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The macOS system logon window must be configured to prompt for username and password.


Overview

Finding ID Version Rule ID IA Controls Severity
V-257244 APPL-13-005052 SV-257244r905365_rule Medium
Description
The logon window must be configured to prompt all users for both a username and a password. By default, the system displays a list of known users at the logon screen. This gives an advantage to an attacker with physical access to the system, as the attacker would only have to guess the password for one of the listed accounts.
STIG Date
Apple macOS 13 (Ventura) Security Technical Implementation Guide 2023-08-28

Details

Check Text ( C-60929r905363_chk )
Verify the macOS system is configured to prompt for username and password at the logon window with the following command:

/usr/sbin/system_profiler SPConfigurationProfileDataType | /usr/bin/grep "SHOWFULLNAME"

SHOWFULLNAME = 1;

If "SHOWFULLNAME" is not set to "1", this is a finding.
Fix Text (F-60870r905364_fix)
Configure the macOS system to prompt for username and password at the logon window by installing the "Login Window Policy" configuration profile.