Files
debian-cis/bin/hardening/wireless_interfaces_disabled.sh
damien cavagnini 532c40d311 feat: add debian12 scripts
- at_is_restricted.sh			-> 2.4.2.1
- wireless_interfaces_disabled.sh	-> 3.1.2
- bluetooth_is_disabled.sh 		-> 3.1.3
- sudo_no_nopasswd.sh 			-> 5.2.4
- aide_is_installed.sh 			-> 6.1.1
2025-07-31 12:03:36 +02:00

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#!/bin/bash
# run-shellcheck
#
# CIS Debian Hardening
#
#
# Ensure wireless interfaces are disabled (Automated)
#
set -e # One error, it's over
set -u # One variable unset, it's over
# shellcheck disable=2034
HARDENING_LEVEL=2
# shellcheck disable=2034
DESCRIPTION="Ensure wireless interfaces are disabled"
# This function will be called if the script status is on enabled / audit mode
audit() {
AVAILABLE_MODULES=""
wireless_drivers=$(find /sys/class/net/*/ -type d -name wireless)
if [ "$(wc -w <<<"$wireless_drivers")" -gt 0 ]; then
# not the most readable syntax, took as is from the CIS pdf (just changed the vars name)
for module in $(for wireless_driver in $(find /sys/class/net/*/ -type d -name wireless | xargs -0 dirname); do readlink -f "$wireless_driver"/device/driver/module; done); do
is_kernel_module_available "$module"
if [ "$FNRET" -eq 0 ]; then
# is available in kernel config, but may be disabled in modprobe
is_kernel_module_disabled "$module"
if [ "$FNRET" -eq 1 ]; then
AVAILABLE_MODULES="$AVAILABLE_MODULES $module"
fi
fi
done
fi
if [ -n "$AVAILABLE_MODULES" ]; then
crit "There are some wireless modules available: $AVAILABLE_MODULES"
else
ok "There are no wireless modules available"
fi
}
# This function will be called if the script status is on enabled mode
apply() {
audit
for module in $AVAILABLE_MODULES ]; do
echo "install $module /bin/true" >>/etc/modprobe.d/"$module".conf
info "$module has been disabled in modprobe configuration"
done
}
# This function will check config parameters required
check_config() {
:
}
# Source Root Dir Parameter
if [ -r /etc/default/cis-hardening ]; then
# shellcheck source=../../debian/default
. /etc/default/cis-hardening
fi
if [ -z "$CIS_LIB_DIR" ]; then
echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
echo "Cannot source CIS_LIB_DIR variable, aborting."
exit 128
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
if [ -r "${CIS_LIB_DIR}"/main.sh ]; then
# shellcheck source=../../lib/main.sh
. "${CIS_LIB_DIR}"/main.sh
else
echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_LIB_DIR in /etc/default/cis-hardening"
exit 128
fi