Vulnerability Discussion

Audit data should be synchronously written to disk to ensure log integrity. This setting ensures that all audit event data is written disk.

Check

Verify that OL 9 audit system is configured to write logs to the disk with the following command:

$ sudo grep write_logs /etc/audit/auditd.conf
write_logs = yes

If "write_logs" does not have a value of "yes", the line is commented out, or the line is missing, this is a finding.

Fix

Configure the audit system to write log files to the disk.

Edit the /etc/audit/auditd.conf file and add or update the "write_logs" option to "yes":

write_logs = yes

The audit daemon must be restarted for changes to take effect.

Restart auditd:
$ sudo service auditd restart