Re: Internet Explorer URL parsing vulnerability

[William Stockall <wstockal@compusmart.ab.ca>]

I don't see this problem with Mozilla Firebird 0.7.  It displays the 
whole URL including the %01 and everything after the @ symbol.

			Will.

Pedro Castro wrote:
> It does also apply to Mozilla Firebird 0.7.
>
>
>
> John W. Noerenberg II wrote:
>
> > This exploit also applies to the Macintosh version of Explorer 
> > v5.2.3(5815.1)
> >
> > > From: <bugtraq@zapthedingbat.com>
> > > To: bugtraq@securityfocus.com
> > > Subject: Internet Explorer URL parsing vulnerability
> > >
> > >
> > >
> > > Internet Explorer URL parsing vulnerability
> > > Vendor Notified 09 December, 2003
> > >
> > > # Vulnerability ##########
> > > There is a flaw in the way that Internet Explorer displays URLs in 
> > > the address bar.
> > >
> > > By opening a specially crafted URL an attacker can open a page that 
> > > appears to be from a different domain from the current location.
> > >
> > > # Exploit ##########
> > > By opening a window using the http://user@domain nomenclature an 
> > > attacker can hide the real location of the page by including a 0x01 
> > > character after the "@" character.
> > > Internet Explorer doesn't display the rest of the URL making the page 
> > > appear to be at a different domain.
> > >
> > > # POC ##########
> > > http://www.zapthedingbat.com/security/ex01/vun1.htm
> > >
> > > # Tested ##########
> > > Internet Explorer
> > > Version 6.0.2800.1106C0
> > > Updates: SP1, Q810847, Q810351, Q822925, Q330994, Q828750, Q824145
> > >
> > > # Credit ##########
> > > Zap The Dingbat
> > > http://www.zapthedingbat.com/