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 logs file must have mode 0600 or less permissive to prevent unauthorized access to the audit log.

DISA Rule

SV-282433r1200279_rule

Vulnerability Number

V-282433

Group Title

SRG-OS-000057-GPOS-00027

Rule Version

TOSS-05-000402

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.
• CCI-001314 - Reveal error messages only to organization-defined personnel or roles.

Weight

10

Fix Recommendation

Configure the audit logs to have a mode of "0600" using the following command:

Replace "[audit_log_file]" to the correct audit log path, by default this location is "/var/log/audit/audit.log".

$ sudo chmod 0600 /var/log/audit/[audit_log_file]

Check the group that owns the system audit logs:

$ sudo grep -m 1 -q ^log_group /etc/audit/auditd.conf

If the "log_group" is not defined or it is set to "root", configure the permissions as follows:

$ sudo chmod 0640 $log_file
$ sudo chmod 0440 $log_file.*

Otherwise, configure the permissions as follows:

$ sudo chmod 0600 $log_file
$ sudo chmod 0400 $log_file.*

Check Contents

Verify the audit logs have a mode of "0600".

Determine where the audit logs are stored using the following command:

$ sudo grep -iw log_file /etc/audit/auditd.conf

log_file = /var/log/audit/audit.log

Using the location of the audit log file, determine if the audit log files as a mode of "0640" using the following command:

$ sudo ls -la /var/log/audit/*.log

rw-------. 2 root root 237923 Jun 11 11:56 /var/log/audit/audit.log

If the audit logs have a mode more permissive than "0600", this is a finding.

Vulnerability Number

V-282433

Documentable

False

Rule Version

TOSS-05-000402

Severity Override Guidance

Verify the audit logs have a mode of "0600".

Determine where the audit logs are stored using the following command:

$ sudo grep -iw log_file /etc/audit/auditd.conf

log_file = /var/log/audit/audit.log

Using the location of the audit log file, determine if the audit log files as a mode of "0640" using the following command:

$ sudo ls -la /var/log/audit/*.log

rw-------. 2 root root 237923 Jun 11 11:56 /var/log/audit/audit.log

If the audit logs have a mode more permissive than "0600", this is a finding.

Check Content Reference

M

Target Key

5738