chore: add new scripts for debian 12

- package_manager_is_configured         -> 1.2.1.2
- ptrace_scope_is_restricted            -> 1.5.2
- gdm_is_removed.sh                     -> 1.7.1
- dnsmasq_is_disabled.sh                -> 2.1.5

bin/hardening/package_manager_is_configured.sh

@@ -0,0 +1,66 @@
+#!/bin/bash
+
+# run-shellcheck
+#
+# CIS Debian Hardening
+#
+
+#
+# Ensure package manager repositories are configured (Manual)
+#
+
+set -e # One error, it's over
+set -u # One variable unset, it's over
+
+# shellcheck disable=2034
+HARDENING_LEVEL=1
+# shellcheck disable=2034
+DESCRIPTION="Ensure apt has source list"
+
+# CIS recommends to execute "apt-cache policy" to ensure the configuration is correct
+# this is not convenient to test, we check the presence of sources list in /var/lib/apt/lists/
+APT_LIB_PATH="/var/lib/apt/lists/"
+# files that are going to be present anyway
+MANDATORY_FILES="lock auxfiles partial"
+
+# This function will be called if the script status is on enabled / audit mode
+audit() {
+    apt update >/dev/null 2>&1 || true
+
+    # shellcheck disable=2012
+    if [ "$(ls "$APT_LIB_PATH" | wc -l)" -ne "$(wc -w <<<"$MANDATORY_FILES")" ]; then
+        ok "apt package manager is configured"
+    else
+        crit "there is no source file, apt is not configured"
+    fi
+}
+
+# This function will be called if the script status is on enabled mode
+apply() {
+    warn "This recommendation can only be resolved manually"
+}
+
+# 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