Muster Render Farm Management System – Arbitrary File Download
#Name: Muster Render Farm Management System Arbitrary File Download #Vendor Website : http://www.vvertex.com/muster.html #Date Released : November 29, 2011 #Affected Software : Muster < 6.20 #Researcher : Nick Freeman (nick.freeman@security-assessment.com) #Description #Security-Assessment.com has discovered a vulnerability with the Muster 6.1.6 web management server. This issue #can be exploited by an unauthenticated user to gain full control of the web management interface, and to send #arbitrary commands to all Muster clients. #Exploitation #It is possible to download any file on the Muster server by exploiting a vulnerability in the web server. By #using directory traversal characters (\..\..\) in the URL, it is possible to specify any file on the file #system to be served to the client. Exploitation of this vulnerability does not require authentication. The #table below includes an example HTTP Request that would allow the download of the “muster.db” SQLite database: #Example of Malicious HTTP Request : GET /a\..\..\muster.db HTTP/1.1 Host: musterserver:8690 #This SQLite database contains a table with all users of the application together with base64-encoded #passwords. By retrieving this database or other similar configuration files, it is possible to gain #administrative access over the render farm. #Solution #A patch is available from the vendor’s website. Version 6.20 remediates this vulnerability. |