CVE-2015-6112: Input Validation
First published: Wed Nov 11 2015(Updated: )
SChannel in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 lacks the required extended master-secret binding support to ensure that a server's X.509 certificate is the same during renegotiation as it was before renegotiation, which allows man-in-the-middle attackers to obtain sensitive information or modify TLS session data via a "triple handshake attack," aka "Schannel TLS Triple Handshake Vulnerability."
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows 7 | =sp1 | |
| Microsoft Windows 8.0 | ||
| Microsoft Windows 8.1 | ||
| Microsoft Windows RT | ||
| Microsoft Windows RT | ||
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2-sp1 | |
| Microsoft Windows Server | =r2-sp1 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Vista | =sp2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2015-6112?
CVE-2015-6112 is classified as a moderate severity vulnerability affecting multiple versions of Microsoft Windows.
How do I fix CVE-2015-6112?
The fix for CVE-2015-6112 involves applying the latest security updates provided by Microsoft for the affected Windows versions.
Which Windows versions are affected by CVE-2015-6112?
CVE-2015-6112 affects Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012, and Windows RT.
Can CVE-2015-6112 lead to unauthorized access?
Yes, CVE-2015-6112 can potentially allow attackers to perform man-in-the-middle attacks due to the lack of proper certificate validation.
Is the vulnerability CVE-2015-6112 specific to certain hardware?
No, CVE-2015-6112 affects software implementations in various Microsoft Windows operating systems regardless of the underlying hardware.
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