Unspecified vulnerability in Citrix Access Gateway with Advanced Access Control (AAC) 4.2 before 20060914, when AAC is configured to use LDAP authentication, allows remote attackers to bypass authentication via unknown vectors.
https://exchange.xforce.ibmcloud.com/vulnerabilities/28990
http://www.vupen.com/english/advisories/2006/3643
http://www.securityfocus.com/bid/20066
http://www.kb.cert.org/vuls/id/658620
http://support.citrix.com/article/CTX110950
http://support.citrix.com/article/CTX110439