Portcullis Security Advisory 05-003
Portcullis Security Advisory
Vulnerable System:
MediaPartner 5.0
Vulnerability Title:
In Place Password Update Process Flawed
Vulnerability discovery and development:
Portcullis Security Testing Service
Affected systems:
Emotion MediaPartner Web Server Version 5.0 (5.1 not confirmed)
Details:
The logic behind the "In Place Password Update" process (which
appears to be used to force a user to change their password when it
has expired) can be exploited to change the password of any user,
without having to authenticate to the system or have knowledge of the
current password. This is caused by the fact that no checking is done
to ensure that a session has been authenticated before the change
password code is executed.
Impact:
This vulnerability allows the authentication mechanism to be
bypassed, by entering a valid username and resetting their password
to a known value. Once access was gained to the application
Portcullis were able to identify users with full admin privileges,
after resting their password, full control of the application was
gained.
Exploit:
No exploit required. Example:
http://target_ip/login.bhtml?userNameForPasswordChange=admin
Copyright:
Copyright © Portcullis Computer Security Limited 2005, All rights reserved
worldwide.
Permission is hereby granted for the electronic redistribution of this
information. It is not to be edited or altered in any way without the express
written consent of Portcullis Computer Security Limited.
Disclaimer:
The information herein contained may change without notice. Use of this
information constitutes acceptance for use in an AS IS condition. There are NO
warranties, implied or otherwise, with regard to this information or its use.
Any use of this information is at the user's risk. In no event shall the
author/distributor (Portcullis Computer Security Limited) be held liable for
any damages whatsoever arising out of or in connection with the use or spread
of this information.
*************************************************************
The information in this email is confidential and may be
legally privileged. It is intended solely for the addressee.
Any opinions expressed are those of the individual and do not
represent the opinion of the organisation.
Access to this email by persons other than the intended
recipient is strictly prohibited.
If you are not the intended recipient, any disclosure, copying,
distribution or other action taken or omitted to be taken in
reliance on it, is prohibited and may be unlawful.
When addressed to our clients any opinions or advice contained
in this email is subject to the terms and conditions expressed
in the applicable Portcullis Computer Security Limited terms
of business.
**************************************************************