Bugtraq: Re: Vulnerability in all versions of DCForum from dcscripts.com

[David Choi <dcscripts () yahoo com>]

Let me add that this doesn't affect older versions of
DCForum (DCF99, 98, 97) as those features do not
include retrieving password feature.

Thanks.

David S. Choi
DCScripts.com


--- shimi <shimi () jct ac il> wrote:
> When a user requests a new password for his account,
> a new password is
> generated and sent to the requester (anyone that
> knows the username+email
> information, which is usually available in "user
> profile").
>
> The problem is that the password is simply the first
> 6 characters of the
> user's SessionID, which is, of course, known to
> anybody who knows how to
> see a value in a cookie.
>
> Hence every user in the world can come to the board,
> request a new
> password for someone, and then login with that
> username + 6 first
> characters of the SessionID from the cookie.
>
> The author has been notified (by me), and even
> released a patch, but, as
> it appears, didn't bother saying that here, where
> most of the world will
> be reading it, so I decided to do it myself.
>
> Here's my post:
http://www.dcscripts.com/cgi-bin/dcforum/dcboard.cgi?az=read_count&om=1198&forum=dcfBug
> And here's the patch:
> http://www.dcscripts.com/bugtrac/DCForumID7/3.html
>
>   Best regards,
>      Shimi
>
>
> ----
>
>    "Outlook is a massive flaming horrid blatant
> security violation, which
>     also happens to be a mail reader."
>
>    "Sure UNIX is user friendly; it's just picky
> about who its friends are."
>
>     Sign that you downloaded Linux from a bad
> source:
>     "My compiler keeps hanging on NSABackdoor.h !!!"

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