The TOSS 5 /etc/group file must be group-owned by root.

The "/etc/group" file contains information regarding groups configured on the system. Protecting this file is critical for system security.

Verify the group ownership of the "/etc/group" file using the following command:

$ sudo stat -c "%G %n" /etc/group 

root /etc/group

If "/etc/group" file does not have a group owner of "root", this is a finding.

Change the group of the file "/etc/group" to "root" using the following command:

$ sudo chgrp root /etc/group