This worked with CentOS 6.4 with the latest core-autodeploy.sh (zenoss-4.2.4-1859.el6.x86_64)
zenoss> easy_install python-ldap
zenoss> easy_install products.ldapmultiplugins
zenoss> easy_install products.ldapuserfolder
zenoss> zopectl restart
Then did this: http://blogs.oregonstate.edu/sig/2013/03/28/enabling-ldap-authentication-in-zenoss-core-4-2-and-centos-6/
My config needed cn for the user name
http://community.zenoss.org/message/30124#30124 got the groups working but I basically just mapped an LDAP group to the zenoss Manager group from the groups tab.
Nice stuff!