Patch Now: Schannel Vulnerability Poses Huge Threat

Posted: November 13th, 2014
Filed under: IIS & HTTP


A critical vulnerability in Microsoft Schannel headlined the security bulletin released by Microsoft for November. The vulnerability is the latest in TLS vulnerabilities for 2014, and means that every major TLS stack has been impacted by a severe vulnerability this year alone, as reported by Ars Technica. The Schannel vulnerability is drawing comparisons to Heartbleed, as it similarly allows for remote code execution and data theft.

Needless to say, it is imperative that affected systems are patched immediately.


Microsoft Security Bulletin MS14-066 – Critical – Find & Install Patch


Secure Channel, also known as Schannel, is the standard security package used by SSL/TLS in Windows. The Schannel vulnerability impacts all versions of Windows dating back to Vista/Windows Server 2003.

After the Bash and Poodle Vulnerabilities earlier this year, we should not be surprised to see a vulnerability that has gone unpatched for an extended period of time. This vulnerability just underscores the fact that even very mature software may have serious bugs from time to time.

The complete November security bulletin can viewed here.

Looking for more details about the Schannel vulnerability (MS14-066)? Read More

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