Sandal6823@sh.itjust.works to Linux@lemmy.ml · edit-229 天前Why disable ssh login with root on a server if I only log in with keys, not password?message-squaremessage-square81linkfedilinkarrow-up1107arrow-down14file-text
arrow-up1103arrow-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 · edit-229 天前message-square81linkfedilinkfile-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-squareShortN0te@lemmy.mllinkfedilinkarrow-up4arrow-down6·29 天前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-down3·29 天前You would have to KNOW the root password.
minus-squareShortN0te@lemmy.mllinkfedilinkarrow-up4arrow-down5·29 天前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-229 天前As root: # chattr +i /home/ShortN0te/.bashrc Anything else?
minus-squareShortN0te@lemmy.mllinkfedilinkarrow-up4arrow-down4·29 天前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-down2·29 天前?? Seriously - if you’re “advising” on linux best practices, get lots of liability insurance.
minus-square2ndSkin@sh.itjust.workslinkfedilinkarrow-up5arrow-down2·29 天前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-down3·29 天前No, that’s not how it works. You really should stop talking shit about things you know nothing about. Truly sad.
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.