Information
Amazon Linux 2023 must map the authenticated identity to the user or group account for PKI-based authentication.
GROUP ID: V-274060RULE ID: SV-274060r1120168
Without mapping the certificate used to authenticate to the user account, the ability to determine the identity of the individual user or group will not be available for forensic analysis.
Solution
Configure Amazon Linux 2023 to map the authenticated identity to the user or group account by adding or modifying the certmap section of the "/etc/sssd/sssd.conf file based on the following example:
[certmap/testing.test/rule_name]matchrule =<SAN>.*EDIPI@milmaprule = (userCertificate;binary={cert!bin})domains = testing.test
The "sssd" service must be restarted for the changes to take effect. To restart the "sssd" service, run the following command:
$ sudo systemctl restart sssd.service