Moneris eSelectPlus PHP API SSL Certificate Validation Security Bypass Vulnerability
22 Nov. 2012
Summary
The PHP API of Moneris eSelectPlus is prone to a security-bypass vulnerability because the application fails to properly validate SSL certificates from a server.
Moneris eSelectPlus 2.03 PHP API does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate..