Cisco Security Agent Management Center (CSAMC) 5.1 before 5.1.0.79 does not properly handle certain LDAP error messages, which allows remote attackers to bypass authentication requirements via an empty password when using an external LDAP server.
https://exchange.xforce.ibmcloud.com/vulnerabilities/29955
http://www.vupen.com/english/advisories/2006/4308
http://www.securityfocus.com/bid/20852
http://www.kb.cert.org/vuls/id/778648
http://www.cisco.com/en/US/products/products_security_advisory09186a00807726f7.shtml