Check Point Firewall-1 4.1 up to NG AI R55 allows remote attackers to obtain potentially sensitive information by sending an Internet Key Exchange (IKE) with a certain Vendor ID payload that causes Firewall-1 to return a response containing version and other information.
https://exchange.xforce.ibmcloud.com/vulnerabilities/16434
http://www.securityfocus.com/bid/10558
http://www.nta-monitor.com/news/checkpoint2004/index.htm
http://archives.neohapsis.com/archives/fulldisclosure/2004-06/0477.html