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https://github.com/ovh/debian-cis.git
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32886d3a3d
* Replace CIS_ROOT_DIR by a more flexible system * Try to adapt the logic change to the functional tests
81 lines
2.3 KiB
Bash
Executable File
81 lines
2.3 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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# 3.5.1.1 Ensure Firewall is active (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=2
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# shellcheck disable=2034
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DESCRIPTION="Ensure firewall is active (either nftables or iptables is installed, does not check for its configuration)."
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# Note: CIS recommends your iptables rules to be persistent.
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# Do as you want, but this script does not handle this
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PACKAGES='iptables nftables'
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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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FOUND=false
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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 provides firewalling feature"
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FOUND=true
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fi
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done
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if [ "$FOUND" = false ]; then
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crit "None of the following firewall packages are installed: $PACKAGES"
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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 provides firewalling feature"
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FOUND=true
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fi
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done
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if [ "$FOUND" = false ]; then
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crit "None of the following firewall packages are installed: $PACKAGES, installing them"
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# FIXME : iptables is hardcoded, we will have to change this in the future
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# This will install nftables and iptables
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apt_install "iptables"
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fi
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$CIS_LIB_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_LIB_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 "${CIS_LIB_DIR}"/main.sh ]; then
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# shellcheck source=../../lib/main.sh
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. "${CIS_LIB_DIR}"/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_LIB_DIR in /etc/default/cis-hardening"
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exit 128
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fi
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