Information
The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised.
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. Password length is one factor of several that helps to determine strength and how long it takes to crack a password. The shorter the password, the lower the number of possible combinations that need to be tested before the password is compromised.
Use of more characters in a password helps to exponentially increase the time and/or resources required to compromise the password.
NOTE: Nessus has not performed this check. Please review the benchmark to ensure target compliance.
Solution
From the vSphere Web Client go to Administration >> Single Sign-On >> Configuration >> Policies >> Password Policy. Click 'Edit'. Set the Minimum Length to '15' and click 'OK'.