STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 audit system must protect logon UIDs from unauthorized change.

DISA Rule

SV-271885r1092367_rule

Vulnerability Number

V-271885

Group Title

SRG-OS-000462-GPOS-00206

Rule Version

OL09-00-008000

Severity

CAT II

CCI(s)

• CCI-000172 - Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.
• CCI-000162 - Protect audit information from unauthorized access.
• CCI-000163 - Protect audit information from unauthorized modification.
• CCI-000164 - Protect audit information from unauthorized deletion.

Weight

10

Fix Recommendation

Configure OL 9 auditing to prevent modification of login UIDs once they are set by adding the following line to /etc/audit/rules.d/audit.rules:

--loginuid-immutable

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

$ sudo service auditd restart

Check Contents

Verify that OL 9 audit system configuration prevents unauthorized changes to logon UIDs with the following command:

$ sudo grep -i immutable /etc/audit/audit.rules
--loginuid-immutable

If the "--loginuid-immutable" option is not returned in the "/etc/audit/audit.rules", or the line is commented out, this is a finding.

Vulnerability Number

V-271885

Documentable

False

Rule Version

OL09-00-008000

Severity Override Guidance

Verify that OL 9 audit system configuration prevents unauthorized changes to logon UIDs with the following command:

$ sudo grep -i immutable /etc/audit/audit.rules
--loginuid-immutable

If the "--loginuid-immutable" option is not returned in the "/etc/audit/audit.rules", or the line is commented out, this is a finding.

Check Content Reference

M

Target Key

5680