full-disclosure - Re: Firefox 2.0.0.12 SSL Spoofing and Domain Guessing vulnerabilities

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Message-ID: <e9d9d4020802041325jbab65dr955acb994f30f337@mail.gmail.com>
Date: Mon, 4 Feb 2008 15:25:33 -0600
From: reepex <reepex@...il.com>
To: "carl hardwick" <hardwick.carl@...il.com>,
	full-disclosure@...ts.grok.org.uk
Subject: Re: Firefox 2.0.0.12 SSL Spoofing and Domain
	Guessing vulnerabilities

I am not sure the intended point of the exploit since you have @roguehost
and not a proper POC, but I believe all you have triggered is normal
behavior for auto logging into .htaccess protected folders in the form
username:password@...t.com

http://forum.sambarserver.info/viewtopic.php?p=288
http://www.freewebmasterhelp.com/tutorials/htaccess/3

I did it with google.com and @mail.yahoo.com and it tried to log me into
mail.yahoo.com with google.... as my username as expected

On Feb 4, 2008 2:10 PM, carl hardwick <hardwick.carl@...il.com> wrote:

> 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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