command: $ sudo auditctl -l | grep setsebool -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -k privileged Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect any execution attempt
of the setsebool command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/sbin/setsebool -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80703-2: Ensure auditd Collects File Deletion Events by User - rename | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rename system call, run the following command:
$ sudo grep "rename" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rename -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80704-0: Ensure auditd Collects File Deletion Events by User - renameat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
renameat system call, run the following command:
$ sudo grep "renameat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S renameat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80705-7: Ensure auditd Collects File Deletion Events by User - rmdir | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
rmdir system call, run the following command:
$ sudo grep "rmdir" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S rmdir -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80706-5: Ensure auditd Collects File Deletion Events by User - unlink | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlink system call, run the following command:
$ sudo grep "unlink" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlink -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80707-3: Ensure auditd Collects File Deletion Events by User - unlinkat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
unlinkat system call, run the following command:
$ sudo grep "unlinkat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect file deletion events
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=deleteIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S unlinkat -F auid>=1000 -F auid!=unset -F key=delete |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80711-5: Ensure auditd Collects Information on Kernel Module Unloading - delete_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
delete_module system call, run the following command:
$ sudo grep "delete_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80712-3: Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
finit_module system call, run the following command:
$ sudo grep "finit_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80713-1: Ensure auditd Collects Information on Kernel Module Loading - init_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
init_module system call, run the following command:
$ sudo grep "init_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80719-8: Record Attempts to Alter Logon and Logout Events - lastlog | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/var/log/lastlog" with the following command: $ sudo auditctl -l | grep /var/log/lastlog -w /var/log/lastlog -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80722-2: Ensure auditd Collects Information on Exporting to Media (successful) | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
mount system call, run the following command:
$ sudo grep "mount" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect media exportation
events for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d, setting ARCH to either b32 or b64 as
appropriate for your system:
-a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=exportIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S mount -F auid>=1000 -F auid!=unset -F key=export |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80725-5: Ensure auditd Collects Information on the Use of Privileged Commands - chage | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chage" command with the following command: $ sudo auditctl -l | grep chage -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chage Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chage -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80726-3: Ensure auditd Collects Information on the Use of Privileged Commands - chsh | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "chsh" command with the following command: $ sudo auditctl -l | grep chsh -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -k privileged-chsh Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/chsh -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80727-1: Ensure auditd Collects Information on the Use of Privileged Commands - crontab | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "crontab" command with the following command: $ sudo auditctl -l | grep crontab -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -k privileged-crontab Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/crontab -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80728-9: Ensure auditd Collects Information on the Use of Privileged Commands - gpasswd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "gpasswd" command with the following command: $ sudo auditctl -l | grep gpasswd -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-gpasswd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/gpasswd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-89455-0: Ensure auditd Collects Information on the Use of Privileged Commands - kmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "kmod" command with the following command: $ sudo auditctl -l | grep kmod -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-kmod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80989-7: Ensure auditd Collects Information on the Use of Privileged Commands - mount | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "mount" command with the following command: $ sudo auditctl -l | grep mount -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-mount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/mount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80729-7: Ensure auditd Collects Information on the Use of Privileged Commands - newgrp | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "newgrp" command with the following command: $ sudo auditctl -l | grep newgrp -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -k privileged-newgrp Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80730-5: Ensure auditd Collects Information on the Use of Privileged Commands - pam_timestamp_check | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "pam_timestamp_check" command with the following command: $ sudo auditctl -l | grep pam_timestamp_check -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -k privileged-pam_timestamp_check Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/pam_timestamp_check -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80731-3: Ensure auditd Collects Information on the Use of Privileged Commands - passwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "passwd" command with the following command: $ sudo auditctl -l | grep passwd -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-passwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/passwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80732-1: Ensure auditd Collects Information on the Use of Privileged Commands - postdrop | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postdrop" command with the following command: $ sudo auditctl -l | grep postdrop -a always,exit -F path=/usr/bin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postdrop Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postdrop -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80733-9: Ensure auditd Collects Information on the Use of Privileged Commands - postqueue | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "postqueue" command with the following command: $ sudo auditctl -l | grep postqueue -a always,exit -F path=/usr/bin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -k privileged-postqueue Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/postqueue -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-85944-7: Record Any Attempts to Run ssh-agent | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-agent" command with the following command: $ sudo auditctl -l | grep ssh-agent -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect any execution attempt
of the ssh-agent command for all users and root. If the auditd
daemon is configured to use the augenrules program to read audit rules
during daemon startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agentIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F path=/usr/bin/ssh-agent -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-agent |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80735-4: Ensure auditd Collects Information on the Use of Privileged Commands - ssh-keysign | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "ssh-keysign" command with the following command: $ sudo auditctl -l | grep ssh-keysign -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -k privileged-ssh-keysign Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/libexec/openssh/ssh-keysign -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80736-2: Ensure auditd Collects Information on the Use of Privileged Commands - su | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "su" command with the following command: $ sudo auditctl -l | grep su -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -k privileged-su Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80737-0: Ensure auditd Collects Information on the Use of Privileged Commands - sudo | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "sudo" command with the following command: $ sudo auditctl -l | grep sudo -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80739-6: Ensure auditd Collects Information on the Use of Privileged Commands - umount | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "umount" command with the following command: $ sudo auditctl -l | grep umount -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -k privileged-umount Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/umount -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80740-4: Ensure auditd Collects Information on the Use of Privileged Commands - unix_chkpwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_chkpwd" command with the following command: $ sudo auditctl -l | grep unix_chkpwd -a always,exit -F path=/usr/bin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_chkpwd Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_chkpwd -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-89480-8: Ensure auditd Collects Information on the Use of Privileged Commands - unix_update | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "unix_update" command with the following command: $ sudo auditctl -l | grep unix_update -a always,exit -F path=/usr/bin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -k privileged-unix_update Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/unix_update -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80741-2: Ensure auditd Collects Information on the Use of Privileged Commands - userhelper | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "userhelper" command with the following command: $ sudo auditctl -l | grep userhelper -a always,exit -F path=/usr/bin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -k privileged-userhelper Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/userhelper -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-86027-0: Ensure auditd Collects Information on the Use of Privileged Commands - usermod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "usermod" command with the following command: $ sudo auditctl -l | grep usermod -a always,exit -F path=/usr/bin/usermod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-usermod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/sbin/usermod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80751-1: Record Unsuccessful Access Attempts to Files - creat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the creat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r creat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep creat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S creat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S creat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80752-9: Record Unsuccessful Access Attempts to Files - ftruncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the ftruncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r ftruncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep ftruncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80753-7: Record Unsuccessful Access Attempts to Files - open | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80755-2: Record Unsuccessful Access Attempts to Files - open_by_handle_at | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the open_by_handle_at system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r open_by_handle_at /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep open_by_handle_at /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S open_by_handle_at,truncate,ftruncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80754-5: Record Unsuccessful Access Attempts to Files - openat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the openat system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r openat /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep openat /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S openat -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S openat -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80756-0: Record Unsuccessful Access Attempts to Files - truncate | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates an audit record for unsuccessful attempts to use the truncate system call. If the auditd daemon is configured to use the "augenrules" program to to read audit rules during daemon startup (the default), run the following command: $ sudo grep -r truncate /etc/audit/rules.d If the auditd daemon is configured to use the "auditctl" utility to read audit rules during daemon startup, run the following command: $ sudo grep truncate /etc/audit/audit.rules The output should be the following: -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -k access Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | At a minimum, the audit system should collect unauthorized file
accesses for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following lines to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b32 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=accessIf the system is 64 bit then also add the following lines: -a always,exit -F arch=b64 -S truncate -F exit=-EACCES -F auid>=1000 -F auid!=unset -F key=access -a always,exit -F arch=b64 -S truncate -F exit=-EPERM -F auid>=1000 -F auid!=unset -F key=access |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to generate audit records for privileged activities or other system-level access. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for privileged activities or other system-level access. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-82168-6: Log USBGuard daemon audit events using Linux Audit | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To configure USBGuard daemon to log via Linux Audit (as opposed directly to a file), AuditBackend option in /etc/usbguard/usbguard-daemon.conf needs to be set to LinuxAudit. | Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | To verify that Linux Audit logging is enabled for the USBGuard daemon,
run the following command:
$ sudo grep AuditBackend /etc/usbguard/usbguard-daemon.confThe output should be AuditBackend=LinuxAuditIs it the case that AuditBackend is not set to LinuxAudit? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | To configure USBGuard daemon to log via Linux Audit (as opposed directly to a file), AuditBackend option in /etc/usbguard/usbguard-daemon.conf needs to be set to LinuxAudit. | low | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80825-3: Enable Auditing for Processes Which Start Prior to the Audit Daemon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit=1'The command should not return any output. Is it the case that auditing is not enabled at boot time? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
low | |||
| CCI-000172 | SRG-OS-000471-GPOS-00215 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for privileged activities or other system-level access. | CCE-80943-4: Extend Audit Backlog Limit for the Audit Daemon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
Applicable - Configurable | Verify the operating system generates audit records for privileged activities or other system-level access. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit_backlog_limit=8192,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit_backlog_limit=8192.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit_backlog_limit=8192.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit_backlog_limit=8192'The command should not return any output. Is it the case that audit backlog limit is not configured? |
Configure the operating system to generate audit records for privileged activities or other system-level access. | To improve the kernel capacity to queue all log events, even those which occurred
prior to the audit daemon, add the argument audit_backlog_limit=8192 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit_backlog_limit=8192 is added as a kernel command line
argument to newly installed kernels, add audit_backlog_limit=8192 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit_backlog_limit=8192 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit_backlog_limit=8192" |
low | |||
| CCI-000172 | SRG-OS-000471-GPOS-00216 | TBD - Assigned by DISA after STIG release | The audit system must be configured to audit the loading and unloading of dynamic kernel modules. | CCE-80711-5: Ensure auditd Collects Information on Kernel Module Unloading - delete_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the audit system is configured to audit the loading and unloading of dynamic kernel modules. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
delete_module system call, run the following command:
$ sudo grep "delete_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the audit system to audit the loading and unloading of dynamic kernel modules. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00216 | TBD - Assigned by DISA after STIG release | The audit system must be configured to audit the loading and unloading of dynamic kernel modules. | CCE-80712-3: Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
Applicable - Configurable | Verify the audit system is configured to audit the loading and unloading of dynamic kernel modules. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
finit_module system call, run the following command:
$ sudo grep "finit_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the audit system to audit the loading and unloading of dynamic kernel modules. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00216 | TBD - Assigned by DISA after STIG release | The audit system must be configured to audit the loading and unloading of dynamic kernel modules. | CCE-80713-1: Ensure auditd Collects Information on Kernel Module Loading - init_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the audit system is configured to audit the loading and unloading of dynamic kernel modules. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
init_module system call, run the following command:
$ sudo grep "init_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the audit system to audit the loading and unloading of dynamic kernel modules. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000172 | SRG-OS-000471-GPOS-00216 | TBD - Assigned by DISA after STIG release | The audit system must be configured to audit the loading and unloading of dynamic kernel modules. | CCE-89455-0: Ensure auditd Collects Information on the Use of Privileged Commands - kmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the audit system is configured to audit the loading and unloading of dynamic kernel modules. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "kmod" command with the following command: $ sudo auditctl -l | grep kmod -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-kmod Is it the case that the command does not return a line, or the line is commented out? | Configure the audit system to audit the loading and unloading of dynamic kernel modules. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| V-56613 | SRG-OS-000472-GPOS-00217 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records showing starting and ending time for user access to the system. | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | |||||||||||
| CCI-000172 | SRG-OS-000473-GPOS-00218 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when concurrent logons to the same account occur from different sources. | CCE-80718-0: Record Attempts to Alter Logon and Logout Events - faillock | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w -p wa -k logins |
Applicable - Configurable | Verify the operating system generates audit records when concurrent logons to the same account occur from different sources. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -w -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when concurrent logons to the same account occur from different sources. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w -p wa -k logins |
medium | |||
| CCI-000172 | SRG-OS-000473-GPOS-00218 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when concurrent logons to the same account occur from different sources. | CCE-80719-8: Record Attempts to Alter Logon and Logout Events - lastlog | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
Applicable - Configurable | Verify the operating system generates audit records when concurrent logons to the same account occur from different sources. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/var/log/lastlog" with the following command: $ sudo auditctl -l | grep /var/log/lastlog -w /var/log/lastlog -p wa -k logins Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records when concurrent logons to the same account occur from different sources. | The audit system already collects login information for all users
and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d in order to watch for attempted manual
edits of files involved in storing logon events:
-w /var/log/lastlog -p wa -k loginsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to watch for unattempted manual edits of files involved in storing logon events: -w /var/log/lastlog -p wa -k logins |
medium | |||
| CCI-000172 | SRG-OS-000473-GPOS-00218 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when concurrent logons to the same account occur from different sources. | CCE-80825-3: Enable Auditing for Processes Which Start Prior to the Audit Daemon | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
Applicable - Configurable | Verify the operating system generates audit records when concurrent logons to the same account occur from different sources. If it does not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes audit=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*audit=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*audit=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'audit=1'The command should not return any output. Is it the case that auditing is not enabled at boot time? |
Configure the operating system to generate audit records when concurrent logons to the same account occur from different sources. | To ensure all processes can be audited, even those which start
prior to the audit daemon, add the argument audit=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that audit=1 is added as a kernel command line
argument to newly installed kernels, add audit=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... audit=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="audit=1" |
low | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80686-9: Record Events that Modify the System's Discretionary Access Controls - chown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
chown system call, run the following command:
$ sudo grep "chown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured to
use the augenrules program to read audit rules during daemon startup
(the default), add the following line to a file with suffix .rules in
the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S chown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S chown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80689-3: Record Events that Modify the System's Discretionary Access Controls - fchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchown system call, run the following command:
$ sudo grep "fchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80690-1: Record Events that Modify the System's Discretionary Access Controls - fchownat | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fchownat system call, run the following command:
$ sudo grep "fchownat" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80691-9: Record Events that Modify the System's Discretionary Access Controls - fremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fremovexattr system call, run the following command:
$ sudo grep "fremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80692-7: Record Events that Modify the System's Discretionary Access Controls - fsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
fsetxattr system call, run the following command:
$ sudo grep "fsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S fsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S fsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S fsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80693-5: Record Events that Modify the System's Discretionary Access Controls - lchown | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lchown system call, run the following command:
$ sudo grep "lchown" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lchown -F auid>=1000 -F auid!=unset -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80694-3: Record Events that Modify the System's Discretionary Access Controls - lremovexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lremovexattr system call, run the following command:
$ sudo grep "lremovexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lremovexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lremovexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lremovexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80695-0: Record Events that Modify the System's Discretionary Access Controls - lsetxattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
lsetxattr system call, run the following command:
$ sudo grep "lsetxattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root. If the auditd daemon is configured
to use the augenrules program to read audit rules during daemon
startup (the default), add the following line to a file with suffix
.rules in the directory /etc/audit/rules.d:
-a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_modIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S lsetxattr -F auid=0 -F key=perm_modIf the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S lsetxattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S lsetxattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000474-GPOS-00219 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records when successful/unsuccessful accesses to objects occur. | CCE-80696-8: Record Events that Modify the System's Discretionary Access Controls - removexattr | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
Applicable - Configurable | Verify the operating system generates audit records when successful/unsuccessful accesses to objects occur. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
removexattr system call, run the following command:
$ sudo grep "removexattr" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records when successful/unsuccessful accesses to objects occur. | At a minimum, the audit system should collect file permission
changes for all users and root.
If the auditd daemon is configured to use the augenrules program to read audit rules during daemon startup (the default), add the following line to a file with suffix .rules in the directory /etc/audit/rules.d: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -a always,exit -F arch=b32 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b32 -S removexattr -F auid=0 -F key=perm_mod If the system is 64 bit then also add the following line: -a always,exit -F arch=b64 -S removexattr -F auid>=1000 -F auid!=unset -F key=perm_mod -a always,exit -F arch=b64 -S removexattr -F auid=0 -F key=perm_mod |
medium | |||
| CCI-000172 | SRG-OS-000475-GPOS-00220 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all direct access to the information system. | CCE-90783-2: Configure immutable Audit login UIDs | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
Applicable - Configurable | Verify the operating system generates audit records for all direct access to the information system. If it does not, this is a finding. | To determine if the system is configured to make login UIDs immutable, run
one of the following commands.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), run the following:
sudo grep immutable /etc/audit/rules.d/*.rulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, run the following command: sudo grep immutable /etc/audit/audit.rulesThe following line should be returned: --loginuid-immutableIs it the case that the system is not configured to make login UIDs immutable? |
Configure the operating system to generate audit records for all direct access to the information system. | Configure kernel to prevent modification of login UIDs once they are set.
Changing login UIDs while this configuration is enforced requires special capabilities which
are not available to unprivileged users.
If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following line to a file with suffix .rules in the
directory /etc/audit/rules.d in order to make login UIDs
immutable:
--loginuid-immutableIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file in order to make login UIDs immutable: --loginuid-immutable |
medium | |||
| CCI-000172 | SRG-OS-000475-GPOS-00220 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all direct access to the information system. | CCE-81043-2: Ensure the audit Subsystem is Installed | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | The audit package should be installed. | Applicable - Configurable | Verify the operating system generates audit records for all direct access to the information system. If it does not, this is a finding. | Run the following command to determine if the audit package is installed: $ rpm -q auditIs it the case that the audit package is not installed? |
Configure the operating system to generate audit records for all direct access to the information system. | The audit package should be installed. | medium | |||
| CCI-000172 | SRG-OS-000475-GPOS-00220 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all direct access to the information system. | CCE-80872-5: Enable auditd Service | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
Applicable - Configurable | Verify the operating system generates audit records for all direct access to the information system. If it does not, this is a finding. |
Run the following command to determine the current status of the
auditd service:
$ sudo systemctl is-active auditdIf the service is running, it should return the following: activeIs it the case that the auditd service is not running? |
Configure the operating system to generate audit records for all direct access to the information system. | The auditd service is an essential userspace component of
the Linux Auditing System, as it is responsible for writing audit records to
disk.
