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Re: [Full-disclosure] Firefox 2.0.0.12 SSL Spoofing and Domain Guessing vulnerabilities

From: scott (redhowlingwolvesnc.rr.com)
Date: Mon Feb 04 2008 - 21:34:33 CST

This is obviously a bug in the newest beta release and should be
reported there.Why the OP chose not to do this is a matter for speculation.

Regards,
Scott

steve menard wrote:
> I get a warning on 2.0.0.11 Linux Ubuntu
>
> You are about to log into the site "google" with the username
> "www%2Ecnn2Ecom%c0%AF%C0%AF%C0%C0%80", but the website does not require
> authentication. this may be an attempt to trick you
> Is "google" the site you want to visit.?
>
> is this a 2.0.0.12 issue?
> Steve
>
> carl hardwick 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%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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>>
>>
>
> _______________________________________________
> Full-Disclosure - We believe in it.
> Charter: http://lists.grok.org.uk/full-disclosure-charter.html
> Hosted and sponsored by Secunia - http://secunia.com/
>
>

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