On a server I have a public key auth only for root account. Is there any point of logging in with a different account?

    • ShortN0te@lemmy.ml
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      6 days ago

      And what do you suggest to use otherwise to maintain a server? I am not aware of a solution that would help here? As an attacker you could easily alias any command or even start a modified shell that logs ever keystroke and simulates the default bash/zsh or whatever.

        • ShortN0te@lemmy.ml
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          6 days ago

          And how would you not be able to hijack the password when you have control over the user session?

            • ShortN0te@lemmy.ml
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              6 days ago

              With aliases in the bashrc you can hijack any command and execute instead of the command any arbitrary commands. So the command can be extracted, as already stated above, this is not a weakness of sudo but a general one.

                • ShortN0te@lemmy.ml
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                  6 days ago

                  No you can alias that command and hijack the password promt via bashrc and then you have the root password as soon as the user enters it.

    • JasonDJ@lemmy.zip
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      6 days ago

      Nah just set up PAM to use TOTP or a third party MFA service to send a push to your phone for sudo privs.

        • 4am@lemm.ee
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          6 days ago

          Then you can’t gain root privileges on your server. Are you really arguing for less security because it’s inconvenient?

          This is end-user behavior and it’s honestly embarrassing. You should realize your security posture is much more important than “I left my phone on the other room”

          • slothrop@lemmy.ca
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            6 days ago

            This thread is embarrassing,
            The person you’re responding to could wipe your ass with a cli.

          • miss_demeanour@lemmy.dbzer0.com
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            6 days ago

            ffs…am I dealing with children here?
            You’ve accessed your server as a user, and then you su - to root.
            You don’t need a phone or a yubi or a dreamcatcher, or a unicorn.
            Please stop with your pretension.
            You’re so far out of your league that it’s embarrassing to me that I’ve bothered to answer.

            • JasonDJ@lemmy.zip
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              5 days ago

              There must at least be MFA somewhere on the path then.

              Even just keys, I wouldn’t trust, unless they are stored on smartcards or some other physical “something I have”, require a PIN/passphrase. and centrally managed so they can be revoked and rotated. Too many people use unprotected SSH keys.

        • JasonDJ@lemmy.zip
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          6 days ago

          I…I don’t understand the question.

          Also, yubikey or any other token. Plenty of MFA options compatible with sudo.