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V-282490

CAT II (Medium)

All TOSS 5 interactive users must have a primary group that exists.

Rule ID

SV-282490r1200450_rule

STIG

Tri-Lab Operating System Stack (TOSS) 5 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-000764

Discussion

If a user is assigned the Group Identifier (GID) of a group that does not exist on the system, and a group with the GID is subsequently created, the user may have unintended rights to any files associated with the group.

Check Content

Verify all TOSS 5 interactive users have a valid GID using the following command:
 
$ sudo pwck -qr 
 
If the system has any interactive users with duplicate GIDs, this is a finding.

Fix Text

Configure the system so all GIDs referenced in "/etc/passwd" are defined in "/etc/group".

Edit the file "/etc/passwd" and ensure every user's GID is a valid GID.