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Hardening cellular basebands in Android
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Posted by Ivan Lozano and Roger Piqueras Jover
Android’s defense-in-depth strategy applies not only to the Android OS running on the Application Processor (AP) but also the firmware that runs on devices. We particularly prioritize hardening the cellular baseband given its unique combination of running in an elevated privilege and parsing untrusted inputs that are remotely delivered into the device.
This post covers how to use two high-value sanitizers which can prevent specific classes of vulnerabilities found within the baseband. …
android application baseband cellular defense devices firmware hardening inputs parsing prioritize privilege processor roger running strategy untrusted