Title

System audit logs must have mode 640 or less permissive. (Cat II impact)

Discussion

If a user can write to the audit logs, audit trails can be modified or destroyed and system intrusion may not be detected. System audit logs are those files generated from the audit system and do not include activity, error, or other log files created by application software.

Check Content

Open a terminal session and use the following command to verify the permissions. ls -lL /var/audit If any audit log file has a mode more permissive than 640, this is a finding.

Fix Text

Open a terminal session and use the following command to set the permissions of the audit log file. chmod 640 /var/audit <filename>

Additional Identifiers

Rule ID: SV-38622r1_rule

Vulnerability ID: V-813

Group Title:

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.