CGI.pl in Bugzilla before 2.14.1, when using LDAP, allows remote attackers to obtain an anonymous bind to the LDAP server via a request that does not include a password, which causes a null password to be sent to the LDAP server.
https://exchange.xforce.ibmcloud.com/vulnerabilities/7812
http://www.securityfocus.com/bid/3792
http://www.bugzilla.org/security2_14_1.html
http://rhn.redhat.com/errata/RHSA-2002-001.html
http://bugzilla.mozilla.org/show_bug.cgi?id=54901
http://archives.neohapsis.com/archives/bugtraq/2002-01/0034.html