bugtraq - WPkontakt message parsing error

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Date: Thu, 23 Dec 2004 12:54:55 +0100 (CET)
From: Jaroslaw Sajko <sloik@....poznan.pl>
To: bugtraq@...urityfocus.com, <full-disclosure@...ts.netsys.com>
Subject: WPkontakt message parsing error



Product:	WPKontakt (<= 3.0.1)
Vendor:		Wirtualna Polska (http://kontakt.wp.pl/index.html)
Impact:		Remote script execution in Internet Zone
Severity:	Medium
Authors: 	Blazej Miga <bla@....poznan.pl>,
		Jaroslaw Sajko <sloik@....poznan.pl>
Advisory:	http://www.man.poznan.pl/security/wpkontakt.html


[ISSUE]

WPkontakt is the another Polish instant messenger. The problem is similiar
to the problems revealed in GG or Tlen.pl - parsing error leading to the
remote script execution.


[DETAILS]

Parsing error while parsing en email addresses allows us to inject
javascript code like this:

test@"style="background-image:url(javascript:alert(%22You%20are%20owned!%22>))".wp.pl

The code will execute in Internet Zone.


[SOLUTION]

Please upgrade to the newest version (3.0.1p1)



	  Coprights Poznan Supercomputing and Networking Center