All GIDs referenced in the /etc/passwd file must be defined in the /etc/group file.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-781	GEN000380	SV-27069r1_rule	ECSC-1	Low

Description
If a user is assigned the GID of a group not existing on the system, and a group with the same GID is subsequently created, the user may have unintended rights to the group.

STIG	Date
SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE	2015-10-01

Details

Check Text ( C-27986r1_chk )
Perform the following to ensure there are no GIDs referenced in /etc/passwd not defined in /etc/group. # logins -o | awk -F: '$3 == ""' If any lines are returned, there are GIDs referenced in /etc/passwd that are not defined in /etc/group, this is a finding.

Fix Text (F-33975r1_fix)
Add a group to the system for each GID referenced that does not have a corresponding group. #/usr/sbin/groupadd < group >