June 21, 2024

Feb 24, 2023Ravie LakshmananCellular Safety / Firmware

Security of SoC Processors

Google mentioned it is working with ecosystem companions to harden the safety of firmware that interacts with Android.

Whereas the Android working system runs on what’s referred to as the applying processor (AP), it is simply one of many many processors of a system-on-chip (SoC) that cater to numerous duties like mobile communications and multimedia processing.

“Securing the Android Platform requires going past the confines of the Utility Processor,” the Android group said. “Android’s defense-in-depth technique additionally applies to the firmware operating on bare-metal environments in these microcontrollers, as they’re a crucial a part of the assault floor of a tool.”

The tech big mentioned the purpose is to bolster the safety of software program operating on these secondary processors (i.e., firmware) and make it tougher to take advantage of vulnerabilities over the air to realize distant code execution inside the Wi-Fi SoC or the mobile baseband.

To that finish, Google famous that it is exploring and enabling compiler-based sanitizers and turning on reminiscence security options in firmware as exploit mitigation measures.

Given the useful resource constraints related to bare-metal targets, the thought is to “harden essentially the most uncovered assault floor – whereas minimizing any efficiency/stability affect,” the Mountain View-based firm defined.

One other key space is the usage of memory-safe programming languages like Rust for writing firmware code, persevering with its efforts to increase its adoption throughout the platform.

“Hardening firmware operating on bare-metal to materially improve the extent of safety – throughout extra surfaces in Android – is likely one of the priorities of Android Safety,” Google mentioned.

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