a litle bypass with IE

[Nuno Costa <webcenter@xxxxxxx>]

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