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What happens if I give "777" permission to /etc/sudoers? I am looking at the security perspective. I want to know the importance of /etc/sudoers file as well.

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Anyone on your system, including anyone who can exploit any server on your system, can promote any user to root. This is basically removing security.

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However, sudo will refuse to run at all if the sudoers file is writable by anyone but root. – grawity Feb 20 '12 at 17:58

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