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Prevention of Cross-update Privacy Leaks on Android
Computer Science and Information Systems, Tome 15 (2018) no. 1 Cet article a éte moissonné depuis la source Computer Science and Information Systems website

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Updating applications is an important mechanism to enhance their availability, functionality, and security. However, without careful considerations, application updates can bring other security problems. In this paper, we consider a novel attack that exploits application updates on Android: a cross-update privacy-leak attack called COUPLE. The COUPLE attack allows an application to secretly leak sensitive data through the cross-update interaction between its old and new versions; each version only has permissions and logic for either data collection or transmission to evade detection. We implement a runtime security system, BREAKUP, that prevents cross-update sensitive data transactions by tracking permission-use histories of individual applications. Evaluation results show that BREAKUP’s time overhead is below 5%. We further show the feasibility of the COUPLE attack by analyzing the versions of 2;009 applications (28;682 APKs).
Keywords: Android, Privacy, Information flow, Permission 
@article{CSIS_2018_15_1_a5,
     author = {Beumjin Cho and Sangho Lee and Meng Xu and Sangwoo Ji and Taesoo Kim and Jong Kim},
     title = {Prevention of {Cross-update} {Privacy} {Leaks} on {Android}},
     journal = {Computer Science and Information Systems},
     year = {2018},
     volume = {15},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/CSIS_2018_15_1_a5/}
}
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Beumjin Cho; Sangho Lee; Meng Xu; Sangwoo Ji; Taesoo Kim; Jong Kim. Prevention of Cross-update Privacy Leaks on Android. Computer Science and Information Systems, Tome 15 (2018) no. 1. http://geodesic.mathdoc.fr/item/CSIS_2018_15_1_a5/