debian-cis/bin/hardening/1.7.1.4_enforcing_apparmor.sh
Thibault Ayanides 1c51e4cec4
Check that package are installed before launching check (#69)
* FIX(1.6.1,1.7.1.x): check if apparmor and grub is installed

* FIX(2.2.15): check package install

* FIX(4.2.x): check package install

* FIX(5.1.x): check crontab files exist

* FIX(5.2.1): check package install

* FIX(99.3.3.x): check conf file exist

* Remove useless SUDO_CMD

* Deal with non existant /run/shm

* Replace exit code 128 by exit code 2

fix #65

Co-authored-by: GoldenKiwi <thibault.dewailly@corp.ovh.com>
2021-03-25 14:01:57 +01:00

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#!/bin/bash
# run-shellcheck
#
# CIS Debian Hardening
#
#
# 1.7.1.4 Ensure all AppArmor profiles are enforcing (Scored)
#
set -e # One error, it's over
set -u # One variable unset, it's over
# shellcheck disable=2034
HARDENING_LEVEL=3
# shellcheck disable=2034
DESCRIPTION="Enforce Apparmor profiles."
PACKAGES='apparmor apparmor-utils'
# This function will be called if the script status is on enabled / audit mode
audit() {
ERROR=0
for PACKAGE in $PACKAGES; do
is_pkg_installed "$PACKAGE"
if [ "$FNRET" != 0 ]; then
crit "$PACKAGE is absent!"
ERROR=1
else
ok "$PACKAGE is installed"
fi
done
if [ "$ERROR" = 0 ]; then
RESULT_UNCONFINED=$($SUDO_CMD apparmor_status | grep "^0 processes are unconfined but have a profile defined")
RESULT_COMPLAIN=$($SUDO_CMD apparmor_status | grep "^0 profiles are in complain mode.")
if [ -n "$RESULT_UNCONFINED" ]; then
ok "No profiles are unconfined"
else
crit "Some processes are unconfined while they have defined profile"
fi
if [ -n "$RESULT_COMPLAIN" ]; then
ok "No profiles are in complain mode"
else
crit "Some processes are in complain mode"
fi
fi
}
# This function will be called if the script status is on enabled mode
apply() {
for PACKAGE in $PACKAGES; do
is_pkg_installed "$PACKAGE"
if [ "$FNRET" != 0 ]; then
crit "$PACKAGE is absent!"
apt_install "$PACKAGE"
else
ok "$PACKAGE is installed"
fi
done
RESULT_UNCONFINED=$(apparmor_status | grep "^0 processes are unconfined but have a profile defined")
RESULT_COMPLAIN=$(apparmor_status | grep "^0 profiles are in complain mode.")
if [ -n "$RESULT_UNCONFINED" ]; then
ok "No profiles are unconfined"
else
warn "Some processes are unconfined while they have defined profile, setting profiles to enforce mode"
aa-enforce /etc/apparmor.d/*
fi
if [ -n "$RESULT_COMPLAIN" ]; then
ok "No profiles are in complain mode"
else
warn "Some processes are in complain mode, setting profiles to enforce mode"
aa-enforce /etc/apparmor.d/*
fi
}
# 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 "$CIS_ROOT_DIR" ]; then
echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
echo "Cannot source CIS_ROOT_DIR variable, aborting."
exit 128
fi
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
if [ -r "$CIS_ROOT_DIR"/lib/main.sh ]; then
# shellcheck source=../../lib/main.sh
. "$CIS_ROOT_DIR"/lib/main.sh
else
echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
exit 128
fi