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FireCracker: A Framework for Inferring Firewall Policies Using Smart Probing

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firewalls

Overview A firewall policy that is correct and complete is crucial to the safety of a computer network. An adversary will benefit a lot from knowing the policy or its semantics. This paper proposes a framework that could be used to blindly discover a firewall policy remotely as a black box and without prior knowledge about the network configuration. It shows how an attacker can reconstruct a firewall's policy by probing the firewall with tailored packets into a network and forming an idea of what the policy looks like. The proposed methodology shows how to discover a policy that is semantically equivalent to the original one used in the deployed firewall.

Further White Paper Details
Publisher	DePaul University	File Format	PDF
Date Published	September 2007
Format	White Papers
Topics	Firewalls, Network Security, Security Tools

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