From: carl hardwick (hardwick.carlgmail.com)
Date: Mon Feb 04 2008 - 14:10:31 CST

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Firefox seems to have trouble with defining the proper hostname when
requesting a ssl connection. I was able to trick Firefox in thinking
the hostname behind the at-sign is legit and the same as the URI that
requested an ssl connection, and this without a warning.

PoC: https://www.gmail.com%C0%AF%C0%AF%C0%C0%80roguehost.com

You can add as much garbage between .com and the sign.

So what else can we do?

PoC:
www.cnn.com%C0%AF%C0%AF%C0%C0%80google
www.gmail.com%C0%AF%C0%AF%C0%C0%80hotmail

ah heck we don't need that at all:
www.gmail.comxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxhotmail

works fine also :)

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