Information
--------------------
Name :  Open Redirection Vulnerability in Orchard
Software :  Orchard 1.3.9 and below.
Vendor Homepage :  http://orchardproject.net
Vulnerability Type :  Open Redirection
Severity :  Medium
Researcher :  Mesut Timur
Advisory Reference :  NS-12-002

Description
--------------------
Orchard is a free, open source, community-focused project aimed at
delivering applications and reusable components on the ASP.NET
platform.

Details
--------------------
Orchard is affected by a Open Redirection vulnerability in version 1.3.9.
Example PoC url is as follows :

http://www.example.com/orchard/Users/Account/LogOff?ReturnUrl=%2f%2fwww.netsparker.com%3f

You can read the full article about Open Redirection vulnerability
from here : http://www.mavitunasecurity.com/open-redirection/

Solution
--------------------
Upgrade to the latest Orchard version (1.3.10).

Credits
--------------------
It has been discovered on testing of Netsparker, Web Application
Security Scanner - http://www.mavitunasecurity.com/netsparker/.

References
--------------------
Vendor Url : http://orchard.codeplex.com/discussions/283667
MSL Advisory Link :
http://www.mavitunasecurity.com/open-redirection-vulnerability-in-orchard/
Netsparker Advisories : http://www.mavitunasecurity.com/netsparker-advisories/

About Netsparker
--------------------
Netsparker® can find and report security issues such as SQL Injection
and Cross-site Scripting (XSS) in all web applications regardless of
the platform and the technology they are built on. Netsparker's unique
detection and exploitation techniques allows it to be dead accurate in
reporting hence it's the first and the only False Positive Free web
application security scanner.

-- 
Netsparker Advisories, <advisories@mavitunasecurity.com>
Homepage, http://www.mavitunasecurity.com/netsparker-advisories/