Title

All SLEM 5 files and directories must have a valid owner. (Cat II impact)

Discussion

Unowned files and directories may be unintentionally inherited if a user is assigned the same User Identifier (UID) as the UID of the unowned files.

Check Content

Verify that all SLEM 5 files and directories on the system 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 a valid owner, this is a finding.

Fix Text

Either remove all files and directories from SLEM 5 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: > sudo chown <user > <file>

Additional Identifiers

Rule ID: SV-261303r996382_rule

Vulnerability ID: V-261303

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.