All files and directories must have a valid owner.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-215002	UBTU-16-010700	SV-215002r610931_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
Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide	2020-12-09

Details

Check Text ( C-16201r284874_chk )
Verify all files and directories on the Ubuntu operating system have a valid owner. Check the owner of all files and directories with the following command: # sudo find / -nouser If any files on the system do not have an assigned owner, this is a finding.

Fix Text (F-16199r284875_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 the Ubuntu operating system with the "chown" command: # sudo chown