I get this error trying to run sudo command sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set

Question

I get this error trying to run sudo command  "sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set"
In all our instances, yesterday evening there was no issues, but this morning I noticed that the apps are not working anymore. when I connected to my instances, i got the error when i try to run any command with sudo.

Please if someone had the same issue or have any idea why this happened, thanks in advance.

Answer

You may have changed the permissions on "/usr/bin/sudo".  
To correct the problem, access the site as the root user and execute the following command.  
However, a password must be set for the root user in advance.  
If it is not set up, this method cannot be used.  
```
su
chown root:root /usr/bin/sudo
chmod 4755 /usr/bin/sudo
```

For other methods, please refer to the following documents.  
https://repost.aws/knowledge-center/ec2-sudo-commands

Answer

I couldn't be a root user by using the "su" command because I didn't have a root password, but instead I used this command to become a root user:
`systemd-run --shell`
and after that:
`chown root:root /usr/bin/sudo && chmod 4755 /usr/bin/sudo`
My problem is solved.

I get this error trying to run sudo command sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set

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