The delay between login prompts following a failed login attempt must be at least 4 seconds.

As an immediate return of an error message, coupled with the capability to try again, may facilitate automatic and rapid-fire brute-force password attacks by a malicious user.

Check the SLEEPTIME parameter in the /etc/default/login file.

# grep ^SLEEPTIME /etc/default/login

If the output is not SLEEPTIME=4 or more, this is a finding.

The root role is required.

# pfedit the /etc/default/login 

Locate the line containing:

SLEEPTIME

Change the line to read:

SLEEPTIME=4