I saved a file from my original WOTLK install on my Mac a while back and when you replace my unzipped file with your original Wow.app and run it, the game should run normally without permission errors. Tried it with a friend the other day and it worked, seems to be configured the correct way compared to the default one in the Warmane install.
Here's the media fire link: http://www.mediafire.com/download/di...rcraft.app.zip