Check Point Session Authentication Agent 4.1 Missing Authentication

Check Point Session Authentication agent version 4.1 and higher contains a flaw which is caused by lack of peer authentication in SSL communication. Encrypted communication between agent and security gateway has been introduced due to several issues which were revealed in the previous versions (4.0 and lower) of the product. Research showed that it is still possible to exploit previously known vulnerabilities - gateway impersonation and credential stealing - even though communication between agent and security gateway is utilizing SSL. Proof of concept code included.