SV-281289r1166819: RHEL 10 must disable Bluetooth. | Red Hat Enterprise Linux 10 STIG SCAP Benchmark

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Assessment Title

Rule Text

RHEL 10 must disable Bluetooth.

Description

Discussion Text

This requirement applies to wireless peripheral technologies (e.g., wireless mice, keyboards, displays, etc.) used with RHEL 10 systems. Wireless peripherals (e.g., Wi-Fi/Bluetooth/IR keyboards, mice and pointing devices, and near field communications [NFC]) present a unique challenge by creating an open, unsecured port on a computer. Wireless peripherals must meet DOD requirements for wireless data transmission and be approved for use by the authorizing official. Even though some wireless peripherals, such as mice and pointing devices, do not ordinarily carry information that must be protected, modification of communications with these wireless peripherals may be used to compromise the RHEL 10 operating system. Satisfies: SRG-OS-000095-GPOS-00049, SRG-OS-000300-GPOS-00118

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

IA Controls

NIST SP 800-53

Not mappedCCI-000381Not mappedCCI-001443

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:281289
# RHEL 10 must disable Bluetooth.
# 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 bluetooth /bin/false'
# textfilecontent54_object (textfilecontent54_test)
test_1() {
  grep -rqP --include='*' '^[ \t]*install[ \t]+bluetooth[ \t]+/bin/false[ \t]*$' '/etc/modprobe.d' &>/dev/null
}
# /etc/modprobe.d contains a file that contains 'blacklist bluetooth'
# textfilecontent54_object (textfilecontent54_test)
test_2() {
  grep -rqP --include='*' '^[ \t]*blacklist[ \t]+bluetooth[ \t]*$' '/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.rhel10os:def:281289

if [ -f /etc/modprobe.d/bluetooth.conf ]; then
    if grep -q "^[ \t]*install[ \t]+bluetooth[ \t]+/bin/false[ \t]*$" /etc/modprobe.d/bluetooth.conf && \
       grep -q "^[ \t]*blacklist[ \t]+bluetooth[ \t]*$" /etc/modprobe.d/bluetooth.conf; then
        echo "PASS"
        exit 0
    fi
fi

echo "FAIL"
exit 1

Remediation

Configure RHEL 10 to disable the Bluetooth adapter when not in use.

Add the following lines to the file "/etc/modprobe.d/bluetooth.conf" (or create "bluetooth.conf" if it does not exist):

$ sudo vi /etc/modprobe.d/bluetooth.conf

install bluetooth /bin/false
blacklist bluetooth

Reboot the system for the settings to take effect.