RE: a litle bypass with IE

["Thor Larholm" <thor () pivx com>]

Remove your proxy setttings from IE and try navigating to
http://@@website_allowed.pt@my_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 () pivx com
Stock symbol: PIVX
Phone: +1 (949) 231-8496
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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 () se-gi com] 
Sent: Monday, May 10, 2004 1:35 PM
To: 'Nuno Costa'; bugtraq () securityfocus 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 () sapo pt]
Sent: Monday, May 10, 2004 1:17 PM
To: bugtraq () securityfocus 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@website_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@my_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 () sapo pt Portugal