SV-253071r958478: TOSS must disable IEEE 1394 (FireWire) Support. | Tri-Lab Operating System Stack (TOSS) 4 STIG SCAP Benchmark

Loading benchmark…

Assessment Title

Rule Text

TOSS must disable IEEE 1394 (FireWire) Support.

Description

Discussion Text

It is detrimental for operating systems to provide, or install by default, functionality exceeding requirements or mission objectives. These unnecessary capabilities or services are often overlooked and therefore may remain unsecured. They increase the risk to the platform by providing additional attack vectors. The IEEE 1394 (FireWire) is a serial bus standard for high-speed real-time communication. Disabling FireWire protects the system against exploitation of any flaws in its implementation.

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381

References

DPMS Target TOSS 4 DISA DPMS Target TOSS 4 5469

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.toss4os:def:253071
# TOSS must disable IEEE 1394 (FireWire) Support.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.

# /etc/modprobe.d contains a file that contains 'install firewire-core /bin/false'
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  grep -rqP --include='*' '^[ \t]*install[ \t]+firewire-core[ \t]+/bin/false[ \t]*$' '/etc/modprobe.d' &>/dev/null
}
# /etc/modprobe.d contains a file that contains 'blacklist firewire-core'
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  grep -rqP --include='*' '^[ \t]*blacklist[ \t]+firewire-core[ \t]*$' '/etc/modprobe.d' &>/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
# OVAL Definition: oval:mil.disa.stig.toss4os:def:253071

if grep -q "^[ \t]*install[ \t]+firewire-core[ \t]+/bin/false[ \t]*$" /etc/modprobe.d/* && \
   grep -q "^[ \t]*blacklist[ \t]+firewire-core[ \t]*$" /etc/modprobe.d/*; then
    echo "PASS"
    exit 0
else
    echo "FAIL"
    exit 1
fi

Remediation

Configure the operating system to disable the ability to use the firewire-core kernel module.

Add or update the following lines in the file "/etc/modprobe.d/blacklist.conf":

install firewire-core /bin/false
blacklist firewire-core

Reboot the system for the settings to take effect.