Sandal6823@sh.itjust.works to Linux@lemmy.ml · 1 年前Why disable ssh login with root on a server if I only log in with keys, not password?message-squaremessage-square78linkfedilinkarrow-up1106arrow-down15file-text
arrow-up1101arrow-down1message-squareWhy disable ssh login with root on a server if I only log in with keys, not password?Sandal6823@sh.itjust.works to Linux@lemmy.ml · 1 年前message-square78linkfedilinkfile-text
On a server I have a public key auth only for root account. Is there any point of logging in with a different account?
minus-squareslothrop@lemmy.calinkfedilinkEnglisharrow-up7arrow-down3·1 年前You would have to know the root password.
minus-squareShortN0te@lemmy.mllinkfedilinkarrow-up4arrow-down6·1 年前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.
minus-squareslothrop@lemmy.calinkfedilinkEnglisharrow-up6arrow-down3·1 年前You would have to KNOW the root password.
minus-squareShortN0te@lemmy.mllinkfedilinkarrow-up4arrow-down5·1 年前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.
minus-squaremiss_demeanour@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up5arrow-down1·edit-21 年前As root: # chattr +i /home/ShortN0te/.bashrc Anything else?
minus-squareShortN0te@lemmy.mllinkfedilinkarrow-up4arrow-down4·1 年前There are many ways to harden against it, but “just disable root auth” is not really it, since it in itself does not add much.
minus-squaremiss_demeanour@lemmy.dbzer0.comlinkfedilinkEnglisharrow-up5arrow-down2·1 年前?? Seriously - if you’re “advising” on linux best practices, get lots of liability insurance.
minus-square2ndSkin@sh.itjust.workslinkfedilinkarrow-up5arrow-down2·1 年前So, you learned about .bashrc today, and you’re now an expert? Perhaps stand down and let the experts have their say.
minus-square2ndSkin@sh.itjust.workslinkfedilinkarrow-up5arrow-down3·1 年前No, that’s not how it works. You really should stop talking shit about things you know nothing about. Truly sad.
You would have to know the root password.
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.
You would have to KNOW the root password.
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.
As root:
Anything else?
There are many ways to harden against it, but “just disable root auth” is not really it, since it in itself does not add much.
??
Seriously - if you’re “advising” on linux best practices, get lots of liability insurance.
So, you learned about .bashrc today, and you’re now an expert?
Perhaps stand down and let the experts have their say.
No, that’s not how it works.
You really should stop talking shit about things you know nothing about.
Truly sad.