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The macOS system must enforce multifactor authentication for the su command.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-268545APPL-15-003051SV-268545r1034575_ruleCCI-000765medium
Description
The system must be configured such that, when the su command is used, multifactor authentication is enforced. 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/su 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, SRG-OS-000705-GPOS-00150
STIGDate
Apple macOS 15 (Sequoia) Security Technical Implementation Guide2026-02-06

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (7) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

IAC-06Multi-Factor Authentication (MFA)
0.50
IAC-06.1Network Access to Privileged Accounts
0.50
IAC-06.2Network Access to Non-Privileged Accounts
0.50
IAC-06.3Local Access to Privileged Accounts
0.50
IAC-06.4Out-of-Band Multi-Factor Authentication
0.50
IAC-10.7Hardware Token-Based Authentication
0.50
TDA-02.2Information Assurance Enabled Products
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (67) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-11Device Lock
1.00
AC-11(1)Pattern-hiding Displays
1.00
AC-12Session Termination
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00
AC-2(3)Disable Accounts
1.00

+57 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.5.3
1.00
CCI1 mapping
CCI-000765
1.00

Details

Check Text (C-268545r1034575_chk)

Verify the macOS system is configured to enforce multifactor authentication for the su command with the following command: /usr/bin/grep -Ec '^(auth\s+sufficient\s+pam_smartcard.so|auth\s+required\s+pam_rootok.so)' /etc/pam.d/su If the result is not "2", this is a finding.

Fix Text (F-72476r1034574_fix)

Configure the macOS system to enforce multifactor authentication for the su command with the following commands: /bin/cat > /etc/pam.d/su << SU_END # su: auth account password session auth sufficient pam_smartcard.so auth required pam_rootok.so auth required pam_group.so no_warn group=admin,wheel ruser root_only fail_safe account required pam_permit.so account required pam_opendirectory.so no_check_shell password required pam_opendirectory.so session required pam_launchd.so SU_END # Fix new file ownership and permissions /bin/chmod 644 /etc/pam.d/su /usr/sbin/chown root:wheel /etc/pam.d/su