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 must be configured so that the file integrity tool verifies Access Control Lists (ACLs).

DISA Rule

SV-282743r1201209_rule

Vulnerability Number

V-282743

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

TOSS-05-000373

Severity

CAT III

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Configure the file integrity tool to check file and directory ACLs.

If AIDE is installed, ensure the "acl" rule is present on all uncommented file and directory selection lists.

Check Contents

Confirm AIDE is verifying ACLs using the following command:

$ grep acl /etc/aide.conf

All= p+i+n+u+g+s+m+S+sha512+acl+xattrs+selinux

If the "acl" rule is not being used on all uncommented selection lines in the "/etc/aide.conf" file, or ACLs are not being checked by another file integrity tool, this is a finding.

Vulnerability Number

V-282743

Documentable

False

Rule Version

TOSS-05-000373

Severity Override Guidance

Confirm AIDE is verifying ACLs using the following command:

$ grep acl /etc/aide.conf

All= p+i+n+u+g+s+m+S+sha512+acl+xattrs+selinux

If the "acl" rule is not being used on all uncommented selection lines in the "/etc/aide.conf" file, or ACLs are not being checked by another file integrity tool, this is a finding.

Check Content Reference

M

Target Key

5738