All AlmaLinux OS 9 local files and directories must have a valid group owner.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-269189 | ALMA-09-012450 | SV-269189r1050071_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 | |||
| CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide | 2025-05-22 | |||
Details
Check Text (C-269189r1050071_chk)
Verify all local files and directories on AlmaLinux OS 9 have a valid group with the following command:
$ df --local -P | awk {'if (NR!=1) print $6'} | xargs -I '{}' find '{}' -xdev -nogroup
If any files on the system do not have an assigned group, this is a finding.
Fix Text (F-73121r1049289_fix)
Either remove all files and directories from AlmaLinux OS 9 that do not have a valid group, or assign a valid group to all files and directories on the system with the "chgrp" command:
$ chgrp <group> <file>