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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 :) _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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