SV-258161r958416: RHEL 9 must label all offloaded audit logs before sending them to the central log server. | Red Hat Enterprise Linux 9 STIG SCAP Benchmark

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Assessment Title

Rule Text

RHEL 9 must label all offloaded audit logs before sending them to the central log server.

Description

Discussion Text

Enriched logging is needed to determine who, what, and when events occur on a system. Without this, determining root cause of an event will be much more difficult. When audit logs are not labeled before they are sent to a central log server, the audit data will not be able to be analyzed and tied back to the correct system. Satisfies: SRG-OS-000039-GPOS-00017, SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224

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

IA Controls

NIST SP 800-53

Not mappedCCI-000132Not mappedCCI-001851

References

DPMS Target Red Hat Enterprise Linux 9 DISA DPMS Target Red Hat Enterprise Linux 9 5551

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.rhel9os:def:258161
# RHEL 9 must label all offloaded audit logs before sending them to the central log server.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# /etc/audit/auditd.conf: name_format = hostname, fqd or numeric
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  ( (sed -En 's/(?i)^\s*name_format\s*=\s*(\w+)\s*(?:#.*)?$/\1/p' '/etc/audit/auditd.conf') | grep -Pq '(?i)^hostname$' ) || ( (sed -En 's/(?i)^\s*name_format\s*=\s*(\w+)\s*(?:#.*)?$/\1/p' '/etc/audit/auditd.conf') | grep -Pq '(?i)^fqd$' ) || ( (sed -En 's/(?i)^\s*name_format\s*=\s*(\w+)\s*(?:#.*)?$/\1/p' '/etc/audit/auditd.conf') | grep -Pq '(?i)^numeric$' )
}

if test_1; 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:mil.disa.stig.rhel9os:def:258161

if [ ! -f "/etc/audit/auditd.conf" ]; then
  echo "PASS"
  exit 0
fi

grep -qE "^name_format\s*=\s*(hostname|fqd|numeric)$" /etc/audit/auditd.conf
if [ $? -eq 0 ]; then
  echo "PASS"
  exit 0
else
  echo "FAIL"
  exit 1
fi

Remediation

Edit the /etc/audit/auditd.conf file and add or update the "name_format" option:

name_format = hostname

The audit daemon must be restarted for changes to take effect.