mirror of
https://github.com/ovh/debian-cis.git
synced 2024-12-23 14:35:26 +01:00
76 lines
2.5 KiB
Bash
Executable File
76 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
#
|
|
# CIS Debian 7 Hardening
|
|
#
|
|
|
|
#
|
|
# 7.2.7 Enable RFC-recommended Source Route Validation (Scored)
|
|
#
|
|
|
|
set -e # One error, it's over
|
|
set -u # One variable unset, it's over
|
|
|
|
SYSCTL_PARAMS='net.ipv4.conf.all.rp_filter=1 net.ipv4.conf.default.rp_filter=1'
|
|
|
|
# This function will be called if the script status is on enabled / audit mode
|
|
audit () {
|
|
for SYSCTL_VALUES in $SYSCTL_PARAMS; do
|
|
SYSCTL_PARAM=$(echo $SYSCTL_VALUES | cut -d= -f 1)
|
|
SYSCTL_EXP_RESULT=$(echo $SYSCTL_VALUES | cut -d= -f 2)
|
|
debug "$SYSCTL_PARAM should be set to $SYSCTL_EXP_RESULT"
|
|
has_sysctl_param_expected_result $SYSCTL_PARAM $SYSCTL_EXP_RESULT
|
|
if [ $FNRET != 0 ]; then
|
|
crit "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT"
|
|
elif [ $FNRET = 255 ]; then
|
|
warn "$SYSCTL_PARAM does not exist -- Typo?"
|
|
else
|
|
ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
|
|
fi
|
|
done
|
|
}
|
|
|
|
# This function will be called if the script status is on enabled mode
|
|
apply () {
|
|
for SYSCTL_VALUES in $SYSCTL_PARAMS; do
|
|
SYSCTL_PARAM=$(echo $SYSCTL_VALUES | cut -d= -f 1)
|
|
SYSCTL_EXP_RESULT=$(echo $SYSCTL_VALUES | cut -d= -f 2)
|
|
debug "$SYSCTL_PARAM should be set to $SYSCTL_EXP_RESULT"
|
|
has_sysctl_param_expected_result $SYSCTL_PARAM $SYSCTL_EXP_RESULT
|
|
if [ $FNRET != 0 ]; then
|
|
warn "$SYSCTL_PARAM was not set to $SYSCTL_EXP_RESULT -- Fixing"
|
|
set_sysctl_param $SYSCTL_PARAM $SYSCTL_EXP_RESULT
|
|
sysctl -w net.ipv4.route.flush=1 > /dev/null
|
|
elif [ $FNRET = 255 ]; then
|
|
warn "$SYSCTL_PARAM does not exist -- Typo?"
|
|
else
|
|
ok "$SYSCTL_PARAM correctly set to $SYSCTL_EXP_RESULT"
|
|
fi
|
|
done
|
|
}
|
|
|
|
# This function will check config parameters required
|
|
check_config() {
|
|
:
|
|
}
|
|
|
|
# Source Root Dir Parameter
|
|
if [ ! -r /etc/default/cis-hardening ]; then
|
|
echo "There is no /etc/default/cis-hardening file, cannot source CIS_ROOT_DIR variable, aborting"
|
|
exit 128
|
|
else
|
|
. /etc/default/cis-hardening
|
|
if [ -z ${CIS_ROOT_DIR:-} ]; then
|
|
echo "No CIS_ROOT_DIR variable, aborting"
|
|
exit 128
|
|
fi
|
|
fi
|
|
|
|
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
|
|
if [ -r $CIS_ROOT_DIR/lib/main.sh ]; then
|
|
. $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
|