mirror of
https://github.com/ovh/debian-cis.git
synced 2024-11-22 13:37:02 +01:00
135 lines
3.7 KiB
Bash
Executable File
135 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# run-shellcheck
|
|
#
|
|
# CIS Debian Hardening
|
|
#
|
|
|
|
#
|
|
# 1.7.2.2 Ensure AppArmor is enabled in the bootloader configuration (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="Activate AppArmor to enforce permissions control."
|
|
|
|
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
|
|
is_pkg_installed "grub-common"
|
|
if [ "$FNRET" != 0 ]; then
|
|
if [ "$IS_CONTAINER" -eq 1 ]; then
|
|
ok "Grub is not installed in container"
|
|
else
|
|
warn "Grub is not installed"
|
|
exit 128
|
|
fi
|
|
else
|
|
ERROR=0
|
|
RESULT=$($SUDO_CMD grep "^\s*linux" /boot/grub/grub.cfg)
|
|
|
|
# define custom IFS and save default one
|
|
d_IFS=$IFS
|
|
c_IFS=$'\n'
|
|
IFS=$c_IFS
|
|
for line in $RESULT; do
|
|
if [[ ! "$line" =~ "apparmor=1" ]] || [[ ! "$line" =~ "security=apparmor" ]]; then
|
|
crit "$line is not configured"
|
|
ERROR=1
|
|
fi
|
|
done
|
|
IFS=$d_IFS
|
|
if [ "$ERROR" = 0 ]; then
|
|
ok "$PACKAGES are configured"
|
|
|
|
fi
|
|
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 [ "$FNRET" = 0 ]; then
|
|
ok "$PACKAGE is installed"
|
|
else
|
|
crit "$PACKAGE is absent, installing it"
|
|
apt_install "$PACKAGE"
|
|
fi
|
|
done
|
|
|
|
is_pkg_installed "grub-pc"
|
|
if [ "$FNRET" != 0 ]; then
|
|
if [ "$IS_CONTAINER" -eq 1 ]; then
|
|
ok "Grub is not installed in container"
|
|
else
|
|
warn "You should use grub. Install it yourself"
|
|
fi
|
|
else
|
|
ERROR=0
|
|
RESULT=$($SUDO_CMD grep "^\s*linux" /boot/grub/grub.cfg)
|
|
|
|
# define custom IFS and save default one
|
|
d_IFS=$IFS
|
|
c_IFS=$'\n'
|
|
IFS=$c_IFS
|
|
for line in $RESULT; do
|
|
if [[ ! $line =~ "apparmor=1" ]] || [[ ! $line =~ "security=apparmor" ]]; then
|
|
crit "$line is not configured"
|
|
ERROR=1
|
|
fi
|
|
done
|
|
IFS=$d_IFS
|
|
|
|
if [ $ERROR = 1 ]; then
|
|
$SUDO_CMD sed -i "s/GRUB_CMDLINE_LINUX=\"/GRUB_CMDLINE_LINUX=\"apparmor=1 security=apparmor /" /etc/default/grub
|
|
$SUDO_CMD update-grub
|
|
else
|
|
ok "$PACKAGES are configured"
|
|
fi
|
|
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
|