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1c51e4cec4
* 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>
135 lines
3.7 KiB
Bash
Executable File
135 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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# run-shellcheck
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#
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# CIS Debian Hardening
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#
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#
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# 1.7.2.2 Ensure AppArmor is enabled in the bootloader configuration (Scored)
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#
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set -e # One error, it's over
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set -u # One variable unset, it's over
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# shellcheck disable=2034
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HARDENING_LEVEL=3
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# shellcheck disable=2034
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DESCRIPTION="Activate AppArmor to enforce permissions control."
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PACKAGES='apparmor apparmor-utils'
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# This function will be called if the script status is on enabled / audit mode
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audit() {
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ERROR=0
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for PACKAGE in $PACKAGES; do
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is_pkg_installed "$PACKAGE"
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if [ "$FNRET" != 0 ]; then
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crit "$PACKAGE is absent!"
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ERROR=1
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else
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ok "$PACKAGE is installed"
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fi
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done
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if [ "$ERROR" = 0 ]; then
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is_pkg_installed "grub-pc"
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if [ "$FNRET" != 0 ]; then
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if [ "$IS_CONTAINER" -eq 1 ]; then
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ok "Grub is not installed in container"
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else
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warn "Grub is not installed"
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exit 128
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fi
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else
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ERROR=0
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RESULT=$($SUDO_CMD grep "^\s*linux" /boot/grub/grub.cfg)
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# define custom IFS and save default one
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d_IFS=$IFS
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c_IFS=$'\n'
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IFS=$c_IFS
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for line in $RESULT; do
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if [[ ! "$line" =~ "apparmor=1" ]] || [[ ! "$line" =~ "security=apparmor" ]]; then
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crit "$line is not configured"
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ERROR=1
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fi
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done
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IFS=$d_IFS
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if [ "$ERROR" = 0 ]; then
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ok "$PACKAGES are configured"
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fi
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fi
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fi
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}
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# This function will be called if the script status is on enabled mode
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apply() {
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for PACKAGE in $PACKAGES; do
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is_pkg_installed "$PACKAGE"
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if [ "$FNRET" = 0 ]; then
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ok "$PACKAGE is installed"
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else
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crit "$PACKAGE is absent, installing it"
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apt_install "$PACKAGE"
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fi
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done
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is_pkg_installed "grub-pc"
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if [ "$FNRET" != 0 ]; then
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if [ "$IS_CONTAINER" -eq 1 ]; then
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ok "Grub is not installed in container"
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else
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warn "You should use grub. Install it yourself"
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fi
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else
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ERROR=0
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RESULT=$($SUDO_CMD grep "^\s*linux" /boot/grub/grub.cfg)
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# define custom IFS and save default one
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d_IFS=$IFS
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c_IFS=$'\n'
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IFS=$c_IFS
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for line in $RESULT; do
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if [[ ! $line =~ "apparmor=1" ]] || [[ ! $line =~ "security=apparmor" ]]; then
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crit "$line is not configured"
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ERROR=1
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fi
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done
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IFS=$d_IFS
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if [ $ERROR = 1 ]; then
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$SUDO_CMD sed -i "s/GRUB_CMDLINE_LINUX=\"/GRUB_CMDLINE_LINUX=\"apparmor=1 security=apparmor /" /etc/default/grub
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$SUDO_CMD update-grub
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else
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ok "$PACKAGES are configured"
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fi
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fi
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$CIS_ROOT_DIR" ]; then
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echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
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echo "Cannot source CIS_ROOT_DIR variable, aborting."
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exit 128
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fi
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# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
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if [ -r "$CIS_ROOT_DIR"/lib/main.sh ]; then
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# shellcheck source=../../lib/main.sh
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. "$CIS_ROOT_DIR"/lib/main.sh
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else
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echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_ROOT_DIR in /etc/default/cis-hardening"
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exit 128
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fi
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