STIGQter: STIG Summary: Canonical Ubuntu 24.04 LTS Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

Ubuntu 24.04 LTS must generate audit records for the use and modification of the lastlog file.

DISA Rule

SV-270797r1066880_rule

Vulnerability Number

V-270797

Group Title

SRG-OS-000064-GPOS-00033

Rule Version

UBTU-24-900260

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.

Weight

10

Fix Recommendation

Configure the audit system to generate an audit event for any successful/unsuccessful modifications to the "lastlog" file.

Add or update the following rules in the "/etc/audit/rules.d/stig.rules" file:

-w /var/log/lastlog -p wa -k logins

To reload the rules file, issue the following command:

$ sudo augenrules --load

Check Contents

Verify Ubuntu 24.04 LTS generates an audit record when successful/unsuccessful modifications to the "lastlog" file occur with the following command:

$ sudo auditctl -l | grep lastlog
-w /var/log/lastlog -p wa -k logins

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

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

Vulnerability Number

V-270797

Documentable

False

Rule Version

UBTU-24-900260

Severity Override Guidance

Verify Ubuntu 24.04 LTS generates an audit record when successful/unsuccessful modifications to the "lastlog" file occur with the following command:

$ sudo auditctl -l | grep lastlog
-w /var/log/lastlog -p wa -k logins

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

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

Check Content Reference

M

Target Key

5673