bugtraq - RE: a litle bypass with IE

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Date: Mon, 10 May 2004 17:06:39 -0700
From: "Thor Larholm" <thor@...x.com>
To: "Eric Norbut" <eric@...gi.com>, "Nuno Costa" <webcenter@...o.pt>,
	<bugtraq@...urityfocus.com>
Subject: RE: a litle bypass with IE

Remove your proxy setttings from IE and try navigating to
http://@@website_allowed.pt@...url - you will get an invalid syntax
error.

Regards

Thor Larholm
Senior Security Researcher
PivX Solutions
24 Corporate Plaza #180
Newport Beach, CA 92660
http://www.pivx.com
thor@...x.com
Stock symbol: PIVX
Phone: +1 (949) 231-8496
PGP: 0x5A276569
6BB1 B77F CB62 0D3D 5A82 C65D E1A4 157C 5A27 6569

PivX defines a new genre in Desktop Security: Proactive Threat
Mitigation. 
<http://www.pivx.com/qwikfix>

-----Original Message-----
From: Eric Norbut [mailto:eric@...gi.com] 
Sent: Monday, May 10, 2004 1:35 PM
To: 'Nuno Costa'; bugtraq@...urityfocus.com
Subject: RE: a litle bypass with IE

This is a problem with Squid, as I was able to replicate the same
bypassing with Opera.

-----Original Message-----
From: Nuno Costa [mailto:webcenter@...o.pt]
Sent: Monday, May 10, 2004 1:17 PM
To: bugtraq@...urityfocus.com
Subject: a litle bypass with IE

 hello  im not a expert in this area, but i work in a intranet that
haves
the Squid/2.3.STABLE5 filtring all access's to the internet..   so i
don't
have access to the internet directaly, but i know that this proxy allow
access to especific web sites.. so, in the past if i us this:
http://url@...site_allowed.pt -> the vuln that is already discovered...
i have access to the website that i want...  but in this days, this vuln
is now fixed so...  in my test's i found this way to pass this proxy,
using: http://@@website_allowed.pt@...url -> now i have access...  using
@@url.pt@ i can bypass the proxy and access the internet, i don't know
how faur, this could go!!  so i don't know if this is a bug from IE or
just a simple bug from Squid.. ??? can anyone tell what we have in hands
?  PS: sorry my
inglish    Nuno Costa webcenter@...o.pt Portugal