Microsoft is Dragging Its Feet on Another Security Vulnerability

 

On Tuesday, Tavis Ormandy of Google’s Project Zero released an exploit kit called ctftool, which uses and abuses Microsoft’s Text Services Framework in ways that can effectively get anyone root—er, system that is—on any unpatched Windows 10 system they’re able to log in to. The patches for this vulnerability—along with several other serious issues—went out in this week’s Patch Tuesday update.

We independently verified Ormandy’s proof-of-concept, and it’s precisely what it says on the tin: follow the directions and you get an nt authority\system privileged command prompt a few seconds later. We also independently verified that applying KB4512508 closed the vulnerability. After applying the August security updates, the exploit no longer works.

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