STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 26 Mar 2026:

TOSS 5 audit system must protect auditing rules from unauthorized change.

DISA Rule

SV-282435r1200285_rule

Vulnerability Number

V-282435

Group Title

SRG-OS-000057-GPOS-00027

Rule Version

TOSS-05-000464

Severity

CAT II

CCI(s)

• 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 the audit system to set the audit rules to be immutable by adding the following line to end of "/etc/audit/rules.d/audit.rules":

-e 2

Restart the audit daemon for the changes to take effect.

Check Contents

Verify the audit system prevents unauthorized changes using the following command:

$ sudo grep "^\s*[^#]" /etc/audit/audit.rules | tail -1

-e 2

If the audit system is not set to be immutable by adding the "-e 2" option to the end of "/etc/audit/audit.rules", this is a finding.

Vulnerability Number

V-282435

Documentable

False

Rule Version

TOSS-05-000464

Severity Override Guidance

Verify the audit system prevents unauthorized changes using the following command:

$ sudo grep "^\s*[^#]" /etc/audit/audit.rules | tail -1

-e 2

If the audit system is not set to be immutable by adding the "-e 2" option to the end of "/etc/audit/audit.rules", this is a finding.

Check Content Reference

M

Target Key

5738