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V-221724

CAT II (Medium)

The Oracle Linux operating system must be configured so that all files and directories have a valid owner.

Rule ID

SV-221724r991589_rule

STIG

Oracle Linux 7 Security Technical Implementation Guide

Version

V3R5

CCIs

CCI-000366

Discussion

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.

Check Content

Verify all files and directories on the system have a valid owner.

Check the owner of all files and directories with the following command:

Note: The value after -fstype must be replaced with the filesystem type. XFS is used as an example.

# find / -fstype xfs -nouser

If any files on the system do not have an assigned owner, this is a finding.

Fix Text

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 system with the "chown" command:

# chown <user> <file>