Microsoft has released the Security Compliance Manager 3.0 (SCM). This version includes support for Windows Server 2012, Windows 8, and Internet Explorer 10.
SCM enables you to quickly configure and manage computers and your private cloud using Group Policy and Microsoft System Center Configuration Manager. It provides ready-to-deploy policies and DCM configuration packs based on Microsoft Security Guide recommendations and industry best practices, allowing you to easily manage configuration drift, and address compliance requirements for Windows operating systems and Microsoft applications.
Basically in SCM 3.0 you can use predefined baselines, customize them or create completely new ones. Then you can export it from SCM 3.0 and apply it using an Active Directory GPO. To do this, create a new GPO in Group Policy Management, right click the GPO, import settings and complete the wizard.
You can also export existing GPO and then import it into SCM 3.0 and compare the differences.