The reset period for the account lockout counter must be configured to 15 minutes or greater on Windows 2008 R2.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-1098	4.003	SV-32285r3_rule		Medium

Description
The account lockout feature, when enabled, prevents brute-force password attacks on the system. This parameter specifies the period of time that must pass after failed logon attempts before the counter is reset to "0". The smaller this value is, the less effective the account lockout feature will be in protecting the local system.

STIG	Date
Windows Server 2008 R2 Domain Controller Security Technical Implementation Guide	2019-06-18

Details

Check Text ( C-74335r1_chk )
Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Account Policies >> Account Lockout Policy. If the "Reset account lockout counter after" value is less than "15" minutes, this is a finding.

Fix Text (F-81007r1_fix)
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Account Policies >> Account Lockout Policy >> "Reset account lockout counter after" to at least "15" minutes.