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deepmind.google·6d ago
AI Engineering
Lobsters·Aug 12·5 min read
Bypassing Android Hardware Attestation from the Analyst's Chair
TL;DR
A method to bypass Android hardware attestation on rooted devices was developed, allowing security analysts to access apps without compromising secure hardware. This approach uses a clean device to relay attestation responses, enabling analysis without triggering security locks.
✦ Why It Matters
Security analysts can now analyze apps on rooted devices without being blocked by hardware attestation.
Key Takeaways
- Understand the Android hardware attestation mechanism.
- Use Frida to instrument and modify app behavior.
- Leverage clean devices for attestation responses.
- Explore the implications of Remote Key Provisioning.
How It Works
The bypass method involves redirecting attestation requests from a rooted device to a clean device that can provide valid attestation responses. By using Frida, analysts can hook into the app's process and splice in a genuine certificate chain, allowing the app to believe it is running on a trusted device.