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

All TOSS 5 local files and directories must have a valid owner.

DISA Rule

SV-282671r1200993_rule

Vulnerability Number

V-282671

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

TOSS-05-000188

Severity

CAT II

CCI(s)

• CCI-000366 - Implement the security configuration settings.

Weight

10

Fix Recommendation

Either remove all files and directories from the system that do not have a valid user, or assign a valid user to all unowned files and directories on TOSS 5 with the "chown" command:

$ sudo chown <user> <file>

Check Contents

Verify all local files and directories on TOSS 5 have a valid owner using the following command:

$ df --local -P | awk {'if (NR!=1) print $6'} | sudo xargs -I '{}' find '{}' -xdev -nouser

If any files on the system do not have an assigned owner, this is a finding.

Vulnerability Number

V-282671

Documentable

False

Rule Version

TOSS-05-000188

Severity Override Guidance

Verify all local files and directories on TOSS 5 have a valid owner using the following command:

$ df --local -P | awk {'if (NR!=1) print $6'} | sudo xargs -I '{}' find '{}' -xdev -nouser

If any files on the system do not have an assigned owner, this is a finding.

Check Content Reference

M

Target Key

5738