What Do Firewalls Protect? An Empirical Study of Firewalls, Vulnerabilities, and Attacks
نویسندگان
چکیده
Firewalls are a cornerstone of how sites implement “defense in depth.” Many security policies assume that outside attackers must first penetrate a firewall configured to block their access. This paper examines what firewalls protect against, and whether those protections are sufficient to warrant placing the current level of trust in firewalls.
منابع مشابه
Analysis of vulnerabilities in Internet firewalls
Firewalls protect a trusted network from an untrusted network by filtering traffic according to a specified security policy. A diverse set of firewalls is being used today. As it is infeasible to examine and test each firewall for all possible potential problems, a taxonomy is needed to understand firewall vulnerabilities in the context of firewall operations. This paper describes a novel metho...
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