The OS X system must not allow an unattended or automatic logon to the system.

From Apple OS X 10.12 Security Technical Implementation Guide

Part of SRG-OS-000480-GPOS-00229

Associated with: CCI-000366

SV-90793r1_rule The OS X system must not allow an unattended or automatic logon to the system.

Vulnerability discussion

When automatic logons are enabled, the default user account is automatically logged on at boot time without prompting the user for a password. Even if the screen is later locked, a malicious user would be able to reboot the computer to log on. Disabling automatic logons mitigates this risk.

Check content

To check if the system is configured to automatically log on, run the following command: /usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep DisableAutoLoginClient If "com.apple.login.mcx.DisableAutoLoginClient" is not set to "1", this is a finding.

Fix text

This setting is enforced using the "Login Window Policy" configuration profile.

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