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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
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