Firestorm – how to avoid the latest Next Generation Firewall vulnerability

A new, severe vulnerability in Next Generation Firewalls was earlier this week unveiled by cyber threat detection specialist, Cynet. The vulnerability, dubbed FireStorm, allows an internal entity or malicious code to interact and extract data out of an organisation, completely bypassing the firewall limitation. Continue reading “Firestorm – how to avoid the latest Next Generation Firewall vulnerability”

How do you evaluate an Information Exchange Gateway solution?

How do you evaluate an Information Exchange Gateway solution? I’ve blogged previously on Cyber Matters about how Information Exchange Gateways (IEGs) need to be built in a flexible manner to meet a variety of customer requirements. The other big question from potential customers is how do they know that they can trust a solution? Continue reading “How do you evaluate an Information Exchange Gateway solution?”

Guards are not Air Gaps

“An air gap is a network security measure that consists of ensuring that a secure computer network is physically isolated from unsecured networks, such as the public Internet or an unsecured local area network.”  (Wikipedia)

Note the emphasis in the word physically.

A number of forums have discussed whether data diodes are equivalent to air gaps in one direction, including a number of articles on Cyber Matters.   In reality you can argue it both ways.

Continue reading “Guards are not Air Gaps”

Secure Delivery of a Payload via a Protocol Break

A secure information exchange consists of two distinct elements: the information you need to convey – the payload, and the technical method used to carry the payload – the protocol. Attackers wishing to break into your network can exploit either of these: the protocol or the payload.

In this blog we briefly look at protecting protocol-based attacks. In a future blog we will look at content-based (payload) attacks.

Continue reading “Secure Delivery of a Payload via a Protocol Break”

Diodes are Diodes, Guards are Guards

Over the last 3-5 years Data Diodes have grown in popularity as a solution for moving data between isolated networks. With this has come creative marketing to leverage the term ‘Diode’ for solutions that are anything but.

Let’s just take a few moments to revise some of the fundamental modes of secure information exchange.

Continue reading “Diodes are Diodes, Guards are Guards”