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Check: APPL-15-000033

Apple macOS 15 (Sequoia) STIG: APPL-15-000033 (in versions v1 r3 through v1 r1)

Title

The macOS system must disable FileVault automatic login. (Cat II impact)

Discussion

If FileVault is enabled, automatic login must be disabled so that both FileVault and login window authentication are required. The default behavior of macOS when FileVault is enabled is to automatically log in to the computer once successfully passing FileVault credentials. NOTE: DisableFDEAutoLogin does not have to be set on Apple Silicon-based macOS systems that are smart card enforced, as smart cards are available at preboot.

Check Content

Verify the macOS system is configured to disable FileVault automatic login with the following command: /usr/bin/osascript -l JavaScript << EOS $.NSUserDefaults.alloc.initWithSuiteName('com.apple.loginwindow')\ .objectForKey('DisableFDEAutoLogin').js EOS If the result is not "true", this is a finding.

Fix Text

Configure the macOS system to disable FileVault automatic login by installing the "com.apple.loginwindow" configuration profile. NOTE: To ensure continued access to the operating system, consult the supplemental guidance provided with the STIG before applying the configuration profile.

Additional Identifiers

Rule ID: SV-268434r1034242_rule

Vulnerability ID: V-268434

Group Title: SRG-OS-000080-GPOS-00048

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CCIs

CCIs tied to check.

Number	Definition
CCI-000213	Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-3	Access Enforcement