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

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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

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    1. SwiftOnSecurity‏ @SwiftOnSecurity Apr 24

      Someone should write a think piece on if DNSSEC would have helped the http://myetherwallet.com  situation or not. I know Comcast DNS resolvers enforce it at some level but I don't know much operationally. @dakamipic.twitter.com/0oLJcLEZP6

      10 replies 10 retweets 48 likes
      Show this thread
    2. P̵̛wn̷̕̕ A̶͡ll͜͝͝ T̡̛̕h̷̶̀͠͡e̷̵̶̷ T̵͜͢h̸̸́͟i̕ng͝s͡‏ @pwnallthethings Apr 24
      Replying to @SwiftOnSecurity @dakami

      It might have helped in this narrow instance, but it doesn't solve the problem in general, because BGP hijacks IP addresses, not DNS addresses (although you can hijack IP addresses in order to hijack DNS addresses). And that narrow save comes with big trade-offs elsewhere.

      2 replies 9 retweets 32 likes
    3. SwiftOnSecurity‏ @SwiftOnSecurity Apr 24
      Replying to @pwnallthethings @dakami

      But hijacking BGP is meaningless if everything in the future is TLS+DNSSEC authenticated, yes?

      3 replies 1 retweet 3 likes
    4. P̵̛wn̷̕̕ A̶͡ll͜͝͝ T̡̛̕h̷̶̀͠͡e̷̵̶̷ T̵͜͢h̸̸́͟i̕ng͝s͡‏ @pwnallthethings Apr 24
      Replying to @SwiftOnSecurity @dakami

      I don't need to hijack your domain name if I can just hijack your IP address. And having done that I can get CAs to give me DV-validated certs for it.

      5 replies 2 retweets 23 likes
    5. Matthew Green‏ @matthew_d_green Apr 24
      Replying to @pwnallthethings @SwiftOnSecurity @dakami

      The thinking is that the CAs will require DNSSEC validation of the customer’s DNS server before issuing. This requires 100% compliance and 100% deployment so I don’t buy it. But that’s the argument.

      2 replies 0 retweets 7 likes
    6. P̵̛wn̷̕̕ A̶͡ll͜͝͝ T̡̛̕h̷̶̀͠͡e̷̵̶̷ T̵͜͢h̸̸́͟i̕ng͝s͡‏ @pwnallthethings Apr 24
      Replying to @matthew_d_green @SwiftOnSecurity @dakami

      But *even then* DNSSEC doesn't stop you hijacking the IP address. You can do all of this attack without touching DNS at all.

      3 replies 1 retweet 6 likes
      Rich Felker‏ @RichFelker Apr 24
      Replying to @pwnallthethings @matthew_d_green and

      DANE would prevent it though.

      12:30 PM - 24 Apr 2018
      0 replies 0 retweets 0 likes

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