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-253099r824969_rule		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	2022-08-29

Details

Check Text ( C-56552r824967_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