The auditd service can be enabled with the following command:
$ sudo systemctl enable auditd.service |
medium | |||
| CCI-000172 | SRG-OS-000476-GPOS-00221 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all account creations, modifications, disabling, and termination events. | CCE-90175-1: Ensure auditd Collects System Administrator Actions - /etc/sudoers | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records for all account creations, modifications, disabling, and termination events. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers" with the following command: $ sudo auditctl -l | grep /etc/sudoers -w /etc/sudoers -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for all account creations, modifications, disabling, and termination events. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000476-GPOS-00221 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all account creations, modifications, disabling, and termination events. | CCE-89497-2: Ensure auditd Collects System Administrator Actions - /etc/sudoers.d/ | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
Applicable - Configurable | Verify the operating system generates audit records for all account creations, modifications, disabling, and termination events. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/sudoers.d/" with the following command: $ sudo auditctl -l | grep/etc/sudoers.d -w /etc/sudoers.d/ -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for all account creations, modifications, disabling, and termination events. | At a minimum, the audit system should collect administrator actions
for all users and root. If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the default),
add the following line to a file with suffix .rules in the directory
/etc/audit/rules.d:
-w /etc/sudoers.d/ -p wa -k actionsIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following line to /etc/audit/audit.rules file: -w /etc/sudoers.d/ -p wa -k actions |
medium | |||
| CCI-000172 | SRG-OS-000476-GPOS-00221 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all account creations, modifications, disabling, and termination events. | CCE-80758-6: Record Events that Modify User/Group Information - /etc/group | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for all account creations, modifications, disabling, and termination events. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/group" with the following command: $ sudo auditctl -l | grep -E '(/etc/group)' -w /etc/group -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for all account creations, modifications, disabling, and termination events. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/group -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/group -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000476-GPOS-00221 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all account creations, modifications, disabling, and termination events. | CCE-80759-4: Record Events that Modify User/Group Information - /etc/gshadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for all account creations, modifications, disabling, and termination events. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/gshadow" with the following command: $ sudo auditctl -l | grep -E '(/etc/gshadow)' -w /etc/gshadow -p wa -k identity If the command does not return a line, or the line is commented out, this is a finding. Is it the case that the system is not configured to audit account changes? | Configure the operating system to generate audit records for all account creations, modifications, disabling, and termination events. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/gshadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/gshadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000476-GPOS-00221 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all account creations, modifications, disabling, and termination events. | CCE-80760-2: Record Events that Modify User/Group Information - /etc/security/opasswd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for all account creations, modifications, disabling, and termination events. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/security/opasswd" with the following command: $ sudo auditctl -l | grep -E '(/etc/security/opasswd)' -w /etc/security/opasswd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for all account creations, modifications, disabling, and termination events. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/security/opasswd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000476-GPOS-00221 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all account creations, modifications, disabling, and termination events. | CCE-80761-0: Record Events that Modify User/Group Information - /etc/passwd | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for all account creations, modifications, disabling, and termination events. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd" with the following command: $ sudo auditctl -l | grep -E '(/etc/passwd)' -w /etc/passwd -p wa -k identity Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for all account creations, modifications, disabling, and termination events. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/passwd -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/passwd -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000476-GPOS-00221 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all account creations, modifications, disabling, and termination events. | CCE-80762-8: Record Events that Modify User/Group Information - /etc/shadow | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
Applicable - Configurable | Verify the operating system generates audit records for all account creations, modifications, disabling, and termination events. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/passwd with the following command: $ sudo auditctl -l | grep -E '(/etc/shadow)' -w /etc/shadow -p wa -k identity Is it the case that command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for all account creations, modifications, disabling, and termination events. | If the auditd daemon is configured to use the
augenrules program to read audit rules during daemon startup (the
default), add the following lines to a file with suffix .rules in the
directory /etc/audit/rules.d, in order to capture events that modify
account changes:
-w /etc/shadow -p wa -k audit_rules_usergroup_modification If the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file, in order to capture events that modify account changes: -w /etc/shadow -p wa -k audit_rules_usergroup_modification |
medium | |||
| CCI-000172 | SRG-OS-000477-GPOS-00222 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations. | CCE-80711-5: Ensure auditd Collects Information on Kernel Module Unloading - delete_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system generates audit records for all kernel module load, unload, and restart actions, and also for all program initiations. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
delete_module system call, run the following command:
$ sudo grep "delete_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations. | To capture kernel module unloading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S delete_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000172 | SRG-OS-000477-GPOS-00222 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations. | CCE-80712-3: Ensure auditd Collects Information on Kernel Module Loading and Unloading - finit_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
Applicable - Configurable | Verify the operating system generates audit records for all kernel module load, unload, and restart actions, and also for all program initiations. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
finit_module system call, run the following command:
$ sudo grep "finit_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations. | If the auditd daemon is configured to use the augenrules program
to read audit rules during daemon startup (the default), add the following lines to a file
with suffix .rules in the directory /etc/audit/rules.d to capture kernel module
loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system:
-a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modulesIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add the following lines to /etc/audit/audit.rules file in order to capture kernel module loading and unloading events, setting ARCH to either b32 or b64 as appropriate for your system: -a always,exit -F arch=ARCH -S finit_module -F auid>=1000 -F auid!=unset -F key=modules |
medium | |||
| CCI-000172 | SRG-OS-000477-GPOS-00222 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations. | CCE-80713-1: Ensure auditd Collects Information on Kernel Module Loading - init_module | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
Applicable - Configurable | Verify the operating system generates audit records for all kernel module load, unload, and restart actions, and also for all program initiations. If it does not, this is a finding. | To determine if the system is configured to audit calls to the
init_module system call, run the following command:
$ sudo grep "init_module" /etc/audit/audit.*If the system is configured to audit this activity, it will return a line. Is it the case that no line is returned? |
Configure the operating system to generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations. | To capture kernel module loading events, use following line, setting ARCH to
either b32 for 32-bit system, or having two lines for both b32 and b64 in case your system is 64-bit:
-a always,exit -F arch=ARCH -S init_module -F auid>=1000 -F auid!=unset -F key=modulesPlace to add the line depends on a way auditd daemon is configured. If it is configured to use the augenrules program (the default), add the line to a file with suffix .rules in the directory /etc/audit/rules.d. If the auditd daemon is configured to use the auditctl utility, add the line to file /etc/audit/audit.rules. |
medium | |||
| CCI-000172 | SRG-OS-000477-GPOS-00222 | TBD - Assigned by DISA after STIG release | The operating system must generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations. | CCE-89455-0: Ensure auditd Collects Information on the Use of Privileged Commands - kmod | Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system generates audit records for all kernel module load, unload, and restart actions, and also for all program initiations. If it does not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "kmod" command with the following command: $ sudo auditctl -l | grep kmod -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -k privileged-kmod Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to generate audit records for all kernel module load, unload, and restart actions, and also for all program initiations. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/kmod -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-002450 | SRG-OS-000478-GPOS-00223 | TBD - Assigned by DISA after STIG release | The operating system must implement NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | CCE-82155-3: Enable Dracut FIPS Module | Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated. | To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable FIPS, the system requires that the fips module is added in dracut configuration. Check if /etc/dracut.conf.d/40-fips.conf contain add_dracutmodules+=" fips " |
Applicable - Configurable | Verify the operating system implements NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. If it does not, this is a finding. | To verify that the Dracut FIPS module is enabled, run the following command: grep "add_dracutmodules" /etc/dracut.conf.d/40-fips.conf The output should look like this: add_dracutmodules+=" fips " Is it the case that the Dracut FIPS module is not enabled? | Configure the operating system to implement NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable FIPS, the system requires that the fips module is added in dracut configuration. Check if /etc/dracut.conf.d/40-fips.conf contain add_dracutmodules+=" fips " |
high | |||
| CCI-002450 | SRG-OS-000478-GPOS-00223 | TBD - Assigned by DISA after STIG release | The operating system must implement NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | CCE-80942-6: Enable FIPS Mode | Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated. |
To enable FIPS mode, run the following command:
fips-mode-setup --enable The fips-mode-setup command will configure the system in FIPS mode by automatically configuring the following:
|
Applicable - Configurable | Verify the operating system implements NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. If it does not, this is a finding. | To verify that FIPS mode is enabled properly, run the following command:
fips-mode-setup --checkThe output should contain the following: FIPS mode is enabled.To verify that the cryptographic policy has been configured correctly, run the following command: $ update-crypto-policies --showThe output should return . Is it the case that FIPS mode is not enabled? |
Configure the operating system to implement NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. |
To enable FIPS mode, run the following command:
fips-mode-setup --enable The fips-mode-setup command will configure the system in FIPS mode by automatically configuring the following:
|
high | |||
| CCI-002450 | SRG-OS-000478-GPOS-00223 | TBD - Assigned by DISA after STIG release | The operating system must implement NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | CCE-84027-2: Set kernel parameter 'crypto.fips_enabled' to 1 | Use of weak or untested encryption algorithms undermines the purposes of utilizing encryption to protect data. The operating system must implement cryptographic modules adhering to the higher standards approved by the federal government since this provides assurance they have been tested and validated. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
Applicable - Configurable | Verify the operating system implements NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. If it does not, this is a finding. | To verify that kernel parameter 'crypto.fips_enabled' is set properly, run the following command:
sysctl crypto.fips_enabledThe output should contain the following: crypto.fips_enabled = 1Is it the case that crypto.fips_enabled is not 1? |
Configure the operating system to implement NIST FIPS-validated cryptography for the following: to provision digital signatures, to generate cryptographic hashes, and to protect unclassified information requiring confidentiality and cryptographic protection in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. | System running in FIPS mode is indicated by kernel parameter
'crypto.fips_enabled'. This parameter should be set to 1 in FIPS mode.
To enable FIPS mode, run the following command:
fips-mode-setup --enableTo enable strict FIPS compliance, the fips=1 kernel option needs to be added to the kernel boot parameters during system installation so key generation is done with FIPS-approved algorithms and continuous monitoring tests in place. |
high | |||
| CCI-001851 | SRG-OS-000479-GPOS-00224 | TBD - Assigned by DISA after STIG release | The operating system must, at a minimum, off-load audit data from interconnected systems in real time and off-load audit data from standalone systems weekly. | CCE-82897-0: Set type of computer node name logging in audit logs | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | To configure Audit daemon to use a unique identifier as computer node name in the audit events, set name_format to in /etc/audit/auditd.conf. | Applicable - Configurable | Verify the operating system, at a minimum, off-loads interconnected systems in real time and off-loads standalone systems weekly. If it does not, this is a finding. | To verify that Audit Daemon is configured to record the computer node
name in the audit events, run the following command:
$ sudo grep name_format /etc/audit/auditd.confThe output should return the following: name_format =Is it the case that name_format isn't set to ? |
Configure the operating system to, at a minimum, off-load interconnected systems in real time and off-load standalone systems weekly. | To configure Audit daemon to use a unique identifier as computer node name in the audit events, set name_format to in /etc/audit/auditd.conf. | medium | |||
| CCI-001851 | SRG-OS-000479-GPOS-00224 | TBD - Assigned by DISA after STIG release | The operating system must, at a minimum, off-load audit data from interconnected systems in real time and off-load audit data from standalone systems weekly. | CCE-85889-4: Appropriate Action Must be Setup When the Internal Audit Event Queue is Full | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | The audit system should have an action setup in the event the internal event queue becomes full. To setup an overflow action edit /etc/audit/auditd.conf. Set overflow_action to one of the following values: syslog, single, halt. | Applicable - Configurable | Verify the operating system, at a minimum, off-loads interconnected systems in real time and off-loads standalone systems weekly. If it does not, this is a finding. | Verify the audit system is configured to take an appropriate action when the internal event queue is full:
$ sudo grep -i overflow_action /etc/audit/auditd.confThe output should contain overflow_action = syslog If the value of the "overflow_action" option is not set to syslog, single, halt or the line is commented out, ask the System Administrator to indicate how the audit logs are off-loaded to a different system or media. Is it the case that auditd overflow action is not set correctly? |
Configure the operating system to, at a minimum, off-load interconnected systems in real time and off-load standalone systems weekly. | The audit system should have an action setup in the event the internal event queue becomes full. To setup an overflow action edit /etc/audit/auditd.conf. Set overflow_action to one of the following values: syslog, single, halt. | medium | |||
| CCI-001851 | SRG-OS-000479-GPOS-00224 | TBD - Assigned by DISA after STIG release | The operating system must, at a minimum, off-load audit data from interconnected systems in real time and off-load audit data from standalone systems weekly. | CCE-80847-7: Ensure rsyslog is Installed | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | Rsyslog is installed by default. The rsyslog package can be installed with the following command: $ sudo yum install rsyslog |
Applicable - Configurable | Verify the operating system, at a minimum, off-loads interconnected systems in real time and off-loads standalone systems weekly. If it does not, this is a finding. | Run the following command to determine if the rsyslog package is installed: $ rpm -q rsyslogIs it the case that the package is not installed? |
Configure the operating system to, at a minimum, off-load interconnected systems in real time and off-load standalone systems weekly. | Rsyslog is installed by default. The rsyslog package can be installed with the following command: $ sudo yum install rsyslog |
medium | |||
| CCI-001851 | SRG-OS-000479-GPOS-00224 | TBD - Assigned by DISA after STIG release | The operating system must, at a minimum, off-load audit data from interconnected systems in real time and off-load audit data from standalone systems weekly. | CCE-86339-9: Ensure Rsyslog Authenticates Off-Loaded Audit Records | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs the remote system must be authenticated.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$ActionSendStreamDriverAuthMode x509/nameAlternatively, use the RainerScript syntax: action(type="omfwd" Target="some.example.com" StreamDriverAuthMode="x509/name") |
Applicable - Configurable | Verify the operating system, at a minimum, off-loads interconnected systems in real time and off-loads standalone systems weekly. If it does not, this is a finding. | Verify the operating system authenticates the remote logging server for off-loading audit logs with the following command:
$ sudo grep -i '$ActionSendStreamDriverAuthMode' /etc/rsyslog.conf /etc/rsyslog.d/*.confThe output should be $/etc/rsyslog.conf:$ActionSendStreamDriverAuthMode x509/nameIs it the case that $ActionSendStreamDriverAuthMode in /etc/rsyslog.conf is not set to x509/name? |
Configure the operating system to, at a minimum, off-load interconnected systems in real time and off-load standalone systems weekly. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs the remote system must be authenticated.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$ActionSendStreamDriverAuthMode x509/nameAlternatively, use the RainerScript syntax: action(type="omfwd" Target="some.example.com" StreamDriverAuthMode="x509/name") |
medium | |||
| CCI-001851 | SRG-OS-000479-GPOS-00224 | TBD - Assigned by DISA after STIG release | The operating system must, at a minimum, off-load audit data from interconnected systems in real time and off-load audit data from standalone systems weekly. | CCE-86098-1: Ensure Rsyslog Encrypts Off-Loaded Audit Records | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs off a encrpytion system must be used.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$ActionSendStreamDriverMode 1Alternatively, use the RainerScript syntax: action(type="omfwd" ... StreamDriverMode="1") |
Applicable - Configurable | Verify the operating system, at a minimum, off-loads interconnected systems in real time and off-loads standalone systems weekly. If it does not, this is a finding. | Verify the operating system encrypts audit records off-loaded onto a different system
or media from the system being audited with the following commands:
$ sudo grep -i '$ActionSendStreamDriverMode' /etc/rsyslog.conf /etc/rsyslog.d/*.confThe output should be: /etc/rsyslog.conf:$ActionSendStreamDriverMode 1Is it the case that rsyslogd ActionSendStreamDriverMode is not set to 1? |
Configure the operating system to, at a minimum, off-load interconnected systems in real time and off-load standalone systems weekly. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs off a encrpytion system must be used.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$ActionSendStreamDriverMode 1Alternatively, use the RainerScript syntax: action(type="omfwd" ... StreamDriverMode="1") |
medium | |||
| CCI-001851 | SRG-OS-000479-GPOS-00224 | TBD - Assigned by DISA after STIG release | The operating system must, at a minimum, off-load audit data from interconnected systems in real time and off-load audit data from standalone systems weekly. | CCE-85992-6: Ensure Rsyslog Encrypts Off-Loaded Audit Records | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs off an encryption system must be used.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$DefaultNetstreamDriver gtlsAlternatively, use the RainerScript syntax: global(DefaultNetstreamDriver="gtls") |
Applicable - Configurable | Verify the operating system, at a minimum, off-loads interconnected systems in real time and off-loads standalone systems weekly. If it does not, this is a finding. | Verify the operating system encrypts audit records off-loaded onto a different system
or media from the system being audited with the following commands:
$ sudo grep -i '$DefaultNetstreamDriver' /etc/rsyslog.conf /etc/rsyslog.d/*.confThe output should be: /etc/rsyslog.conf:$DefaultNetstreamDriver gtlsIs it the case that rsyslogd DefaultNetstreamDriver not set to gtls? |
Configure the operating system to, at a minimum, off-load interconnected systems in real time and off-load standalone systems weekly. | Rsyslogd is a system utility providing support for message logging. Support
for both internet and UNIX domain sockets enables this utility to support both local
and remote logging. Couple this utility with gnutls (which is a secure communications
library implementing the SSL, TLS and DTLS protocols), and you have a method to securely
encrypt and off-load auditing.
When using rsyslogd to off-load logs off an encryption system must be used.
Set the following configuration option in /etc/rsyslog.conf or in a file in /etc/rsyslog.d (using legacy syntax):
$DefaultNetstreamDriver gtlsAlternatively, use the RainerScript syntax: global(DefaultNetstreamDriver="gtls") |
medium | |||
| CCI-001851 | SRG-OS-000479-GPOS-00224 | TBD - Assigned by DISA after STIG release | The operating system must, at a minimum, off-load audit data from interconnected systems in real time and off-load audit data from standalone systems weekly. | CCE-80863-4: Ensure Logs Sent To Remote Host | Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity. | To configure rsyslog to send logs to a remote log server,
open /etc/rsyslog.conf and read and understand the last section of the file,
which describes the multiple directives necessary to activate remote
logging.
Along with these other directives, the system can be configured
to forward its logs to a particular log server by
adding or correcting one of the following lines,
substituting appropriately.
The choice of protocol depends on the environment of the system;
although TCP and RELP provide more reliable message delivery,
they may not be supported in all environments.
To use UDP for log message delivery: *.* @ To use TCP for log message delivery: *.* @@ To use RELP for log message delivery: *.* :omrelp: There must be a resolvable DNS CNAME or Alias record set to "" for logs to be sent correctly to the centralized logging utility. |
Applicable - Configurable | Verify the operating system, at a minimum, off-loads interconnected systems in real time and off-loads standalone systems weekly. If it does not, this is a finding. | To ensure logs are sent to a remote host, examine the file
/etc/rsyslog.conf.
If using UDP, a line similar to the following should be present:
*.* @If using TCP, a line similar to the following should be present: *.* @@If using RELP, a line similar to the following should be present: *.* :omrelp:Is it the case that no evidence that the audit logs are being off-loaded to another system or media? |
Configure the operating system to, at a minimum, off-load interconnected systems in real time and off-load standalone systems weekly. | To configure rsyslog to send logs to a remote log server,
open /etc/rsyslog.conf and read and understand the last section of the file,
which describes the multiple directives necessary to activate remote
logging.
Along with these other directives, the system can be configured
to forward its logs to a particular log server by
adding or correcting one of the following lines,
substituting appropriately.
The choice of protocol depends on the environment of the system;
although TCP and RELP provide more reliable message delivery,
they may not be supported in all environments.
To use UDP for log message delivery: *.* @ To use TCP for log message delivery: *.* @@ To use RELP for log message delivery: *.* :omrelp: There must be a resolvable DNS CNAME or Alias record set to "" for logs to be sent correctly to the centralized logging utility. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00225 | TBD - Assigned by DISA after STIG release | The operating system must prevent the use of dictionary words for passwords. | CCE-86233-4: Ensure PAM Enforces Password Requirements - Prevent the Use of Dictionary Words | If the operating system allows the user to select passwords based on dictionary words, then this increases the chances of password compromise by increasing the opportunity for successful guesses and brute-force attacks. | The pam_pwquality module's dictcheck check if passwords contains dictionary words. When dictcheck is set to 1 passwords will be checked for dictionary words. | Applicable - Configurable | Verify the operating system prevents the use of dictionary words for passwords. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 prevents the use of dictionary words for passwords with the following command:
$ sudo grep dictcheck /etc/security/pwquality.conf /etc/pwquality.conf.d/*.conf /etc/security/pwquality.conf:dictcheck=1Is it the case that "dictcheck" does not have a value other than "0", or is commented out? |
Configure the operating system to prevent the use of dictionary words for passwords. | The pam_pwquality module's dictcheck check if passwords contains dictionary words. When dictcheck is set to 1 passwords will be checked for dictionary words. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00226 | TBD - Assigned by DISA after STIG release | The operating system must enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt. | CCE-84037-1: Ensure the Logon Failure Delay is Set Correctly in login.defs | Limiting the number of logon attempts over a certain time interval reduces the chances that an unauthorized user may gain access to an account. | To ensure the logon failure delay controlled by /etc/login.defs is set properly,
add or correct the FAIL_DELAY setting in /etc/login.defs to read as follows:
FAIL_DELAY |
Applicable - Configurable | Verify the operating system enforces a delay of at least 4 seconds between logon prompts following a failed logon attempt. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 enforces a delay of at least seconds between console logon prompts following a failed logon attempt with the following command:
$ sudo grep -i "FAIL_DELAY" /etc/login.defs FAIL_DELAYIs it the case that the value of "FAIL_DELAY" is not set to "" or greater, or the line is commented out? |
Configure the operating system to enforce a delay of at least 4 seconds between logon prompts following a failed logon attempt. | To ensure the logon failure delay controlled by /etc/login.defs is set properly,
add or correct the FAIL_DELAY setting in /etc/login.defs to read as follows:
FAIL_DELAY |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-85987-6: Only Authorized Local User Accounts Exist on Operating System | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Enterprise Application tends to use the server or virtual machine exclusively.
Besides the default operating system user, there should be only authorized local
users required by the installed software groups and applications that exist on
the operating system. The authorized user list can be customized in the refine
value variable var_accounts_authorized_local_users_regex.
OVAL regular expression is used for the user list.
Configure the system so all accounts on the system are assigned to an active system,
application, or user account. Remove accounts that do not support approved system
activities or that allow for a normal user to perform administrative-level actions.
To remove unauthorized system accounts, use the following command:
$ sudo userdel unauthorized_user |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that there are no unauthorized local user accounts, run the following command:
$ less /etc/passwdInspect the results, and if unauthorized local user accounts exist, remove them by running the following command: $ sudo userdel unauthorized_userIs it the case that there are unauthorized local user accounts on the system? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Enterprise Application tends to use the server or virtual machine exclusively.
Besides the default operating system user, there should be only authorized local
users required by the installed software groups and applications that exist on
the operating system. The authorized user list can be customized in the refine
value variable var_accounts_authorized_local_users_regex.
OVAL regular expression is used for the user list.
Configure the system so all accounts on the system are assigned to an active system,
application, or user account. Remove accounts that do not support approved system
activities or that allow for a normal user to perform administrative-level actions.
To remove unauthorized system accounts, use the following command:
$ sudo userdel unauthorized_user |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83789-8: Ensure Home Directories are Created for New Users | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | All local interactive user accounts, upon creation, should be assigned a home directory.
Configure the operating system to assign home directories to all new local interactive users by setting the CREATE_HOME parameter in /etc/login.defs to yes as follows: CREATE_HOME yes |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify all local interactive users on Red Hat Enterprise Linux 8 are assigned a home
directory upon creation with the following command:
$ grep -i create_home /etc/login.defs CREATE_HOME yesIs it the case that the value for "CREATE_HOME" parameter is not set to "yes", the line is missing, or the line is commented out? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | All local interactive user accounts, upon creation, should be assigned a home directory.
Configure the operating system to assign home directories to all new local interactive users by setting the CREATE_HOME parameter in /etc/login.defs to yes as follows: CREATE_HOME yes |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80649-7: Verify Only Root Has UID 0 | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | If any account other than root has a UID of 0, this misconfiguration should
be investigated and the accounts other than root should be removed or have
their UID changed.
If the account is associated with system commands or applications the UID should be changed to one greater than "0" but less than "1000." Otherwise assign a UID greater than "1000" that has not already been assigned. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that only the "root" account has a UID "0" assignment with the
following command:
$ awk -F: '$3 == 0 {print $1}' /etc/passwd
rootIs it the case that any accounts other than "root" have a UID of "0"? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | If any account other than root has a UID of 0, this misconfiguration should
be investigated and the accounts other than root should be removed or have
their UID changed.
