The 802.1X subsystem in Apple iOS before 8 and Apple TV before 7 does not require strong authentication methods, which allows remote attackers to calculate credentials by offering LEAP authentication from a crafted Wi-Fi AP and then performing a cryptographic attack against the MS-CHAPv1 hash.
archives.neohapsis.com/archives/bugtraq/2014-09/0106.html
archives.neohapsis.com/archives/bugtraq/2014-09/0107.html
archives.neohapsis.com/archives/bugtraq/2014-10/0101.html
support.apple.com/kb/HT6441
support.apple.com/kb/HT6442
www.securityfocus.com/bid/69882
www.securityfocus.com/bid/69913
www.securitytracker.com/id/1030866
exchange.xforce.ibmcloud.com/vulnerabilities/96097
support.apple.com/kb/HT6535