The vCenter Server must prohibit password reuse for a minimum of five generations. (Cat II impact)
Password complexity, or strength, is a measure of the effectiveness of a password in resisting attempts at guessing and brute-force attacks. To meet password policy requirements, passwords need to be changed at specific policy-based intervals. If the information system or application allows the user to consecutively reuse their password when that password has exceeded its defined lifetime, the end result is a password that is not changed as per policy requirements.
From the vSphere Client, go to Administration >> Single Sign-On >> Configuration >> Policies >> Password Policy. View the value of the "Restrict reuse" setting. If the "Restrict reuse" policy is not set to "5" or more, this is a finding.
From the vSphere Client, go to Administration >> Single Sign-On >> Configuration >> Policies >> Password Policy. Click "Edit". Enter "5" into the "Restrict reuse" setting and click "OK".
The information system prohibits password reuse for the organization-defined number of generations.