Bugtraq: Better WP Security v3.4.3 Wordpress - Web Vulnerabilities

[Vulnerability Lab <research () vulnerability-lab com>]

Title:
======
Better WP Security v3.4.3 Wordpress - Web Vulnerabilities


Date:
=====
2012-08-20


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=691


VL-ID:
=====
691


Common Vulnerability Scoring System:
====================================
3.5


Introduction:
=============
plugin thereby ensuring that as many security holes as possible are patched without having to worry about 
conflicting features or the possibility of missing anything on your site. With one-click activation for most 
features as well as advanced features for experienced users Better WP Security can help protect any site.

(Copy of the Vendor Homepage: http://wordpress.org/extend/plugins/better-wp-security/  )


Abstract:
=========
The Vulnerability Laboratory Research Team discovered multiple persistent web vulnerabilities in the Better WP security 
v3.4.3 Wordpress Application Addon.


Report-Timeline:
================
2012-08-21:     Public Disclosure


Status:
========
Published


Exploitation-Technique:
=======================
Remote


Severity:
=========
Medium


Details:
========
Multiple persistent input validation vulnerabilities are detected in the Better WP security v3.4.3 Wordpress 
Application Addon.
The vulnerability allows remote attackers to hijack website customer, moderator or admin sessions with medium or high 
required user inter 
action. The bugs are located on server side in the Limit Login Attempts, Exception Handling Error & Intrusion Detection 
module with the 
bound vulnerable email address & error parameter. Successful exploitation can result in wordpress application account 
steal, client side 
phishing & client-side content request manipulation. Exploitation requires medium or high user inter action & without 
privileged 
web application user account.

Vulnerable Module(s):
                                [+] Better WP Security - Limit Login Attempts & Intrusion Detection
                                [+] Exception Handling Error

Vulnerable Parameter(s):
                                [+] Email Address
                                [+] Error


Proof of Concept:
=================
The persistent vulnerability can be exploited by remote attackers with low required user inter action & low privileged 
application user account. For demonstration or reproduce ...

Inject the following example string to the application input (persistent) or parameter (client side)
String:  >"<iframe src=http://www.vulnerability-lab.com></iframe>


Review: Listings

<tr valign="top">
<th scope="row" class="settinglabel">
<label for="" "ll_emailaddress"="">Email Address</label>
</th>
<td class="settingfield">
<input id="ll_emailaddress" name="ll_emailaddress" value="\" type="text">
<[PERSISTENT INJECTED SCRIPT CODE!]")' <="" admin () vulnerability-lab com"="">


Review: Exception Handling

<div class="error" style="text-align: center;"><p style="color: red; font-size: 14px; font-weight: 
bold;">Attention !</p><p>
Please add this site now to your <a target="_blank" href="http://managewp.com/wp-admin";>ManageWP.com</a> account.  
Or deactivate the Worker plugin to avoid <a target="_blank" href="http://managewp.com/user-guide/security";>security 
issues</a>.         
</p></div><div id="message" class="error"><p>Login time period needs to be aan integer greater than 0.</p></div>
<div id="message" class="error"><p>\"><[PERSISTENT INJECTED SCRIPT CODE!]")' <="" is="" 
not="" a="" valid="" ip.<="" p=""></div>


Solution:
=========
The vulnerabilities can be patched by parsing the email address & error exception handling parameters and output 
listing.


Risk:
=====
The security risk of the persistent input validation vulnerabilities are estimated as medium.


Credits:
========
Vulnerability Laboratory [Research Team]  -    Benjamin Kunz Mejri (bkm () vulnerability-lab com)


Disclaimer:
===========
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                                        Copyright © 2012 | Vulnerability Laboratory



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