CVE-2010-1820
Apple Filing Protocol (AFP) Server in Apple Mac OS X 10.6.x through 10.6.4 does not properly handle errors, which allows remote attackers to bypass the password requirement for shared-folder access by leveraging knowledge of a valid account name.
Date published : 2010-09-21
http://lists.apple.com/archives/security-announce/2010/Sep/msg00004.html