To assure accountability and prevent unauthenticated access, non-privileged users must utilize multifactor authentication to prevent potential misuse and compromise of the system.
Multifactor authentication uses two or more factors to achieve authentication.
Factors include: 1) Something you know (e.g., password/PIN); 2) Something you have (e.g., cryptographic identification device, token); and 3) Something you are (e.g., biometric).
A non-privileged account is any information system account with authorizations of a non-privileged user.
Network access is any access to an application by a user (or process acting on behalf of a user) where said access is obtained through a network connection.
The DoD CAC with DoD-approved PKI is an example of multifactor authentication.
Check
Verify the operating system uses multifactor authentication for network access to non-privileged accounts. If it does not, this is a finding.
Fix
Configure the operating system to use multifactor authentication for network access to non-privileged accounts.