1.3.2 Ensure sudo commands use pty

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Information

sudo can be configured to run only from a psuedo-pty

Rationale:

Attackers can run a malicious program using sudo which would fork a background process that remains even when the main program has finished executing.

Impact:

editing the sudo configuration incorrectly can cause sudo to stop functioning.

Solution

edit the file /etc/sudoers or a file in /etc/sudoers.d/ with visudo -f and add the following line:

Defaults use_pty

See Also

https://workbench.cisecurity.org/files/3379