SV-281202r1166558: RHEL 10 must have a unique group ID (GID) for each group in "/etc/group". | Red Hat Enterprise Linux 10 STIG SCAP Benchmark

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Assessment Title

Rule Text

RHEL 10 must have a unique group ID (GID) for each group in "/etc/group".

Description

Discussion Text

To ensure accountability and prevent unauthenticated access, groups must be identified uniquely to prevent potential misuse and compromise of the system.

How this relates to the STIG checklist: STIG vs SCAP benchmark.

IA Controls

NIST SP 800-53

Not mappedCCI-000764

References

DPMS Target Red Hat Enterprise Linux 10 DISA DPMS Target Red Hat Enterprise Linux 10 5733

SCC Automation Reference

The reconstructed evaluation script behind this rule's OVAL check(s) — every module a compound check combines, with this rule's own concrete values and DISA's SCC tool's real per-module mechanism curated from static teardown of SCC releases.

Assessment Script Powered by AISandbox-executed

A standalone Shell script to assess this control automatically. Review before running it in your environment.

Syntax-checked and actually executed in an isolated sandbox (not the real system this checks) — confirmed to run without errors.

#!/bin/sh
# OVAL Definition: oval:mil.disa.stig.rhel10os:def:281202
if [ ! -f "/etc/group" ]; then echo "PASS"; exit 0; fi
declare -a group_gids=$(cat /etc/group | awk -F':' '{print $3}' | sort | uniq -d); [ ${#group_gids[@]} -eq 0 ] && echo "PASS" && exit 0 || echo "FAIL" && exit 1

Remediation

Configure RHEL 10 to contain no duplicate GIDs for interactive users.

Edit the file "/etc/group", and provide each group that has a duplicate GID with a unique GID.