The AIX operating system must be configured to use a valid server_ca.pem file.

To assure accountability and prevent unauthenticated access, privileged and 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). The DoD CAC with DoD-approved PKI is an example of multifactor authentication.

Verify the location of the "server_ca.pem" file: # grep -i "trustedcas" /etc/security/pmfa/pam_pmfa.conf | grep -v '#' TRUSTEDCAS = /<path_to_file>/server_ca.pem Verify that the configured "server_ca.pem" file exists in the defined location: # ls -la /<path_to_file>/server_ca.pem If the file does not exist, this is a finding.

Configure the system to use a valid "server_ca.pem" file.