Lockdown in Apple iOS before 7.1.2 does not properly verify data from activation servers, which makes it easier for physically proximate attackers to bypass the Activation Lock protection mechanism via unspecified vectors.
http://www.securitytracker.com/id/1030500
http://www.securityfocus.com/bid/68276
http://support.apple.com/kb/HT6441
http://archives.neohapsis.com/archives/bugtraq/2014-09/0106.html
http://archives.neohapsis.com/archives/bugtraq/2014-06/0174.html