mirror of
https://github.com/ovh/debian-cis.git
synced 2025-08-04 14:21:15 +02:00
c2598e484e
ufw_is_installed.sh -> 4.1.1 iptables_persistent_is_not_installed.sh -> 4.1.2 ufw_is_enabled -> 4.1.3 nftables_is_not_installed.sh -> 4.3.1.2 libpam_runtime_is_version -> 5.3.1.1
98 lines
2.5 KiB
Bash
Executable File
98 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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# Ensure ufw service is enabled (Automated)
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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=3
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# shellcheck disable=2034
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DESCRIPTION="Ensure ufw service is enabled (Automated)"
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SERVICE="ufw.service"
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CREATE_SSH_RULE=""
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SSH_RULE="allow proto tcp from any to any port 22"
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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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SERVICE_ENABLED=1
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SERVICE_ACTIVE=1
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is_service_enabled "$SERVICE"
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if [ "$FNRET" -eq 0 ]; then
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ok "$SERVICE is enabled"
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SERVICE_ENABLED=0
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else
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crit "$SERVICE is not enabled"
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fi
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is_service_active "$SERVICE"
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if [ "$FNRET" -eq 0 ]; then
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ok "$SERVICE is active"
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SERVICE_ACTIVE=0
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else
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crit "$SERVICE is not active"
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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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audit
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if [ "$SERVICE_ENABLED" -ne 0 ]; then
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manage_service unmask "$SERVICE"
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manage_service enable "$SERVICE"
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fi
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if [ "$SERVICE_ACTIVE" -ne 0 ]; then
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# When running ufw enable or starting ufw via its initscript, ufw will flush its chains.
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# This is required so ufw can maintain a consistent state, but it may drop existing
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# connections (eg ssh). ufw does support adding rules before enabling the firewall.
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if [[ "$CREATE_SSH_RULE" == "true" ]]; then
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info "we are going to modify ufw rules to ensure ssh stays allowed"
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ufw "$SSH_RULE"
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fi
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manage_service start "$SERVICE"
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fi
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}
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create_config() {
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cat <<EOF
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status=audit
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# Put your custom configuration here
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CREATE_SSH_RULE="true"
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EOF
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}
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# This function will check config parameters required
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check_config() {
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:
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}
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# Source Root Dir Parameter
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if [ -r /etc/default/cis-hardening ]; then
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# shellcheck source=../../debian/default
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. /etc/default/cis-hardening
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fi
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if [ -z "$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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