Vulnerability Discussion
Enriched logging is needed to determine who, what, and when events occur on a system. Without this, determining root cause of an event will be much more difficult.
When audit logs are not labeled before they are sent to a central log server, the audit data will not be able to be analyzed and tied back to the correct system.
Satisfies: SRG-OS-000039-GPOS-00017, SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224
Check
Verify that RHEL 9 Audit Daemon is configured to label all offloaded audit logs, with the following command:
$ sudo grep name_format /etc/audit/auditd.conf
name_format = hostname
If the "name_format" option is not "hostname", "fqd", or "numeric", or the line is commented out, this is a finding.
Fix
Edit the /etc/audit/auditd.conf file and add or update the "name_format" option:
name_format = hostname
The audit daemon must be restarted for changes to take effect.