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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-253100	TOSS-04-040580	SV-253100r824972_rule		Medium

Description
Unowned files and directories may be unintentionally inherited if a user is assigned the same User Identifier "UID" as the UID of the un-owned files.

STIG	Date
Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide	2022-08-29

Details

Check Text ( C-56553r824970_chk )
Verify all local files and directories on TOSS have a valid owner 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 -nouser If any files on the system do not have an assigned owner, this is a finding. Note: Command may produce error messages from the /proc and /sys directories.

Fix Text (F-56503r824971_fix)
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 with the "chown" command: $ sudo chown