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102 lines
2.5 KiB
Bash
Executable File
102 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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#
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# CIS Debian Hardening
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#
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#
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# 1.6.2.1 Activate AppArmor (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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HARDENING_LEVEL=3
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DESCRIPTION="Activate AppArmor to enforce permissions control."
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PACKAGE='apparmor'
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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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is_pkg_installed $PACKAGE
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if [ $FNRET != 0 ]; then
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crit "$PACKAGE is absent!"
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else
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ok "$PACKAGE is installed"
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fi
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ERROR=0
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RESULT=$($SUDO_CMD grep "^\s*linux" /boot/grub/grub.cfg)
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# define custom IFS and save default one
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d_IFS=$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 [ $ERROR = 0 ]; then
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ok "$PACKAGE is configured"
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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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is_pkg_installed $PACKAGE
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if [ $FNRET != 0 ]; then
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crit "$PACKAGE is not installed, please install $PACKAGE and configure it"
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else
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ok "$PACKAGE is installed"
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fi
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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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$SUDO_CMD update-grub
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else
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ok "$PACKAGE is configured"
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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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. /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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. $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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