Renum 9.2.x to 5.3.x Pam password settings

renamed:    bin/hardening/9.2.1_enable_cracklib.sh -> bin/hardening/5.3.1_enable_cracklib.sh
	renamed:    bin/hardening/9.2.2_enable_lockout_failed_password.sh -> bin/hardening/5.3.2_enable_lockout_failed_password.sh
	renamed:    bin/hardening/9.2.3_limit_password_reuse.sh -> bin/hardening/5.3.3_limit_password_reuse.sh
	renamed:    tests/hardening/9.2.1_enable_cracklib.sh -> tests/hardening/5.3.1_enable_cracklib.sh
	renamed:    tests/hardening/9.2.3_limit_password_reuse.sh -> tests/hardening/5.3.2_enable_lockout_failed_password.sh
	renamed:    tests/hardening/9.2.2_enable_lockout_failed_password.sh -> tests/hardening/5.3.3_limit_password_reuse.sh

bin/hardening/5.3.3_limit_password_reuse.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+
+#
+# CIS Debian Hardening
+#
+
+#
+# 5.3.3 Ensure password reuse is limited (Scored)
+#
+
+set -e # One error, it's over
+set -u # One variable unset, it's over
+
+HARDENING_LEVEL=3
+DESCRIPTION="Limit password reuse."
+
+PACKAGE='libpam-modules'
+PATTERN='^password.*remember'
+FILE='/etc/pam.d/common-password'
+
+# This function will be called if the script status is on enabled / audit mode
+audit () {
+    is_pkg_installed $PACKAGE
+    if [ $FNRET != 0 ]; then
+        crit "$PACKAGE is not installed!"
+    else
+        ok "$PACKAGE is installed"
+        does_pattern_exist_in_file $FILE $PATTERN
+        if [ $FNRET = 0 ]; then
+            ok "$PATTERN is present in $FILE"
+        else
+            crit "$PATTERN is not present in $FILE"
+        fi
+    fi
+}
+
+# This function will be called if the script status is on enabled mode
+apply () {
+    is_pkg_installed $PACKAGE
+    if [ $FNRET = 0 ]; then
+        ok "$PACKAGE is installed"
+    else
+        crit "$PACKAGE is absent, installing it"
+        apt_install $PACKAGE
+    fi
+    does_pattern_exist_in_file $FILE $PATTERN
+    if [ $FNRET = 0 ]; then
+        ok "$PATTERN is present in $FILE"
+    else
+        warn "$PATTERN is not present in $FILE"
+        add_line_file_before_pattern $FILE "password [success=1 default=ignore] pam_unix.so obscure sha512 remember=5" "# pam-auth-update(8) for details."
+    fi 
+}
+
+# This function will check config parameters required
+check_config() {
+    :
+}
+
+# Source Root Dir Parameter
+if [ -r /etc/default/cis-hardening ]; then
+    . /etc/default/cis-hardening
+fi
+if [ -z "$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
+    . $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