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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-253100r991589_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 2024-05-30

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