CVE-2008-5112

The LDAP server in Active Directory in Microsoft Windows 2000 SP4 and Server 2003 SP1 and SP2 responds differently to a failed bind attempt depending on whether the user account exists and is permitted to login, which allows remote attackers to enumerate valid usernames via a series of LDAP bind requests, as demonstrated by ldapuserenum.

Date published : 2008-11-17

http://www.securityfocus.com/bid/32305

http://labs.portcullis.co.uk/application/ldapuserenum/