On the Analysis of Coverage Feedback in a Fuzzing Proprietary System

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Abstract
Coverage feedback is one of the key mechanisms for improving the effectiveness of fuzzers by measuring and comparing the executed code regions while processing input data. In general, such guidance should always improve the performance of fuzzers to better find unexplored code regions. However, proprietary systems with uncommon I/O interfaces (e.g., UAV system, IoT devices, satellite firmware) require extensive engineering/porting efforts to apply coverage feedback support in developing their fuzzing platform. In this paper, we evaluate the detailed efficacy of coverage feedback in fuzzing based on 44 real-world bugs we found using OSS-Fuzz. Our analysis uncovered when and how code coverage information can be helpful, and our experiment demonstrates that although coverage guidance is always helpful to some extent, its effectiveness depends on various external factors. Therefore, such factors should be carefully considered for optimizing the cost and efficiency in designing the fuzzing architecture of proprietary systems.
Funding Information
  • Convergence security core talent training business support program (IITP-2024-RS-2023-00266615, KRIT-CT-22-074, KHU-20230880)
  • KRIT (Korea Research Institute for defense Technology planning and advancement) (IITP-2024-RS-2023-00266615, KRIT-CT-22-074, KHU-20230880)
  • Defense Acquisition Program Administration (DAPA) (IITP-2024-RS-2023-00266615, KRIT-CT-22-074, KHU-20230880)
  • Kyung Hee University (IITP-2024-RS-2023-00266615, KRIT-CT-22-074, KHU-20230880)

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