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UBTU-22-612040 Ubuntu 22.04 LTS must map the authenticated identity to the user or group account for PKI-based authentication.

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

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

Title

Ubuntu 22.04 LTS must map the authenticated identity to the user or group account for PKI-based authentication.

Control

Verify that "use_mappers" is set to "pwent" in "/etc/pam_pkcs11/pam_pkcs11.conf" file by using the following command: $ grep -i use_mappers /etc/pam_pkcs11/pam_pkcs11.conf use_mappers = pwent If "use_mappers" does not contain "pwent", is commented out, or is missing, this is a finding.

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

Set "use_mappers=pwent" in "/etc/pam_pkcs11/pam_pkcs11.conf" or, if there is already a comma-separated list of mappers, add it to the list, separated by comma, and before the null mapper. If the system is missing an "/etc/pam_pkcs11/" directory and an "/etc/pam_pkcs11/pam_pkcs11.conf", find an example to copy into place and modify accordingly at "/usr/share/doc/libpam-pkcs11/examples/pam_pkcs11.conf.example.gz".