C4B XPhone UC Web version 4.1.890S R1 suffers from a cross site scripting vulnerability.
1b8cac9e10cd2aec0e9e56a8d8f7b493da9bc789c084cd43c73042d53a980ead
Title:
======
C4B XPhone UC Web 4.1.890S R1 - Cross Site Vulnerability
Date:
=====
2012-04-24
References:
===========
http://www.vulnerability-lab.com/get_content.php?id=484
VL-ID:
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484
Introduction:
=============
XPhone Unified Communications 2011 ist die leistungsstärkste Telefonie- und Kommunikationslösung von C4B.
Sie ist leicht zu bedienen und verbessert die Arbeitsabläufe in Unternehmen. Die Lösung integriert sich
nahtlos in bestehende Anwendungen und nutzt die vorhandene Telefonanlage und IT-Infrastruktur. Dabei
werden die verschiedensten Kommunikationsmittel wie Telefon, Handy, Fax, Voicemail, SMS und Instant Messaging
vereint und mit Präsenzinformationen kombiniert. Die Software stellt leistungsfähige Telefonie-Funktionen in
praktisch allen Anwendungen wie z.B. Microsoft Outlook, Lotus Notes, Warenwirtschaftssystemen (ERP),
Kundendatenbanken (CRM) oder dem Webbrowser zur Verfügung. Die Verknüpfung von Telefonereignissen mit bestimmten
Aktionen, z.B. Starten von Anwendungen, automatische Erstellung von Briefen oder Faxe u.v.m, verbessert die
Arbeitsabläufe in Unternehmen spürbar.
(Copy of the Vendor Homepage: http://www.c4b.de )
Abstract:
=========
A Vulnerability Laboratory Researcher discovered a persistent Cross-Site Scripting vulnerability in C4B XPhone UC Web v4.1.890SR1.
Report-Timeline:
================
2012-04-24: Public or Non-Public Disclosure
Status:
========
Published
Affected Products:
==================
C4B
Product: XPhone UC Web v4.1.890SR1
Exploitation-Technique:
=======================
Remote
Severity:
=========
Medium
Details:
========
A persistent Cross-Site Scripting vulnerability has been detected on C4B XPhone UC Web v4.1.890SR1 and versions below.
The bug allows an attacker to inject arbitrary script code on the application side (persistent) via for example
a connected groupware application like Microsoft Outlook or IBM Lotus Notes. The injected script code is
executed on every client who is searching for details of the manipulated user on the web application. Successful
exploitation of the vulnerability can therefor lead to session hijacking or stable (persistent) context manipulation.
Vulnerable Module(s):
[+] Work => Home/Work => Company Name (Input)
[+] Contact Phone Listing => Company Name Display Conversation (Output)
Picture(s):
../1.png
../2.png
Proof of Concept:
=================
The vulnerability can be exploited by a remote attacker who is able to change his own Groupware details to inject arbitrary code
like shown on the screenshots, which results in a persistent context manipulation ...
File: Client.aspx
<div id="XPhoneMCDivSearchDetails" style="display: block;" class="ai2" title="Anwesend (Bis auf Weiteres)" userguid="7c9064ab-d6ce-XXXX-XXXX-XXXXXXXXXXXX">
<strong>Julien Ahrens</strong>
<br>Vulnerability-Lab<br><iframe src="http://www.vulnerability-lab.com/index.php"></iframe>
</div>
<div id="XPhoneMCDivSearchDetails" style="display: block; " class="ai2" title="Anwesend (Bis auf Weiteres)" userguid="7c9064ab-d6ce-XXXX-XXXX-XXXXXXXXXXXX">
<strong>Julien Ahrens</strong><br>
<a href="www.vulnerability-lab.com" onclick="javascript:alert(document.cookie)">Vulnerability-Lab</a>
</div>
Risk:
=====
The security risk of the persistent cross site scripting vulnerability is estimated as medium.
Credits:
========
Vulnerability Research Laboratory - Julien Ahrens (MrTuxracer) [www.inshell.net]
Disclaimer:
===========
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Copyright © 2012 Vulnerability-Lab
--
VULNERABILITY RESEARCH LABORATORY TEAM
Website: www.vulnerability-lab.com
Mail: research@vulnerability-lab.com