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Hey Google, Activate Spyware! – When Google Assistant Uses a Vulnerability as a Feature

Talkat Black Hat Asia 2020 · 2020-09-29..10-02· [security, android]
github:ErezYalon
slides:none on file

Research finds Android camera intents that let any app without specific camera permission trigger capture and recording by exploiting no permissions exported activities in Google Camera, affecting potentially hundreds of millions of devices. A proof‑of‑concept rogue app called spike cell uses an implicit intent to start video, switch to front camera, and take a three‑second timer photo, mutes the shutter by repeatedly lowering volume, leverages the proximity sensor to record calls in pocket or at the face, then harvests EXIF for geotag tracking. Google and Samsung push a patch and a CVE.

AI-written summary · about

  1. 0:00Introduction
  2. 1:00Android Terminology
  3. 1:40Hey Google Take a Selfie
  4. 2:33Intents
  5. 3:55Permissions
  6. 5:10Summary
  7. 5:50Analyzing exported activities
  8. 7:22Not looking for permission checks
  9. 8:57Creating a rogue application
  10. 10:25Persistence
  11. 11:58Application
  12. 14:10Hacking the Phone
  13. 15:33The Screen
  14. 17:24Back to the List
  15. 17:40Location Metadata
  16. 19:13Rogue Application
  17. 20:10Proximity Sensor Activation
  18. 21:49What Hackers Really Want
  19. 22:07Disclosure Timeline
  20. 23:44Other Android Vendors
  21. 25:37Google Response
  22. 27:05Conclusion
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