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UBTU-24-400370 Ubuntu 24.04 LTS must map the authenticated identity to the user or group account for PKI-based authentication.

DISA STIG library V1R7
All changes in this version
first version loaded CAT I

Maps to IA-5(2) via CCI-000187

Title

Ubuntu 24.04 LTS must map the authenticated identity to the user or group account for PKI-based authentication.

Control

Verify that authenticated certificates are mapped to the appropriate user group in the "/etc/sssd/sssd.conf" file with the following command: $ grep -i ldap_user_certificate /etc/sssd/sssd.conf ldap_user_certificate=userCertificate;binary

Discussion

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.

Related controls

CCI-000187

Fix

Configure sssd to map authenticated certificates to the appropriate user group by adding the following line to the "/etc/sssd/sssd.conf" file: ldap_user_certificate=userCertificate;binary