Remote authentication from a CMS

Hello. I have a CMS with thousand of users. I want that each user authenticated into CMS enter to its Owncloud account without the authentication form that Owncloud displays to the user, that is, that user enter to ownclowd already authenticated by the CMS. ¿Is this possible? I must to say that Owncloud will be in a different server than CMS server, so the authentication must be remote.
Thanks in advance.

Single Sign On but it is an enterprise feature:

thanks @tflidd for your answer. I have no option to use the Enterprise version. Can you give me some guidance about another option to a remote authentication, due I can not use Enterprise version?