OL08-00-030121 - The OL 8 audit system must protect auditing rules from unauthorized change.

Information

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 OL 8 system activity.

In immutable mode, unauthorized users cannot execute changes to the audit system to potentially hide malicious activity and then put the audit rules back. A system reboot would be noticeable and a system administrator could then investigate the unauthorized changes.

Satisfies: SRG-OS-000057-GPOS-00027, SRG-OS-000058-GPOS-00028, SRG-OS-000059-GPOS-00029

Solution

Configure the audit system to set the audit rules to be immutable by adding the following line to '/etc/audit/rules.d/audit.rules':

-e 2

Note: Once set, the system must be rebooted for auditing to be changed. It is recommended to add this option as the last step in securing the system.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Oracle_Linux_8_V1R2_STIG.zip

Item Details

Category: AUDIT AND ACCOUNTABILITY

References: 800-53|AU-9, CAT|II, CCI|CCI-000162, CCI|CCI-000163, CCI|CCI-000164, Rule-ID|SV-248738r779780_rule, STIG-ID|OL08-00-030121, Vuln-ID|V-248738

Plugin: Unix

Control ID: f2da5ef19481f9c6af89874c547e780494f39d1ab8ec0aa823f32d4a68856b3d