Title

All interactive user's home directories must be group-owned by the home directory owner's primary group. (Cat II impact)

Discussion

If the GID of the home directory is not the same as the GID of the user, this would allow unauthorized access to files.

Check Content

Check the group ownership for each user in the /etc/passwd file. Procedure: # cut -d : -f 6 /etc/passwd | xargs -n1 ls -ld | more If any user's home directory is not group-owned by the assigned user's primary group, this is a finding. Home directories for application accounts requiring different group ownership must be documented using site-defined procedures.

Fix Text

Change the group owner for user's home directories to the primary group of the assigned user. Procedure: # chgrp groupname directoryname (Replace examples with appropriate group and home directory.) Document all changes.

Additional Identifiers

Rule ID: SV-220030r603265_rule

Vulnerability ID: V-220030

Group Title: SRG-OS-000480

Expert Comments

CCIs tied to check.

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