From Stefan Gossner's Blog a reference and quick summary about a new CMS Security whitepaper:
A new whitepaper for MCMS has been released focusing on Security Best Practices.
This download consists of a security white paper and the 'Minimum permissions' batch script. The white paper explains how IT administrators can apply security best practices to Microsoft Content Management Server (MCMS) 2002 Service Pack 1a (SP1a) environments. It includes sections on MCMS security fundamentals; securing MCMS 2002 environments; advanced security information such as port numbers, minimum NTFS, and registry permissions; script samples; and links to additional information. This advanced level paper assumes readers are familiar with the fundamentals of MCMS, Active Directory, and Microsoft Windows Server 2003. The batch script sets NTFS and registry permissions on MCMS 2002 SP1a servers to the recommended minimum privileges.
You can find this article here.