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.

Riku_Kobayashi · 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

Milad Allahyari · 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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