[11931] in bugtraq

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Re: BT/Cellnet Genie vulnerability

daemon@ATHENA.MIT.EDU (James Fidell)
Thu Sep 16 17:37:29 1999

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Content-Type: text/plain; charset=us-ascii
Message-Id:  <19990915094338.F27668@thagdal.cloud9.co.uk>
Date:         Wed, 15 Sep 1999 09:43:38 +0100
Reply-To: James Fidell <james@CLOUD9.CO.UK>
From: James Fidell <james@CLOUD9.CO.UK>
X-To:         BUGTRAQ@SECURITYFOCUS.COM
To: BUGTRAQ@SECURITYFOCUS.COM
In-Reply-To:  <19990915085754.A27668@thagdal.cloud9.co.uk>; from James Fidell
              on Wed, Sep 15, 1999 at 08:57:54AM +0100

I wrote:

> The webmail service from BT Cellnet's Genie site appears have a vulnerability
> which allows any user to read messages irrespective of their intended
> recipient.  Once logged in, other messages can be retrieved by merely
> changing the message-id in the URL for your own messages.

Engaging brain and writing this a little more clearly...

The Web server logs all SMS messages sent from the site to a mobile
phone.  The log is displayed once a Genie user has sean SMS message, which
requires authentication.  By selecting a message sent by themselves, it's
then possible to modify the URL used to retrieve your own message to read
other messages sent via the service.

James.
--
 "Yield to temptation --             | Consultancy: james@cloud9.co.uk
  it may not pass your way again"    | http://www.cloud9.co.uk/james
                                     |
        - Lazarus Long               |              James Fidell

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