All TOSS local files and directories must have a valid group owner.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-253099 | TOSS-04-040570 | SV-253099r991589_rule | CCI-000366 | medium |
| Description | ||||
| Files without a valid group owner may be unintentionally inherited if a group is assigned the same Group Identifier (GID) as the GID of the files without a valid group owner. | ||||
| STIG | Date | |||
| Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide | 2025-05-08 | |||
Details
Check Text (C-253099r991589_chk)
Verify all local files and directories on TOSS have a valid group with the following command:
Note: The value after -fstype must be replaced with the filesystem type. XFS is used as an example.
$ sudo find / -fstype xfs -nogroup
If any files on the system do not have an assigned group, this is a finding.
Note: Command may produce error messages from the /proc and /sys directories.
Fix Text (F-56502r824968_fix)
Either remove all files and directories from TOSS that do not have a valid group, or assign a valid group to all files and directories on the system with the "chgrp" command:
$ sudo chgrp <group> <file>