STIGQter: STIG Summary: Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide Version: 2 Release: 6 Benchmark Date: 01 Jul 2026:

TOSS must generate audit records for all account creations, modifications, disabling, and termination events that affect /etc/shadow.

DISA Rule

SV-252972r958368_rule

Vulnerability Number

V-252972

Group Title

SRG-OS-000004-GPOS-00004

Rule Version

TOSS-04-030000

Severity

CAT II

CCI(s)

• CCI-000018 - Automatically audit account creation actions.
• 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-001403 - Automatically audit account modification actions.
• CCI-001404 - Automatically audit account disabling actions.
• CCI-001405 - Automatically audit account removal actions.
• CCI-002130 - Automatically audit account enabling actions.

Weight

10

Fix Recommendation

Configure TOSS to generate audit records for all account creations, modifications, disabling, and termination events that affect "/etc/shadow."

Add or update the following file system rule to "/etc/audit/rules.d/audit.rules":

-w /etc/shadow -p wa -k identity

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

Note: The "-k" allows for specifying an arbitrary identifier. The string following "-k" does not need to match the example output above.

Check Contents

Verify TOSS generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/shadow."

Check the auditing rules in "/etc/audit/audit.rules" with the following command:

$ sudo grep /etc/shadow /etc/audit/audit.rules
-w /etc/shadow -p wa -k identity

If the command does not return a line, or the line is commented out, this is a finding.

Note: The "-k" allows for specifying an arbitrary identifier. The string following "-k" does not need to match the example output above.

Vulnerability Number

V-252972

Documentable

False

Rule Version

TOSS-04-030000

Severity Override Guidance

Verify TOSS generates audit records for all account creations, modifications, disabling, and termination events that affect "/etc/shadow."

Check the auditing rules in "/etc/audit/audit.rules" with the following command:

$ sudo grep /etc/shadow /etc/audit/audit.rules
-w /etc/shadow -p wa -k identity

If the command does not return a line, or the line is commented out, this is a finding.

Note: The "-k" allows for specifying an arbitrary identifier. The string following "-k" does not need to match the example output above.

Check Content Reference

M

Target Key

5469