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V-269189

CAT II (Medium)

All AlmaLinux OS 9 local files and directories must have a valid group owner.

Rule ID

SV-269189r1050071_rule

STIG

Cloud Linux AlmaLinux OS 9 Security Technical Implementation Guide

Version

V1R6

CCIs

CCI-000366

Discussion

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.

Check Content

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

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>