full-disclosure - Re: password hash, funny myth in the industry!

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Message-ID: <f6ed80910710170439v579e4eb7x9c87d6d835d161b2@mail.gmail.com>
Date: Wed, 17 Oct 2007 14:39:28 +0300
From: upb <upbupb@...il.com>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: password hash, funny myth in the industry!

this would effectively make the password hash the password.
Are you sure this scheme is used?:P

On 10/16/07, Bipin Gautam <gautam.bipin@...il.com> wrote:
>
> hi list,
> i was reading the article,
> http://www.f-secure.com/weblog/archives/00001293.html
> but just an example.
>
> why do many people out there think password hash "can't be" as good as
> the password itself and needs to be computed/cracked first before it
> can be used?
>
> Consider the fact, many websites/forums don't use password hash+salt,
> just password hash( generally SHA1, MD5) that gets computer client
> side and POSTED to the web-forum for user authentication.
>
> If someone can sniff this, given that, user name is available using
> simple GUI tools as 'Tamper Data' ( firefox plug in ) even a low tech
> malicious user can log on with someones credentials without having to
> crack the password hash, instead just using the password hash itself
> manipulating the POST request.
>
> makes sense? :)
>
> thanks,
> -bipin
>
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