Portcullis Security Advisory 05-007
Portcullis Security Advisory
Vulnerable System:
Webseries Payment Application
Vulnerability Title:
Password Policy Implemented At Client rather than Server
Vulnerability discovery and development:
Portcullis Security Testing Services
Affected systems:
Bottomline Webseries Payment Application
Details:
The password policy, enforcing the minimum length of passwords, is implemented
in the client browser using JavaScript which can be bypassed using any local
proxy system, allowing for single character passwords.
Impact:
Whilst client side data validation can be of assistance in aiding a user to
correctly enter the required information, client side scripts can be easily
by-passed in a number of ways. This allows a user to set their password to
a value not acceptable to the implemented security policy.
Exploit:
Exploit code not required.
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.
**************************************************************