Adium 1.4.2 Cross Site Scripting

`+-----------------------------------------------------------------------------+  
| noptrix.net - Public Security Advisory |  
+-----------------------------------------------------------------------------+  
  
  
Date:  
-----  
08/02/2011  
  
Vendor:  
-------  
Adium - http://www.adium.im/  
  
Affected Software:  
------------------  
Software: Adium  
Version: <= 1.4.2  
  
Affected Platforms:  
-------------------  
Mac OS X (10.6.8, 10.6.7, maybe also other...)  
  
Vulnerability Class:  
--------------------  
HTML/Javascript-Injection / Cross-Site Scripting  
  
Description:  
------------  
Adium suffers from a persistent HTML/Javascript injection / Cross-Site Scripting  
vulnerability due to a lack of input validation and output sanitization of  
filenames.  
  
Proof of Concept:  
-----------------  
The following HTML/Javascript payload can be used as a filename to trigger the  
described vulnerability:  
  
--- SNIP ---  
  
sh3ll$ echo "123" > \"\>\<body\>\<h1\>0x90trix\ pwns\ -\ XSS\ POWER\ \<iframe\ \src\=\"www.google.com\"\ style\=\"background-color\:\ green\".gif  
  
--- SNIP ---  
  
For a PoC demonstration see:  
- http://www.noptrix.net/tmp/adium_inject.png  
- http://www.noptrix.net/tmp/adium_inject2.png  
- http://www.noptrix.net/tmp/adium_inject3.png  
  
Impact:  
-------  
An attacker could for example inject HTML/Javascript code and redirect/phish any  
users of Adium. With some time, creativity, fantasy and good music, an attacker  
could leverage the vulnerability to increase the attack vector to the underlying  
software and operating system of the victim.  
  
Threat Level:  
-------------  
Medium - High  
  
Solution:  
---------  
adium.im has to validate the input characters and sanitize the output.  
  
Status:  
-------  
Adium hasn't fixed the issue yet.  
  
Notes:  
------  
To the whole world: Funny thing: Anglophone and German media refer me as  
Armenian in their Skype XSS articles, yet all the Turkish news sites insists  
that I am Turkish. For the record, I am Armenian and my people have been  
persecuted by Turkey for hundreds of years. Thanks.  
`