If the account is associated with system commands or applications the UID should be changed to one greater than "0" but less than "1000." Otherwise assign a UID greater than "1000" that has not already been assigned. |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-85877-9: Ensure PAM password complexity module is enabled in password-auth | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To enable PAM password complexity in password-auth file: Edit the password section in /etc/pam.d/password-auth to show password requisite pam_pwquality.so. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To check if pam_pwquality.so is enabled in password-auth, run the following command:
$ grep pam_pwquality /etc/pam.d/password-authThe output should be similar to the following: password requisite pam_pwquality.soIs it the case that pam_pwquality.so is not enabled in password-auth? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To enable PAM password complexity in password-auth file: Edit the password section in /etc/pam.d/password-auth to show password requisite pam_pwquality.so. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-85872-0: Ensure PAM password complexity module is enabled in system-auth | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To enable PAM password complexity in system-auth file: Edit the password section in /etc/pam.d/system-auth to show password requisite pam_pwquality.so. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To check if pam_pwquality.so is enabled in system-auth, run the following command:
$ grep pam_pwquality /etc/pam.d/system-authThe output should be similar to the following: password requisite pam_pwquality.soIs it the case that pam_pwquality.so is not enabled in system-auth? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To enable PAM password complexity in system-auth file: Edit the password section in /etc/pam.d/system-auth to show password requisite pam_pwquality.so. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80664-6: Ensure PAM Enforces Password Requirements - Authentication Retry Prompts Permitted Per-Session | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To configure the number of retry prompts that are permitted per-session: Edit the /etc/security/pwquality.conf to include retry=, or a lower value if site policy is more restrictive. The DoD requirement is a maximum of 3 prompts per session. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify Red Hat Enterprise Linux 8 is configured to limit the "pwquality" retry option to .
Check for the use of the "pwquality" retry option in the pwquality.conf file with the following command:
$ grep retry /etc/security/pwquality.confIs it the case that the value of "retry" is set to "0" or greater than "", or is missing? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To configure the number of retry prompts that are permitted per-session: Edit the /etc/security/pwquality.conf to include retry=, or a lower value if site policy is more restrictive. The DoD requirement is a maximum of 3 prompts per session. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81036-6: Ensure the Default Bash Umask is Set Correctly | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To ensure the default umask for users of the Bash shell is set properly,
add or correct the umask setting in /etc/bashrc to read
as follows:
umask |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the umask setting is configured correctly in the /etc/bashrc file with the following command:
$ sudo grep "umask" /etc/bashrc umaskIs it the case that the value for the "umask" parameter is not "", or the "umask" parameter is missing or is commented out? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To ensure the default umask for users of the Bash shell is set properly,
add or correct the umask setting in /etc/bashrc to read
as follows:
umask |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81037-4: Ensure the Default C Shell Umask is Set Correctly | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To ensure the default umask for users of the C shell is set properly,
add or correct the umask setting in /etc/csh.cshrc to read as follows:
umask |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the "umask" setting is configured correctly in the "/etc/csh.cshrc" file with the following command: $ grep umask /etc/csh.cshrc umask 077 umask 077 Is it the case that the value for the "umask" parameter is not "", or the "umask" parameter is missing or is commented out? | Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To ensure the default umask for users of the C shell is set properly,
add or correct the umask setting in /etc/csh.cshrc to read as follows:
umask |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81035-8: Ensure the Default Umask is Set Correctly in /etc/profile | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To ensure the default umask controlled by /etc/profile is set properly,
add or correct the umask setting in /etc/profile to read as follows:
umaskNote that /etc/profile also reads scrips within /etc/profile.d directory. These scripts are also valid files to set umask value. Therefore, they should also be considered during the check and properly remediated, if necessary. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the umask setting is configured correctly in the /etc/profile file
or scripts within /etc/profile.d directory with the following command:
$ grep "umask" /etc/profile* umaskIs it the case that the value for the "umask" parameter is not "", or the "umask" parameter is missing or is commented out? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To ensure the default umask controlled by /etc/profile is set properly,
add or correct the umask setting in /etc/profile to read as follows:
umaskNote that /etc/profile also reads scrips within /etc/profile.d directory. These scripts are also valid files to set umask value. Therefore, they should also be considered during the check and properly remediated, if necessary. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84044-7: Ensure the Default Umask is Set Correctly For Interactive Users | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Remove the UMASK environment variable from all interactive users initialization files. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that the default umask for all local interactive users is "077". Identify the locations of all local interactive user home directories by looking at the "/etc/passwd" file. Check all local interactive user initialization files for interactive users with the following command: Note: The example is for a system that is configured to create users home directories in the "/home" directory. # grep -ri umask /home/ /home/smithj/.bash_history:grep -i umask /etc/bashrc /etc/csh.cshrc /etc/profile /home/smithj/.bash_history:grep -i umask /etc/login.defs Is it the case that any local interactive user initialization files are found to have a umask statement that sets a value less restrictive than "077"? | Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Remove the UMASK environment variable from all interactive users initialization files. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84039-7: User Initialization Files Must Not Run World-Writable Programs | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Set the mode on files being executed by the user initialization files with the
following command:
$ sudo chmod o-w FILE |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that local initialization files do not execute world-writable programs with the following command:
Note: The example will be for a system that is configured to create user home directories in the "/home" directory.
$ sudo find /home -perm -002 -type f -name ".[^.]*" -exec ls -ld {} \; Is it the case that any local initialization files are found to reference world-writable files? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Set the mode on files being executed by the user initialization files with the
following command:
$ sudo chmod o-w FILE |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84040-5: Ensure that Users Path Contains Only Local Directories | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Ensure that all interactive user initialization files executable search path statements do not contain statements that will reference a working directory other than the users home directory. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that all local interactive user initialization file executable search path statements do not contain statements that will reference a working directory other than user home directories with the following commands:
$ sudo grep -i path= /home/*/.* /home/[localinteractiveuser]/.bash_profile:PATH=$PATH:$HOME/.local/bin:$HOME/binIs it the case that any local interactive user initialization files have executable search path statements that include directories outside of their home directory and is not documented with the ISSO as an operational requirement? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Ensure that all interactive user initialization files executable search path statements do not contain statements that will reference a working directory other than the users home directory. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84036-3: All Interactive Users Must Have A Home Directory Defined | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Assign home directories to all interactive users that currently do not have a home directory assigned. This rule checks if the home directory is properly defined in a folder which has at least one parent folder, like "user" in "/home/user" or "/remote/users/user". Therefore, this rule will report a finding for home directories like /users, /tmp or /. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that interactive users on the system have a home directory assigned with the following command:
$ sudo awk -F: '($3>=1000)&&($7 !~ /nologin/){print $1, $3, $6}' /etc/passwd
Inspect the output and verify that all interactive users (normally users with a UID greater than 1000) have a home directory defined. Is it the case that users home directory is not defined? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Assign home directories to all interactive users that currently do not have a home directory assigned. This rule checks if the home directory is properly defined in a folder which has at least one parent folder, like "user" in "/home/user" or "/remote/users/user". Therefore, this rule will report a finding for home directories like /users, /tmp or /. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83424-2: All Interactive Users Home Directories Must Exist | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Create home directories to all local interactive users that currently do not
have a home directory assigned. Use the following commands to create the user
home directory assigned in /etc/passwd:
$ sudo mkdir /home/USER |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the assigned home directories of all interactive users on the system exist with the following command:
$ sudo pwck -r user 'mailnull': directory 'var/spool/mqueue' does not existThe output should not return any interactive users. Is it the case that users home directory does not exist? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Create home directories to all local interactive users that currently do not
have a home directory assigned. Use the following commands to create the user
home directory assigned in /etc/passwd:
$ sudo mkdir /home/USER |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-86534-5: All User Files and Directories In The Home Directory Must Be Group-Owned By The Primary Group | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Change the group of a local interactive users files and directories to a
group that the interactive user is a member of. To change the group owner of a
local interactive users files and directories, use the following command:
$ sudo chgrp USER_GROUP /home/USER/FILE_DIRThis rule ensures every file or directory under the home directory related to an interactive user is group-owned by an interactive user. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify all files and directories in interactive user home directory are
group-owned by a group the user is a member of, run the
following command:
$ sudo ls -lLR /home/USERIs it the case that the group ownership is incorrect? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Change the group of a local interactive users files and directories to a
group that the interactive user is a member of. To change the group owner of a
local interactive users files and directories, use the following command:
$ sudo chgrp USER_GROUP /home/USER/FILE_DIRThis rule ensures every file or directory under the home directory related to an interactive user is group-owned by an interactive user. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-85888-6: All User Files and Directories In The Home Directory Must Have Mode 0750 Or Less Permissive | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Set the mode on files and directories in the local interactive user home
directory with the following command:
$ sudo chmod 0750 /home/USER/FILE_DIRFiles that begin with a "." are excluded from this requirement. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify all files and directories contained in interactive user home
directory, excluding local initialization files, have a mode of 0750,
run the following command:
$ sudo ls -lLR /home/USERIs it the case that home directory files or folders have incorrect permissions? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Set the mode on files and directories in the local interactive user home
directory with the following command:
$ sudo chmod 0750 /home/USER/FILE_DIRFiles that begin with a "." are excluded from this requirement. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84220-3: Configure AIDE to Verify Access Control Lists (ACLs) | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | By default, the acl option is added to the FIPSR ruleset in AIDE.
If using a custom ruleset or the acl option is missing, add acl
to the appropriate ruleset.
For example, add acl to the following line in /etc/aide.conf:
FIPSR = p+i+n+u+g+s+m+c+acl+selinux+xattrs+sha256AIDE rules can be configured in multiple ways; this is merely one example that is already configured by default. The remediation provided with this rule adds acl to all rule sets available in /etc/aide.conf |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine that AIDE is verifying ACLs, run the following command:
$ grep acl /etc/aide.confVerify that the acl option is added to the correct ruleset. Is it the case that the acl option is missing or not added to the correct ruleset? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | By default, the acl option is added to the FIPSR ruleset in AIDE.
If using a custom ruleset or the acl option is missing, add acl
to the appropriate ruleset.
For example, add acl to the following line in /etc/aide.conf:
FIPSR = p+i+n+u+g+s+m+c+acl+selinux+xattrs+sha256AIDE rules can be configured in multiple ways; this is merely one example that is already configured by default. The remediation provided with this rule adds acl to all rule sets available in /etc/aide.conf |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83733-6: Configure AIDE to Verify Extended Attributes | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | By default, the xattrs option is added to the FIPSR ruleset in AIDE.
If using a custom ruleset or the xattrs option is missing, add xattrs
to the appropriate ruleset.
For example, add xattrs to the following line in /etc/aide.conf:
FIPSR = p+i+n+u+g+s+m+c+acl+selinux+xattrs+sha256AIDE rules can be configured in multiple ways; this is merely one example that is already configured by default. The remediation provided with this rule adds xattrs to all rule sets available in /etc/aide.conf |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine that AIDE is verifying extended file attributes, run the following command:
$ grep xattrs /etc/aide.confVerify that the xattrs option is added to the correct ruleset. Is it the case that the xattrs option is missing or not added to the correct ruleset? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | By default, the xattrs option is added to the FIPSR ruleset in AIDE.
If using a custom ruleset or the xattrs option is missing, add xattrs
to the appropriate ruleset.
For example, add xattrs to the following line in /etc/aide.conf:
FIPSR = p+i+n+u+g+s+m+c+acl+selinux+xattrs+sha256AIDE rules can be configured in multiple ways; this is merely one example that is already configured by default. The remediation provided with this rule adds xattrs to all rule sets available in /etc/aide.conf |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82233-8: Include Local Events in Audit Logs | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To configure Audit daemon to include local events in Audit logs, set local_events to yes in /etc/audit/auditd.conf. This is the default setting. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that Audit Daemon is configured to include local events, run the
following command:
$ sudo grep local_events /etc/audit/auditd.confThe output should return the following: local_events = yesIs it the case that local_events isn't set to yes? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To configure Audit daemon to include local events in Audit logs, set local_events to yes in /etc/audit/auditd.conf. This is the default setting. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82201-5: Resolve information before writing to audit logs | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To configure Audit daemon to resolve all uid, gid, syscall, architecture, and socket address information before writing the events to disk, set log_format to ENRICHED in /etc/audit/auditd.conf. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that Audit Daemon is configured to resolve all uid, gid, syscall,
architecture, and socket address information before writing the event to disk,
run the following command:
$ sudo grep log_format /etc/audit/auditd.confThe output should return the following: log_format = ENRICHEDIs it the case that log_format isn't set to ENRICHED? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To configure Audit daemon to resolve all uid, gid, syscall, architecture, and socket address information before writing the events to disk, set log_format to ENRICHED in /etc/audit/auditd.conf. | low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82251-0: Disable core dump backtraces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The ProcessSizeMax option in [Coredump] section of /etc/systemd/coredump.conf specifies the maximum size in bytes of a core which will be processed. Core dumps exceeding this size may be stored, but the backtrace will not be generated. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify Red Hat Enterprise Linux 8 disables core dump backtraces by issuing the following command:
$ grep -i process /etc/systemd/coredump.conf ProcessSizeMax=0Is it the case that the "ProcessSizeMax" item is missing, commented out, or the value is anything other than "0" and the need for core dumps is not documented with the Information System Security Officer (ISSO) as an operational requirement for all domains that have the "core" item assigned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The ProcessSizeMax option in [Coredump] section of /etc/systemd/coredump.conf specifies the maximum size in bytes of a core which will be processed. Core dumps exceeding this size may be stored, but the backtrace will not be generated. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82252-8: Disable storing core dump | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The Storage option in [Coredump] sectionof /etc/systemd/coredump.conf can be set to none to disable storing core dumps permanently. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify Red Hat Enterprise Linux 8 disables storing core dumps for all users by issuing the following command: $ grep -i storage /etc/systemd/coredump.conf Storage=none Is it the case that Storage is not set to none or is commented out and the need for core dumps is not documented with the Information System Security Officer (ISSO) as an operational requirement for all domains that have the "core" item assigned? | Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The Storage option in [Coredump] sectionof /etc/systemd/coredump.conf can be set to none to disable storing core dumps permanently. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84028-0: Disable Ctrl-Alt-Del Reboot Key Sequence in GNOME3 | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | By default, GNOME will reboot the system if the
Ctrl-Alt-Del key sequence is pressed.
To configure the system to ignore the Ctrl-Alt-Del key sequence from the Graphical User Interface (GUI) instead of rebooting the system, add or set logout to [''] in /etc/dconf/db/local.d/00-security-settings. For example: [org/gnome/settings-daemon/plugins/media-keys] logout=['']Once the settings have been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/settings-daemon/plugins/media-keys/logoutAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To ensure the system is configured to ignore the Ctrl-Alt-Del sequence,
run the following command:
$ gsettings get org.gnome.settings-daemon.plugins.media-keys logout $ grep logout /etc/dconf/db/local.d/locks/*If properly configured, the output should be /org/gnome/settings-daemon/plugins/media-keys/logout Is it the case that GNOME3 is configured to reboot when Ctrl-Alt-Del is pressed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | By default, GNOME will reboot the system if the
Ctrl-Alt-Del key sequence is pressed.
To configure the system to ignore the Ctrl-Alt-Del key sequence from the Graphical User Interface (GUI) instead of rebooting the system, add or set logout to [''] in /etc/dconf/db/local.d/00-security-settings. For example: [org/gnome/settings-daemon/plugins/media-keys] logout=['']Once the settings have been added, add a lock to /etc/dconf/db/local.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/settings-daemon/plugins/media-keys/logoutAfter the settings have been set, run dconf update. |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-86195-5: Disable the GNOME3 Login User List | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | In the default graphical environment, users logging directly into the
system are greeted with a login screen that displays all known users.
This functionality should be disabled by setting disable-user-list
to true.
To disable, add or edit disable-user-list to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] disable-user-list=trueOnce the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/disable-user-listAfter the settings have been set, run dconf update. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To ensure the user list is disabled, run the following command:
$ grep disable-user-list /etc/dconf/db/gdm.d/*The output should be true. To ensure that users cannot enable displaying the user list, run the following: $ grep disable-user-list /etc/dconf/db/gdm.d/locks/*If properly configured, the output should be /org/gnome/login-screen/disable-user-list Is it the case that disable-user-list has not been configured or is not disabled? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | In the default graphical environment, users logging directly into the
system are greeted with a login screen that displays all known users.
This functionality should be disabled by setting disable-user-list
to true.
To disable, add or edit disable-user-list to /etc/dconf/db/gdm.d/00-security-settings. For example: [org/gnome/login-screen] disable-user-list=trueOnce the setting has been added, add a lock to /etc/dconf/db/gdm.d/locks/00-security-settings-lock to prevent user modification. For example: /org/gnome/login-screen/disable-user-listAfter the settings have been set, run dconf update. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83375-6: Ensure All World-Writable Directories Are Owned by root User | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | All directories in local partitions which are world-writable should be owned by root. If any world-writable directories are not owned by root, this should be investigated. Following this, the files should be deleted or assigned to root user. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The following command will discover and print world-writable directories that
are not owned by root. Run it once for each local partition PART:
$ sudo find PART -xdev -type d -perm -0002 -uid +0 -printIs it the case that there are world-writable directories not owned by root? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | All directories in local partitions which are world-writable should be owned by root. If any world-writable directories are not owned by root, this should be investigated. Following this, the files should be deleted or assigned to root user. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-85886-0: Ensure All World-Writable Directories Are Group Owned by a System Account | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | All directories in local partitions which are world-writable should be group owned by root or another system account. If any world-writable directories are not group owned by a system account, this should be investigated. Following this, the files should be deleted or assigned to an appropriate group. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The following command will discover and print world-writable directories that
are not group owned by a system account, given the assumption that only system
accounts have a gid lower than 1000. Run it once for each local partition PART:
$ sudo find PART -xdev -type d -perm -0002 -gid +999 -printIs it the case that there is output? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | All directories in local partitions which are world-writable should be group owned by root or another system account. If any world-writable directories are not group owned by a system account, this should be investigated. Following this, the files should be deleted or assigned to an appropriate group. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80784-2: Disable Ctrl-Alt-Del Burst Action | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | By default, SystemD will reboot the system if the Ctrl-Alt-Del
key sequence is pressed Ctrl-Alt-Delete more than 7 times in 2 seconds.
To configure the system to ignore the CtrlAltDelBurstAction setting, add or modify the following to /etc/systemd/system.conf: CtrlAltDelBurstAction=none |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To ensure the system is configured to ignore the Ctrl-Alt-Del setting,
enter the following command:
$ sudo grep -i ctrlaltdelburstaction /etc/systemd/system.confThe output should return: CtrlAltDelBurstAction=noneIs it the case that the system is configured to reboot when Ctrl-Alt-Del is pressed more than 7 times in 2 seconds.? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | By default, SystemD will reboot the system if the Ctrl-Alt-Del
key sequence is pressed Ctrl-Alt-Delete more than 7 times in 2 seconds.
To configure the system to ignore the CtrlAltDelBurstAction setting, add or modify the following to /etc/systemd/system.conf: CtrlAltDelBurstAction=none |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80785-9: Disable Ctrl-Alt-Del Reboot Activation | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | By default, SystemD will reboot the system if the Ctrl-Alt-Del
key sequence is pressed.
To configure the system to ignore the Ctrl-Alt-Del key sequence from the command line instead of rebooting the system, do either of the following: ln -sf /dev/null /etc/systemd/system/ctrl-alt-del.targetor systemctl mask ctrl-alt-del.target Do not simply delete the /usr/lib/systemd/system/ctrl-alt-del.service file, as this file may be restored during future system updates. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To ensure the system is configured to mask the Ctrl-Alt-Del sequence, Check
that the ctrl-alt-del.target is masked and not active with the following
command:
sudo systemctl status ctrl-alt-del.targetThe output should indicate that the target is masked and not active. It might resemble following output: ctrl-alt-del.target Loaded: masked (/dev/null; bad) Active: inactive (dead)Is it the case that the system is configured to reboot when Ctrl-Alt-Del is pressed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | By default, SystemD will reboot the system if the Ctrl-Alt-Del
key sequence is pressed.
