The macOS system must disable root login.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-268443	SRG-OS-000104-GPOS-00051	APPL-15-000100	SV-268443r1034269_rule	2025-02-20	1

Description
To assure individual accountability and prevent unauthorized access, logging in as root at the login window must be disabled. The macOS system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator, and administrator users must never log in directly as root. Satisfies: SRG-OS-000104-GPOS-00051, SRG-OS-000109-GPOS-00056, SRG-OS-000364-GPOS-00151

Description

To assure individual accountability and prevent unauthorized access, logging in as root at the login window must be disabled. The macOS system must require individuals to be authenticated with an individual authenticator prior to using a group authenticator, and administrator users must never log in directly as root. Satisfies: SRG-OS-000104-GPOS-00051, SRG-OS-000109-GPOS-00056, SRG-OS-000364-GPOS-00151

ℹ️ Check
Verify the macOS system is configured to disable root login with the following command: /usr/bin/dscl . -read /Users/root UserShell 2>&1 \| /usr/bin/grep -c "/usr/bin/false" If the result is not "1", this is a finding.

✔️ Fix
Configure the macOS system to disable root login with the following command: /usr/bin/dscl . -create /Users/root UserShell /usr/bin/false