All files and directories must have a valid owner.

From MAC OSX 10.6 Workstation Security Technical Implementation Guide

Associated with IA controls: ECCD-2, ECCD-1

Associated with: CCI-000366

SV-38181r1_rule All files and directories must have a valid owner.

Vulnerability discussion

Non-ownership files and directories may be unintentionally inherited if a user is assigned the same UID as the UID of the non-ownership files.

Check content

Open a terminal session and enter the following command. find / -nouser Review the results. If any files do not have a valid owner, this is a finding.

Fix text

Determine the legitimate owner of the files and use the "chown" command to set the owner and group to the correct value. If the legitimate owner cannot be determined, examine the files to determine their origin and the reason for their lack of an owner/group.

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