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

From SOLARIS 10 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECSC-1

Associated with: CCI-000366

SV-27069r1_rule All GIDs referenced in the /etc/passwd file must be defined in the /etc/group file.

Vulnerability discussion

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.

Check content

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

Add a group to the system for each GID referenced that does not have a corresponding group. #/usr/sbin/groupadd < group >

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