Zimbra Desktop v7.1.2 - Persistent Software Vulnerability

Document Title:
===============
Zimbra Desktop v7.1.2 - Persistent Software Vulnerability


References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=378


Release Date:
=============
2012-01-12


Vulnerability Laboratory ID (VL-ID):
====================================
378


Product & Service Introduction:
===============================
The Zimbra offline client (also Zimbra Desktop) for Microsoft Windows, Apple Mac OS and Linux is currently 
available in version 7.1.2. He is with the web interface in appearance and operation almost completely 
identical. The offline client is a Mozilla Prism application.

(Copy from the Vendor Homepage: http://de.wikipedia.org/wiki/Zimbra#Zimbra_Desktop)


Abstract Advisory Information:
==============================
Vulnerability-Lab Team discovered multiple persistent Web Vulnerabilities on Zimbras Prism Desktop Application.


Vulnerability Disclosure Timeline:
==================================
2011-11-01:	Vendor Notification
2012-01-12:	Public or Non-Public Disclosure


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


Affected Product(s):
====================
Zimbra Inc.
Product: Zimbra Desktop 7.1.2 b10978 


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


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


Technical Details & Description:
================================
Multiple input validation vulnerabilities(persistent) are detected on Zimbra Desktop v7.1.2. Local attackers can 
include (persistent) malicious script code to manipulate specific customer/admin requests. The vulnerability 
allows an local privileged attacker to  manipulate the appliance(application) via persistent script code inject. 
It is also possible to hijack customer sessions via persistent script code execution on application-side. Successful 
exploitation can also result in context/module request manipulation, execution of persistent malicious script code, 
session hijacking(account steal) & application-side mailbox phishing attacks.

Vulnerable Module(s):
				[+] Label Name - Username & MailBox Name

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


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by local low privileged user accounts or local attackers. For demonstration or reproduce ...

PoC:
>"%3E%22%3C%69%66%72%61%6D%65%20%73%72%63%3D%68%74%74%70%3A%2F%2F%76%75%6C%6E%65%72%61%62
%69%6C%69%74%79%2D%6C%61%62%2E%63%6F%6D%20%77%69%64%74%68%3D%36%30%30%20%68%65%69%67%68
%74%3D%36%30%30%3E%3E%3C%22%3C%73%63%72%69%70%74%3E%61%6C%65%72%74%28%64%6F%63%75%6D%65
%6E%74%2E%63%6F%6F%6B%69%65%29%3C%2F%73%63%72%69%70%74%3E%3C%64%69%76%20%73%74%79%6C%65
%3D%22%31


Solution - Fix & Patch:
=======================
The vulnerability can be patched/fixed via restrict on the input fields and parse on the input/output section or listings.


Security Risk:
==============
The security risk of the persistent software vulnerability is estimated as medium(-).


Credits & Authors:
==================
Vulnerability Research Laboratory -   N/A  Anonymous


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=========================
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