I think this is really key. You have to realize that your employer may be of the type which says "Well anyone can do this CRUD stuff so we'll add him to the pile" and that is probably true, but if you're really capable and passionate you'll be doing the CRUD and learning new stuff too. Talk to people at work about the cool stuff, if you manager is someone you can talk to, talk to them about it. Learn what you can, build things. Find a non-CRUD project that you could do that would make your manager look good, then explain that to them and get their buy in. They are doing it to look good but you'll have solid experience on your resume when you blow town.

The biggest mistake new college grads make in their first job is that the only thing they can do is what their manager told them to do. Sure you have to do that stuff too but if you're smart, figure out a way to get that stuff done and get other fun stuff done. That stuff you get to pick for yourself so it will be, by definition, not CRUD.

You must absolutely refuse to work anything you do not actually want outside of work. That will make all the difference. If you for some reason would get a job outside of your profession would you do it outside work too? That goes for any profession. If you want to make difference you have to plan in some time for that. Not everyone is that lucky to get dream job right out of college, actually I believe most of us don't. Only you can create (a path to) your dream job.