Everything was fine last night. Then this morning I found that sudo seems to be broken. Everything I enter with sudo I get the below message.

sudo: /etc/sudo.conf is world writable
sudo: /etc/sudo.conf is world writable
sudo: /etc/sudoers is world writable
sudo: no valid sudoers sources found, quitting
sudo: error initializing audit plugin sudoers_audit

I found a fix but the fix requires that I use sudo to enter commands which I am unable to do. What gives? Any ideas?