CVE-2013-0982
The Private Browsing feature in CFNetwork in Apple Mac OS X before 10.8.4 does not prevent storage of permanent cookies upon exit from Safari, which might allow physically proximate attackers to bypass cookie-based authentication by leveraging an unattended workstation.
Date published : 2013-06-05
http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html