To configure the system to ignore the Ctrl-Alt-Del key sequence from the command line instead of rebooting the system, do either of the following: ln -sf /dev/null /etc/systemd/system/ctrl-alt-del.targetor systemctl mask ctrl-alt-del.target Do not simply delete the /usr/lib/systemd/system/ctrl-alt-del.service file, as this file may be restored during future system updates. |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81038-2: Disable Core Dumps for All Users | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To disable core dumps for all users, add the following line to
/etc/security/limits.conf, or to a file within the
/etc/security/limits.d/ directory:
* hard core 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that core dumps are disabled for all users, run the following command:
$ grep core /etc/security/limits.conf * hard core 0Is it the case that the "core" item is missing, commented out, or the value is anything other than "0" and the need for core dumps is not documented with the Information System Security Officer (ISSO) as an operational requirement for all domains that have the "core"? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To disable core dumps for all users, add the following line to
/etc/security/limits.conf, or to a file within the
/etc/security/limits.d/ directory:
* hard core 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80788-3: Ensure PAM Displays Last Logon/Access Notification | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To configure the system to notify users of last logon/access using pam_lastlog,
add or correct the pam_lastlog settings in /etc/pam.d/postlogin
to include showfailed option, such as:
session [default=1] pam_lastlog.so showfailedAnd make sure that the silent option is not set for this specific line. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify users are provided with feedback on when account accesses last occurred with the following command:
$ sudo grep pam_lastlog /etc/pam.d/postlogin session [default=1] pam_lastlog.so showfailedIs it the case that "pam_lastlog.so" is not properly configured in "/etc/pam.d/postlogin" file? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To configure the system to notify users of last logon/access using pam_lastlog,
add or correct the pam_lastlog settings in /etc/pam.d/postlogin
to include showfailed option, such as:
session [default=1] pam_lastlog.so showfailedAnd make sure that the silent option is not set for this specific line. |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-88248-0: Enable authselect | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Configure user authentication setup to use the authselect tool. If authselect profile is selected, the rule will enable the profile. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that authselect is enabled by running
authselect currentIf authselect is enabled on the system, the output should show the ID of the profile which is currently in use. Is it the case that authselect is not used to manage user authentication setup on the system? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Configure user authentication setup to use the authselect tool. If authselect profile is selected, the rule will enable the profile. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83434-1: All Interactive User Home Directories Must Be Group-Owned By The Primary Group | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Change the group owner of interactive users home directory to the
group found in /etc/passwd. To change the group owner of
interactive users home directory, use the following command:
$ sudo chgrp USER_GROUP /home/USERThis rule ensures every home directory related to an interactive user is group-owned by an interactive user. It also ensures that interactive users are group-owners of one and only one home directory. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify the assigned home directory of all interactive users is group-
owned by that users primary GID, run the following command:
# ls -ld $(awk -F: '($3>=1000)&&($7 !~ /nologin/){print $6}' /etc/passwd) Is it the case that the group ownership is incorrect? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Change the group owner of interactive users home directory to the
group found in /etc/passwd. To change the group owner of
interactive users home directory, use the following command:
$ sudo chgrp USER_GROUP /home/USERThis rule ensures every home directory related to an interactive user is group-owned by an interactive user. It also ensures that interactive users are group-owners of one and only one home directory. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-86106-2: Ensure All User Initialization Files Have Mode 0740 Or Less Permissive | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Set the mode of the user initialization files, including the root user,
to 0740 with the following commands:
$ sudo chmod 0740 /root/.INIT_FILE $ sudo chmod 0740 /home/USER/.INIT_FILE |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that all user initialization files have a mode of 0740 or
less permissive, run the following command:
$ sudo find /home -type f -name '\.*' \( -perm -0002 -o -perm -0020 \)There should be no output. Is it the case that they are not 0740 or more permissive? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Set the mode of the user initialization files, including the root user,
to 0740 with the following commands:
$ sudo chmod 0740 /root/.INIT_FILE $ sudo chmod 0740 /home/USER/.INIT_FILE |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84038-9: All Interactive User Home Directories Must Have mode 0750 Or Less Permissive | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Change the mode of interactive users home directories to 0750. To
change the mode of interactive users home directory, use the
following command:
$ sudo chmod 0750 /home/USER |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify the assigned home directory of all interactive user home directories
have a mode of 0750or less permissive, run the following command: $ sudo ls -l /homeInspect the output for any directories with incorrect permissions. Is it the case that they are more permissive? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Change the mode of interactive users home directories to 0750. To
change the mode of interactive users home directory, use the
following command:
$ sudo chmod 0750 /home/USER |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82424-3: Verify Permissions on SSH Server Private *_key Key Files | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | SSH server private keys - files that match the /etc/ssh/*_key glob, have to have restricted permissions.
If those files are owned by the root user and the root group, they have to have the 0600 permission or stricter.
If they are owned by the root user, but by a dedicated group ssh_keys, they can have the 0640 permission or stricter. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To check the permissions of /etc/ssh/*_key,
run the command:
$ ls -l /etc/ssh/*_keyIf properly configured, the output should indicate the following permissions: -rw------- Is it the case that /etc/ssh/*_key does not have unix mode -rw-------? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | SSH server private keys - files that match the /etc/ssh/*_key glob, have to have restricted permissions.
If those files are owned by the root user and the root group, they have to have the 0600 permission or stricter.
If they are owned by the root user, but by a dedicated group ssh_keys, they can have the 0640 permission or stricter. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82428-4: Verify Permissions on SSH Server Public *.pub Key Files | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To properly set the permissions of /etc/ssh/*.pub, run the command: $ sudo chmod 0644 /etc/ssh/*.pub |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To check the permissions of /etc/ssh/*.pub,
run the command:
$ ls -l /etc/ssh/*.pubIf properly configured, the output should indicate the following permissions: -rw-r--r-- Is it the case that /etc/ssh/*.pub does not have unix mode -rw-r--r--? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To properly set the permissions of /etc/ssh/*.pub, run the command: $ sudo chmod 0644 /etc/ssh/*.pub |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83497-8: Ensure All Files Are Owned by a Group | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | If any file is not group-owned by a group present in /etc/group, the cause of the lack of
group-ownership must be investigated. Following this, those files should be deleted or
assigned to an appropriate group.
Locate the mount points related to local devices by the following command:
$ findmnt -n -l -k -it $(awk '/nodev/ { print $2 }' /proc/filesystems | paste -sd,)
For all mount points listed by the previous command, it is necessary to search for files which
do not belong to a valid group using the following command:
$ sudo find MOUNTPOINT -xdev -nogroup 2>/dev/null |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The following command will locate the mount points related to local devices:
$ findmnt -n -l -k -it $(awk '/nodev/ { print $2 }' /proc/filesystems | paste -sd,)
The following command will show files which do not belong to a valid group:
$ sudo find MOUNTPOINT -xdev -nogroup 2>/dev/nullReplace MOUNTPOINT by the mount points listed by the fist command. No files without a valid group should be located. Is it the case that there is output? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | If any file is not group-owned by a group present in /etc/group, the cause of the lack of
group-ownership must be investigated. Following this, those files should be deleted or
assigned to an appropriate group.
Locate the mount points related to local devices by the following command:
$ findmnt -n -l -k -it $(awk '/nodev/ { print $2 }' /proc/filesystems | paste -sd,)
For all mount points listed by the previous command, it is necessary to search for files which
do not belong to a valid group using the following command:
$ sudo find MOUNTPOINT -xdev -nogroup 2>/dev/null |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80944-2: Enable page allocator poisoning | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To enable poisoning of free pages,
add the argument page_poison=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that page_poison=1 is added as a kernel command line
argument to newly installed kernels, add page_poison=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... page_poison=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="page_poison=1" |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes page_poison=1,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*page_poison=1.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*page_poison=1.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'page_poison=1'The command should not return any output. Is it the case that page allocator poisoning is not enabled? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To enable poisoning of free pages,
add the argument page_poison=1 to the default
GRUB 2 command line for the Linux operating system.
To ensure that page_poison=1 is added as a kernel command line
argument to newly installed kernels, add page_poison=1 to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... page_poison=1 ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="page_poison=1" |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80946-7: Disable vsyscalls | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To disable use of virtual syscalls,
add the argument vsyscall=none to the default
GRUB 2 command line for the Linux operating system.
To ensure that vsyscall=none is added as a kernel command line
argument to newly installed kernels, add vsyscall=none to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... vsyscall=none ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="vsyscall=none" |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Inspect the form of default GRUB 2 command line for the Linux operating system
in /etc/default/grub. If it includes vsyscall=none,
then the parameter will be configured for newly installed kernels.
First check if the GRUB recovery is enabled:
$ sudo grep 'GRUB_DISABLE_RECOVERY' /etc/default/grubIf this option is set to true, then check that a line is output by the following command: $ sudo grep 'GRUB_CMDLINE_LINUX_DEFAULT.*vsyscall=none.*' /etc/default/grubIf the recovery is disabled, check the line with $ sudo grep 'GRUB_CMDLINE_LINUX.*vsyscall=none.*' /etc/default/grub.Moreover, command line parameters for currently installed kernels should be checked as well. Run the following command: $ sudo grubby --info=ALL | grep args | grep -v 'vsyscall=none'The command should not return any output. Is it the case that vsyscalls are enabled? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To disable use of virtual syscalls,
add the argument vsyscall=none to the default
GRUB 2 command line for the Linux operating system.
To ensure that vsyscall=none is added as a kernel command line
argument to newly installed kernels, add vsyscall=none to the
default Grub2 command line for Linux operating systems. Modify the line within
/etc/default/grub as shown below:
GRUB_CMDLINE_LINUX="... vsyscall=none ..."Run the following command to update command line for already installed kernels: # grubby --update-kernel=ALL --args="vsyscall=none" |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80947-5: The Installed Operating System Is Vendor Supported | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The installed operating system must be maintained by a vendor. Red Hat Enterprise Linux is supported by Red Hat, Inc. As the Red Hat Enterprise Linux vendor, Red Hat, Inc. is responsible for providing security patches. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that the installed operating system is supported, run
the following command:
$ grep -i "red hat" /etc/redhat-release Red Hat Enterprise Linux 8Is it the case that the installed operating system is not supported? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The installed operating system must be maintained by a vendor. Red Hat Enterprise Linux is supported by Red Hat, Inc. As the Red Hat Enterprise Linux vendor, Red Hat, Inc. is responsible for providing security patches. | high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82028-2: Disable ATM Support | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The Asynchronous Transfer Mode (ATM) is a protocol operating on
network, data link, and physical layers, based on virtual circuits
and virtual paths.
To configure the system to prevent the atm
kernel module from being loaded, add the following line to the file /etc/modprobe.d/atm.conf:
install atm /bin/falseTo configure the system to prevent the atm from being used,
add the following line to file /etc/modprobe.d/atm.conf:
blacklist atm |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. |
If the system is configured to prevent the loading of the atm kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the atm kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r atm /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The Asynchronous Transfer Mode (ATM) is a protocol operating on
network, data link, and physical layers, based on virtual circuits
and virtual paths.
To configure the system to prevent the atm
kernel module from being loaded, add the following line to the file /etc/modprobe.d/atm.conf:
install atm /bin/falseTo configure the system to prevent the atm from being used,
add the following line to file /etc/modprobe.d/atm.conf:
blacklist atm |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82059-7: Disable CAN Support | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The Controller Area Network (CAN) is a serial communications
protocol which was initially developed for automotive and
is now also used in marine, industrial, and medical applications.
To configure the system to prevent the can
kernel module from being loaded, add the following line to the file /etc/modprobe.d/can.conf:
install can /bin/falseTo configure the system to prevent the can from being used,
add the following line to file /etc/modprobe.d/can.conf:
blacklist can |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. |
If the system is configured to prevent the loading of the can kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the can kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r can /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The Controller Area Network (CAN) is a serial communications
protocol which was initially developed for automotive and
is now also used in marine, industrial, and medical applications.
To configure the system to prevent the can
kernel module from being loaded, add the following line to the file /etc/modprobe.d/can.conf:
install can /bin/falseTo configure the system to prevent the can from being used,
add the following line to file /etc/modprobe.d/can.conf:
blacklist can |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80834-5: Disable SCTP Support | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The Stream Control Transmission Protocol (SCTP) is a
transport layer protocol, designed to support the idea of
message-oriented communication, with several streams of messages
within one connection.
To configure the system to prevent the sctp
kernel module from being loaded, add the following line to the file /etc/modprobe.d/sctp.conf:
install sctp /bin/falseTo configure the system to prevent the sctp from being used,
add the following line to file /etc/modprobe.d/sctp.conf:
blacklist sctp |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. |
If the system is configured to prevent the loading of the sctp kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the sctp kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r sctp /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The Stream Control Transmission Protocol (SCTP) is a
transport layer protocol, designed to support the idea of
message-oriented communication, with several streams of messages
within one connection.
To configure the system to prevent the sctp
kernel module from being loaded, add the following line to the file /etc/modprobe.d/sctp.conf:
install sctp /bin/falseTo configure the system to prevent the sctp from being used,
add the following line to file /etc/modprobe.d/sctp.conf:
blacklist sctp |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80835-2: Disable Modprobe Loading of USB Storage Driver | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To prevent USB storage devices from being used, configure the kernel module loading system
to prevent automatic loading of the USB storage driver.
To configure the system to prevent the usb-storage
kernel module from being loaded, add the following line to the file /etc/modprobe.d/usb-storage.conf:
install usb-storage /bin/falseTo configure the system to prevent the usb-storage from being used,
add the following line to file /etc/modprobe.d/usb-storage.conf:
blacklist usb-storageThis will prevent the modprobe program from loading the usb-storage module, but will not prevent an administrator (or another program) from using the insmod program to load the module manually. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. |
If the system is configured to prevent the loading of the usb-storage kernel module,
it will contain lines inside any file in /etc/modprobe.d or the deprecated /etc/modprobe.conf.
These lines instruct the module loading system to run another program (such as /bin/false) upon a module install event.
These lines can also instruct the module loading system to ignore the usb-storage kernel module via blacklist keyword.
Run the following command to search for such lines in all files in /etc/modprobe.d and the deprecated /etc/modprobe.conf:
$ grep -r usb-storage /etc/modprobe.conf /etc/modprobe.dIs it the case that no line is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To prevent USB storage devices from being used, configure the kernel module loading system
to prevent automatic loading of the USB storage driver.
To configure the system to prevent the usb-storage
kernel module from being loaded, add the following line to the file /etc/modprobe.d/usb-storage.conf:
install usb-storage /bin/falseTo configure the system to prevent the usb-storage from being used,
add the following line to file /etc/modprobe.d/usb-storage.conf:
blacklist usb-storageThis will prevent the modprobe program from loading the usb-storage module, but will not prevent an administrator (or another program) from using the insmod program to load the module manually. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-86038-7: Add nosuid Option to /boot/efi | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The nosuid mount option can be used to prevent
execution of setuid programs in /boot/efi. The SUID and SGID permissions
should not be required on the boot partition.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/boot/efi. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the nosuid option is configured for the /boot/efi mount point,
run the following command:
$ sudo mount | grep '\s/boot/efi\s' . . . /boot/efi . . . nosuid . . .Is it the case that the "/boot/efi" file system does not have the "nosuid" option set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The nosuid mount option can be used to prevent
execution of setuid programs in /boot/efi. The SUID and SGID permissions
should not be required on the boot partition.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/boot/efi. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81033-3: Add nosuid Option to /boot | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The nosuid mount option can be used to prevent
execution of setuid programs in /boot. The SUID and SGID permissions
should not be required on the boot partition.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/boot. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the nosuid option is configured for the /boot mount point,
run the following command:
$ sudo mount | grep '\s/boot\s' . . . /boot . . . nosuid . . .Is it the case that the "/boot" file system does not have the "nosuid" option set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The nosuid mount option can be used to prevent
execution of setuid programs in /boot. The SUID and SGID permissions
should not be required on the boot partition.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/boot. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83328-5: Add noexec Option to /home | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The noexec mount option can be used to prevent binaries from being
executed out of /home.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/home. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the noexec option is configured for the /home mount point,
run the following command:
$ sudo mount | grep '\s/home\s' . . . /home . . . noexec . . .Is it the case that the "/home" file system does not have the "noexec" option set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The noexec mount option can be used to prevent binaries from being
executed out of /home.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
/home. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81050-7: Add nosuid Option to /home | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The nosuid mount option can be used to prevent
execution of setuid programs in /home. The SUID and SGID permissions
should not be required in these user data directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/home. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the nosuid option is configured for the /home mount point,
run the following command:
$ sudo mount | grep '\s/home\s' . . . /home . . . nosuid . . .Is it the case that the "/home" file system does not have the "nosuid" option set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The nosuid mount option can be used to prevent
execution of setuid programs in /home. The SUID and SGID permissions
should not be required in these user data directories.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
/home. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82069-6: Add nodev Option to Non-Root Local Partitions | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The nodev mount option prevents files from being interpreted as
character or block devices. Legitimate character and block devices should
exist only in the /dev directory on the root partition or within
chroot jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
any non-root local partitions. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify the nodev option is configured for non-root local partitions, run the following command:
$ sudo mount | grep '^/dev\S* on /\S' | grep --invert-match 'nodev'The output shows local non-root partitions mounted without the nodev option, and there should be no output at all. Is it the case that some mounts appear among output lines? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The nodev mount option prevents files from being interpreted as
character or block devices. Legitimate character and block devices should
exist only in the /dev directory on the root partition or within
chroot jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
any non-root local partitions. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84052-0: Mount Remote Filesystems with nodev | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Add the nodev option to the fourth column of /etc/fstab for the line which controls mounting of
any NFS mounts. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify the nodev option is configured for all NFS mounts, run
the following command:
$ mount | grep nfsAll NFS mounts should show the nodev setting in parentheses. This is not applicable if NFS is not implemented. Is it the case that the setting does not show? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Add the nodev option to the fourth column of /etc/fstab for the line which controls mounting of
any NFS mounts. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82742-8: Add nodev Option to Removable Media Partitions | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The nodev mount option prevents files from being
interpreted as character or block devices.
Legitimate character and block devices should exist only in
the /dev directory on the root partition or within chroot
jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
any removable media partitions. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify file systems that are used for removable media are mounted with the "nodev" option with the following command: $ sudo more /etc/fstab UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid,nodev,noexec 0 0 Is it the case that a file system found in "/etc/fstab" refers to removable media and it does not have the "nodev" option set? | Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The nodev mount option prevents files from being
interpreted as character or block devices.
Legitimate character and block devices should exist only in
the /dev directory on the root partition or within chroot
jails built for system services.
Add the nodev option to the fourth column of
/etc/fstab for the line which controls mounting of
any removable media partitions. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84050-4: Mount Remote Filesystems with noexec | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Add the noexec option to the fourth column of /etc/fstab for the line which controls mounting of
any NFS mounts. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify the noexec option is configured for all NFS mounts, run the following command:
$ mount | grep nfsAll NFS mounts should show the noexec setting in parentheses. This is not applicable if NFS is not implemented. Is it the case that the setting does not show? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Add the noexec option to the fourth column of /etc/fstab for the line which controls mounting of
any NFS mounts. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82746-9: Add noexec Option to Removable Media Partitions | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The noexec mount option prevents the direct execution of binaries
on the mounted filesystem. Preventing the direct execution of binaries from
removable media (such as a USB key) provides a defense against malicious
software that may be present on such untrusted media.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
any removable media partitions. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that binaries cannot be directly executed from removable media, run the following command:
$ grep -v noexec /etc/fstabThe resulting output will show partitions which do not have the noexec flag. Verify all partitions in the output are not removable media. Is it the case that removable media partitions are present? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The noexec mount option prevents the direct execution of binaries
on the mounted filesystem. Preventing the direct execution of binaries from
removable media (such as a USB key) provides a defense against malicious
software that may be present on such untrusted media.
Add the noexec option to the fourth column of
/etc/fstab for the line which controls mounting of
any removable media partitions. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84053-8: Mount Remote Filesystems with nosuid | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Add the nosuid option to the fourth column of /etc/fstab for the line which controls mounting of
any NFS mounts. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify the nosuid option is configured for all NFS mounts, run
the following command:
$ mount | grep nfsAll NFS mounts should show the nosuid setting in parentheses. This is not applicable if NFS is not implemented. Is it the case that the setting does not show? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Add the nosuid option to the fourth column of /etc/fstab for the line which controls mounting of
any NFS mounts. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82744-4: Add nosuid Option to Removable Media Partitions | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The nosuid mount option prevents set-user-identifier (SUID)
and set-group-identifier (SGID) permissions from taking effect. These permissions
allow users to execute binaries with the same permissions as the owner and group
of the file respectively. Users should not be allowed to introduce SUID and SGID
files into the system via partitions mounted from removeable media.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
any removable media partitions. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify file systems that are used for removable media are mounted with the "nosuid" option with the following command: $ sudo more /etc/fstab UUID=2bc871e4-e2a3-4f29-9ece-3be60c835222 /mnt/usbflash vfat noauto,owner,ro,nosuid,nodev,noexec 0 0 Is it the case that file system found in "/etc/fstab" refers to removable media and it does not have the "nosuid" option set? | Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The nosuid mount option prevents set-user-identifier (SUID)
and set-group-identifier (SGID) permissions from taking effect. These permissions
allow users to execute binaries with the same permissions as the owner and group
of the file respectively. Users should not be allowed to introduce SUID and SGID
files into the system via partitions mounted from removeable media.
