SV-223168r612236: Background submission of information to Mozilla must be disabled. | Mozilla Firefox Security Technical Implementation Guide

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Assessment Title

Rule Text

Background submission of information to Mozilla must be disabled.

Description

Discussion Text

There should be no background submission of technical and other information from DoD computers to Mozilla with portions posted publically.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381SV-93759V-79053

References

DPMS Target Mozilla Firefox DISA DPMS Target Mozilla Firefox 4097

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.mozilla.firefox.rhel:def:250

# Check for one installation of Mozilla Firefox
if [ ! -e /path/to/mozilla/firefox/var/50 ]; then
  echo "FAIL"
  exit 1
fi

# Check for javascript configuration file
if [ ! -e /path/to/mozilla/firefox/config/js ]; then
  echo "PASS"
  exit 0
fi

# Check if preferences file starts with //
if [ ! -s /path/to/mozilla/firefox/prefs ] || ! grep -q "^//" /path/to/mozilla/firefox/prefs; then
  echo "FAIL"
  exit 1
fi

# Check if general.config.obscure_value is set to 0
if grep -q "^\\s*pref\\(\\s*\"general\\.config\\.obscure_value\"\\s*,\\s*0\\s*\\)\\s*$" /path/to/mozilla/firefox/config/js; then
  echo "PASS"
  exit 0
else
  echo "FAIL"
  exit 1
fi

Remediation

Ensure the preferences "datareporting.policy.dataSubmissionEnabled" is set and locked to "false".