CAS Maestro allows you to configure your centralized authentication service, CAS, for an integrated log in with WordPress. LDAP is optional.
This plugin allows users to be authenticated via CAS, and logins to be controlled via LDAP.
Plugin to integrate WordPress or WordPressMU with existing CAS architectures. Based largely on Stephen Schwink's CAS Authentication plugin.
Authorizer limits login attempts, restricts access to specific users, and authenticates against external sources (OAuth2, Google, LDAP, or CAS).