CVE-2011-3436
Open Directory in Apple Mac OS X 10.7 before 10.7.2 does not require a user to provide the current password before changing this password, which allows remote attackers to bypass intended password-change restrictions by leveraging an unattended workstation.
Date published : 2011-10-14
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html