Description
The Microsoft Azure Active Directory Passport (aka Passport-Azure-AD) library 1.x before 1.4.6 and 2.x before 2.0.1 for Node.js does not recognize the validateIssuer setting, which allows remote attackers to bypass authentication via a crafted token.
Remediation
References
http://www.securityfocus.com/bid/93213
http://www.securitytracker.com/id/1036996
https://github.com/AzureAD/passport-azure-ad/blob/master/SECURITY-NOTICE.MD
https://support.microsoft.com/kb/3187742