feat: add debian12 scripts

- auditd_logs_full_halt.sh			-> 6.3.2.3
- systemd_journal_upload_remote_auth.sh		-> 6.2.1.2.2
- sudo_auth_timeout.sh 				-> 5.2.6
- libpam_modules_is_installed.sh 		-> 5.3.1.2
- ufw_not_installed_with_nftables.sh 		-> 4.2.2
- ufw_not_installed_with_iptables.sh 		-> 4.3.1.3

bin/hardening/auditd_logs_full_halt.sh

@@ -0,0 +1,89 @@
+#!/bin/bash
+
+# run-shellcheck
+#
+# CIS Debian Hardening
+#
+
+#
+# Ensure system is disabled when audit logs are full (Automated)
+#
+
+set -e # One error, it's over
+set -u # One variable unset, it's over
+
+# shellcheck disable=2034
+HARDENING_LEVEL=4
+# shellcheck disable=2034
+DESCRIPTION="Ensure system is disabled when audit logs are full"
+AUDIT_CONF="/etc/audit/auditd.conf"
+
+# This function will be called if the script status is on enabled / audit mode
+# shellcheck disable=2120
+audit() {
+    local disk_full_action=""
+    local disk_error_action=""
+
+    DISK_FULL_ACTION_IS_VALID=0
+    DISK_ERROR_ACTION_IS_VALID=0
+
+    # shellcheck disable=2016
+    # otherwise $2 will interpreted in awk, this is not what is intended
+    disk_full_action=$($SUDO_CMD awk -F '=' '/^[[:space:]]?disk_full_action/ {print $2}' "$AUDIT_CONF" | sed 's/\ //g')
+    # shellcheck disable=2016
+    disk_error_action=$($SUDO_CMD awk -F '=' '/^[[:space:]]?disk_error_action/ {print $2}' "$AUDIT_CONF" | sed 's/\ //g')
+
+    if [ "$disk_full_action" != "halt" ] && [ "$disk_full_action" != 'single' ]; then
+        DISK_FULL_ACTION_IS_VALID=1
+        crit "'disk_full_action' is not configured to 'halt' or 'single'"
+        warn "The recommendation is to stop the system when the logs disk is full. Make sure to understand the consequences before applying it"
+    else
+        ok "'disk_full_action' is configured to 'halt' or 'single'"
+    fi
+
+    if [ "$disk_error_action" != "halt" ] && [ "$disk_error_action" != 'single' ] && [ "$disk_error_action" != 'syslog' ]; then
+        DISK_ERROR_ACTION_IS_VALID=1
+        crit "'disk_error_action' is not configured to 'syslog', 'halt' or 'single'"
+        warn "The recommendation is to stop the system when there are errors on the logs disk. Make sure to understand the consequences before applying it"
+    else
+        ok "'disk_error_action' is configured to 'syslog', 'halt' or 'single'"
+    fi
+
+}
+
+# This function will be called if the script status is on enabled mode
+apply() {
+    audit
+    if [ "$DISK_FULL_ACTION_IS_VALID" -eq 1 ]; then
+        replace_in_file "$AUDIT_CONF" "^[[:space:]]\?disk_full_action" "disk_full_action = halt"
+    fi
+
+    if [ "$DISK_ERROR_ACTION_IS_VALID" -eq 1 ]; then
+        replace_in_file "$AUDIT_CONF" "^[[:space:]]\?disk_error_action" "disk_error_action = halt"
+    fi
+}
+
+# This function will check config parameters required
+check_config() {
+    :
+}
+
+# Source Root Dir Parameter
+if [ -r /etc/default/cis-hardening ]; then
+    # shellcheck source=../../debian/default
+    . /etc/default/cis-hardening
+fi
+if [ -z "$CIS_LIB_DIR" ]; then
+    echo "There is no /etc/default/cis-hardening file nor cis-hardening directory in current environment."
+    echo "Cannot source CIS_LIB_DIR variable, aborting."
+    exit 128
+fi
+
+# Main function, will call the proper functions given the configuration (audit, enabled, disabled)
+if [ -r "${CIS_LIB_DIR}"/main.sh ]; then
+    # shellcheck source=../../lib/main.sh
+    . "${CIS_LIB_DIR}"/main.sh
+else
+    echo "Cannot find main.sh, have you correctly defined your root directory? Current value is $CIS_LIB_DIR in /etc/default/cis-hardening"
+    exit 128
+fi