SV-280934r1165157: RHEL 10 must have GNU Privacy Guard (GPG) signature verification enabled for all software repositories. | Red Hat Enterprise Linux 10 STIG SCAP Benchmark

Loading benchmark…

Assessment Title

Rule Text

RHEL 10 must have GNU Privacy Guard (GPG) signature verification enabled for all software repositories.

Description

Discussion Text

Changes to any software components can have significant effects on the overall security of the operating system. This requirement ensures the software has not been tampered with and has been provided by a trusted vendor. All software packages must be signed with a cryptographic key recognized and approved by the organization. Verifying the authenticity of software prior to installation validates the integrity of the software package received from a vendor.

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

IA Controls

NIST SP 800-53

Not mappedCCI-003992

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.

#!/bin/bash
# Reconstructed from oval:mil.disa.stig.rhel10os:def:280934
# RHEL 10 must have GNU Privacy Guard (GPG) signature verification enabled for all software repositories.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# Every /etc/yum.repos.d/*.repo:[{reponame}] has a gpgcheck entry set to 1.
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  (grep -rhoP --include='*.repo' '^\s*\[[^]]+\]\s*\n(?:[^[]*\n)*' '/etc/yum.repos.d') | grep -Pq '\n\s*gpgcheck\s*=\s*(True|1|yes)\s*(\n|$)'
}
# No /etc/yum.repos.d/*.repo:[{reponame}] has a gpgcheck entry set to 0.
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  (grep -rhoP --include='*.repo' '^\s*\[[^]]+\]\s*\n(?:[^[]*\n)*' '/etc/yum.repos.d') | grep -Pq '\n\s*gpgcheck\s*=\s*(False|0|no)\s*(\n|$)'
}

if ( test_1 && test_2 ); then
  echo "PASS"
else
  echo "FAIL"
fi

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:280934

if [ ! -d "/etc/yum.repos.d" ]; then echo "PASS"; exit 0; fi
for repo in /etc/yum.repos.d/*.repo; do
    if [ ! -f "$repo" ]; then continue; fi
    grep -qE '^\s*gpgcheck\s*=1\s*$' "$repo" && continue
    grep -qE '^\s*gpgcheck\s*=0\s*$' "$repo" && { echo "FAIL"; exit 1; }
done
echo "PASS"
exit 0

Remediation

Configure RHEL 10 software repositories defined in "/etc/yum.repos.d/" to have "gpgcheck" enabled with the following command:

$ sudo sed -i 's/gpgcheck\s*=.*/gpgcheck=1/g' /etc/yum.repos.d/*