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| Content Provider | ACM Digital Library |
|---|---|
| Author | Tian, Guanyu Wang, Zhi Mitchell, Michael |
| Abstract | Android has become the leading smartphone platform with hundreds of devices from various manufacturers available on the market today. All these phones closely resemble each other with similar hardware and software features. Manufacturers must therefore customize the official Android system to differentiate their devices. Unfortunately, such heavily customization by third-party manufacturers often leads to serious vulnerabilities that do not exist in the official Android system. In this paper, we propose a comparative approach to systematically audit software in third-party phones by comparing them side-by-side to the official system. Specifically, we first retrieve pre-loaded apps and libraries from the phone and build a matching base system from the Android open source project repository. We then compare corresponding apps and libraries for potential vulnerabilities. To facilitate this process, we have designed and implemented DexDiff, a system that can pinpoint fine structural differences between two Android binaries and also present the changes in their surrounding contexts. Our experiments show that DexDiff is efficient and scalable. For example, it spends less than two and half minutes to process two 16.5MB (in total) files. DexDiff is also able to reveal a new vulnerability and details of the invasive CIQ mobile intelligence software. |
| Starting Page | 175 |
| Ending Page | 186 |
| Page Count | 12 |
| File Format | |
| ISBN | 9781450322782 |
| DOI | 10.1145/2557547.2557557 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2014-03-03 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Security audit Dexdiff Static analysis Bindiff Android |
| Content Type | Text |
| Resource Type | Article |
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