85 lines
2.5 KiB
Bash
Executable File
85 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
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#
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# harbian-audit for Debian GNU/Linux 7/8/9/10 or CentOS Hardening
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#
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#
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# 7.1.1 Disable IP Forwarding (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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HARDENING_EXCEPTION=gw
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SYSCTL_PARAM='net.ipv4.ip_forward'
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SYSCTL_EXP_RESULT=0
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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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has_sysctl_param_expected_result $SYSCTL_PARAM $SYSCTL_EXP_RESULT
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if [ $FNRET != 0 ]; then
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if [ $ISEXCEPTION -eq 1 ]; then
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warn "$PACKAGE is installed! But Exception is set to 1, so it's pass!"
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else
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crit "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT"
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fi
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elif [ $FNRET = 255 ]; then
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warn "$SYSCTL_PARAM does not exist -- Typo?"
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else
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ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
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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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has_sysctl_param_expected_result $SYSCTL_PARAM $SYSCTL_EXP_RESULT
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if [ $FNRET != 0 ]; then
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if [ $ISEXCEPTION -eq 1 ]; then
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warn "$PACKAGE is installed! But the exception is set to true, so don't need any operate."
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else
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warn "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT -- Fixing"
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set_sysctl_param $SYSCTL_PARAM $SYSCTL_EXP_RESULT
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sysctl -w net.ipv4.route.flush=1 > /dev/null
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fi
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elif [ $FNRET = 255 ]; then
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warn "$SYSCTL_PARAM does not exist -- Typo?"
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else
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ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
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fi
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}
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# This function will create the config file for this check with default values
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create_config() {
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cat <<EOF
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status=disabled
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# Put here exception to pass this case, if set is 1, don't need apply, let to pass.
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ISEXCEPTION=0
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EOF
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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. /etc/default/cis-hardening
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fi
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if [ -z "$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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