Time Machine in Apple Mac OS X before 10.7.3 does not verify the unique identifier of its remote AFP volume or Time Capsule, which allows remote attackers to obtain sensitive information contained in new backups by spoofing this storage object, a different vulnerability than CVE-2010-1803.
http://support.apple.com/kb/HT5130
http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html