Skip to content
By using Twitter’s services you agree to our Cookies Use. We and our partners operate globally and use cookies, including for analytics, personalisation, and ads.

This is the legacy version of twitter.com. We will be shutting it down on June 1, 2020. Please switch to a supported browser, or disable the extension which masks your browser. You can see a list of supported browsers in our Help Center.

  • Home Home Home, current page.
  • About

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
wdormann's profile
Will Dormann
Will Dormann
Will Dormann
@wdormann

Tweets

Will Dormann

@wdormann

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

Joined August 2012

Tweets

  • © 2020 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Imprint
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. James Forshaw‏ @tiraniddo May 20
      • Report Tweet
      • Report NetzDG Violation

      Quick block post about a stupid, probably not exploitable, bug in NTFS still present in Windows 10 2004. https://www.tiraniddo.dev/2020/05/writing-windows-file-system-drivers-is.html …

      4 replies 50 retweets 111 likes
      Will Dormann‏ @wdormann May 20
      • Report Tweet
      • Report NetzDG Violation
      Replying to @tiraniddo

      Microsoft still hasn't yet fixed all of the fuzzed NTFS cases I sent them a year ago. Possibly because they were also deemed to be not exploitable. But it still sort of sucks that a standard USB mass storage device can panic a system when plugged in.pic.twitter.com/Ia4gmwh97Z

      3:24 PM - 20 May 2020
      • 2 Retweets
      • 21 Likes
      • Franci Šacer Radu Emanuel Chiscariu Henk Poley Ahmad Saleem xct ryan Cvolton
      4 replies 2 retweets 21 likes
        1. New conversation
        2. James Forshaw‏ @tiraniddo May 20
          • Report Tweet
          • Report NetzDG Violation
          Replying to @wdormann

          Not exploitable because they're something like null pointer deref or just because they need physical access, or?

          1 reply 0 retweets 1 like
        3. Will Dormann‏ @wdormann May 20
          • Report Tweet
          • Report NetzDG Violation
          Replying to @tiraniddo

          They have determined that the Windows kernel crashes are not exploitable, and therefore they're in the "we'll get to it when we get to it" bucket.

          1 reply 0 retweets 3 likes
        4. 1 more reply
        1. Will Dormann‏ @wdormann May 20
          • Report Tweet
          • Report NetzDG Violation
          Replying to @wdormann @tiraniddo

          Will Dormann Retweeted Will Dormann

          But before Linux folks start snickering, let it be known that the EXT filesystems BY DESIGN allow the plugged-in filesystem itself to determine if it would like the machine it's plugged into to panic or not.https://twitter.com/wdormann/status/1164551415047565313 …

          Will Dormann added,

          Will Dormann @wdormann
          Since this is public documented behavior, I see no reason to embargo this. I present for you a story in two parts. That's right, the untrusted filesystem itself gets to decide the kernel-level behavior "if" the filesystem contains an error. You will now panic because I said so. pic.twitter.com/7uA1gnnwfx
          Show this thread
          0 replies 4 retweets 11 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo
        1. New conversation
        2. Jonas L‏ @jonasLyk May 20
          • Report Tweet
          • Report NetzDG Violation
          Replying to @wdormann @tiraniddo

          maybe try fuss .iso files, they can be mounted as standard user. That at least removes the requirement of a physical usb stick. Or, maybe its possible to somehow use the RDP forward device technology to fake a usb drive somehow? Anybody else got an idea?

          1 reply 0 retweets 0 likes
        3. Will Dormann‏ @wdormann May 20
          • Report Tweet
          • Report NetzDG Violation
          Replying to @jonasLyk @tiraniddo

          Will Dormann Retweeted Will Dormann

          VHD and VHDX files work fine for this purpose. https://insights.sei.cmu.edu/cert/2019/09/the-dangers-of-vhd-and-vhdx-files.html … And yes, RDP servers with RemoteFX enabled allow connecting USB devices without physical access.https://mobile.twitter.com/wdormann/status/1088152028252119041 …

          Will Dormann added,

          Will Dormann @wdormann
          And just before the "this requires physical access" thoughts... Modern RDP allows for USB device passthrough. You can trigger this BSOD over RDP on such systems. pic.twitter.com/qIveXEaxtu
          Show this thread
          1 reply 0 retweets 1 like
        4. 2 more replies
        1. Psyber Attack‏ @PsyberAttack May 20
          • Report Tweet
          • Report NetzDG Violation
          Replying to @wdormann @tiraniddo

          I have a vague memory of some USB sticks that would insta-BSoD Windows when you plugged them in. Pretty sure they were branded swag from a corporate I was contracting for, but it's a hazy memory. Would have been a few years ago, maybe even 5 or more, but it's a real Deja Vu thing

          0 replies 0 retweets 0 likes
          Thanks. Twitter will use this to make your timeline better. Undo
          Undo

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2020 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Imprint
        • Cookies
        • Ads info