Skip to content
  • Home Home Home, current page.
  • Moments Moments Moments, current page.

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
RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

Tweets

Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

Tweets

  • © 2018 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • 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. Brian Campbell‏ @__b_c Aug 22
      Replying to @taviso @RichFelker @hanno

      fair point but driving a whole attack from js served from the subdomain is more difficult than doing it directly with the cookie. Raising the bar rather than complete prevention. The same is true for XSS and the httponly flag on cookies but it still exists and gets used.

      1 reply 0 retweets 0 likes
    2. Tavis Ormandy‏Verified account @taviso Aug 22
      Replying to @__b_c @RichFelker @hanno

      That's true, but you have to admit if httponly was as invasive a change as token binding, it probably wouldn't exist?

      2 replies 0 retweets 1 like
    3. Brian Campbell‏ @__b_c Aug 22
      Replying to @taviso @RichFelker @hanno

      your point is taken. But given that it's optional and only used when negotiated by both parties in the TLS handshake, it doesn't seem that invasive to me.

      1 reply 0 retweets 0 likes
    4. Tavis Ormandy‏Verified account @taviso Aug 22
      Replying to @__b_c @RichFelker @hanno

      The argument I heard was that because this will break Antivirus (I'm the last person who would complain about that), they will just start being more invasive with hooks and patching. That's pretty convincing argument, bluecoat aren't just going to close down the business 😊

      1 reply 0 retweets 3 likes
    5. SwiftOnSecurity‏ @SwiftOnSecurity Aug 22
      Replying to @taviso @__b_c and

      I took it the other way, IMO, someone at MSFT mentioned it as another way to get endpoint TLS MitM further untenable

      1 reply 0 retweets 4 likes
    6. Tavis Ormandy‏Verified account @taviso Aug 22
      Replying to @SwiftOnSecurity @__b_c and

      Right, but is that good or bad? They can switch to hooking and patching instead - they're going to do that, because they're business depends on that and they already need Admin to install cert. So did we make things better or worse?

      1 reply 0 retweets 4 likes
    7. Tavis Ormandy‏Verified account @taviso Aug 22
      Replying to @taviso @SwiftOnSecurity and

      If we could prevent endpoint mitm, you know I would be all for this, but aren't we just forcing them to be more sketchy?

      1 reply 0 retweets 5 likes
    8. Matthew Hardeman‏ @mdhardeman Aug 22
      Replying to @taviso @SwiftOnSecurity and

      It's true for regulated industries, but maybe it's time for that split. Token Binding allows for U2F tokens to be part of handshake and kills off MITM for 2FA auth, even with a good cert... But... Some industries have regulatory requirements to capture user generated content.

      2 replies 0 retweets 0 likes
    9. Tavis Ormandy‏Verified account @taviso Aug 22
      Replying to @mdhardeman @SwiftOnSecurity and

      I think you're saying that it will break TLS MITM middleware boxes (like bluecoat). True, but for those to work you already need Administrator access to endpoint (to install CA). If you have Admin, you can just hook and patch browser instead, which is worse!

      2 replies 0 retweets 3 likes
    10. Tavis Ormandy‏Verified account @taviso Aug 22
      Replying to @taviso @mdhardeman and

      So I'm saying, it doesn't make TLS MITM untenable, it forces the vendors hand to do dangerous things. Do you want more security vendors patching around in chrome.exe? If we could prevent Administrators from MitMing endpoints, you better believe I would be hassling chrome devs 🤣

      3 replies 0 retweets 2 likes
      Rich Felker‏ @RichFelker Aug 22
      Replying to @taviso @mdhardeman and

      Make it illegal to display the Chrome name and logo in a browser modified to support MITM.

      12:40 PM - 22 Aug 2018
      • 1 Like
      • Matthew Hardeman
      1 reply 0 retweets 1 like
        1. New conversation
        2. Matthew Hardeman‏ @mdhardeman Aug 22
          Replying to @RichFelker @taviso and

          Yep. DMCA, Copyright, and Trademark law certainly would enable this, particularly if you add some protective DRM even if it's only minimal. Let them do what they want under their own badged version of Chromium..

          1 reply 0 retweets 1 like
        3. Tavis Ormandy‏Verified account @taviso Aug 22
          Replying to @mdhardeman @RichFelker and

          Come on, you think you're in the right, but so do they and they have just as much money to spend on lawyers and lobbyists. Both sides are saying "we need to do this for security" and both sides think the users are on their side. Do you really believe this is easy? 😩

          1 reply 0 retweets 0 likes
        4. Matthew Hardeman‏ @mdhardeman Aug 22
          Replying to @taviso @RichFelker and

          Of course it's not easy, but at least there's extant case law for unauthorized derivative works. Trademark law is pretty clear here too. If they effectively alter your product but keep your branding, it's an actionable violation.

          0 replies 0 retweets 0 likes
        5. End of conversation

      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

        • © 2018 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Cookies
        • Ads info