sudo:/etc/sudoers 可被任何人写 解决方案

转发:https://blog.csdn.net/liujianfei526/article/details/45936739?_t_t_t=0.8735525052350415
问题:
sudo:sudo /etc/sudoers is world writable
sudo:no valid sudoers sources found ,quitting
sudo:unable to initialize policy plugin
解决方案:

sudoers的权限被改了,改回来就好了。

pkexec  chmod   0440  /etc/sudoers