Details

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

Rationale:

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

Solution

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

Defaults use_pty

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/2971

This security hardening control applies to the following category of controls within NIST 800-53: Access Control.This control applies to the following type of system Unix.

References

• 800-53|AC-2(9)
• CSCv7|4.3

Source

• Tenable.com/audits