🥺: the best sudo replacement - Xe's Blog

Also for some reason this article created a 500+ comment thread on the Orange Website where boomers complain about the authors pronouns.

  • Llituro [he/him, they/them]
    ·
    2 years ago

    i've literally read the code and i still can't imagine this would actually work for anything if you don't even authenticate your root access. or is the bit that it's the "bottom" sudo so it just asks for access and anything you'd actually need sudo access for, to which the OS says "...no"

    • invalidusernamelol [he/him]
      ·
      2 years ago

      It's an incredibly secure solution to root access control. Every rejection is logged as well

      The key part is the exec call at the end. One of the interesting things about the exec-family of system calls in UNIX is that it replaces the current process if it succeeds. This means that the function will never return unless some error happened, so the exec method always returns an error. This will make error handling happen properly and if things fail the process will exit with a non-zero error code:

          Finished release [optimized] target(s) in 0.06s
     Running `target/release/🥺 ls`
Error: Os { code: 1, kind: PermissionDenied, message: "Operation not permitted" }

      Every time you run it, it spits out an error

      🥺 ls

      :bottom-speak: :speech-l:

      PermissionDenied, message: "Operation not permitted"

      :speech-r: :top-use-words:

      • dung_Eater [none/use name]
        ·
        2 years ago

        lol, this is fucking hilarious. sad that i have literally zero people in my life that would understand this

        • invalidusernamelol [he/him]
          ·
          2 years ago

          The joke is about sudo replacements being looked down on by the community, so they wrote a sudo replacement that is told "no" by the kernel.

      • frankfurt_schoolgirl [she/her]
        ·
        2 years ago

        That's because the binary needs the right permissions. If it was root + setuid it should work on Unix.

        • invalidusernamelol [he/him]
          ·
          2 years ago

          So building it with the right permissions would actually allow it to run as a sudo alternative?

          • frankfurt_schoolgirl [she/her]
            ·
            2 years ago

            Yeah it would be essentially the same as sudo with the NOPASSWD: ALL option set in /etc/sudoers

            • invalidusernamelol [he/him]
              ·
              2 years ago

              I prefer my reading of the bit because a "bottom sudo" that only ever gets denied by the kernel is funnier

    • frankfurt_schoolgirl [she/her]
      ·
      2 years ago

      The way privileged escalation works on Unix is that any binary owned by root with the right permission bits set can switch to root, so it would actually work if you installed it correctly. I think the bit is just that 🥺 breaks ASCII red team tooling.