Security vendor Fortinet has hit back against tests by NSS Labs that showed one of its firewalls could be hacked using a ‘TCP split handshake attack’ Fortigate-3950B was only vulnerable to this attack if used independently of the Intrusion Prevention System (IPS) and anti-virus modules. Fortinet said it had developed IPS signatures to block this type of attack and would also modify its firewall functionality to do the same. The company said it planned a firmware update for the FortiOS UTM operating system for later this year.”]
Source: https://www.csoonline.com/article/2127955/fortinet-unhappy-with-tests-showing-firewall-flaw.html