SV-215140r610931: The audit system must take appropriate action when the network cannot be used to off-load audit records. | Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide

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Assessment Title

Rule Text

The audit system must take appropriate action when the network cannot be used to off-load audit records.

Description

Discussion Text

Information stored in one location is vulnerable to accidental or incidental deletion or alteration. Off-loading is a common process in information systems with limited audit storage capacity.

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

IA Controls

NIST SP 800-53

Not mappedCCI-001851V-75859SV-90539

References

DPMS Target Canonical Ubuntu 16.04 LTS DISA DPMS Target Canonical Ubuntu 16.04 LTS 4011

Checks

DISA STIG (Manual Reference)

Verify that the audit system takes appropriate action if the network cannot be used to off-load audit records.

Check what action will take place if the network connection fails with the following command:

# sudo grep -iw "network_failure" /etc/audisp/audisp-remote.conf

network_failure_action = stop

If the value of the “network_failure_action” option is not "syslog", "single", or "halt", or the line is commented out, this is a finding.

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.ubuntu1604:def:245
file="/etc/audisp/audisp-remote.conf"
if [ ! -f "$file" ]; then echo "PASS"; exit 0; fi
if grep -qE "(?i)^\\s*network_failure_action\\s*=\\s*(syslog|single|halt)\\s*$" "$file"; then echo "PASS"; exit 0; else echo "FAIL"; exit 1; fi

Remediation

Configure the Ubuntu operating system to take appropriate action when the network cannot be used to off-load audit records.

Add, edit or uncomment the "network_failure_action" option in "/etc/audisp/audisp-remote.conf". Set it to "syslog", "single" or "halt" like the below example:

network_failure_action = single