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wdormann's profile
Will Dormann
Will Dormann
Will Dormann
@wdormann

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Will Dormann

@wdormann

Vulnerability Analyst at the CERT/CC. My thoughts are my own, not my employer's.

Joined August 2012

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    1. Andy Greenberg‏Verified account @a_greenberg May 10
      • Report Tweet
      • Report NetzDG Violation

      Dutch researcher @0Xiphorushas has detailed a new physical access technique that could let hackers break into any of millions of PCs via their Thunderbolt ports. The good news is it requires unscrewing the case briefly. The bad news is it's unpatchable.https://www.wired.com/story/thunderspy-thunderbolt-evil-maid-hacking/ …

      15 replies 323 retweets 505 likes
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    2. Andy Greenberg‏Verified account @a_greenberg May 10
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      • Report NetzDG Violation

      Apologies, that's @0Xiphorus

      1 reply 1 retweet 14 likes
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    3. Andy Greenberg‏Verified account @a_greenberg May 10
      • Report Tweet
      • Report NetzDG Violation

      Intel says computers that have Kernel Direct Memory Access Protection enabled are safe, but that feature is only available in some PCs sold since 2019. @0Xiphorus has released a tool to see if your computer is vulnerable here: https://thunderspy.io/ 

      1 reply 21 retweets 47 likes
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    4. Will Dormann‏ @wdormann May 10
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      • Report NetzDG Violation
      Replying to @a_greenberg @0Xiphorus

      The Intel blog post indicates that it's the *operating system* being newer than from 2019 that protects against attack. Not the PC being from 2019 or newer. https://blogs.intel.com/technology/2020/05/more-information-on-thunderspy … So basically any up-to-date computer isn't at risk?

      1 reply 1 retweet 2 likes
    5. Björn Ruytenberg‏ @0Xiphorus May 10
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      Replying to @wdormann @a_greenberg

      Sadly, no. Intel's Kernel DMA protection requires hardware and BIOS support that weren't shipped prior to 2019. It also requires OS support but that is much easier to fix. See https://thunderspy.io/#kernel-dma-protection … for details.

      2 replies 4 retweets 11 likes
    6. Tanja Lange‏ @hyperelliptic May 10
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      Replying to @0Xiphorus @wdormann @a_greenberg

      In-market systems;[..]will not support Kernel DMA Protection for Thunderbolt™ 3 after upgrading to Windows 10 version 1803, as this feature requires the BIOS/platform firmware changes and guarantees that cannot be backported to previously released deviceshttps://docs.microsoft.com/en-us/windows/security/information-protection/kernel-dma-protection-for-thunderbolt …

      1 reply 4 retweets 6 likes
      Will Dormann‏ @wdormann May 11
      • Report Tweet
      • Report NetzDG Violation
      Replying to @hyperelliptic @0Xiphorus @a_greenberg

      On one hand, I'd say that the Intel blog post is specifically worded to imply that up-to-date systems are fine. Hardware reqs are glossed over. On the other hand, yeah, if you allow physical access to a powered-on computer, don't be surprised by evil. https://www.kb.cert.org/vuls/id/789985/ pic.twitter.com/tdGY4pAmNb

      5:14 AM - 11 May 2020
      • 2 Likes
      • Yanai Moyal Royce Williams
      0 replies 0 retweets 2 likes

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