V-215182

Discussion

The /usr/lib/security/mkuser.default file contains the default primary groups for regular and admin users. Setting a system group as the regular users' primary group increases the risk that the regular users can access privileged resources.

Check Content

Check the default primary group for regular users:
# lssec -f /etc/security/mkuser.default -s user -a pgrp

The above command should yield the following output:
user pgrp=staff

If the above command shows that the primary group (pgrp) is not "staff", this is a finding.