Aaron Adams over at SYMANTEC, did a quick check on the version of Samba running on currently up to date OSX machines and found that the Macs were still running 3.0.10. He did a quick mod on the existing Metasploit module and has reliable code execution going..

If you are running OSX, you probably want to make sure your samba isnt exposed while you grab the latest source and build..

/mh