Ren Ding (Georgia Institute of Technology), Hong Hu (Georgia Institute of Technology), Wen Xu (Georgia Institute of Technology), Taesoo Kim (Georgia Institute of Technology)

Software vendors collect crash reports from end-users to assist debugging and testing of their products. However, crash reports may contain user’s private information, like names and passwords, rendering users hesitated to share the crash report with developers. We need a mechanism to protect user’s privacy from crash reports on the client-side, and meanwhile, keep sufficient information to support server-side debugging.

In this paper, we propose the DESENSITIZATION technique that generates privacy-aware and attack-preserving crash reports from crashed processes. Our tool uses lightweight methods to identify bug- and attack-related data from the memory, and removes other data to protect user’s privacy. Since the desensitized memory has more null bytes, we store crash reports in spare files to save the network bandwidth and the server-side storage. We prototype DESENSITIZATION and apply it to a large number of crashes from several real-world programs, like browser and JavaScript engine. The result shows that our DESENSITIZATION technique can eliminate 80.9% of non-zero bytes from coredumps, and 49.0% from minidumps. The desensitized crash report can be 50.5% smaller than the original size, which significantly saves resources for report submission and storage. Our DESENSITIZATION technique is a push-button solution for the privacy-aware crash report.

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Tao Chen (City University of Hong Kong), Longfei Shangguan (Microsoft), Zhenjiang Li (City University of Hong Kong), Kyle Jamieson (Princeton University)

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Taemin Park (University of California, Irvine), Karel Dhondt (imec-DistriNet, KU Leuven), David Gens (University of California, Irvine), Yeoul Na (University of California, Irvine), Stijn Volckaert (imec-DistriNet, KU Leuven), Michael Franz (University of California, Irvine, USA)

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Benjamin E. Ujcich (University of Illinois at Urbana-Champaign), Samuel Jero (MIT Lincoln Laboratory), Richard Skowyra (MIT Lincoln Laboratory), Steven R. Gomez (MIT Lincoln Laboratory), Adam Bates (University of Illinois at Urbana-Champaign), William H. Sanders (University of Illinois at Urbana-Champaign), Hamed Okhravi (MIT Lincoln Laboratory)

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Vasilios Mavroudis (University College London), Karl Wüst (ETH Zurich), Aritra Dhar (ETH Zurich), Kari Kostiainen (ETH Zurich), Srdjan Capkun (ETH Zurich)

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