Add the nosuid option to the fourth column of
/etc/fstab for the line which controls mounting of
any removable media partitions. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84049-6: Configure Multiple DNS Servers in /etc/resolv.conf | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. |
Determine whether the system is using local or DNS name resolution with the
following command:
$ sudo grep hosts /etc/nsswitch.conf hosts: files dnsIf the DNS entry is missing from the host's line in the "/etc/nsswitch.conf" file, the "/etc/resolv.conf" file must be empty. Verify the "/etc/resolv.conf" file is empty with the following command: $ sudo ls -al /etc/resolv.conf -rw-r--r-- 1 root root 0 Aug 19 08:31 resolv.confIf the DNS entry is found on the host's line of the "/etc/nsswitch.conf" file, then verify the following: Multiple Domain Name System (DNS) Servers should be configured in /etc/resolv.conf. This provides redundant name resolution services in the event that a domain server crashes. To configure the system to contain as least 2 DNS servers, add a corresponding nameserver ip_address entry in /etc/resolv.conf for each DNS server where ip_address is the IP address of a valid DNS server. For example: search example.com nameserver 192.168.0.1 nameserver 192.168.0.2 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that DNS servers have been configured properly, perform the following:
$ sudo grep nameserver /etc/resolv.confIs it the case that less than two lines are returned that are not commented out? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. |
Determine whether the system is using local or DNS name resolution with the
following command:
$ sudo grep hosts /etc/nsswitch.conf hosts: files dnsIf the DNS entry is missing from the host's line in the "/etc/nsswitch.conf" file, the "/etc/resolv.conf" file must be empty. Verify the "/etc/resolv.conf" file is empty with the following command: $ sudo ls -al /etc/resolv.conf -rw-r--r-- 1 root root 0 Aug 19 08:31 resolv.confIf the DNS entry is found on the host's line of the "/etc/nsswitch.conf" file, then verify the following: Multiple Domain Name System (DNS) Servers should be configured in /etc/resolv.conf. This provides redundant name resolution services in the event that a domain server crashes. To configure the system to contain as least 2 DNS servers, add a corresponding nameserver ip_address entry in /etc/resolv.conf for each DNS server where ip_address is the IP address of a valid DNS server. For example: search example.com nameserver 192.168.0.1 nameserver 192.168.0.2 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82283-3: Ensure System is Not Acting as a Network Sniffer | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The system should not be acting as a network sniffer, which can
capture all traffic on the network to which it is connected. Run the following
to determine if any interface is running in promiscuous mode:
$ ip link | grep PROMISCPromiscuous mode of an interface can be disabled with the following command: $ sudo ip link set dev device_name multicast off promisc off |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that Promiscuous mode of an interface is disabled, run the following command:
$ ip link | grep PROMISCIs it the case that any network device is in promiscuous mode? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The system should not be acting as a network sniffer, which can
capture all traffic on the network to which it is connected. Run the following
to determine if any interface is running in promiscuous mode:
$ ip link | grep PROMISCPromiscuous mode of an interface can be disabled with the following command: $ sudo ip link set dev device_name multicast off promisc off |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80841-0: Prevent Login to Accounts With Empty Password | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | If an account is configured for password authentication but does not have an assigned password, it may be possible to log into the account without authentication. Remove any instances of the nullok in /etc/pam.d/system-auth and /etc/pam.d/password-auth to prevent logins with empty passwords. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that null passwords cannot be used, run the following command:
$ grep nullok /etc/pam.d/system-auth /etc/pam.d/password-authIf this produces any output, it may be possible to log into accounts with empty passwords. Remove any instances of the nullok option to prevent logins with empty passwords. Is it the case that NULL passwords can be used? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | If an account is configured for password authentication but does not have an assigned password, it may be possible to log into the account without authentication. Remove any instances of the nullok in /etc/pam.d/system-auth and /etc/pam.d/password-auth to prevent logins with empty passwords. | high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-85953-8: Ensure There Are No Accounts With Blank or Null Passwords | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Check the "/etc/shadow" file for blank passwords with the
following command:
$ sudo awk -F: '!$2 {print $1}' /etc/shadow
If the command returns any results, this is a finding.
Configure all accounts on the system to have a password or lock
the account with the following commands:
Perform a password reset:
$ sudo passwd [username]Lock an account: $ sudo passwd -l [username] |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that null passwords cannot be used, run the following command:
$ sudo awk -F: '!$2 {print $1}' /etc/shadow
If this produces any output, it may be possible to log into accounts
with empty passwords. Is it the case that Blank or NULL passwords can be used? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Check the "/etc/shadow" file for blank passwords with the
following command:
$ sudo awk -F: '!$2 {print $1}' /etc/shadow
If the command returns any results, this is a finding.
Configure all accounts on the system to have a password or lock
the account with the following commands:
Perform a password reset:
$ sudo passwd [username]Lock an account: $ sudo passwd -l [username] |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83499-4: Ensure All Files Are Owned by a User | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | If any files are not owned by a user, then the cause of their lack of ownership should be
investigated. Following this, the files should be deleted or assigned to an appropriate user.
Locate the mount points related to local devices by the following command:
$ findmnt -n -l -k -it $(awk '/nodev/ { print $2 }' /proc/filesystems | paste -sd,)
For all mount points listed by the previous command, it is necessary to search for files which
do not belong to a valid user using the following command:
$ sudo find MOUNTPOINT -xdev -nouser 2>/dev/null |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The following command will locate the mount points related to local devices:
$ findmnt -n -l -k -it $(awk '/nodev/ { print $2 }' /proc/filesystems | paste -sd,)
The following command will show files which do not belong to a valid user:
$ sudo find MOUNTPOINT -xdev -nouser 2>/dev/nullReplace MOUNTPOINT by the mount points listed by the fist command. No files without a valid user should be located. Is it the case that files exist that are not owned by a valid user? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | If any files are not owned by a user, then the cause of their lack of ownership should be
investigated. Following this, the files should be deleted or assigned to an appropriate user.
Locate the mount points related to local devices by the following command:
$ findmnt -n -l -k -it $(awk '/nodev/ { print $2 }' /proc/filesystems | paste -sd,)
For all mount points listed by the previous command, it is necessary to search for files which
do not belong to a valid user using the following command:
$ sudo find MOUNTPOINT -xdev -nouser 2>/dev/null |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84055-3: Remove Host-Based Authentication Files | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The shosts.equiv file lists remote hosts and users that are trusted by the local
system. To remove these files, run the following command to delete them from any location:
$ sudo rm /[path]/[to]/[file]/shosts.equiv |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that there are no shosts.equiv files on the system, run the following command:
$ find / -name shosts.equivIs it the case that shosts.equiv files exist? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The shosts.equiv file lists remote hosts and users that are trusted by the local
system. To remove these files, run the following command to delete them from any location:
$ sudo rm /[path]/[to]/[file]/shosts.equiv |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84056-1: Remove User Host-Based Authentication Files | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The ~/.shosts (in each user's home directory) files
list remote hosts and users that are trusted by the
local system. To remove these files, run the following command
to delete them from any location:
$ sudo find / -name '.shosts' -type f -delete |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that there are no .shosts files
on the system, run the following command:
$ sudo find / -name '.shosts'Is it the case that .shosts files exist? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The ~/.shosts (in each user's home directory) files
list remote hosts and users that are trusted by the
local system. To remove these files, run the following command
to delete them from any location:
$ sudo find / -name '.shosts' -type f -delete |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82998-6: Install firewalld Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the firewalld package is installed: $ rpm -q firewalldIs it the case that the package is not installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82943-2: Uninstall gssproxy Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The gssproxy package can be removed with the following command:
$ sudo yum erase gssproxy |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the gssproxy package is installed:
$ rpm -q gssproxyIs it the case that the package is installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The gssproxy package can be removed with the following command:
$ sudo yum erase gssproxy |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82946-5: Uninstall iprutils Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The iprutils package can be removed with the following command:
$ sudo yum erase iprutils |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the iprutils package is installed:
$ rpm -q iprutilsIs it the case that the package is installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The iprutils package can be removed with the following command:
$ sudo yum erase iprutils |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82976-2: Install policycoreutils Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The policycoreutils package can be installed with the following command:
$ sudo yum install policycoreutils |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the policycoreutils package is installed: $ rpm -q policycoreutilsIs it the case that the policycoreutils package is not installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The policycoreutils package can be installed with the following command:
$ sudo yum install policycoreutils |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82968-9: Install rng-tools Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The rng-tools package can be installed with the following command:
$ sudo yum install rng-tools |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the rng-tools package is installed: $ rpm -q rng-toolsIs it the case that the package is not installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The rng-tools package can be installed with the following command:
$ sudo yum install rng-tools |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82859-0: Ensure rsyslog-gnutls is installed | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | TLS protocol support for rsyslog is installed.
The rsyslog-gnutls package can be installed with the following command:
$ sudo yum install rsyslog-gnutls |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the rsyslog-gnutls package is installed:
$ rpm -q rsyslog-gnutlsIs it the case that the package is installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | TLS protocol support for rsyslog is installed.
The rsyslog-gnutls package can be installed with the following command:
$ sudo yum install rsyslog-gnutls |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80847-7: Ensure rsyslog is Installed | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Rsyslog is installed by default. The rsyslog package can be installed with the following command: $ sudo yum install rsyslog |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the rsyslog package is installed: $ rpm -q rsyslogIs it the case that the package is not installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Rsyslog is installed by default. The rsyslog package can be installed with the following command: $ sudo yum install rsyslog |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81039-0: Uninstall Sendmail Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Sendmail is not the default mail transfer agent and is
not installed by default.
The sendmail package can be removed with the following command:
$ sudo yum erase sendmail |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the sendmail package is installed:
$ rpm -q sendmailIs it the case that the package is installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Sendmail is not the default mail transfer agent and is
not installed by default.
The sendmail package can be removed with the following command:
$ sudo yum erase sendmail |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82436-7: Uninstall tftp-server Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The tftp-server package can be removed with the following command: $ sudo yum erase tftp-server |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the tftp-server package is installed:
$ rpm -q tftp-serverIs it the case that the package is installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The tftp-server package can be removed with the following command: $ sudo yum erase tftp-server |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82904-4: Uninstall tuned Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The tuned package can be removed with the following command:
$ sudo yum erase tuned |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the tuned package is installed:
$ rpm -q tunedIs it the case that the package is installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The tuned package can be removed with the following command:
$ sudo yum erase tuned |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82414-4: Uninstall vsftpd Package | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The vsftpd package can be removed with the following command: $ sudo yum erase vsftpd |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to determine if the vsftpd package is installed:
$ rpm -q vsftpdIs it the case that the package is installed? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The vsftpd package can be removed with the following command: $ sudo yum erase vsftpd |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81044-0: Ensure /home Located On Separate Partition | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | If user home directories will be stored locally, create a separate partition for /home at installation time (or migrate it later using LVM). If /home will be mounted from another system such as an NFS server, then creating a separate partition is not necessary at installation time, and the mountpoint can instead be configured later. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that a separate file system/partition has been created for /home with the following command:
$ mountpoint /homeIs it the case that "/home is not a mountpoint" is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | If user home directories will be stored locally, create a separate partition for /home at installation time (or migrate it later using LVM). If /home will be mounted from another system such as an NFS server, then creating a separate partition is not necessary at installation time, and the mountpoint can instead be configured later. | low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80851-9: Ensure /tmp Located On Separate Partition | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The /tmp directory is a world-writable directory used for temporary file storage. Ensure it has its own partition or logical volume at installation time, or migrate it using LVM. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that a separate file system/partition has been created for /tmp with the following command:
$ mountpoint /tmpIs it the case that "/tmp is not a mountpoint" is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The /tmp directory is a world-writable directory used for temporary file storage. Ensure it has its own partition or logical volume at installation time, or migrate it using LVM. | low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80852-7: Ensure /var Located On Separate Partition | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The /var directory is used by daemons and other system services to store frequently-changing data. Ensure that /var has its own partition or logical volume at installation time, or migrate it using LVM. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that a separate file system/partition has been created for /var with the following command:
$ mountpoint /varIs it the case that "/var is not a mountpoint" is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The /var directory is used by daemons and other system services to store frequently-changing data. Ensure that /var has its own partition or logical volume at installation time, or migrate it using LVM. | low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80853-5: Ensure /var/log Located On Separate Partition | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | System logs are stored in the /var/log directory.
Ensure that /var/log has its own partition or logical
volume at installation time, or migrate it using LVM. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that a separate file system/partition has been created for /var/log with the following command:
$ mountpoint /var/logIs it the case that "/var/log is not a mountpoint" is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | System logs are stored in the /var/log directory.
Ensure that /var/log has its own partition or logical
volume at installation time, or migrate it using LVM. |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80854-3: Ensure /var/log/audit Located On Separate Partition | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Audit logs are stored in the /var/log/audit directory.
Ensure that /var/log/audit has its own partition or logical
volume at installation time, or migrate it using LVM.
Make absolutely certain that it is large enough to store all
audit logs that will be created by the auditing daemon. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that a separate file system/partition has been created for /var/log/audit with the following command:
$ mountpoint /var/log/auditIs it the case that "/var/log/audit is not a mountpoint" is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Audit logs are stored in the /var/log/audit directory.
Ensure that /var/log/audit has its own partition or logical
volume at installation time, or migrate it using LVM.
Make absolutely certain that it is large enough to store all
audit logs that will be created by the auditing daemon. |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82730-3: Ensure /var/tmp Located On Separate Partition | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The /var/tmp directory is a world-writable directory used for temporary file storage. Ensure it has its own partition or logical volume at installation time, or migrate it using LVM. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that a separate file system/partition has been created for /var/tmp with the following command:
$ mountpoint /var/tmpIs it the case that "/var/tmp is not a mountpoint" is returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The /var/tmp directory is a world-writable directory used for temporary file storage. Ensure it has its own partition or logical volume at installation time, or migrate it using LVM. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84054-6: Prevent Unrestricted Mail Relaying | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Modify the /etc/postfix/main.cffile to restrict client connections to the local network with the following command: $ sudo postconf -e 'smtpd_client_restrictions = permit_mynetworks,reject' |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to prevent unrestricted mail relaying,
run the following command:
$ sudo postconf -n smtpd_client_restrictionsIs it the case that the "smtpd_client_restrictions" parameter contains any entries other than "permit_mynetworks" and "reject"? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Modify the /etc/postfix/main.cffile to restrict client connections to the local network with the following command: $ sudo postconf -e 'smtpd_client_restrictions = permit_mynetworks,reject' |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80859-2: Ensure cron Is Logging To Rsyslog | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Cron logging must be implemented to spot intrusions or trace
cron job status. If cron is not logging to rsyslog, it
can be implemented by adding the following to the RULES section of
/etc/rsyslog.conf:
If the legacy syntax is used:
cron.* /var/log/cronIf the modern syntax (RainerScript) is used: cron.* action(type="omfile" file="/var/log/cron") |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that cron is logging to rsyslog,
run the following command:
grep -rni "cron\.\*" /etc/rsyslog.* cron.* /var/log/cronor cron.* action(type="omfile" file="/var/log/cron")Is it the case that cron is not logging to rsyslog? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Cron logging must be implemented to spot intrusions or trace
cron job status. If cron is not logging to rsyslog, it
can be implemented by adding the following to the RULES section of
/etc/rsyslog.conf:
If the legacy syntax is used:
cron.* /var/log/cronIf the modern syntax (RainerScript) is used: cron.* action(type="omfile" file="/var/log/cron") |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80863-4: Ensure Logs Sent To Remote Host | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To configure rsyslog to send logs to a remote log server,
open /etc/rsyslog.conf and read and understand the last section of the file,
which describes the multiple directives necessary to activate remote
logging.
Along with these other directives, the system can be configured
to forward its logs to a particular log server by
adding or correcting one of the following lines,
substituting appropriately.
The choice of protocol depends on the environment of the system;
although TCP and RELP provide more reliable message delivery,
they may not be supported in all environments.
To use UDP for log message delivery: *.* @ To use TCP for log message delivery: *.* @@ To use RELP for log message delivery: *.* :omrelp: There must be a resolvable DNS CNAME or Alias record set to "" for logs to be sent correctly to the centralized logging utility. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To ensure logs are sent to a remote host, examine the file
/etc/rsyslog.conf.
If using UDP, a line similar to the following should be present:
*.* @If using TCP, a line similar to the following should be present: *.* @@If using RELP, a line similar to the following should be present: *.* :omrelp:Is it the case that no evidence that the audit logs are being off-loaded to another system or media? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To configure rsyslog to send logs to a remote log server,
open /etc/rsyslog.conf and read and understand the last section of the file,
which describes the multiple directives necessary to activate remote
logging.
Along with these other directives, the system can be configured
to forward its logs to a particular log server by
adding or correcting one of the following lines,
substituting appropriately.
The choice of protocol depends on the environment of the system;
although TCP and RELP provide more reliable message delivery,
they may not be supported in all environments.
To use UDP for log message delivery: *.* @ To use TCP for log message delivery: *.* @@ To use RELP for log message delivery: *.* :omrelp: There must be a resolvable DNS CNAME or Alias record set to "" for logs to be sent correctly to the centralized logging utility. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80865-9: Ensure Software Patches Installed | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. |
If the system is joined to the Red Hat Network, a Red Hat Satellite Server,
or a yum server, run the following command to install updates:
$ sudo yum updateIf the system is not configured to use one of these sources, updates (in the form of RPM packages) can be manually downloaded from the Red Hat Network and installed using rpm. NOTE: U.S. Defense systems are required to be patched within 30 days or sooner as local policy dictates. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify Red Hat Enterprise Linux 8 security patches and updates are installed and up to date. Updates are required to be applied with a frequency determined by organizational policy. Obtain the list of available package security updates from Red Hat. The URL for updates is https://access.redhat.com/errata-search/. It is important to note that updates provided by Red Hat may not be present on the system if the underlying packages are not installed. Check that the available package security updates have been installed on the system with the following command: $ sudo yum history list | more Loaded plugins: langpacks, product-id, subscription-manager ID | Command line | Date and time | Action(s) | Altered ------------------------------------------------------------------------------- 70 | install aide | 2020-03-05 10:58 | Install | 1 69 | update -y | 2020-03-04 14:34 | Update | 18 EE 68 | install vlc | 2020-02-21 17:12 | Install | 21 67 | update -y | 2020-02-21 17:04 | Update | 7 EE Typical update frequency may be overridden by Information Assurance Vulnerability Alert (IAVA) notifications from CYBERCOM. Is it the case that Red Hat Enterprise Linux 8 is in non-compliance with the organizational patching policy? | Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. |
If the system is joined to the Red Hat Network, a Red Hat Satellite Server,
or a yum server, run the following command to install updates:
$ sudo yum updateIf the system is not configured to use one of these sources, updates (in the form of RPM packages) can be manually downloaded from the Red Hat Network and installed using rpm. NOTE: U.S. Defense systems are required to be patched within 30 days or sooner as local policy dictates. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80873-3: Disable the Automounter | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The autofs daemon mounts and unmounts filesystems, such as user
home directories shared via NFS, on demand. In addition, autofs can be used to handle
removable media, and the default configuration provides the cdrom device as /misc/cd.
However, this method of providing access to removable media is not common, so autofs
can almost always be disabled if NFS is not in use. Even if NFS is required, it may be
possible to configure filesystem mounts statically by editing /etc/fstab
rather than relying on the automounter.
The autofs service can be disabled with the following command:
$ sudo systemctl mask --now autofs.service |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To check that the autofs service is disabled in system boot configuration,
run the following command:
$ sudo systemctl is-enabled
Output should indicate the autofs service has either not been installed,
or has been disabled at all runlevels, as shown in the example below:
$ sudo systemctl is-enabledRun the following command to verify autofs is not active (i.e. not running) through current runtime configuration:
$ sudo systemctl is-active autofsIf the service is not running the command will return the following output: inactiveThe service will also be masked, to check that the autofs is masked, run the following command:
$ sudo systemctl show
If the service is masked the command will return the following outputs:
LoadState=masked UnitFileState=maskedIs it the case that the "autofs" is loaded and not masked? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The autofs daemon mounts and unmounts filesystems, such as user
home directories shared via NFS, on demand. In addition, autofs can be used to handle
removable media, and the default configuration provides the cdrom device as /misc/cd.
However, this method of providing access to removable media is not common, so autofs
can almost always be disabled if NFS is not in use. Even if NFS is required, it may be
possible to configure filesystem mounts statically by editing /etc/fstab
rather than relying on the automounter.
The autofs service can be disabled with the following command:
$ sudo systemctl mask --now autofs.service |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80876-6: Disable debug-shell SystemD Service | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | SystemD's debug-shell service is intended to
diagnose SystemD related boot issues with various systemctl
commands. Once enabled and following a system reboot, the root shell
will be available on tty9 which is access by pressing
CTRL-ALT-F9. The debug-shell service should only be used
for SystemD related issues and should otherwise be disabled.
By default, the debug-shell SystemD service is already disabled. The debug-shell service can be disabled with the following command:
$ sudo systemctl mask --now debug-shell.service |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To check that the debug-shell service is disabled in system boot configuration,
run the following command:
$ sudo systemctl is-enabled
Output should indicate the debug-shell service has either not been installed,
or has been disabled at all runlevels, as shown in the example below:
$ sudo systemctl is-enabledRun the following command to verify debug-shell is not active (i.e. not running) through current runtime configuration:
$ sudo systemctl is-active debug-shellIf the service is not running the command will return the following output: inactiveThe service will also be masked, to check that the debug-shell is masked, run the following command:
$ sudo systemctl show
If the service is masked the command will return the following outputs:
LoadState=masked UnitFileState=maskedIs it the case that the "debug-shell" is loaded and not masked? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | SystemD's debug-shell service is intended to
diagnose SystemD related boot issues with various systemctl
commands. Once enabled and following a system reboot, the root shell
will be available on tty9 which is access by pressing
CTRL-ALT-F9. The debug-shell service should only be used
for SystemD related issues and should otherwise be disabled.
By default, the debug-shell SystemD service is already disabled. The debug-shell service can be disabled with the following command:
$ sudo systemctl mask --now debug-shell.service |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80877-4: Verify firewalld Enabled | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. |
The firewalld service can be enabled with the following command:
$ sudo systemctl enable firewalld.service |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. |
Run the following command to determine the current status of the
firewalld service:
$ sudo systemctl is-active firewalldIf the service is running, it should return the following: activeIs it the case that the "firewalld" service is disabled, masked, or not started.? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. |
The firewalld service can be enabled with the following command:
$ sudo systemctl enable firewalld.service |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80878-2: Disable KDump Kernel Crash Analyzer (kdump) | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The kdump service provides a kernel crash dump analyzer. It uses the kexec
system call to boot a secondary kernel ("capture" kernel) following a system
crash, which can load information from the crashed kernel for analysis.
The kdump service can be disabled with the following command:
$ sudo systemctl mask --now kdump.service |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To check that the kdump service is disabled in system boot configuration,
run the following command:
$ sudo systemctl is-enabled
Output should indicate the kdump service has either not been installed,
or has been disabled at all runlevels, as shown in the example below:
$ sudo systemctl is-enabledRun the following command to verify kdump is not active (i.e. not running) through current runtime configuration:
$ sudo systemctl is-active kdumpIf the service is not running the command will return the following output: inactiveThe service will also be masked, to check that the kdump is masked, run the following command:
$ sudo systemctl show
If the service is masked the command will return the following outputs:
LoadState=masked UnitFileState=maskedIs it the case that the "kdump" is loaded and not masked? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The kdump service provides a kernel crash dump analyzer. It uses the kexec
system call to boot a secondary kernel ("capture" kernel) following a system
crash, which can load information from the crashed kernel for analysis.
