mirror of
https://github.com/ovh/debian-cis.git
synced 2024-11-22 13:37:02 +01:00
0b6ea0d97e
* add new kernel module detection (enable & listing) with detection of monolithic kernel * change way to detect if file system type is disabled * add global IS_CONTAINER variable * disable test for 3.4.x to be consistent with others * add cli options to override configuration loglevel
79 lines
2.5 KiB
Bash
Executable File
79 lines
2.5 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# run-shellcheck
|
|
#
|
|
# CIS Debian Hardening
|
|
#
|
|
|
|
#
|
|
# 3.4.1 Ensure DCCP is disabled (Not Scored)
|
|
#
|
|
|
|
set -e # One error, it's over
|
|
set -u # One variable unset, it's over
|
|
|
|
# shellcheck disable=2034
|
|
HARDENING_LEVEL=2
|
|
# shellcheck disable=2034
|
|
DESCRIPTION="Disable Datagram Congestion Control Protocol (DCCP)."
|
|
|
|
# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
|
|
|
|
KERNEL_OPTION="CONFIG_NF_CT_PROTO_DCCP"
|
|
MODULE_NAME="dccp"
|
|
|
|
# This function will be called if the script status is on enabled / audit mode
|
|
audit() {
|
|
if [ "$IS_CONTAINER" -eq 1 ]; then
|
|
# In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
|
|
ok "Container detected, consider host enforcing or disable this check!"
|
|
else
|
|
is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
|
|
if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
|
|
crit "$MODULE_NAME is enabled!"
|
|
else
|
|
ok "$MODULE_NAME is disabled"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# This function will be called if the script status is on enabled mode
|
|
apply() {
|
|
if [ "$IS_CONTAINER" -eq 1 ]; then
|
|
# In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
|
|
ok "Container detected, consider host enforcing!"
|
|
else
|
|
is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
|
|
if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
|
|
warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
|
|
else
|
|
ok "$MODULE_NAME is disabled"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# This function will check config parameters required
|
|
check_config() {
|
|
:
|
|
}
|
|
|
|
# Source Root Dir Parameter
|
|
if [ -r /etc/default/cis-hardening ]; then
|
|
# shellcheck source=../../debian/default
|
|
. /etc/default/cis-hardening
|
|
fi
|
|
if [ -z "$CIS_ROOT_DIR" ]; then
|
|
echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
|
|
echo "Cannot source CIS_ROOT_DIR variable, aborting."
|
|
exit 128
|
|
fi
|
|
|
|
# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
|
|
if [ -r "$CIS_ROOT_DIR"/lib/main.sh ]; then
|
|
# shellcheck source=../../lib/main.sh
|
|
. "$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
|