Security Advisory 08-008 – ScrewTurn Wiki Permanent Cross-site Scripting
Permanent Cross-site Scripting in the “System Log” page.
ScrewTurn Wiki (www.screwturn.eu).
Vulnerability discovery and development:
Portcullis Security Testing Services
Credit for Discovery:
Ferruh Mavituna – Portcullis Computer Security Ltd.
ScrewTurn Wiki 2.0.29 and 2.0.30 confirmed.
Potentially all older versions as well although, this has not been confirmed.
Following a request to any page will cause an error log because of the ASP.NET Request Validation.
This error will then be visible in the “/admin.aspx – System Log” page as unfiltered.
High, it is possible to hijack the admin session and from the admin panel it is possible to run .NET code via a plugin feature or to manage the whole application. The exploit does not require any authentication.
A <script>alert(‘XSS’)</script> request to any page in the application.
Vendor contacted, who advised that the vulnerability has been fixed in version 2.0.31.
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