The kdump service can be disabled with the following command:
$ sudo systemctl mask --now kdump.service |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82831-9: Enable the Hardware RNG Entropy Gatherer Service | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The Hardware RNG Entropy Gatherer service should be enabled.
The rngd service can be enabled with the following command:
$ sudo systemctl enable rngd.service |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. |
Run the following command to determine the current status of the
rngd service:
$ sudo systemctl is-active rngdIf the service is running, it should return the following: activeIs it the case that the "rngd" service is disabled, masked, or not started.? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The Hardware RNG Entropy Gatherer service should be enabled.
The rngd service can be enabled with the following command:
$ sudo systemctl enable rngd.service |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80886-5: Enable rsyslog Service | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The rsyslog service provides syslog-style logging by default on Red Hat Enterprise Linux 8.
The rsyslog service can be enabled with the following command:
$ sudo systemctl enable rsyslog.service |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. |
Run the following command to determine the current status of the
rsyslog service:
$ sudo systemctl is-active rsyslogIf the service is running, it should return the following: activeIs it the case that the "rsyslog" service is disabled, masked, or not started.? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The rsyslog service provides syslog-style logging by default on Red Hat Enterprise Linux 8.
The rsyslog service can be enabled with the following command:
$ sudo systemctl enable rsyslog.service |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82881-4: Disable acquiring, saving, and processing core dumps | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The systemd-coredump.socket unit is a socket activation of the systemd-coredump@.service which processes core dumps. By masking the unit, core dump processing is disabled. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To verify that acquiring, saving, and processing core dumps is disabled, run the
following command:
$ systemctl status systemd-coredump.socketThe output should be similar to: â—Ź systemd-coredump.socket Loaded: masked (Reason: Unit systemd-coredump.socket is masked.) Active: inactive (dead) ...Is it the case that unit systemd-coredump.socket is not masked or running? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The systemd-coredump.socket unit is a socket activation of the systemd-coredump@.service which processes core dumps. By masking the unit, core dump processing is disabled. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80890-7: Set Default firewalld Zone for Incoming Packets | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the default zone to drop for
the built-in default zone which processes incoming IPv4 and IPv6 packets,
modify the following line in
/etc/firewalld/firewalld.conf to be:
DefaultZone=drop |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Inspect the file /etc/firewalld/firewalld.conf to determine
the default zone for the firewalld. It should be set to DefaultZone=drop:
$ sudo grep DefaultZone /etc/firewalld/firewalld.confIs it the case that the default zone is not set to DROP? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the default zone to drop for
the built-in default zone which processes incoming IPv4 and IPv6 packets,
modify the following line in
/etc/firewalld/firewalld.conf to be:
DefaultZone=drop |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80896-4: Disable SSH Access via Empty Passwords | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Disallow SSH login with empty passwords.
The default SSH configuration disables logins with empty passwords. The appropriate
configuration is used if no value is set for PermitEmptyPasswords.
To explicitly disallow SSH login from accounts with empty passwords, add or correct the following line in /etc/ssh/sshd_config: PermitEmptyPasswords noAny accounts with empty passwords should be disabled immediately, and PAM configuration should prevent users from being able to assign themselves empty passwords. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's PermitEmptyPasswords option is set, run the following command:
$ sudo grep -i PermitEmptyPasswords /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Disallow SSH login with empty passwords.
The default SSH configuration disables logins with empty passwords. The appropriate
configuration is used if no value is set for PermitEmptyPasswords.
To explicitly disallow SSH login from accounts with empty passwords, add or correct the following line in /etc/ssh/sshd_config: PermitEmptyPasswords noAny accounts with empty passwords should be disabled immediately, and PAM configuration should prevent users from being able to assign themselves empty passwords. |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80897-2: Disable GSSAPI Authentication | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Unless needed, SSH should not permit extraneous or unnecessary
authentication mechanisms like GSSAPI.
The default SSH configuration disallows authentications based on GSSAPI. The appropriate configuration is used if no value is set for GSSAPIAuthentication. To explicitly disable GSSAPI authentication, add or correct the following line in /etc/ssh/sshd_config: GSSAPIAuthentication no |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's GSSAPIAuthentication option is set, run the following command:
$ sudo grep -i GSSAPIAuthentication /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Unless needed, SSH should not permit extraneous or unnecessary
authentication mechanisms like GSSAPI.
The default SSH configuration disallows authentications based on GSSAPI. The appropriate configuration is used if no value is set for GSSAPIAuthentication. To explicitly disable GSSAPI authentication, add or correct the following line in /etc/ssh/sshd_config: GSSAPIAuthentication no |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80898-0: Disable Kerberos Authentication | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Unless needed, SSH should not permit extraneous or unnecessary
authentication mechanisms like Kerberos.
The default SSH configuration disallows authentication validation through Kerberos. The appropriate configuration is used if no value is set for KerberosAuthentication. To explicitly disable Kerberos authentication, add or correct the following line in /etc/ssh/sshd_config: KerberosAuthentication no |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's KerberosAuthentication option is set, run the following command:
$ sudo grep -i KerberosAuthentication /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Unless needed, SSH should not permit extraneous or unnecessary
authentication mechanisms like Kerberos.
The default SSH configuration disallows authentication validation through Kerberos. The appropriate configuration is used if no value is set for KerberosAuthentication. To explicitly disable Kerberos authentication, add or correct the following line in /etc/ssh/sshd_config: KerberosAuthentication no |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80901-2: Disable SSH Root Login | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The root user should never be allowed to login to a
system directly over a network.
To disable root login via SSH, add or correct the following line in
/etc/ssh/sshd_config:
PermitRootLogin no |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's PermitRootLogin option is set, run the following command:
$ sudo grep -i PermitRootLogin /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The root user should never be allowed to login to a
system directly over a network.
To disable root login via SSH, add or correct the following line in
/etc/ssh/sshd_config:
PermitRootLogin no |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80902-0: Disable SSH Support for User Known Hosts | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | SSH can allow system users to connect to systems if a cache of the remote
systems public keys is available. This should be disabled.
To ensure this behavior is disabled, add or correct the following line in /etc/ssh/sshd_config: IgnoreUserKnownHosts yes |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's IgnoreUserKnownHosts option is set, run the following command:
$ sudo grep -i IgnoreUserKnownHosts /etc/ssh/sshd_configIf a line indicating yes is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | SSH can allow system users to connect to systems if a cache of the remote
systems public keys is available. This should be disabled.
To ensure this behavior is disabled, add or correct the following line in /etc/ssh/sshd_config: IgnoreUserKnownHosts yes |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83360-8: Disable X11 Forwarding | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The X11Forwarding parameter provides the ability to tunnel X11 traffic
through the connection to enable remote graphic connections.
SSH has the capability to encrypt remote X11 connections when SSH's
X11Forwarding option is enabled.
The default SSH configuration disables X11Forwarding. The appropriate configuration is used if no value is set for X11Forwarding. To explicitly disable X11 Forwarding, add or correct the following line in /etc/ssh/sshd_config: X11Forwarding no |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's X11Forwarding option is set, run the following command:
$ sudo grep -i X11Forwarding /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The X11Forwarding parameter provides the ability to tunnel X11 traffic
through the connection to enable remote graphic connections.
SSH has the capability to encrypt remote X11 connections when SSH's
X11Forwarding option is enabled.
The default SSH configuration disables X11Forwarding. The appropriate configuration is used if no value is set for X11Forwarding. To explicitly disable X11 Forwarding, add or correct the following line in /etc/ssh/sshd_config: X11Forwarding no |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80904-6: Enable Use of Strict Mode Checking | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | SSHs StrictModes option checks file and ownership permissions in
the user's home directory .ssh folder before accepting login. If world-
writable permissions are found, logon is rejected.
The default SSH configuration has StrictModes enabled. The appropriate configuration is used if no value is set for StrictModes. To explicitly enable StrictModes in SSH, add or correct the following line in /etc/ssh/sshd_config: StrictModes yes |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's StrictModes option is set, run the following command:
$ sudo grep -i StrictModes /etc/ssh/sshd_configIf a line indicating yes is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | SSHs StrictModes option checks file and ownership permissions in
the user's home directory .ssh folder before accepting login. If world-
writable permissions are found, logon is rejected.
The default SSH configuration has StrictModes enabled. The appropriate configuration is used if no value is set for StrictModes. To explicitly enable StrictModes in SSH, add or correct the following line in /etc/ssh/sshd_config: StrictModes yes |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82281-7: Enable SSH Print Last Log | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Ensure that SSH will display the date and time of the last successful account logon.
The default SSH configuration enables print of the date and time of the last login. The appropriate configuration is used if no value is set for PrintLastLog. To explicitly enable LastLog in SSH, add or correct the following line in /etc/ssh/sshd_config: PrintLastLog yes |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's PrintLastLog option is set, run the following command:
$ sudo grep -i PrintLastLog /etc/ssh/sshd_configIf a line indicating yes is returned, then the required value is set. Is it the case that the required value is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Ensure that SSH will display the date and time of the last successful account logon.
The default SSH configuration enables print of the date and time of the last login. The appropriate configuration is used if no value is set for PrintLastLog. To explicitly enable LastLog in SSH, add or correct the following line in /etc/ssh/sshd_config: PrintLastLog yes |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82177-7: Force frequent session key renegotiation | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The RekeyLimit parameter specifies how often
the session key of the is renegotiated, both in terms of
amount of data that may be transmitted and the time
elapsed. To decrease the default limits, add or correct the following line in /etc/ssh/sshd_config: RekeyLimit |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To check if RekeyLimit is set correctly, run the
following command:
$ sudo grep RekeyLimit /etc/ssh/sshd_configIf configured properly, output should be RekeyLimitIs it the case that it is commented out or is not set? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The RekeyLimit parameter specifies how often
the session key of the is renegotiated, both in terms of
amount of data that may be transmitted and the time
elapsed. To decrease the default limits, add or correct the following line in /etc/ssh/sshd_config: RekeyLimit |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82462-3: SSH server uses strong entropy to seed | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set up SSH server to use entropy from a high-quality source, edit the /etc/sysconfig/sshd file.
The SSH_USE_STRONG_RNG configuration value determines how many bytes of entropy to use, so
make sure that the file contains line
SSH_USE_STRONG_RNG=32 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine whether the SSH service is configured to use strong entropy seed,
run $ sudo grep SSH_USE_STRONG_RNG /etc/sysconfig/sshdIf a line indicating that SSH_USE_STRONG_RNG is set to 32 is returned, then the option is set correctly. Is it the case that the SSH_USE_STRONG_RNG is not set to 32 in /etc/sysconfig/sshd? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set up SSH server to use entropy from a high-quality source, edit the /etc/sysconfig/sshd file.
The SSH_USE_STRONG_RNG configuration value determines how many bytes of entropy to use, so
make sure that the file contains line
SSH_USE_STRONG_RNG=32 |
low | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-84058-7: Prevent remote hosts from connecting to the proxy display | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The SSH daemon should prevent remote hosts from connecting to the proxy
display.
The default SSH configuration for X11UseLocalhost is yes, which prevents remote hosts from connecting to the proxy display. To explicitly prevent remote connections to the proxy display, add or correct the following line in /etc/ssh/sshd_config: X11UseLocalhost yes |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine how the SSH daemon's X11UseLocalhost option is set, run the following command:
$ sudo grep -i X11UseLocalhost /etc/ssh/sshd_configIf a line indicating yes is returned, then the required value is set. Is it the case that the display proxy is listening on wildcard address? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The SSH daemon should prevent remote hosts from connecting to the proxy
display.
The default SSH configuration for X11UseLocalhost is yes, which prevents remote hosts from connecting to the proxy display. To explicitly prevent remote connections to the proxy display, add or correct the following line in /etc/ssh/sshd_config: X11UseLocalhost yes |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83425-9: The operating system must restrict privilege elevation to authorized personnel | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The sudo command allows a user to execute programs with elevated (administrator) privileges. It prompts the user for their password and confirms your request to execute a command by checking a file, called sudoers. Restrict privileged actions by removing the following entries from the sudoers file: ALL ALL=(ALL) ALL ALL ALL=(ALL:ALL) ALL | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Determine if "sudoers" file restricts sudo access run the following commands:
$ sudo grep -PR '^\s*ALL\s+ALL\=\(ALL\)\s+ALL\s*$' /etc/sudoers /etc/sudoers.d/* $ sudo grep -PR '^\s*ALL\s+ALL\=\(ALL\:ALL\)\s+ALL\s*$' /etc/sudoers /etc/sudoers.d/*Is it the case that either of the commands returned a line? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The sudo command allows a user to execute programs with elevated (administrator) privileges. It prompts the user for their password and confirms your request to execute a command by checking a file, called sudoers. Restrict privileged actions by removing the following entries from the sudoers file: ALL ALL=(ALL) ALL ALL ALL=(ALL:ALL) ALL | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-86377-9: Ensure sudo only includes the default configuration directory | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Administrators can configure authorized sudo users via drop-in files, and it is possible to include other directories and configuration files from the file currently being parsed. Make sure that /etc/sudoers only includes drop-in configuration files from /etc/sudoers.d, or that no drop-in file is included. Either the /etc/sudoers should contain only one #includedir directive pointing to /etc/sudoers.d, and no file in /etc/sudoers.d/ should include other files or directories; Or the /etc/sudoers should not contain any #include, @include, #includedir or @includedir directives. Note that the '#' character doesn't denote a comment in the configuration file. | Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To determine whether sudo command includes configuration files from the appropriate directory,
run the following command:
$ sudo grep -rP '^[#@]include(dir)?' /etc/sudoers /etc/sudoers.dIf only the line /etc/sudoers:#includedir /etc/sudoers.d is returned, then the drop-in include configuration is set correctly. Any other line returned is a finding. Is it the case that the /etc/sudoers doesn't include /etc/sudores.d or includes other directories?? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Administrators can configure authorized sudo users via drop-in files, and it is possible to include other directories and configuration files from the file currently being parsed. Make sure that /etc/sudoers only includes drop-in configuration files from /etc/sudoers.d, or that no drop-in file is included. Either the /etc/sudoers should contain only one #includedir directive pointing to /etc/sudoers.d, and no file in /etc/sudoers.d/ should include other files or directories; Or the /etc/sudoers should not contain any #include, @include, #includedir or @includedir directives. Note that the '#' character doesn't denote a comment in the configuration file. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83422-6: Ensure invoking users password for privilege escalation when using sudo | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | The sudoers security policy requires that users authenticate themselves before they can use sudo.
When sudoers requires authentication, it validates the invoking user's credentials.
The expected output for:
sudo cvtsudoers -f sudoers /etc/sudoers | grep -E '^Defaults !?(rootpw|targetpw|runaspw)$' Defaults !targetpw
Defaults !rootpw
Defaults !runaspw
or if cvtsudoers not supported:
sudo find /etc/sudoers /etc/sudoers.d \( \! -name '*~' -a \! -name '*.*' \) -exec grep -E --with-filename '^[[:blank:]]*Defaults[[:blank:]](.*[[:blank:]])?!?\b(rootpw|targetpw|runaspw)' -- {} \;
/etc/sudoers:Defaults !targetpw
/etc/sudoers:Defaults !rootpw
/etc/sudoers:Defaults !runaspw |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Run the following command to Verify that the sudoers security policy is configured to use the invoking user's password for privilege escalation:
sudo cvtsudoers -f sudoers /etc/sudoers | grep -E '^Defaults !?(rootpw|targetpw|runaspw)'or if cvtsudoers not supported: sudo find /etc/sudoers /etc/sudoers.d \( \! -name '*~' -a \! -name '*.*' \) -exec grep -E --with-filename '^[[:blank:]]*Defaults[[:blank:]](.*[[:blank:]])?!?\b(rootpw|targetpw|runaspw)' -- {} \;
If no results are returned, this is a finding.
If conflicting results are returned, this is a finding.
If "Defaults !targetpw" is not defined, this is a finding.
If "Defaults !rootpw" is not defined, this is a finding.
If "Defaults !runaspw" is not defined, this is a finding. Is it the case that invoke user passwd when using sudo? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | The sudoers security policy requires that users authenticate themselves before they can use sudo.
When sudoers requires authentication, it validates the invoking user's credentials.
The expected output for:
sudo cvtsudoers -f sudoers /etc/sudoers | grep -E '^Defaults !?(rootpw|targetpw|runaspw)$' Defaults !targetpw
Defaults !rootpw
Defaults !runaspw
or if cvtsudoers not supported:
sudo find /etc/sudoers /etc/sudoers.d \( \! -name '*~' -a \! -name '*.*' \) -exec grep -E --with-filename '^[[:blank:]]*Defaults[[:blank:]](.*[[:blank:]])?!?\b(rootpw|targetpw|runaspw)' -- {} \;
/etc/sudoers:Defaults !targetpw
/etc/sudoers:Defaults !rootpw
/etc/sudoers:Defaults !runaspw |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82215-5: Disable storing core dumps | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the kernel.core_pattern kernel parameter, run the following command: $ sudo sysctl -w kernel.core_pattern=|/bin/falseTo make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.core_pattern = |/bin/false |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the kernel.core_pattern kernel parameter can be queried
by running the following command:
$ sysctl kernel.core_pattern |/bin/false.
Is it the case that the returned line does not have a value of "|/bin/false", or a line is not
returned and the need for core dumps is not documented with the Information
System Security Officer (ISSO) as an operational requirement? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the kernel.core_pattern kernel parameter, run the following command: $ sudo sysctl -w kernel.core_pattern=|/bin/falseTo make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.core_pattern = |/bin/false |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80952-5: Disable Kernel Image Loading | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the kernel.kexec_load_disabled kernel parameter, run the following command: $ sudo sysctl -w kernel.kexec_load_disabled=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kexec_load_disabled = 1 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the kernel.kexec_load_disabled kernel parameter can be queried
by running the following command:
$ sysctl kernel.kexec_load_disabled 1.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the kernel.kexec_load_disabled kernel parameter, run the following command: $ sudo sysctl -w kernel.kexec_load_disabled=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kexec_load_disabled = 1 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80915-2: Restrict Exposed Kernel Pointer Addresses Access | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the kernel.kptr_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.kptr_restrict=To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kptr_restrict = |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the kernel.kptr_restrict kernel parameter can be queried
by running the following command:
$ sysctl kernel.kptr_restrictThe output of the command should indicate either: kernel.kptr_restrict = 1
or:
kernel.kptr_restrict = 2
The output of the command should not indicate:
kernel.kptr_restrict = 0
The preferable way how to assure the runtime compliance is to have
correct persistent configuration, and rebooting the system.
The persistent kernel parameter configuration is performed by specifying the appropriate
assignment in any file located in the /etc/sysctl.ddirectory. Verify that there is not any existing incorrect configuration by executing the following command: $ grep -r '^\s*kernel.kptr_restrict\s*=' /etc/sysctl.conf /etc/sysctl.dThe command should not find any assignments other than: kernel.kptr_restrict = 1 or: kernel.kptr_restrict = 2 Conflicting assignments are not allowed. Is it the case that the kernel.kptr_restrict is not set to 1 or 2 or is configured to be 0? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the kernel.kptr_restrict kernel parameter, run the following command: $ sudo sysctl -w kernel.kptr_restrict=To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.kptr_restrict = |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80916-0: Enable Randomized Layout of Virtual Address Space | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the kernel.randomize_va_space kernel parameter, run the following command: $ sudo sysctl -w kernel.randomize_va_space=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.randomize_va_space = 2 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the kernel.randomize_va_space kernel parameter can be queried
by running the following command:
$ sysctl kernel.randomize_va_space 2.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the kernel.randomize_va_space kernel parameter, run the following command: $ sudo sysctl -w kernel.randomize_va_space=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.randomize_va_space = 2 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82974-7: Disable Access to Network bpf() Syscall From Unprivileged Processes | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the kernel.unprivileged_bpf_disabled kernel parameter, run the following command: $ sudo sysctl -w kernel.unprivileged_bpf_disabled=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.unprivileged_bpf_disabled = 1 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the kernel.unprivileged_bpf_disabled kernel parameter can be queried
by running the following command:
$ sysctl kernel.unprivileged_bpf_disabled 1.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the kernel.unprivileged_bpf_disabled kernel parameter, run the following command: $ sudo sysctl -w kernel.unprivileged_bpf_disabled=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.unprivileged_bpf_disabled = 1 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80953-3: Restrict usage of ptrace to descendant processes | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the kernel.yama.ptrace_scope kernel parameter, run the following command: $ sudo sysctl -w kernel.yama.ptrace_scope=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.yama.ptrace_scope = 1 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the kernel.yama.ptrace_scope kernel parameter can be queried
by running the following command:
$ sysctl kernel.yama.ptrace_scope 1.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the kernel.yama.ptrace_scope kernel parameter, run the following command: $ sudo sysctl -w kernel.yama.ptrace_scope=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: kernel.yama.ptrace_scope = 1 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82934-1: Harden the operation of the BPF just-in-time compiler | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.core.bpf_jit_harden kernel parameter, run the following command: $ sudo sysctl -w net.core.bpf_jit_harden=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.core.bpf_jit_harden = 2 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.core.bpf_jit_harden kernel parameter can be queried
by running the following command:
$ sysctl net.core.bpf_jit_harden 2.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.core.bpf_jit_harden kernel parameter, run the following command: $ sudo sysctl -w net.core.bpf_jit_harden=2To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.core.bpf_jit_harden = 2 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80917-8: Disable Accepting ICMP Redirects for All IPv4 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.conf.all.accept_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.accept_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.accept_redirects = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.conf.all.accept_redirects kernel parameter can be queried
by running the following command:
$ sysctl net.ipv4.conf.all.accept_redirects 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.conf.all.accept_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.accept_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.accept_redirects = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81011-9: Disable Kernel Parameter for Accepting Source-Routed Packets on all IPv4 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.conf.all.accept_source_route kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.accept_source_route=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.accept_source_route = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.conf.all.accept_source_route kernel parameter can be queried
by running the following command:
$ sysctl net.ipv4.conf.all.accept_source_route 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.conf.all.accept_source_route kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.accept_source_route=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.accept_source_route = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-86220-1: Disable Kernel Parameter for IPv4 Forwarding on all IPv4 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.conf.all.forwarding kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.forwarding=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.forwarding = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.conf.all.forwarding kernel parameter can be queried
by running the following command:
$ sysctl net.ipv4.conf.all.forwarding 0.
