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@xxxxxxxx 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@xxxxxxxxx] Sent: Monday, May 10, 2004 1:35 PM To: 'Nuno Costa'; bugtraq@xxxxxxxxxxxxxxxxx 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@xxxxxxx] Sent: Monday, May 10, 2004 1:17 PM To: bugtraq@xxxxxxxxxxxxxxxxx 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@xxxxxxxxxxxxxxxxxx -> 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@xxxxxxx Portugal
