SV-274068r1120192: Amazon Linux 2023 must use a separate file system for the system audit data path. | Amazon Linux 2023 STIG SCAP Benchmark

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Assessment Title

Rule Text

Amazon Linux 2023 must use a separate file system for the system audit data path.

Description

Discussion Text

Placing "/var/log/audit" in its own partition enables better separation between audit files and other system files and helps ensure that auditing cannot be halted due to the partition running out of space.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001849

References

DPMS Target Amazon Linux 2023 DISA DPMS Target Amazon Linux 2023 5700

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.amzlx23os:def:274068
# Amazon Linux 2023 must use a separate file system for the system audit data path.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# There is a separate file system for audit data directory.
# partition_object (partition_test)
test_1() {
  findmnt -n -o FSTYPE,OPTIONS  &>/dev/null
}
# There is a separate file system configured for audit data directory.
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  grep -Pq '' '/etc/fstab' &>/dev/null
}

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
# DISA STIG / SCAP compliance check for Amazon Linux 2023 must use a separate file system for the system audit data path (oval:mil.disa.stig.amzlx23os:def:274068)

if grep -q '^\\s*log_file\\s*=\\s*(\\S+)/\\S+\\s*$' /etc/audit/auditd.conf && grep -q '^\\s*log_file\\s*=\\s*(\\S+)/\\S+\\s*$' /etc/audit/auditd.conf | wc -l >= 1 && grep -l '^\\s*\\S+\\s*\\(/\\S+\\)\\s*$' /etc/fstab | wc -l >= 1; then
    echo "PASS"
    exit 0
else
    echo "FAIL"
    exit 1
fi

Remediation

Configure Amazon Linux 2023 to have a separate file system/partition for the system audit data path.

Migrate the system audit data path onto a separate partition.