{{{ oval_metadata( "The grub2 boot loader superuser should have a username that is hard to guess.", rule_title=rule_title) }}} .* {{{ grub2_boot_path }}}/grub.cfg ^[\s]*set[\s]+superusers="(?i)\b(?!(?:root|admin|administrator)\b)(\w+)".*\n[\s]*export[\s]+superusers[\s]*$ 1