News Document Title:
====================
ICQ v7.5 Remote Vulnerability discovered  by Lab Researcher


Release Date:
=============
2011-07-27


Laboratory Article:
===================
This morning noptrix discovered a new high priority vulnerability on our security laboratory.
Multiple persistent remote bugs are detected on the new ICQ 7.5 version. The product vendor is informed!


Title:
======
ICQ Software v7.5 - Persistent Cross Site Vulnerabilities


Date:
=====
2011-07-25


References:
===========
News > http://www.vulnerability-lab.com/news/get_news.php?id=16
Advisory > http://www.vulnerability-lab.com/get_content.php?id=231
Profile > http://www.vulnerability-lab.com/show.php?user=noptrix

Public News/Press:
http://www.heise.de/security/meldung/ICQ-anfaellig-fuer-Account-Diebstahl-1286014.html
http://www.golem.de/1107/85249.html
http://seclists.org/fulldisclosure/2011/Jul/321
http://www.securityhome.eu/os/wince/exploit.php?eid=7097215994e2ef2ed7c0382.28269287


VL-ID:
=====
231


Introduction:
=============
Mit der Chat-Software ICQ 7.5 bleiben Sie mit Ihren Freunden auf der ganzen Welt in Kontakt. 
Die neue Version gibt es exklusiv bei CHIP Online zum Download.
 
Fotostrecke: ICQ 7.5 - Next Generation Messenger Mit dem kostenlosen ICQ lassen sich schnell 
Text-Mitteilungen und Dateien zwischen angemeldeten Nutzern verschicken. Zudem können Sie gegen 
Ihre Freunde in Online-Games antreten, Fotos miteinander austauschen oder coole Animationen auf 
das Chat-Fenster des Gegenüber zaubern. Dank der integrierten Audio- und Video-Chatfunktion können 
Besitzer eines Headsets und/oder einer Webcam mit ICQ kostenlos miteinander telefonieren, auf 
Wunsch sogar samt Live-Bild.

Kompatibel zu sozialen Netzwerken
Neben der reinen Messenger-Funktionen haben Sie mit ICQ direkten Zugriff auf Social-Networks wie 
Facebook (inklusive Facebook Chat), Twitter, YouTube oder Flickr.

So können Sie Ihren ICQ-Status nun automatisch auf Ihrer Facebook- oder Twitter-Seite veröffentlichen 
oder schnell und einfach Bilder und Links austauschen. Umgekehrt sehen Sie im neuen Tab »Feeds from 
Friends« in der ICQ-Kontaktliste auch sämtliche Updates Ihrer Freunde in deren sozialen Netzwerken. 
Neue Postings lassen sich direkt aus ICQ heraus kommentieren.

Neue Funktionen in der Version 7.5
    Verbesserter Audio- & Video-Chat
    Mehr als 80 Moods versetzen ICQ in Stimmung
    Einfacher Zugriff auf Emoticons und -tZers über ICQ-Galerie
    Datenschutzsymbole in der ICQ-Kontaktliste zeigen, welche Kontakte gesperrt sind etc.

(Copy of the Homepage: http://www.chip.de/downloads/ICQ_13004923.html )


Abstract:
=========
The vulnerability-lab researcher (noptrix) discovered multiple persistent remote vulnerabilities on ICQ  v7.5 Software.


Report-Timeline:
================
2011-07-12:	Vendor Notification
2011-07-15:	Vendor Response/Feedback
2011-07-25:	Public or Non-Public Disclosure


Status:
========
Published


Affected Products:
==================
Digital Sky Technologies - Mail.RU Group
Product: ICQ v7.5


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


Severity:
=========
High


Details:
========
Multiple persistent cross site scripting vulnerability are detected on the famous ICQ v7.5.
The bug allows an remote attacker to inplement malicious persistent script codes on main modules of the software.
The successful exploitation of the vulnerability allows an remote attacker to hijack 
icq sessions, manipulate profile content requests, redirect to external targets(websites) & can 
lead to malware infiltration.

Vulnerable Module(s):
				                        [+] Profile - Users
			                        	[+] Feeds Index

Pictures:
			                              	../icq_cli_xss.png
				                        ../icq_cli_xss2.png


Proof of Concept:
=================
The vulnerabilities can be exploited by remote attackers. For demonstration or reproduce ...

PoC: 
"><iframe src=z onload=alert('persistent_xss_p0wer_noptrix') <
... or
%22%3E%3C%69%66%72%61%6D%65%20%73%72%63%3D%7A%20%6F%6E%6C%6
F%61%64%3D%61%6C%65%72%74%28%27%70%65%72%73%69%73%74%65%6E%
74%5F%78%73%73%5F%70%30%77%65%72%5F%6E%6F%70%74%72%69%78%27
%29%20%3C


Solution:
=========
Icq.com & the specific nodes has to validate the input characters and sanitize the output to client users.


Risk:
=====
The security risk of the remote xss vulnerability is estimated as high because of the persistent attack vector.


Credits:
========
noptrix - http://www.noptrix.net/


Disclaimer:
===========
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 
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states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation 
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    						Copyright © 2011|Vulnerability-Lab