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Re: Re: Authentication flaw in Web Wiz forum
From: Bruce Corkhill <bruce () webwizguide info>
Date: Tue, 02 Mar 2004 22:18:15 +0000

Yet again!! Alexander aka. Pig Killer and Michael have found there report to be incorrect and have tried to retract it but not fully with another incorrect bug report.

The Forgotten Password feature requires the user to enter details about themselves including user name, email address, etc. that they used when registering. Only once this data is entered correctly is a new password emailed to the users emails address.

So the security flaw mentioned by Alexander aka. Pig Killer and Michael is incorrect as it is not applicable when using this feature.

If you are using Web Wiz Forums then please ignore all bug reports by Alexander aka. Pig Killer and Michael as they are incorrect (and not for the first time!!) so you do not need to worry or email the site for a new version.




At 21:40 02/03/2004, you wrote:

Hi all again!

This bug works only when password changes using "Forgotten your password?"
future.

The user code is changed when changing the password using "user profile".

Sorry for my mistake.


----- Original Message -----
From: "Alexander" <pk95 () yandex ru>
To: <full-disclosure () lists netsys com>
Cc: "Bruce Corkhill" <bruce () webwizguide info>
Sent: Wednesday, March 03, 2004 12:20 AM
Subject: Authentication flaw in Web Wiz forum


> Product:  Web Wiz forum 7.0-7.7a www.webwizforum.com
>
> Risk:          Medium
>
> Date:         02 March, 2004
>
> Autor:        Pig Killer and Michael ( www.SecurityLab.ru)
>
>
>
> When user log on forum, for his cookies identification forum using
User_code
> value from tblAutor table from underlying database, which doesn't change
> with changing of password. As a result, when user change password, he can
> register in the forum using old cookies. As a result, if users cookies was
> compromised (for example by XSS), then even password changing will doesn't
> protect his account from unauthorized using.
>
>
>
> The forum also allows logged in user to change the password without
entering
> the old one. Thus, having cookie, you can change the password without
> knowing the old one.
>

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