The Oracle Linux operating system must be configured so that all Group Identifiers (GIDs) referenced in the /etc/passwd file are defined in the /etc/group file.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-221722 | OL07-00-020300 | SV-221722r958482_rule | CCI-000764 | low |
| Description | ||||
| If a user is assigned the GID of a group not existing 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 | |||
| Oracle Linux 7 Security Technical Implementation Guide | 2025-05-08 | |||
Details
Check Text (C-221722r958482_chk)
Verify all GIDs referenced in the "/etc/passwd" file are defined in the "/etc/group" file.
Check that all referenced GIDs exist with the following command:
# pwck -r
If GIDs referenced in then "/etc/passwd" file are returned as not defined in the "/etc/group" file, this is a finding.
Fix Text (F-23426r419239_fix)
Configure the system to define all GIDs found in the "/etc/passwd" file by modifying the "/etc/group" file to add any non-existent group referenced in the "/etc/passwd" file, or change the GIDs referenced in the "/etc/passwd" file to a group that exists in "/etc/group".