OL 9 must enable certificate-based smart card authentication.

Without the use of multifactor authentication (MFA), the ease of access to privileged functions is greatly increased. MFA requires using two or more factors to achieve authentication. A privileged account is defined as an information system account with authorizations of a privileged user. The DoW common access card (CAC) with DoW-approved PKI is an example of multifactor authentication.

Satisfies: SRG-OS-000375-GPOS-00160, SRG-OS-000105-GPOS-00052

Verify that OL 9 has smart cards enabled in System Security Services Daemon (SSSD) if smart cards are used for MFA with the following command:

$ sudo grep pam_cert_auth /etc/sssd/sssd.conf pam_cert_auth = True

If "pam_cert_auth" is not set to "True", the line is commented out, or the line is missing, this is a finding.

Configure OL 9 to enable certificate-based smart card authentication.

Edit the file "/etc/sssd/sssd.conf" and add or edit the following line:

pam_cert_auth = True