Security weakness found in common firewalls

A recent study found that some of the most commonly used firewalls could be hacked by cybercriminals.

That’s word from a recent report by security researcher NSS Labs.

The study tested popular firewalls from Cisco, Check Point, Fortinet, Juniper, the Palo Alto Networks and SonicWall and found that five out of the six (every one except the Check Point device) were vulnerable to a type of attack known as the “TCP Split Handshake Attack.”

The vulnerability can allow hackers to trick a firewall into thinking an IP connection is coming from a trusted device behind the firewall, Network World reports.

Vendors are working with NSS Labs to patch the vulnerability.

The entire report can be purchased from NSS Labs here.

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