How a malformed installer package can crack Mac OS X
There exists a pretty significant interface problem with the Apple Installer program such that any package requesting admin access via the AdminAuthorization key, when run in an admin user account, is given full root-level access without providing the user with a password prompt during the install. This is even explained in Apple's Installer documentation as proper behavior. The distinction between the AdminAuthorization and RootAuthorization keys is, simply, whether or not the admin user is prompted for a password; the end powers are exactly the same and it is up to the creator of the package as to if he will be kind enough to ask for a password.
At Mac Geekery.
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