Anonymous enumeration of SAM accounts must not be allowed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-26283	WN08-SO-000051	SV-48508r2_rule	ECSC-1	High

Description
Anonymous enumeration of SAM accounts allows anonymous log on users (null session connections) to list all accounts names, thus providing a list of potential points to attack the system.

STIG	Date
Windows 8 / 8.1 Security Technical Implementation Guide	2015-03-09

Details

Check Text ( None )
None

Fix Text (F-41632r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network access: Do not allow anonymous enumeration of SAM accounts" to "Enabled".