The built-in guest account must be disabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-1113	WN12-SO-000003	SV-52855r1_rule		Medium

Description
A system faces an increased vulnerability threat if the built-in guest account is not disabled. This account is a known account that exists on all Windows systems and cannot be deleted. This account is initialized during the installation of the operating system with no password assigned.

STIG	Date
Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide	2017-04-28

Details

Check Text ( None )
None

Fix Text (F-45781r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Accounts: Guest account status" to "Disabled".