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.rhel9os:def:257805
# RHEL 9 must be configured to disable the Controller Area Network kernel module.
# Per-module read mechanism curated from static teardown of DISA's SCC tool
# (SCAP Compliance Checker) -- see the SCC Automation Reference above.
# /etc/modprobe.conf, /etc/modprobe.d/* contains 'install can /bin/false'
# textfilecontent54_object (textfilecontent54_test)
test_1() {
( grep -rqP --include='*' '^[ \t]*install[ \t]+can[ \t]+/bin/false[ \t]*$' '/etc/modprobe.d' &>/dev/null ) || ( grep -Pq '^[ \t]*install[ \t]+can[ \t]+/bin/false[ \t]*$' '/etc/modprobe.conf' &>/dev/null )
}
# /etc/modprobe.conf, /etc/modprobe.d/* contains 'blacklist can'
# textfilecontent54_object (textfilecontent54_test)
test_2() {
( grep -rqP --include='*' '^[ \t]*blacklist[ \t]+can[ \t]*$' '/etc/modprobe.d' &>/dev/null ) || ( grep -Pq '^[ \t]*blacklist[ \t]+can[ \t]*$' '/etc/modprobe.conf' &>/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.rhel9os:def:257805
if grep -q "^[ \t]*install[ \t]+can[ \t]+/bin/false[ \t]*$" /etc/modprobe.d/*.conf && grep -q "^[ \t]*blacklist[ \t]+can[ \t]*$" /etc/modprobe.d/*.conf; then
echo "PASS"
exit 0
else
echo "FAIL"
exit 1
fi