SV-281111r1166285: RHEL 10 must periodically flush audit records to disk to ensure that audit records are not lost. | Red Hat Enterprise Linux 10 STIG SCAP Benchmark

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Assessment Title

Rule Text

RHEL 10 must periodically flush audit records to disk to ensure that audit records are not lost.

Description

Discussion Text

If option "freq" is not set to a value that requires audit records to be written to disk after a threshold number is reached, audit records may be lost.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000154

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:281111
# RHEL 10 must periodically flush audit records to disk to ensure that audit records are not lost.
# 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: freq = 1-100
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  ( [ "$(sed -En 's/(?i)^\s*freq\s*=\s*(\S+)\s*(?:#.*)?$/\1/p' '/etc/audit/auditd.conf')" -ge 1 ] ) && ( [ "$(sed -En 's/(?i)^\s*freq\s*=\s*(\S+)\s*(?:#.*)?$/\1/p' '/etc/audit/auditd.conf')" -le 100 ] )
}

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 Definition: oval:mil.disa.stig.rhel10os:def:281111
if [ ! -f "/etc/audit/auditd.conf" ]; then echo "PASS"; exit 0; fi
grep -qE "^\\s*freq\\s*=\\s*([1-9]|[1-9][0-9]|100)$" /etc/audit/auditd.conf && [ $(grep -cE "^\\s*freq\\s*=\\s*([1-9]|[1-9][0-9]|100)$" /etc/audit/auditd.conf) -ge 1 ] && echo "PASS"; exit 0
echo "FAIL"; exit 1

Remediation

Configure RHEL 10 to flush audit records to disk by adding or updating the following rule in "/etc/audit/rules.d/audit.rules":

freq = 100

Restart the audit daemon with the following command for changes to take effect:

$ sudo service auditd restart