[HSC] Multiple CSRF in Joomla all versions - Complete compromise Hackers Center Security Group (http://www.hackerscenter.com) Credit: Armando Romeo aka Zinho Class: CSRF Remote: Yes Risk: HIGH Product: Joomla Version: All (1.0.13 and 1.5 rc3 tested) Vendor: http://www.joomla.com Patch: Joomla 1.5 RC4 "Joomla! is one of the most powerful Open Source Content Management Systems on the planet. It is used all over the world for everything from simple websites to complex corporate applications. Joomla! is easy to install, simple to manage, and reliable" Joomla is vulnerable to CSRF attacks into all of its released versions including the RC3 of 1.5. +] Affected areas -Users The attack allows everyone (no privileges needed) to add a new Super Admin by just having a Super Admin visiting a url -Extension installation The attack allow everyone (no privileges needed) to upload an extension from a remote location, thus having malicious PHP scripts on server. Read PHP shell. -Global configuration The attack allows everyone (no privileges needed) to change all the aspects of the site main configuration, including database configuration. Defacement or complete portal compromise is possible including having access to the database. +] Notes Joomla has been contacted on 12/4/2007. Fast and professional response was given. Patched in SVN 4 days later and then with the RC4 release. Time to face CSRF, community! +] Patch Patch of the above vulnerabilities is included into the RC4 release of Joomla 1.5 As far as I know 1.0 has not been fixed so all the 1.0.x versions are vulnerable and unpatched, that's why I'm not including a POC here. http://kit.hackerscenter.com - The most comprehensive security pack you will ever find on the net! -- ---- Zinho Webmaster and Founder Hackers Center Internet Security Portal www.hackerscenter.com