Microsoft has acknowledged a vulnerability in Microsoft Windows, which can be exploited by malicious people to manipulate certain data.

The vulnerability is caused due to an error in the TLS and SSL protocols while handling session renegotiations. This can be exploited to insert arbitrary plaintext before data sent by a legitimate client in an existing TLS session, via Man-in-the-Middle (MitM) attacks.

This is related to:
SA37291

Solution
The vendor recommends to disable support for TLS and SSL renegotiation, if applicable (please see the vendor's advisory for details).
Changelog
Further details available in Customer Area

Original Advisory
http://www.microsoft.com/technet/security/advisory/977377.mspx

Other references
Further details available in Customer Area

Deep Links
Links available in Customer Area