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wycats's profile
Yehuda Katz 🥨
Yehuda Katz 🥨
Yehuda Katz  🥨
Verified account
@wycats

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Yehuda Katz  🥨Verified account

@wycats

Tilde Co-Founder, OSS enthusiast and world traveler.

Portland, OR
yehudakatz.com
Joined August 2007

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    1. postmodern‏ @postmodern_mod3 17 Dec 2014

      Sad to see #rust developers defending the practice of piping CURL into SUDO BASH. Convenience shouldn't trump safety or security.

      3 replies 2 retweets 4 likes
    2. Yehuda Katz  🥨‏Verified account @wycats 17 Dec 2014
      Replying to @postmodern_mod3

      @postmodern_mod3 Inconvenience can often result in unexpectedly worse security when people automate the inconvenient thing.

      2 replies 0 retweets 0 likes
    3. postmodern‏ @postmodern_mod3 17 Dec 2014
      Replying to @wycats

      @wycats and are you seriously defending pipping an untrusted script through SUDO BASH.

      3 replies 0 retweets 0 likes
    4. Yehuda Katz  🥨‏Verified account @wycats 17 Dec 2014
      Replying to @postmodern_mod3

      @postmodern_mod3 I'm not defending anything. Just saying that making things more manual rarely has the desired effect.

      1 reply 0 retweets 0 likes
    5. postmodern‏ @postmodern_mod3 17 Dec 2014
      Replying to @wycats

      @wycats so when will the `curl -s https://static.rust-lang.org/rustup.sh  | sudo sh` be removed? Rust already has nightly binaries.

      1 reply 0 retweets 0 likes
      Yehuda Katz  🥨‏Verified account @wycats 17 Dec 2014
      Replying to @postmodern_mod3

      @postmodern_mod3 What is your suggestion for a solution that will not be automated to execute arbitrary code.

      5:26 PM - 17 Dec 2014
      2 replies 0 retweets 0 likes
        1. New conversation
        2. postmodern‏ @postmodern_mod3 17 Dec 2014
          Replying to @wycats

          @wycats a) split curl | sudo command in two b) link to the script, let user view/download/etc c) just recommend they install the binaries.

          1 reply 0 retweets 0 likes
        3. Yehuda Katz  🥨‏Verified account @wycats 17 Dec 2014
          Replying to @postmodern_mod3

          @postmodern_mod3 Downloading a nightly binary and clicking next/next/next is also executing untrusted code with sudo. What is the diff?

          3 replies 0 retweets 0 likes
        4. postmodern‏ @postmodern_mod3 17 Dec 2014
          Replying to @wycats

          @wycats it requires more user interaction. You should be signing your binaries anyways!

          1 reply 0 retweets 0 likes
        5. Yehuda Katz  🥨‏Verified account @wycats 17 Dec 2014
          Replying to @postmodern_mod3

          @postmodern_mod3 if the server is hacked, which is the vuln vector, the attacker can just upload a new binary with their own sig or no sig

          1 reply 0 retweets 1 like
        6. postmodern‏ @postmodern_mod3 17 Dec 2014
          Replying to @wycats

          @wycats then the sig won't match the signing key, which should be in a separate VM.

          0 replies 0 retweets 0 likes
        7. End of conversation
        1. New conversation
        2. postmodern‏ @postmodern_mod3 17 Dec 2014
          Replying to @wycats

          @wycats by downloading to a file, it allows the user to review the script before/after running.

          1 reply 0 retweets 0 likes
        3. Pointless❶‏ @pointless_one 17 Dec 2014
          Replying to @postmodern_mod3

          @postmodern_mod3 Currently I see no obstacles at all for someone who wants to see the code. It’s not like the link is hidden. /cc @wycats

          2 replies 0 retweets 0 likes
        4. postmodern‏ @postmodern_mod3 17 Dec 2014
          Replying to @pointless_one

          @chebatron @wycats they still have to copy/paste the link. See my PR which adds an actual link: https://github.com/postmodern/rust-www/commit/4c7729c3dbd3286dd056d4f8e9d20803caf54887 …

          6 replies 0 retweets 0 likes
        5. Pointless❶‏ @pointless_one 17 Dec 2014
          Replying to @postmodern_mod3

          @postmodern_mod3 Most systems don’t even require it to put stuff in /usr/local or /opt. /cc @wycats

          1 reply 0 retweets 0 likes
        6. postmodern‏ @postmodern_mod3 17 Dec 2014
          Replying to @pointless_one

          @chebatron I am very curious about $HOME based FHS. It's come up with chruby, but I'm not sure if a defacto standard exists.

          2 replies 0 retweets 0 likes
        7. Pointless❶‏ @pointless_one 18 Dec 2014
          Replying to @postmodern_mod3

          @postmodern_mod3 FHS must admit that these days many systems have only one user (which is “sysadmin” too).

          2 replies 0 retweets 0 likes
        8. postmodern‏ @postmodern_mod3 18 Dec 2014
          Replying to @pointless_one

          @chebatron all OSes still require elevated privileges to install software, in order to prevent unwanted software installing itself.

          1 reply 0 retweets 0 likes
        9. Pointless❶‏ @pointless_one 18 Dec 2014
          Replying to @postmodern_mod3

          @postmodern_mod3 Only partially true. Say, homebrew doesn’t require sudo.

          1 reply 0 retweets 0 likes
        10. 8 more replies

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