Windows 10 Redstone 3 to disable SMBv1 protocol

Posted on Tuesday, Jun 20 2017 @ 12:07 CEST by Thomas De Maesschalck
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Microsoft confirmed it's going to disable the original Server Message Block (SMB) protocol in most versions of Windows to protect users against potential malware attacks. While the security flaw that was abused by the WannaCry ransomware has been patched, the software giant said future builds of Windows will disable the very old SMBv1.

Consumer builds of Windows will see SMBv1 disabled with the launch of the Redstone 3 release, which is expected to be ready in October or November.

As Bleeping Computer points out, the decision to do so was made five years ago. The SMBv1 protocol was developed in the early 90s and was deprecated in favor of newer network protocols four years ago.
Even if the WannaCry outbreak was not the primary reason why Microsoft will disable SMBv1, the protocol's abysmal security had something to do with the company's decision.

"It’s the main, but not the only," [Microsoft's Ned] Pyle told Bleeping Computer. "Besides security, the code itself was superseded by SMB2 and later for functionality; SMB1 brings no special value except ubiquity – SMB2 can do what SMB1 can, plus many other things."
Microsoft recommends users and developers to use SMB 3.1.1 as a minimum.

About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.

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