What version are you running?
1.6.3
What's the URL of the page containing the problem?
https://code-review.lindenlab.com/account/login/
What steps will reproduce the problem?
1. Set up LDAP service to prohibit anonymous searches (require bind before the search)
2. Configure ReviewBoard to use LDAP user authentication, but leave the "Anonymous User Mask" and "Anonymous User Password" fields empty.
3. Attempt to log in using a valid username and password
What is the expected output? What do you see instead?
The login attempt should succeed; ReviewBoard should be able to bind using the offered credentials, and then do the search for the required user information.
Instead, the login attempt fails because ReviewBoard attempts to search for the uid without binding first.