The SSL provider component in Microsoft Windows Vista SP2 Windows Server 2008 SP2 R2 and R2 SP1 Windows 7 Gold and SP1 Windows 8 Windows Server 2012 and Windows RT does not properly handle encrypted packets which allows man-in-the-middle attackers to conduct SSLv2 downgrade attacks against (1) SSLv3 sessions or (2) TLS sessions by intercepting handshakes and injecting content aka \Microsoft SSL Version 3 and TLS Protocol Security Feature Bypass Vulnerability.\