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RHEL-09-611165 RHEL 9 must enable certificate based smart card authentication.

DISA STIG library V2R10
All changes in this version
first version loaded CAT II

Maps to IA-2(1), IA-2(6), IA-2(11) via CCI-000765, CCI-004046, CCI-004047, CCI-001948

Title

RHEL 9 must enable certificate based smart card authentication.

Control

Note: If the system administrator (SA) demonstrates the use of an approved alternate multifactor authentication method, this requirement is Not Applicable. To verify that RHEL 9 has smart cards enabled in System Security Services Daemon (SSSD), run the following command: $ sudo grep -ir pam_cert_auth /etc/sssd/sssd.conf /etc/sssd/conf.d/ 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.

Discussion

Without the use of multifactor authentication, the ease of access to privileged functions is greatly increased. Multifactor authentication 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

Related controls

CCI-000765, CCI-001948, CCI-004046, CCI-004047

Fix

Edit the file "/etc/sssd/sssd.conf" or a configuration file in "/etc/sssd/conf.d" and add or edit the following line: pam_cert_auth = True