Friday, August 15, 2008

A Fuzzy risk calculation approach as alternative to the CVSS computation

In my previous post I asked some questions about CVSSv2. The looking around for information about CVSS I stumbled over this paper: A Fuzzy Risk Calculations Approach for a Network Vulnerability Ranking System (TM 2007-090). The author describes a fully fuzzy systems approach for ranking vulnerabilities that also can rank networks. The approach is partly based on CVSSv1 and its performance is compared to CVSSv1. It would be interesting to adjust the approach to CVSSv2. One thing that is solved in the paper is that different combinations of input values should yield different output values. This seems to a problem in the CVSSv2, see here and here.

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