I doubt you will find a One-Stop-Shop kind of solution that actually works well. Your best bet will be to review one of the excellent hardening guidelines and implement what makes sense for you.
That being said, you should probably check out two projects
- Bastille
- Tiger
If you have a little more resources available some vulnerability assessment products can do configuration audits. For instance, ProfessionalFeed subscribers to Nessus have a large number of configuration audits available, including many CIS benchmarks.
All of these will inspect your install and make some recommendations on what to change or tell you how this install deviates from the standard. However, their base rulesets may very well not work for you. You really need to modify their checks to match how you want your environment to look.