Information
The macOS system must enforce multifactor authentication for privilege escalation through the sudo command.
GROUP ID: V-259549RULE ID: SV-259549r1009602
The system must be configured to enforce multifactor authentication when the sudo command is used to elevate privilege.
All users must go through multifactor authentication to prevent unauthenticated access and potential compromise to the system.
IMPORTANT: Modification of Pluggable Authentication Modules (PAM) now requires user authorization, or use of a Privacy Preferences Policy Control (PPPC) profile from MDM that authorizes modifying system administrator files or full disk access.
Note: /etc/pam.d/sudo will be automatically modified to its original state following any update or major upgrade to the operating system.
Satisfies: SRG-OS-000105-GPOS-00052,SRG-OS-000106-GPOS-00053,SRG-OS-000107-GPOS-00054,SRG-OS-000108-GPOS-00055,SRG-OS-000112-GPOS-00057
Solution
Configure the macOS system to enforce multifactor authentication for privilege escalation through the sudo command with the following commands:
/bin/cat > /etc/pam.d/sudo << SUDO_END
sudo: auth account password session
auth sufficient pam_smartcard.soauth required pam_opendirectory.soauth required pam_deny.soaccount required pam_permit.sopassword required pam_deny.sosession required pam_permit.soSUDO_END
/bin/chmod 444 /etc/pam.d/sudo/usr/sbin/chown root:wheel /etc/pam.d/sudo
Item Details
Category: IDENTIFICATION AND AUTHENTICATION
References: 800-53|IA-2(1), 800-53|IA-2(2), 800-53|IA-2(3), 800-53|IA-2(4), 800-53|IA-2(8), CAT|II, CCI|CCI-000765, CCI|CCI-000766, CCI|CCI-000767, CCI|CCI-000768, CCI|CCI-001941, CCI|CCI-004047, Rule-ID|SV-259549r1009602_rule, STIG-ID|APPL-14-003052, Vuln-ID|V-259549
Control ID: 672ece1506ace79fbf3cfc165869211fcd394e28d40af74df131286e53596c9b