mirror of
https://github.com/ovh/debian-cis.git
synced 2024-11-22 21:47:02 +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
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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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# 3.4.1 Ensure DCCP is disabled (Not 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="Disable Datagram Congestion Control Protocol (DCCP)."
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# Note: we check /proc/config.gz to be compliant with both monolithic and modular kernels
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KERNEL_OPTION="CONFIG_NF_CT_PROTO_DCCP"
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MODULE_NAME="dccp"
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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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if [ "$IS_CONTAINER" -eq 1 ]; then
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# In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
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ok "Container detected, consider host enforcing or disable this check!"
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else
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is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
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if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
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crit "$MODULE_NAME is enabled!"
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else
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ok "$MODULE_NAME is disabled"
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fi
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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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if [ "$IS_CONTAINER" -eq 1 ]; then
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# In an unprivileged container, the kernel modules are host dependent, so you should consider enforcing it
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ok "Container detected, consider host enforcing!"
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else
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is_kernel_option_enabled "$KERNEL_OPTION" "$MODULE_NAME"
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if [ "$FNRET" = 0 ]; then # 0 means true in bash, so it IS activated
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warn "I cannot fix $MODULE_NAME, recompile your kernel or blacklist module $MODULE_NAME (/etc/modprobe.d/blacklist.conf : +install $MODULE_NAME /bin/true)"
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else
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ok "$MODULE_NAME is disabled"
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fi
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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 "$CIS_ROOT_DIR" ]; then
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echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
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echo "Cannot source CIS_ROOT_DIR variable, aborting."
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exit 128
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fi
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# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
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if [ -r "$CIS_ROOT_DIR"/lib/main.sh ]; then
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# shellcheck source=../../lib/main.sh
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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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