UBTU-24-100660 Ubuntu 24.04 LTS must use the "SSSD" package for multifactor authentication services.
All changes in this version
Maps to IA-2(1), IA-2(2), IA-2(6) via CCI-004046, CCI-004047, CCI-000765, CCI-000766
Title
Ubuntu 24.04 LTS must use the "SSSD" package for multifactor authentication services.
Control
Verify the "sssd.service" is enabled and active with the following commands: $ sudo systemctl is-enabled sssd enabled $ sudo systemctl is-active sssd active If "sssd.service" is not active or enabled, 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. Factors include: 1) Something a user knows (e.g., password/PIN); 2) Something a user has (e.g., cryptographic identification device, token); and 3) Something a user is (e.g., biometric). A privileged account is defined as an information system account with authorizations of a privileged user. Network access is defined as access to an information system by a user (or a process acting on behalf of a user) communicating through a network (e.g., local area network, wide area network, or the internet). The DoW common access card (CAC) with DoW-approved PKI is an example of multifactor authentication. Satisfies: SRG-OS-000705-GPOS-00150, SRG-OS-000105-GPOS-00052, SRG-OS-000106-GPOS-00053, SRG-OS-000107-GPOS-00054, SRG-OS-000108-GPOS-00055, SRG-OS-000375-GPOS-00160
Related controls
CCI-000765, CCI-000766, CCI-004046, CCI-004047
Fix
Enable the "sssd.service to start automatically on reboot with the following command: $ sudo systemctl enable sssd.service ensure the "sssd" service is running $ sudo systemctl start sssd.service