The built-in Windows password complexity policy must be enabled.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-1150	3.028	SV-32298r2_rule		Medium

Description
The use of complex passwords increases their strength against attack. The built-in Windows password complexity policy requires passwords to contain at least 3 of the 4 types of characters (numbers, upper- and lower-case letters, and special characters), as well as preventing the inclusion of user names or parts of.

STIG	Date
Windows Server 2008 R2 Domain Controller Security Technical Implementation Guide	2016-07-22

Details

Check Text ( None )
None

Fix Text (F-71581r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings >> Security Settings >> Account Policies >> Password Policy >> "Password must meet complexity requirements" to "Enabled".