A A A A A A A A A A A A  DefenseCode ThunderScan SAST Advisory
A A A A  WordPress Simple Login Log Plugin Multiple SQL Injection
A A A A A A A A A A A A A A A A A  Security Vulnerabilities


Advisory ID:A A A  DC-2017-01-013
Advisory Title: WordPress Simple Login Log Plugin Multiple SQL
A Injection Security Vulnerabilities
Advisory URL:A A  http://www.defensecode.com/advisories.php
Software:A A A A A A  WordPress Simple Login Log plugin
Language:A A A A A A  PHP
Version:A A A A A A A  1.1.1 and below
Vendor Status:A  Vendor contacted, update released
Release Date:A A  2017/10/10
Risk:A A A A A A A A A A  High



1. General Overview
===================
During the security audit of Simple Login Log plugin for WordPress CMS
multiple 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 authors, this plugin keeps a log of WordPress user
logins. It offers user and date filtering, and export features.

According to wordpress.org, it has more than 20,000 active installs.

Homepage:
https://wordpress.org/plugins/simple-login-log/


3. Vulnerability Description
============================
During the security analysis, ThunderScan discovered two SQL injection
vulnerabilities in Simple Login Log 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 vulnerability provides 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 attacker the vulnerable code is
also directly exposed to attack vectors such as Cross Site request
forgery (CSRF).

3.1. SQL injection
A  Function:A A A A  $wpdb->get_results($sql, 'ARRAY_A')
A  Variable:A A A A  $_REQUEST['orderby']
A  Sample URL:A A 
http://vulnerablesite.com/wp-admin/users.php?page=login_log&orderby=1+AND+SLEEP%285%29
A  Note:A A A A A A A A  Sample URL only works if there is more than one entry in
SQL response
A  File:A A A A A A A A  simple-login-log\simple-login-log.php
A A A  ---------
A A A  949 $orderby = (isset($_REQUEST['orderby']) &&
!empty($_REQUEST['orderby'])) ? $_REQUEST['orderby'] : false;
A A A  ...
A A A  527 $sql = "SELECT * FROM $this->table" . $where . " ORDER BY
{$orderby} {$order} " . 'LIMIT ' . $limit . ' OFFSET ' . $offset;
A A A  ---------

3.2. SQL injection
A  Function:A A A A  $wpdb->get_results($sql, 'ARRAY_A')
A  Variable:A A A A  $_REQUEST['order']
A  Sample URL:A A 
http://vulnerablesite.com/wp-admin/users.php?page=login_log&orderby=time&order=AND+SLEEP%285%29
A  Note:A A A A A A A A  Sample URL only works if there is more than one entry in
SQL response
A  File:A A A A A A A A  simple-login-log\simple-login-log.php
A A A  ---------
A A A  950 $order = (isset($_REQUEST['order']) &&
!empty($_REQUEST['order'])) ? $_REQUEST['order'] : false;
A A A  ...
A A A  527 $sql = "SELECT * FROM $this->table" . $where . " ORDER BY
{$orderby} {$order} " . 'LIMIT ' . $limit . ' OFFSET ' . $offset;
A A A  ---------
A 

4. Solution
===========
After we reported the vulnerabilities vendor responded that
vulnerabilities are fixed and update released. All users are strongly
advised to update WordPress Simple Login Log plugin to the latest
available version.


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

A 
6. Disclosure Timeline
======================
2017/04/06A A A A A  Initial contact
2017/04/17A A A A A  Vendor responded
2017/04/28A A A A A  Advisory sent to vendor
2017/05/19A A A A A  Vendor released an update
2017/10/10A A A A A  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/