~/talk

ExplosION: The Hidden Mines in the Android ION Driver

Talkat Black Hat Asia 2022 · 2022-05-10..05-13· [security]
name:Le Wu
links:none on file
name:Xuen Li
links:none on file
name:Tim Xia
links:none on file
slides:none on file

Research exposes over 40 vulnerabilities in the Android ION driver (branded ExplosION) that stem from ION design and vendor changes: upstream missing patches, vendor modifications and custom heaps, and unsafe buffer-sharing that yields double‑fetch and use‑after‑free conditions. One flaw produces a working privilege escalation from any untrusted app to root, bypassing KASLR and disabling SELinux; millions of devices remain affected and several CVEs are documented, with exploits and mitigation suggestions included.

AI-written summary · about

  1. 0:00Introduction to speaker
  2. 1:20Understanding Ion
  3. 1:53Why research Ion
  4. 3:59Ion usage patterns
  5. 5:34Research methodology
  6. 10:35Characteristics overview
  7. 12:55Core driver vulnerabilities
  8. 17:24Vendor-specific bugs
  9. 19:39Customization risks
  10. 21:26Modification vulnerabilities
  11. 25:31Buffer sharing flaws
  12. 27:45Exploitation outcomes
  13. 28:27Reflections and suggestions
  14. 31:57Future work
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