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NIST SAMATE Project and OMG Michael Kass NIST Information Technology Laboratory http://samate.nist.gov March 11, 2008
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Overview NIST SAMATE Project Testing the Tools Automated Test Case Generation CWE Formalization SAMATE and CWE Effectiveness Program TCG: Where are we now? Other SAMATE work
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SAMATE Software Assurance Metrics and Tool Evaluation Project Co-sponsored by DHS to: –Create tests and tool specifications for software assurance (SwA) tool evaluations –Develop metrics for measuring SwA tool effectiveness –Identify gaps in current SwA technology –Make recommendations to DHS for areas of research
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Testing the Tools SAMATE Reference Dataset (SRD) –Online repository of tool tests –Thousands of source code samples containing examples of CWE’s Discrete tests – developed by NIST, contributed by tool developers, academia and public Tests are based upon interpretation of a particular weakness definition (currently no formal white-box definitions) Tests are freely available at http://samate.nist.gov/SRD
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Automated Test Case Generation (TCG) Funded by DHS Part of SAMATE effort to expand SRD to cover as many CWE’s as possible Based upon OMG MDA Technology (MOF, UML, XMI) –Uses formalized CWE definitions (SBVR) Contractual Formalization that is based on OMG standard, Semantics of Business Vocabulary and Rules (SBVR) and Technical Formalization that is based on OMG standard, Knowledge Discovery Metamodel (KDM) Formal CWE Definitions (SBVR/KDM) Tool Tests (code)Code Analysis Tool KDM
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CWE Formalization White Box Definitions : Focus on the structure patterns of the inner components and their interactions (that determine certain observable behavior) –Provide “compliance points” that: Describe patterns of code (as they can be directly identified in code) Identify discernable properties of patterns of code Enable automation Enable direct step-by-step comparisons of the decision procedures implemented within tool
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SAMATE and CWE Effectiveness Program Long-term goal : To auto-generate tool tests using formal CWE definitions in collaboration with MITRE’s CWE Effectiveness program –Provide tests “ad hoc” to tool developers –Developers run tests against their tool –Developers can publish test results
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TCG: Where are we now? TCG Status: –Can generate tests for 3 CWE’s –Near term, NIST will expand formal CWE definitions to 25 “high priority” CWE’s based upon their: Occurrence Severity Recognized by tools today –Long term, TGC will cover as many CWEs as possible With coding complexities
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Other SAMATE Projects Ongoing work –Developing tests for web application scanners –Adding to existing tests for source code security analyzers –Performing tool effectiveness studies New areas –Testing binary analyzers –The static analyzer tool exposition (SATE) –Software transparency/pedigree information –Malware research protocols
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