VMware Vendor Service - Multiple Web Vulnerabilities

Document Title:
===============
VMware Vendor Service - Multiple Web Vulnerabilities


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=419


Release Date:
=============
2012-05-16


Vulnerability Laboratory ID (VL-ID):
====================================
419


Common Vulnerability Scoring System:
====================================
5.2


Product & Service Introduction:
===============================
VMware, Inc. (NYSE: VMW) is a company providing virtualization software, founded in 1998 and based in Palo Alto, 
California, USA. The company was acquired by EMC Corporation in 2004, and operates as a separate software subsidiary.
VMware s desktop software runs on Microsoft Windows, Linux, and Mac OS X, while VMware s enterprise software hypervisors 
for servers, VMware ESX and VMware ESXi, are bare-metal embedded hypervisors that run directly on server hardware without 
requiring an additional underlying operating system.

(Copy of the Vendor Homepage: http://en.wikipedia.org/wiki/VMware)


Abstract Advisory Information:
==============================
A Vulnerability Lab Researcher discovered multiple persistent web vulnerabilities on the VMware vendor website service application.


Vulnerability Disclosure Timeline:
==================================
2012-05-03:	Vendor Notification
2012-05-03:	Vendor Response/Feedback
2012-05-14:	Vendor Fix/Patch 
2012-05-16:	Public or Non-Public Disclosure


Discovery Status:
=================
Published


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


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


Technical Details & Description:
================================
Multiple persistent input validation vulnerabilities are detected on the VMware vendor website service application. 
The vulnerability allows an remote attacker to hijack customer sessions with low required user inter action. 
Successful exploitation can result in account steal or execution of malicious persistent context.

Vulnerable Module(s):
						[+] Username, Welcome & Title

Picture(s):
						../1.png
						../2.png
						../3.png


Proof of Concept (PoC):
=======================
The vulnerabilities can be exploited by remote attackers with low required user inter action.
For demonstration or reproduce ...

1.1

<div id="header" class="proServices">
<h1>Support Contracts & Incidents</h1>
<ul id="navSession" class="navSession">
<li>Welcome,"><[SCRIPT CODE EXECUTION!]></li></ul></div></div></div></div></body></html>


1.2
<link type="text/css" rel="StyleSheet" href="productRegistration.do_files/accountserialskin.css">
<ul class="navSession" id="navSession">
<li>	  
Welcome ">>"<[SCRIPT CODE EXECUTION!]>
</li></ul></div></div></div></body></html>


Reference(s):
			../contracts.portal.html
			../productRegistration.do


Also affected:
			https://www.vmware.com/mysupport/order.portal?vmware=searchOrders&qn=0


Solution - Fix & Patch:
=======================
To fix the vulnerability parse the input field when processing to save profile content.
Sanitize the output listing of the user profile and title were the context is getting executed.
Restrict the input field also with a char mask or secure filter as exception-handling.


Security Risk:
==============
The security risk of the persistent input validation vulnerabilities are estimated as high(-).


Credits & Authors:
==================
Vulnerability Laboratory [Research Team] -    Benjamion Kunz Mejri ([email protected])


Disclaimer & Information:
=========================
The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, 
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability-
Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business 
profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some 
states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation 
may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases 
or trade with fraud/stolen material.

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