"/etc/sudoers is world writable" on Mac OS X Mavericks

Question

Currently, I am working on an OSX Maverick, and I can't use sudo command in Terminal.

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My-Mac:~ phucnd$ sudo

sudo: /etc/sudoers is world writable

sudo: no valid sudoers sources found, quitting.

How can i fix it ?

Answer 1

Open Disk Utility, select you disk and click "Repair Disk Permissions"

Answer 2

Finder → Go → Go to folder:

and enter /etc/sudoers and push Go button.

Right click on the sudoers and change ther permission.

Answer 3

1.Enable root user:
System Preferences -> Users&Groups -> Login options -> Network Account Server -> Join -> Open Directory Utility -> Edit(menu) -> Enable Root User

2.switch to root,change /etc/sudoers permissions
$su
$chmod 440 /etc/sudoers

Answer 4

Finder -> Go -> Go to folder

and enter /etc/sudoers and push Go button. Right click on the sudoers -> click on get info -> change permission to: System: Read & Write Wheel: Read Only Everyone: Read Only

Lock it and open a terminal and try again.

All the best!

Answer 5

Just use these commands below under any terminal will do:

1. $ su

2. $ chmod 440 /etc/sudoers

Answer 6

1. Open `/etc/ directory:
2. Right click on sudoers > Get Info
3. Click lock icon
4. Set permissions as follows:

5. Try running sudo ls and see if you get any errors. If you get an error about sudoers.d just delete that folder if its empty.