The ability to forward packets is only appropriate for routers. Is it the case that IP forwarding value is "1" and the system is not router? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.conf.all.forwarding kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.forwarding=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.forwarding = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81021-8: Enable Kernel Parameter to Use Reverse Path Filtering on all IPv4 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.conf.all.rp_filter kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.rp_filter=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.rp_filter = 1 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.conf.all.rp_filter parameter can be queried
by running the following command:
$ sysctl net.ipv4.conf.all.rp_filterThe output of the command should indicate either: net.ipv4.conf.all.rp_filter = 1
or:
net.ipv4.conf.all.rp_filter = 2
The output of the command should not indicate:
net.ipv4.conf.all.rp_filter = 0
The preferable way how to assure the runtime compliance is to have
correct persistent configuration, and rebooting the system.
The persistent sysctl parameter configuration is performed by specifying the appropriate
assignment in any file located in the /etc/sysctl.ddirectory. Verify that there is not any existing incorrect configuration by executing the following command: $ grep -r '^\s*net.ipv4.conf.all.rp_filter\s*=' /etc/sysctl.conf /etc/sysctl.dThe command should not find any assignments other than: net.ipv4.conf.all.rp_filter = 1 or: net.ipv4.conf.all.rp_filter = 2 Conflicting assignments are not allowed. Is it the case that the net.ipv4.conf.all.rp_filter is not set to 1 or 2 or is configured to be 0? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.conf.all.rp_filter kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.rp_filter=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.rp_filter = 1 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80918-6: Disable Kernel Parameter for Sending ICMP Redirects on all IPv4 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.conf.all.send_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.send_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.send_redirects = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.conf.all.send_redirects kernel parameter can be queried
by running the following command:
$ sysctl net.ipv4.conf.all.send_redirects 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.conf.all.send_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.all.send_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.all.send_redirects = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80919-4: Disable Kernel Parameter for Accepting ICMP Redirects by Default on IPv4 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.conf.default.accept_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.default.accept_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.default.accept_redirects = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.conf.default.accept_redirects kernel parameter can be queried
by running the following command:
$ sysctl net.ipv4.conf.default.accept_redirects 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.conf.default.accept_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.default.accept_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.default.accept_redirects = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80920-2: Disable Kernel Parameter for Accepting Source-Routed Packets on IPv4 Interfaces by Default | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.conf.default.accept_source_route kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.default.accept_source_route=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.default.accept_source_route = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.conf.default.accept_source_route kernel parameter can be queried
by running the following command:
$ sysctl net.ipv4.conf.default.accept_source_route 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.conf.default.accept_source_route kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.default.accept_source_route=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.default.accept_source_route = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80921-0: Disable Kernel Parameter for Sending ICMP Redirects on all IPv4 Interfaces by Default | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.conf.default.send_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.default.send_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.default.send_redirects = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.conf.default.send_redirects kernel parameter can be queried
by running the following command:
$ sysctl net.ipv4.conf.default.send_redirects 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.conf.default.send_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.conf.default.send_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.conf.default.send_redirects = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-80922-8: Enable Kernel Parameter to Ignore ICMP Broadcast Echo Requests on IPv4 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv4.icmp_echo_ignore_broadcasts kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.icmp_echo_ignore_broadcasts=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.icmp_echo_ignore_broadcasts = 1 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv4.icmp_echo_ignore_broadcasts kernel parameter can be queried
by running the following command:
$ sysctl net.ipv4.icmp_echo_ignore_broadcasts 1.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv4.icmp_echo_ignore_broadcasts kernel parameter, run the following command: $ sudo sysctl -w net.ipv4.icmp_echo_ignore_broadcasts=1To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv4.icmp_echo_ignore_broadcasts = 1 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81006-9: Configure Accepting Router Advertisements on All IPv6 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv6.conf.all.accept_ra kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.all.accept_ra=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.all.accept_ra = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv6.conf.all.accept_ra kernel parameter can be queried
by running the following command:
$ sysctl net.ipv6.conf.all.accept_ra 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv6.conf.all.accept_ra kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.all.accept_ra=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.all.accept_ra = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81009-3: Disable Accepting ICMP Redirects for All IPv6 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv6.conf.all.accept_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.all.accept_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.all.accept_redirects = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv6.conf.all.accept_redirects kernel parameter can be queried
by running the following command:
$ sysctl net.ipv6.conf.all.accept_redirects 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv6.conf.all.accept_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.all.accept_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.all.accept_redirects = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81013-5: Disable Kernel Parameter for Accepting Source-Routed Packets on all IPv6 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv6.conf.all.accept_source_route kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.all.accept_source_route=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.all.accept_source_route = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv6.conf.all.accept_source_route kernel parameter can be queried
by running the following command:
$ sysctl net.ipv6.conf.all.accept_source_route 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv6.conf.all.accept_source_route kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.all.accept_source_route=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.all.accept_source_route = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82863-2: Disable Kernel Parameter for IPv6 Forwarding | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv6.conf.all.forwarding kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.all.forwarding=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.all.forwarding = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv6.conf.all.forwarding kernel parameter can be queried
by running the following command:
$ sysctl net.ipv6.conf.all.forwarding 0.
The ability to forward packets is only appropriate for routers. Is it the case that IP forwarding value is "1" and the system is not router? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv6.conf.all.forwarding kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.all.forwarding=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.all.forwarding = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81007-7: Disable Accepting Router Advertisements on all IPv6 Interfaces by Default | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv6.conf.default.accept_ra kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.default.accept_ra=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.default.accept_ra = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv6.conf.default.accept_ra kernel parameter can be queried
by running the following command:
$ sysctl net.ipv6.conf.default.accept_ra 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv6.conf.default.accept_ra kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.default.accept_ra=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.default.accept_ra = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81010-1: Disable Kernel Parameter for Accepting ICMP Redirects by Default on IPv6 Interfaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv6.conf.default.accept_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.default.accept_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.default.accept_redirects = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv6.conf.default.accept_redirects kernel parameter can be queried
by running the following command:
$ sysctl net.ipv6.conf.default.accept_redirects 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv6.conf.default.accept_redirects kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.default.accept_redirects=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.default.accept_redirects = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-81015-0: Disable Kernel Parameter for Accepting Source-Routed Packets on IPv6 Interfaces by Default | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the net.ipv6.conf.default.accept_source_route kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.default.accept_source_route=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.default.accept_source_route = 0 |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | The runtime status of the net.ipv6.conf.default.accept_source_route kernel parameter can be queried
by running the following command:
$ sysctl net.ipv6.conf.default.accept_source_route 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the net.ipv6.conf.default.accept_source_route kernel parameter, run the following command: $ sudo sysctl -w net.ipv6.conf.default.accept_source_route=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: net.ipv6.conf.default.accept_source_route = 0 |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82211-4: Disable the use of user namespaces | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | To set the runtime status of the user.max_user_namespaces kernel parameter,
run the following command:
$ sudo sysctl -w user.max_user_namespaces=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: user.max_user_namespaces = 0When containers are deployed on the machine, the value should be set to large non-zero value. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that Red Hat Enterprise Linux 8 disables the use of user namespaces with the following commands:
Note: User namespaces are used primarily for Linux containers. If containers are in use, this requirement is not applicable.
The runtime status of the user.max_user_namespaces kernel parameter can be queried
by running the following command:
$ sysctl user.max_user_namespaces 0.
Is it the case that the correct value is not returned? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | To set the runtime status of the user.max_user_namespaces kernel parameter,
run the following command:
$ sudo sysctl -w user.max_user_namespaces=0To make sure that the setting is persistent, add the following line to a file in the directory /etc/sysctl.d: user.max_user_namespaces = 0When containers are deployed on the machine, the value should be set to large non-zero value. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-82434-2: Ensure tftp Daemon Uses Secure Mode | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | If running the Trivial File Transfer Protocol (TFTP) service is necessary,
it should be configured to change its root directory at startup. To do so,
ensure /etc/xinetd.d/tftp includes -s as a command line argument,
as shown in the following example:
server_args = -s |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify the TFTP daemon is configured to operate in secure mode.
Check if a TFTP server is installed with the following command:
$ rpm -qa | grep tftpIf a TFTP server is not installed, this is Not Applicable. If a TFTP server is installed, verify TFTP is configured by with the -s option by running the following command: grep "server_args" /etc/xinetd.d/tftp server_args = -sIs it the case that '"server_args" line does not have a "-s" option, and a subdirectory is not assigned'? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | If running the Trivial File Transfer Protocol (TFTP) service is necessary,
it should be configured to change its root directory at startup. To do so,
ensure /etc/xinetd.d/tftp includes -s as a command line argument,
as shown in the following example:
server_args = -s |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83411-9: Disable graphical user interface | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | By removing the following packages, the system no longer has X Windows installed.
xorg-x11-server-Xorg xorg-x11-server-common xorg-x11-server-utils xorg-x11-server-Xwayland
If X Windows is not installed then the system cannot boot into graphical user mode.
This prevents the system from being accidentally or maliciously booted into a graphical.target
mode. To do so, run the following command:
sudo yum remove xorg-x11-server-Xorg xorg-x11-server-common xorg-x11-server-utils xorg-x11-server-Xwayland |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | To ensure the X Windows package group is removed, run the following command:
$ rpm -qi xorg-x11-server-Xorg xorg-x11-server-common xorg-x11-server-utils xorg-x11-server-XwaylandFor each package mentioned above you should receive following line: package <package> is not installedIs it the case that xorg related packages are not removed and run level is not correctly configured? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | By removing the following packages, the system no longer has X Windows installed.
xorg-x11-server-Xorg xorg-x11-server-common xorg-x11-server-utils xorg-x11-server-Xwayland
If X Windows is not installed then the system cannot boot into graphical user mode.
This prevents the system from being accidentally or maliciously booted into a graphical.target
mode. To do so, run the following command:
sudo yum remove xorg-x11-server-Xorg xorg-x11-server-common xorg-x11-server-utils xorg-x11-server-Xwayland |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00227 | TBD - Assigned by DISA after STIG release | The operating system must be configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | CCE-83380-6: Disable X Windows Startup By Setting Default Target | Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. | Systems that do not require a graphical user interface should only boot by
default into multi-user.target mode. This prevents accidental booting of the system
into a graphical.target mode. Setting the system's default target to
multi-user.target will prevent automatic startup of the X server. To do so, run:
$ systemctl set-default multi-user.targetYou should see the following output: Removed symlink /etc/systemd/system/default.target. Created symlink from /etc/systemd/system/default.target to /usr/lib/systemd/system/multi-user.target. |
Applicable - Configurable | Verify the operating system is configured in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. If it is not, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to boot to the command line:
$ systemctl get-default multi-user.targetIs it the case that the system default target is not set to "multi-user.target" and the Information System Security Officer (ISSO) lacks a documented requirement for a graphical user interface? |
Configure the operating system in accordance with the security configuration settings based on DoD security configuration or implementation guidance, including STIGs, NSA configuration guides, CTOs, and DTMs. | Systems that do not require a graphical user interface should only boot by
default into multi-user.target mode. This prevents accidental booting of the system
into a graphical.target mode. Setting the system's default target to
multi-user.target will prevent automatic startup of the X server. To do so, run:
$ systemctl set-default multi-user.targetYou should see the following output: Removed symlink /etc/systemd/system/default.target. Created symlink from /etc/systemd/system/default.target to /usr/lib/systemd/system/multi-user.target. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00228 | TBD - Assigned by DISA after STIG release | The operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | CCE-81036-6: Ensure the Default Bash Umask is Set Correctly | Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary access. | To ensure the default umask for users of the Bash shell is set properly,
add or correct the umask setting in /etc/bashrc to read
as follows:
umask |
Applicable - Configurable | Verify the operating system defines default permissions for all authenticated users in such a way that the user can only read and modify their own files. If it does not, this is a finding. | Verify the umask setting is configured correctly in the /etc/bashrc file with the following command:
$ sudo grep "umask" /etc/bashrc umaskIs it the case that the value for the "umask" parameter is not "", or the "umask" parameter is missing or is commented out? |
Configure the operating system to define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | To ensure the default umask for users of the Bash shell is set properly,
add or correct the umask setting in /etc/bashrc to read
as follows:
umask |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00228 | TBD - Assigned by DISA after STIG release | The operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | CCE-81037-4: Ensure the Default C Shell Umask is Set Correctly | Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary access. | To ensure the default umask for users of the C shell is set properly,
add or correct the umask setting in /etc/csh.cshrc to read as follows:
umask |
Applicable - Configurable | Verify the operating system defines default permissions for all authenticated users in such a way that the user can only read and modify their own files. If it does not, this is a finding. | Verify the "umask" setting is configured correctly in the "/etc/csh.cshrc" file with the following command: $ grep umask /etc/csh.cshrc umask 077 umask 077 Is it the case that the value for the "umask" parameter is not "", or the "umask" parameter is missing or is commented out? | Configure the operating system to define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | To ensure the default umask for users of the C shell is set properly,
add or correct the umask setting in /etc/csh.cshrc to read as follows:
umask |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00228 | TBD - Assigned by DISA after STIG release | The operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | CCE-82888-9: Ensure the Default Umask is Set Correctly in login.defs | Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary access. | To ensure the default umask controlled by /etc/login.defs is set properly,
add or correct the UMASK setting in /etc/login.defs to read as follows:
UMASK |
Applicable - Configurable | Verify the operating system defines default permissions for all authenticated users in such a way that the user can only read and modify their own files. If it does not, this is a finding. | Verify Red Hat Enterprise Linux 8 defines default permissions for all authenticated users in such a way that the user can only read and modify their own files with the following command:
# grep -i umask /etc/login.defs UMASKIs it the case that the value for the "UMASK" parameter is not "", or the "UMASK" parameter is missing or is commented out? |
Configure the operating system to define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | To ensure the default umask controlled by /etc/login.defs is set properly,
add or correct the UMASK setting in /etc/login.defs to read as follows:
UMASK |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00228 | TBD - Assigned by DISA after STIG release | The operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | CCE-81035-8: Ensure the Default Umask is Set Correctly in /etc/profile | Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary access. | To ensure the default umask controlled by /etc/profile is set properly,
add or correct the umask setting in /etc/profile to read as follows:
umaskNote that /etc/profile also reads scrips within /etc/profile.d directory. These scripts are also valid files to set umask value. Therefore, they should also be considered during the check and properly remediated, if necessary. |
Applicable - Configurable | Verify the operating system defines default permissions for all authenticated users in such a way that the user can only read and modify their own files. If it does not, this is a finding. | Verify the umask setting is configured correctly in the /etc/profile file
or scripts within /etc/profile.d directory with the following command:
$ grep "umask" /etc/profile* umaskIs it the case that the value for the "umask" parameter is not "", or the "umask" parameter is missing or is commented out? |
Configure the operating system to define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | To ensure the default umask controlled by /etc/profile is set properly,
add or correct the umask setting in /etc/profile to read as follows:
umaskNote that /etc/profile also reads scrips within /etc/profile.d directory. These scripts are also valid files to set umask value. Therefore, they should also be considered during the check and properly remediated, if necessary. |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00228 | TBD - Assigned by DISA after STIG release | The operating system must define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | CCE-84044-7: Ensure the Default Umask is Set Correctly For Interactive Users | Setting the most restrictive default permissions ensures that when new accounts are created they do not have unnecessary access. | Remove the UMASK environment variable from all interactive users initialization files. | Applicable - Configurable | Verify the operating system defines default permissions for all authenticated users in such a way that the user can only read and modify their own files. If it does not, this is a finding. | Verify that the default umask for all local interactive users is "077". Identify the locations of all local interactive user home directories by looking at the "/etc/passwd" file. Check all local interactive user initialization files for interactive users with the following command: Note: The example is for a system that is configured to create users home directories in the "/home" directory. # grep -ri umask /home/ /home/smithj/.bash_history:grep -i umask /etc/bashrc /etc/csh.cshrc /etc/profile /home/smithj/.bash_history:grep -i umask /etc/login.defs Is it the case that any local interactive user initialization files are found to have a umask statement that sets a value less restrictive than "077"? | Configure the operating system to define default permissions for all authenticated users in such a way that the user can only read and modify their own files. | Remove the UMASK environment variable from all interactive users initialization files. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00229 | TBD - Assigned by DISA after STIG release | The operating system must not allow an unattended or automatic logon to the system. | CCE-80823-8: Disable GDM Automatic Login | Failure to restrict system access to authenticated users negatively impacts operating system security. | The GNOME Display Manager (GDM) can allow users to automatically login without
user interaction or credentials. User should always be required to authenticate themselves
to the system that they are authorized to use. To disable user ability to automatically
login to the system, set the AutomaticLoginEnable to false in the
[daemon] section in /etc/gdm/custom.conf. For example:
[daemon] AutomaticLoginEnable=false |
Applicable - Configurable | If the operating system provides a public access service, such as a kiosk, this is not applicable. Verify the operating system does not allow an unattended or automatic logon to the system. If it does, this is a finding. Automatic logon as an authorized user allows access to any user with physical access to the operating system. | To verify that automatic logins are disabled, run the following command:
$ grep -Pzoi "^\[daemon]\\nautomaticlogin.*" /etc/gdm/custom.confThe output should show the following: [daemon] AutomaticLoginEnable=falseIs it the case that GDM allows users to automatically login? |
If the operating system provides a public access service, such as a kiosk, this is not applicable. Configure the operating system to not allow an unattended or automatic logon to the system. Automatic logon as an authorized user allows access to any user with physical access to the operating system. | The GNOME Display Manager (GDM) can allow users to automatically login without
user interaction or credentials. User should always be required to authenticate themselves
to the system that they are authorized to use. To disable user ability to automatically
login to the system, set the AutomaticLoginEnable to false in the
[daemon] section in /etc/gdm/custom.conf. For example:
[daemon] AutomaticLoginEnable=false |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00229 | TBD - Assigned by DISA after STIG release | The operating system must not allow an unattended or automatic logon to the system. | CCE-80896-4: Disable SSH Access via Empty Passwords | Failure to restrict system access to authenticated users negatively impacts operating system security. | Disallow SSH login with empty passwords.
The default SSH configuration disables logins with empty passwords. The appropriate
configuration is used if no value is set for PermitEmptyPasswords.
To explicitly disallow SSH login from accounts with empty passwords, add or correct the following line in /etc/ssh/sshd_config: PermitEmptyPasswords noAny accounts with empty passwords should be disabled immediately, and PAM configuration should prevent users from being able to assign themselves empty passwords. |
Applicable - Configurable | If the operating system provides a public access service, such as a kiosk, this is not applicable. Verify the operating system does not allow an unattended or automatic logon to the system. If it does, this is a finding. Automatic logon as an authorized user allows access to any user with physical access to the operating system. | To determine how the SSH daemon's PermitEmptyPasswords option is set, run the following command:
$ sudo grep -i PermitEmptyPasswords /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
If the operating system provides a public access service, such as a kiosk, this is not applicable. Configure the operating system to not allow an unattended or automatic logon to the system. Automatic logon as an authorized user allows access to any user with physical access to the operating system. | Disallow SSH login with empty passwords.
The default SSH configuration disables logins with empty passwords. The appropriate
configuration is used if no value is set for PermitEmptyPasswords.
To explicitly disallow SSH login from accounts with empty passwords, add or correct the following line in /etc/ssh/sshd_config: PermitEmptyPasswords noAny accounts with empty passwords should be disabled immediately, and PAM configuration should prevent users from being able to assign themselves empty passwords. |
high | |||
| CCI-000366 | SRG-OS-000480-GPOS-00229 | TBD - Assigned by DISA after STIG release | The operating system must not allow an unattended or automatic logon to the system. | CCE-80903-8: Do Not Allow SSH Environment Options | Failure to restrict system access to authenticated users negatively impacts operating system security. | Ensure that users are not able to override environment variables of the SSH daemon.
The default SSH configuration disables environment processing. The appropriate configuration is used if no value is set for PermitUserEnvironment. To explicitly disable Environment options, add or correct the following /etc/ssh/sshd_config: PermitUserEnvironment no |
Applicable - Configurable | If the operating system provides a public access service, such as a kiosk, this is not applicable. Verify the operating system does not allow an unattended or automatic logon to the system. If it does, this is a finding. Automatic logon as an authorized user allows access to any user with physical access to the operating system. | To determine how the SSH daemon's PermitUserEnvironment option is set, run the following command:
$ sudo grep -i PermitUserEnvironment /etc/ssh/sshd_configIf a line indicating no is returned, then the required value is set. Is it the case that the required value is not set? |
If the operating system provides a public access service, such as a kiosk, this is not applicable. Configure the operating system to not allow an unattended or automatic logon to the system. Automatic logon as an authorized user allows access to any user with physical access to the operating system. | Ensure that users are not able to override environment variables of the SSH daemon.
