Software Engineering Institute | Carnegie Mellon University
Software Engineering Institute | Carnegie Mellon University

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White Paper

Predictive Models for Identifying Software Components Prone to Failure During Security Attacks

  • Abstract

    Sometimes software security engineers are given a product that they not familiar with and are asked to do a security analysis of it in a relatively short time. A knowledge of where vulnerabilities are most likely to reside can help prioritize their efforts. In general, software metrics can be used to predict fault- and failure-prone components for prioritizing inspection, testing, and redesign efforts. We believe that the security community can leverage this knowledge to design tools and metrics that can identify vulnerability- and attack-prone components early in the software life cycle. We analyzed a large commercial telecommunications software-based system and found that the presence of security faults correlates strongly with the presence of a more general category of reliability faults. This, of course, is not surprising if one accepts the notion that security faults are in many instances a subset of a reliability fault set. We discuss a model that can be useful for identifying attack-prone components and for prioritizing security efforts early in the software life cycle.

    Please note that, although this article is within the Best Practices section of BSI, the work described in it is exploratory and not yet mature enough to be a recommended practice.

     

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