All AlmaLinux OS 9 interactive users must have a primary group that exists.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-269366	ALMA-09-033130	SV-269366r1050249_rule		Medium

Description

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.

STIG	Date
CloudLinux AlmaLinux OS 9 Security Technical Implementation Guide	2025-05-22

Details

Check Text (C-73397r1049560_chk)

Verify that all AlmaLinux OS 9 interactive users have a valid GID with the following command:

$ pwck -r /etc/passwd

If the system has any interactive users with a nonexistent primary group, this is a finding.

Fix Text (F-73298r1048475_fix)

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