The default SSH configuration disables environment processing. The appropriate configuration is used if no value is set for PermitUserEnvironment. To explicitly disable Environment options, add or correct the following /etc/ssh/sshd_config: PermitUserEnvironment no |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00230 | TBD - Assigned by DISA after STIG release | The operating system must limit the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders. | CCE-82191-8: Install fapolicyd Package | Users' home directories/folders may contain information of a sensitive nature. Non-privileged users should coordinate any sharing of information with an SA through shared resources. | The fapolicyd package can be installed with the following command:
$ sudo yum install fapolicyd |
Applicable - Configurable | Verify the operating system limits the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders. If it does not, this is a finding. | Run the following command to determine if the fapolicyd package is installed: $ rpm -q fapolicydIs it the case that the fapolicyd package is not installed? |
Configure the operating system to limit the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders. | The fapolicyd package can be installed with the following command:
$ sudo yum install fapolicyd |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00230 | TBD - Assigned by DISA after STIG release | The operating system must limit the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders. | CCE-82249-4: Enable the File Access Policy Service | Users' home directories/folders may contain information of a sensitive nature. Non-privileged users should coordinate any sharing of information with an SA through shared resources. | The File Access Policy service should be enabled.
The fapolicyd service can be enabled with the following command:
$ sudo systemctl enable fapolicyd.service |
Applicable - Configurable | Verify the operating system limits the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders. If it does not, this is a finding. |
Run the following command to determine the current status of the
fapolicyd service:
$ sudo systemctl is-active fapolicydIf the service is running, it should return the following: activeIs it the case that the service is not enabled? |
Configure the operating system to limit the ability of non-privileged users to grant other users direct access to the contents of their home directories/folders. | The File Access Policy service should be enabled.
The fapolicyd service can be enabled with the following command:
$ sudo systemctl enable fapolicyd.service |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00232 | TBD - Assigned by DISA after STIG release | The operating system must enable an application firewall, if available. | CCE-86478-5: Configure Fapolicy Module to Employ a Deny-all, Permit-by-exception Policy to Allow the Execution of Authorized Software Programs. | Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls limit which applications are allowed to communicate over the network. | The Fapolicy module must be configured to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs and to prevent unauthorized software from running. | Applicable - Configurable | Verify the operating system enabled an application firewall, if available. If it does not, this is a finding. If the operating system does not support an application firewall, this may be downgraded to a CAT III finding. | Verify the Red Hat Enterprise Linux 8 "fapolicyd" employs a deny-all, permit-by-exception policy. Check that "fapolicyd" is in enforcement mode with the following command: $ sudo grep permissive /etc/fapolicyd/fapolicyd.conf permissive = 0 Check that fapolicyd employs a deny-all policy on system mounts with the following commands: For RHEL 8.5 systems and older: $ sudo tail /etc/fapolicyd/fapolicyd.rules For RHEL 8.6 systems and newer: $ sudo tail /etc/fapolicyd/compiled.rules allow exe=/usr/bin/python3.7 : ftype=text/x-python deny_audit perm=any pattern=ld_so : all deny perm=any all : all Is it the case that fapolicyd is not running in enforcement mode with a deny-all, permit-by-exception policy? | Ensure the operating system's application firewall is enabled, if available. | The Fapolicy module must be configured to employ a deny-all, permit-by-exception policy to allow the execution of authorized software programs and to prevent unauthorized software from running. | medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00232 | TBD - Assigned by DISA after STIG release | The operating system must enable an application firewall, if available. | CCE-82998-6: Install firewalld Package | Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls limit which applications are allowed to communicate over the network. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
Applicable - Configurable | Verify the operating system enabled an application firewall, if available. If it does not, this is a finding. If the operating system does not support an application firewall, this may be downgraded to a CAT III finding. | Run the following command to determine if the firewalld package is installed: $ rpm -q firewalldIs it the case that the package is not installed? |
Ensure the operating system's application firewall is enabled, if available. | The firewalld package can be installed with the following command:
$ sudo yum install firewalld |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00232 | TBD - Assigned by DISA after STIG release | The operating system must enable an application firewall, if available. | CCE-80877-4: Verify firewalld Enabled | Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls limit which applications are allowed to communicate over the network. |
The firewalld service can be enabled with the following command:
$ sudo systemctl enable firewalld.service |
Applicable - Configurable | Verify the operating system enabled an application firewall, if available. If it does not, this is a finding. If the operating system does not support an application firewall, this may be downgraded to a CAT III finding. |
Run the following command to determine the current status of the
firewalld service:
$ sudo systemctl is-active firewalldIf the service is running, it should return the following: activeIs it the case that the "firewalld" service is disabled, masked, or not started.? |
Ensure the operating system's application firewall is enabled, if available. |
The firewalld service can be enabled with the following command:
$ sudo systemctl enable firewalld.service |
medium | |||
| CCI-000366 | SRG-OS-000480-GPOS-00232 | TBD - Assigned by DISA after STIG release | The operating system must enable an application firewall, if available. | CCE-82462-3: SSH server uses strong entropy to seed | Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls limit which applications are allowed to communicate over the network. | To set up SSH server to use entropy from a high-quality source, edit the /etc/sysconfig/sshd file.
The SSH_USE_STRONG_RNG configuration value determines how many bytes of entropy to use, so
make sure that the file contains line
SSH_USE_STRONG_RNG=32 |
Applicable - Configurable | Verify the operating system enabled an application firewall, if available. If it does not, this is a finding. If the operating system does not support an application firewall, this may be downgraded to a CAT III finding. | To determine whether the SSH service is configured to use strong entropy seed,
run $ sudo grep SSH_USE_STRONG_RNG /etc/sysconfig/sshdIf a line indicating that SSH_USE_STRONG_RNG is set to 32 is returned, then the option is set correctly. Is it the case that the SSH_USE_STRONG_RNG is not set to 32 in /etc/sysconfig/sshd? |
Ensure the operating system's application firewall is enabled, if available. | To set up SSH server to use entropy from a high-quality source, edit the /etc/sysconfig/sshd file.
The SSH_USE_STRONG_RNG configuration value determines how many bytes of entropy to use, so
make sure that the file contains line
SSH_USE_STRONG_RNG=32 |
low | |||
| SV-79303 | SRG-OS-000481-GPOS-00481 | TBD - Assigned by DISA after STIG release | The operating system must protect the confidentiality and integrity of communications with wireless peripherals. | Without protection of communications with wireless peripherals, confidentiality and integrity may be compromised because unprotected communications can be intercepted and either read, altered, or used to compromise the operating system. This requirement applies to wireless peripheral technologies (e.g., wireless mice, keyboards, displays, etc.) used with an operating system. Wireless peripherals (e.g., Wi-Fi/Bluetooth/IR Keyboards, Mice, and Pointing Devices and Near Field Communications [NFC]) present a unique challenge by creating an open, unsecured port on a computer. Wireless peripherals must meet DoD requirements for wireless data transmission and be approved for use by the AO. Even though some wireless peripherals, such as mice and pointing devices, do not ordinarily carry information that need to be protected, modification of communications with these wireless peripherals may be used to compromise the operating system. Communication paths outside the physical protection of a controlled boundary are exposed to the possibility of interception and modification. Protecting the confidentiality and integrity of communications with wireless peripherals can be accomplished by physical means (e.g., employing physical barriers to wireless radio frequencies) or by logical means (e.g., employing cryptographic techniques). If physical means of protection are employed, then logical means (cryptography) do not have to be employed, and vice versa. If the wireless peripheral is only passing telemetry data, encryption of the data may not be required. | |||||||||||
| CCI-002605 | SRG-OS-000439-GPOS-00195 | TBD - Assigned by DISA after STIG release | The operating system must install security-relevant software updates within the time period directed by an authoritative source (e.g., IAVM, CTOs, DTMs, and STIGs). | Security flaws with operating systems are discovered daily. Vendors are constantly updating and patching their products to address newly discovered security vulnerabilities. Organizations (including any contractor to the organization) are required to promptly install security-relevant software updates (e.g., patches, service packs, and hot fixes). Flaws discovered during security assessments, continuous monitoring, incident response activities, or information system error handling must also be addressed expeditiously. | |||||||||||
| CCI-003628 | SRG-OS-000590-GPOS-00110 | TBD - Assigned by DISA after STIG release | The operating system must disable accounts when the accounts are no longer associated to a user. | Disabling expired, inactive, or otherwise anomalous accounts supports the concepts of least privilege and least functionality which reduce the attack surface of the system. | |||||||||||
| CCI-003959 | SRG-OS-000690-GPOS-00140 | TBD - Assigned by DISA after STIG release | The operating system must prohibit the use or connection of unauthorized hardware components. | Hardware components provide the foundation for organizational systems and the platform for the execution of authorized software programs. Managing the inventory of hardware components and controlling which hardware components are permitted to be installed or connected to organizational systems is essential to provide adequate security. | |||||||||||
| CCI-004047 | SRG-OS-000705-GPOS-00150 | TBD - Assigned by DISA after STIG release | The operating system must implement multifactor authentication for local, network, and/or remote access to privileged accounts and/or nonprivileged accounts such that the device meets organization-defined strength of mechanism requirements. | The purpose of requiring a device separate from the system to which the user is attempting to gain access for one of the factors during multifactor authentication is to reduce the likelihood of compromising authenticators or credentials stored on the system. Adversaries may be able to compromise such authenticators or credentials and subsequently impersonate authorized users. Implementing one of the factors on a separate device (e.g., a hardware token), provides a greater strength of mechanism and an increased level of assurance in the authentication process. | |||||||||||
| CCI-004061 | SRG-OS-000710-GPOS-00160 | TBD - Assigned by DISA after STIG release | The operating system must, for password-based authentication, verify when users create or update passwords the passwords are not found on the list of commonly-used, expected, or compromised passwords in IA-5 (1) (a). | Password-based authentication applies to passwords regardless of whether they are used in single-factor or multifactor authentication. Long passwords or passphrases are preferable over shorter passwords. Enforced composition rules provide marginal security benefits while decreasing usability. However, organizations may choose to establish certain rules for password generation (e.g., minimum character length for long passwords) under certain circumstances and can enforce this requirement in IA-5(1)(h). Account recovery can occur, for example, in situations when a password is forgotten. Cryptographically protected passwords include salted one-way cryptographic hashes of passwords. The list of commonly used, compromised, or expected passwords includes passwords obtained from previous breach corpuses, dictionary words, and repetitive or sequential characters. The list includes context-specific words, such as the name of the service, username, and derivatives thereof. | |||||||||||
| CCI-004063 | SRG-OS-000720-GPOS-00170 | TBD - Assigned by DISA after STIG release | The operating system must for password-based authentication, require immediate selection of a new password upon account recovery. | Password-based authentication applies to passwords regardless of whether they are used in single-factor or multifactor authentication. Long passwords or passphrases are preferable over shorter passwords. Enforced composition rules provide marginal security benefits while decreasing usability. However, organizations may choose to establish certain rules for password generation (e.g., minimum character length for long passwords) under certain circumstances and can enforce this requirement in IA-5(1)(h). Account recovery can occur, for example, in situations when a password is forgotten. Cryptographically protected passwords include salted one-way cryptographic hashes of passwords. The list of commonly used, compromised, or expected passwords includes passwords obtained from previous breach corpuses, dictionary words, and repetitive or sequential characters. The list includes context-specific words, such as the name of the service, username, and derivatives thereof. | |||||||||||
| CCI-004064 | SRG-OS-000725-GPOS-00180 | TBD - Assigned by DISA after STIG release | The operating system must for password-based authentication, allow user selection of long passwords and passphrases, including spaces and all printable characters. | Password-based authentication applies to passwords regardless of whether they are used in single-factor or multifactor authentication. Long passwords or passphrases are preferable over shorter passwords. Enforced composition rules provide marginal security benefits while decreasing usability. However, organizations may choose to establish certain rules for password generation (e.g., minimum character length for long passwords) under certain circumstances and can enforce this requirement in IA-5(1)(h). Account recovery can occur, for example, in situations when a password is forgotten. Cryptographically protected passwords include salted one-way cryptographic hashes of passwords. The list of commonly used, compromised, or expected passwords includes passwords obtained from previous breach corpuses, dictionary words, and repetitive or sequential characters. The list includes context-specific words, such as the name of the service, username, and derivatives thereof. | |||||||||||
| CCI-004065 | SRG-OS-000730-GPOS-00190 | TBD - Assigned by DISA after STIG release | The operating system must, for password-based authentication, employ automated tools to assist the user in selecting strong password authenticators. | CCE-81034-1: Ensure PAM Enforces Password Requirements - Maximum Consecutive Repeating Characters from Same Character Class | Password-based authentication applies to passwords regardless of whether they are used in single-factor or multifactor authentication. Long passwords or passphrases are preferable over shorter passwords. Enforced composition rules provide marginal security benefits while decreasing usability. However, organizations may choose to establish certain rules for password generation (e.g., minimum character length for long passwords) under certain circumstances and can enforce this requirement in IA-5(1)(h). Account recovery can occur, for example, in situations when a password is forgotten. Cryptographically protected passwords include salted one-way cryptographic hashes of passwords. The list of commonly used, compromised, or expected passwords includes passwords obtained from previous breach corpuses, dictionary words, and repetitive or sequential characters. The list includes context-specific words, such as the name of the service, username, and derivatives thereof. | The pam_pwquality module's maxclassrepeat parameter controls requirements for consecutive repeating characters from the same character class. When set to a positive number, it will reject passwords which contain more than that number of consecutive characters from the same character class. Modify the maxclassrepeat setting in /etc/security/pwquality.conf to equal to prevent a run of ( + 1) or more identical characters. | Applicable - Configurable | Verify the operating system is configured to employ automated tools to assist the user in selecting strong password authenticators for password-based authentication. If the operating system is not configured to employ automated tools to assist the user in selecting strong password authenticators for password-based authentication, this is a finding. | Verify the value of the "maxclassrepeat" option in "/etc/security/pwquality.conf" with the following command:
$ grep maxclassrepeat /etc/security/pwquality.conf maxclassrepeat =Is it the case that the value of "maxclassrepeat" is set to "0", more than "" or is commented out? |
Configure the operating system to employ automated tools to assist the user in selecting strong password authenticators for password-based authentication. | The pam_pwquality module's maxclassrepeat parameter controls requirements for consecutive repeating characters from the same character class. When set to a positive number, it will reject passwords which contain more than that number of consecutive characters from the same character class. Modify the maxclassrepeat setting in /etc/security/pwquality.conf to equal to prevent a run of ( + 1) or more identical characters. | medium | |||
| CCI-004083 | SRG-OS-000745-GPOS-00210 | TBD - Assigned by DISA after STIG release | The operating system must accept only external credentials that are NIST-compliant. | Acceptance of only NIST-compliant external authenticators applies to organizational systems that are accessible to the public (e.g., public-facing websites). External authenticators are issued by nonfederal government entities and are compliant with [SP 800-63B]. Approved external authenticators meet or exceed the minimum federal government-wide technical, security, privacy, and organizational maturity requirements. Meeting or exceeding federal requirements allows federal government relying parties to trust external authenticators in connection with an authentication transaction at a specified authenticator assurance level. | |||||||||||
| CCI-004188 | SRG-OS-000755-GPOS-00220 | TBD - Assigned by DISA after STIG release | The operating system must monitor the use of maintenance tools that execute with increased privilege. | CCE-80736-2: Ensure auditd Collects Information on the Use of Privileged Commands - su | Maintenance tools that execute with increased system privilege can result in unauthorized access to organizational information and assets that would otherwise be inaccessible. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system is configured to monitor the use of maintenance tools that execute with increased privilege. If the operating system is not configured to monitor the use of maintenance tools that execute with increased privilege, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "su" command with the following command: $ sudo auditctl -l | grep su -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -k privileged-su Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to monitor the use of maintenance tools that execute with increased privilege. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/su -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-004188 | SRG-OS-000755-GPOS-00220 | TBD - Assigned by DISA after STIG release | The operating system must monitor the use of maintenance tools that execute with increased privilege. | CCE-80737-0: Ensure auditd Collects Information on the Use of Privileged Commands - sudo | Maintenance tools that execute with increased system privilege can result in unauthorized access to organizational information and assets that would otherwise be inaccessible. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
Applicable - Configurable | Verify the operating system is configured to monitor the use of maintenance tools that execute with increased privilege. If the operating system is not configured to monitor the use of maintenance tools that execute with increased privilege, this is a finding. | Verify that Red Hat Enterprise Linux 8 is configured to audit the execution of the "sudo" command with the following command: $ sudo auditctl -l | grep sudo -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo Is it the case that the command does not return a line, or the line is commented out? | Configure the operating system to monitor the use of maintenance tools that execute with increased privilege. | At a minimum, the audit system should collect the execution of
privileged commands for all users and root. If the auditd daemon is
configured to use the augenrules program to read audit rules during
daemon startup (the default), add a line of the following form to a file with
suffix .rules in the directory /etc/audit/rules.d:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privilegedIf the auditd daemon is configured to use the auditctl utility to read audit rules during daemon startup, add a line of the following form to /etc/audit/audit.rules: -a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -F key=privileged |
medium | |||
| CCI-004188 | SRG-OS-000755-GPOS-00220 | TBD - Assigned by DISA after STIG release | The operating system must monitor the use of maintenance tools that execute with increased privilege. | CCE-83556-1: Record Events When Privileged Executables Are Run | Maintenance tools that execute with increased system privilege can result in unauthorized access to organizational information and assets that would otherwise be inaccessible. | Verify the system generates an audit record when privileged functions are executed.
If audit is using the "auditctl" tool to load the rules, run the following command:
$ sudo grep execve /etc/audit/audit.rulesIf audit is using the "augenrules" tool to load the rules, run the following command: $ sudo grep -r execve /etc/audit/rules.d -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIf both the "b32" and "b64" audit rules for "SUID" files are not defined, this is a finding. If both the "b32" and "b64" audit rules for "SGID" files are not defined, this is a finding. |
Applicable - Configurable | Verify the operating system is configured to monitor the use of maintenance tools that execute with increased privilege. If the operating system is not configured to monitor the use of maintenance tools that execute with increased privilege, this is a finding. | Verify Red Hat Enterprise Linux 8 audits the execution of privileged functions.
Check if Red Hat Enterprise Linux 8 is configured to audit the execution of the "execve" system call using the following command:
$ sudo grep execve /etc/audit/audit.rulesThe output should be the following: -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIs it the case that the command does not return all lines, or the lines are commented out? |
Configure the operating system to monitor the use of maintenance tools that execute with increased privilege. | Verify the system generates an audit record when privileged functions are executed.
If audit is using the "auditctl" tool to load the rules, run the following command:
$ sudo grep execve /etc/audit/audit.rulesIf audit is using the "augenrules" tool to load the rules, run the following command: $ sudo grep -r execve /etc/audit/rules.d -a always,exit -F arch=b32 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b64 -S execve -C uid!=euid -F euid=0 -k setuid -a always,exit -F arch=b32 -S execve -C gid!=egid -F egid=0 -k setgid -a always,exit -F arch=b64 -S execve -C gid!=egid -F egid=0 -k setgidIf both the "b32" and "b64" audit rules for "SUID" files are not defined, this is a finding. If both the "b32" and "b64" audit rules for "SGID" files are not defined, this is a finding. |
medium | |||
| CCI-004909 | SRG-OS-000775-GPOS-00230 | TBD - Assigned by DISA after STIG release | The operating system must include only approved trust anchors in trust stores or certificate stores managed by the organization. | Public key infrastructure (PKI) certificates are certificates with visibility external to organizational systems and certificates related to the internal operations of systems, such as application-specific time services. In cryptographic systems with a hierarchical structure, a trust anchor is an authoritative source (i.e., a certificate authority) for which trust is assumed and not derived. A root certificate for a PKI system is an example of a trust anchor. A trust store or certificate store maintains a list of trusted root certificates. | |||||||||||
| CCI-004910 | SRG-OS-000780-GPOS-00240 | TBD - Assigned by DISA after STIG release | The operating system must provide protected storage for cryptographic keys with organization-defined safeguards and/or hardware protected key store. | A Trusted Platform Module (TPM) is an example of a hardware-protected data store that can be used to protect cryptographic keys. | |||||||||||
| CCI-004922 | SRG-OS-000785-GPOS-00250 | TBD - Assigned by DISA after STIG release | The operating system must synchronize system clocks within and between systems or system components. | Time synchronization of system clocks is essential for the correct execution of many system services, including identification and authentication processes that involve certificates and time-of-day restrictions as part of access control. Denial of service or failure to deny expired credentials may result without properly synchronized clocks within and between systems and system components. Time is commonly expressed in Coordinated Universal Time (UTC), a modern continuation of Greenwich Mean Time (GMT), or local time with an offset from UTC. The granularity of time measurements refers to the degree of synchronization between system clocks and reference clocks, such as clocks synchronizing within hundreds of milliseconds or tens of milliseconds. Organizations may define different time granularities for system components. Time service can be critical to other security capabilities—such as access control and identification and authentication—depending on the nature of the mechanisms used to support the capabilities. | |||||||||||
| CCI-004961 | SRG-OS-000805-GPOS-00260 | TBD - Assigned by DISA after STIG release | The operating system must employ automated patch management tools to facilitate flaw remediation to the organization-defined system components. | Using automated tools to support patch management helps to ensure the timeliness and completeness of system patching operations. |