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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. Madame Hardy‏ @mme_hardy Aug 5

      Madame Hardy Retweeted poly "learn julia" tomous

      Don't have the chops to vet the paper myself; those of you who do deep CS want to comment? @LeaKissner @yonatanzunger @FioraAeterna and all my other friends.https://twitter.com/polytomous/status/1025869511004577792 …

      Madame Hardy added,

      poly "learn julia" tomous @polytomous
      cs researcher: we need to figure out ways to write safer code with fewer bugs so it can be exploited less often. Hu et. al.: what if *takes a huge bong rip* we added more bugs to the system instead. https://arxiv.org/pdf/1808.00659.pdf … (this paper is lit)
      2 replies 0 retweets 0 likes
    2. John Chu‏ @john_chu Aug 5
      Replying to @mme_hardy @LeaKissner and

      On a really quick skim, I wonder why this won’t also make it harder for white hats to find the exploitable bugs that need to be fixed.

      1 reply 0 retweets 0 likes
    3. John Chu‏ @john_chu Aug 5
      Replying to @john_chu @mme_hardy and

      Which isn’t to say that it isn’t really neat…

      2 replies 0 retweets 0 likes
    4. Fiora Aeternal Suffering  🎃‏ @FioraAeterna Aug 5
      Replying to @john_chu @mme_hardy and

      why would it make finding bugs harder for someone with access to the source code?

      1 reply 0 retweets 0 likes
    5. John Chu‏ @john_chu Aug 5
      Replying to @FioraAeterna @mme_hardy and

      Do independent security researchers have access to the source code for proprietary products?

      1 reply 0 retweets 0 likes
    6. Fiora Aeternal Suffering  🎃‏ @FioraAeterna Aug 5
      Replying to @john_chu @mme_hardy and

      "independent security researchers" == "sells their exploit to a high bidder, whether google or ze/rodium" == "not usually a white hat"

      2 replies 0 retweets 0 likes
    7. Rich Felker‏ @RichFelker Aug 5
      Replying to @FioraAeterna @john_chu and

      It sounds very plausible that it does make things harder for the ones who are actually white hats or who at least prefer to disclose in less-/non-harmful ways, leading to highly funded attackers with in-house researchers finding and using the real vulns first.

      1 reply 0 retweets 0 likes
    8. Fiora Aeternal Suffering  🎃‏ @FioraAeterna Aug 5
      Replying to @RichFelker @john_chu and

      im pretty sure that's how things already are

      1 reply 0 retweets 1 like
    9. Rich Felker‏ @RichFelker Aug 5
      Replying to @FioraAeterna @john_chu and

      Indeed, but further in that direction. Driving up the cost of finding vulns, rather than fixing and avoiding creating them, seems really unhealthy and ultimately harmful for the people who rely on the software that's vulnerable...

      1 reply 0 retweets 1 like
    10. Fiora Aeternal Suffering  🎃‏ @FioraAeterna Aug 5
      Replying to @RichFelker @john_chu and

      there will always be more vulnerabilities, for every ten you fix there's a thousand you don't, and somebody else looking for vulns is finding a different ten

      2 replies 0 retweets 0 likes
      Rich Felker‏ @RichFelker Aug 5
      Replying to @FioraAeterna @john_chu and

      That's certainly not the case for OpenSSH, even though it's written in C. Software where vulns are rare and effectively finite is possible. The problem is nobody wants to spend resources on doing that rather than on superlinearly ballooning features and bug-surface.

      10:22 AM - 5 Aug 2018
      2 replies 0 retweets 0 likes
        1. New conversation
        2. Lea Kissner‏ @LeaKissner Aug 5
          Replying to @RichFelker @FioraAeterna and

          It might be nice for something less-examined than OpenSSH that runs on the command line.... if the chaff bugs were indistinguishable to automated analysis and not too expensive to inject.

          1 reply 0 retweets 1 like
        3. Rich Felker‏ @RichFelker Aug 5
          Replying to @LeaKissner @FioraAeterna and

          The injection would be in the revision history (or the binary if just binary level) and therefore anyone looking to find/fix real bugs would just build with them removed.

          1 reply 0 retweets 0 likes
        4. Rich Felker‏ @RichFelker Aug 5
          Replying to @RichFelker @LeaKissner and

          I think this principle actually applies to proprietary binaryware too - a smart attacker will review not just the latest revision but do advanced analysis of change history, and could identify all the chaff relatively easily.

          0 replies 0 retweets 0 likes
        5. End of conversation
        1. Stephen Checkoway‏ @stevecheckoway Aug 5
          Replying to @RichFelker @FioraAeterna and

          There's a classic paper on bugs (reported) in OpenBSD over time. https://www.usenix.org/legacy/events/sec06/tech/full_papers/ozment/ozment.pdf …

          0 replies 0 retweets 5 likes
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