https://9to5google.com/2021/05/25/google-releases-fuchsia-os-nest-hub/

We are able to gain kernel code execution from a regular userland process.

Google’s Fuchsia OS — an emerging operating system that the company has quietly been developing — may not be running on any production systems yet and still remain something of a strategic mystery. (What will it be used on? When will it be rolled out, if at all?)

That hasn’t stopped security researchers from Quarks Lab — a French security R&D and software development company — from attacking it. (The OS code base is open source). After all, as they note, it could end up on hundreds of millions of Android and Chrome devices.

Fuschsia OS is based on a tiny custom kernel from Google called Zircon which has some elements written in C++, some in Rust. Device drivers run in what’s called “user mode” or “user land”, meaning they’re not given fully elevated privileges. This means they can be isolated better.

Security and software development company Quarkslab played around with Google’s new Fuchsia operating system, which could one day replace Android on smartphones and Chrome OS on laptops. The researchers “decided to give a quick look at Fuchsia, learn about its inner design, security properties, strengths and weaknesses, and find ways to attack it.”

Fuchsia’s micro kernel is called Zircon. It is written in C++. [...] Contrary to every other major OS, it appears rather difficult to target the Zircon kernel directly. A successful RCE (Remote Code Execution) on the world-facing parts of the system (USB, Bluetooth, network stack, etc) will only give you control over the targeted components, but they run in independent userland processes, not in the kernel. From a component, you then need to escalate privileges to the kernel using the limited number of syscalls you can access with the handles you have. Overall, it seems easier to target other components rather than the kernel, and to focus on components that you can talk to via IPC and that you know have interesting handles.

Playing Around With The Fuchsia Operating System
https://blog.quarkslab.com/playing-around-with-the-fuchsia-operating-system.html

Fuchsia is a new operating system developed by Google, targeting the AArch64 and x86_64 architectures. While little is known about the purpose of this OS and where it will be used, it seems plausible that it aims at replacing Android on smartphones and Chrome OS on laptops.

In the interest of acquiring knowledge on an OS that could possibly run on millions of devices in the future, we decided to give a quick look at Fuchsia, learn about its inner design, security properties, strengths and weaknesses, and find ways to attack it.

Google Fuchsia OS is packed with the Ledger system, that store everything in the cloud storage

Google launches Fuchsia.dev to teach developers about Fuchsia OS [Gallery]
https://9to5google.com/2019/06/28/google-launches-fuchsia-dev/

As was repeatedly made plain to see during this year’s Google I/O, developers are eager to learn more about Google’s Fuchsia OS. Today, those appetites are beginning to be satisfied thanks to the quiet launch of the official Fuchsia OS developer website, Fuchsia.dev.

https://fuchsia.dev/fuchsia-src

9to5Googlen mukaan Androidin avoimeen pohjaversioon Android Open Source Projectiin on lisätty äskettäin uutta koodia, jonka tarkoituksena on tuoda Androidin java-virtuaalikone ART myös Fuchsialle. Käytännössä se tarkoittaa sitä, että nykyiset Android-sovellukset toimisivat myös tulevassa järjestelmässä.

https://9to5google.com/2019/01/02/android-runtime-app-support-fuchsia/?xyz

Our early look at Fuchsia OS last May provided a glimpse into a number of new interface paradigms. Several months later, we now have an updated hands-on with Google’s future operating system that can span various form factors.

This look at the in-development OS eight months later comes courtesy of Ars Technica who managed to get Fuchsia installed on the Pixelbook. The Made by Google Chromebook is only the third officially supported “target device” for Fuchsia development.

Our early look at Fuchsia OS last May provided a glimpse into a number of new interface paradigms. Several months later, we now have an updated hands-on with Google’s future operating system that can span various form factors. This look at the in-development OS eight months later comes courtesy of Ars Technica who managed to get Fuchsia installed on the Pixelbook.

Google’s Fuchsia OS on the Pixelbook: It works! It actually works!
We take a look at what Google’s experimental, secret OS is up to in early 2018.
https://arstechnica.com/gadgets/2018/01/googles-fuchsia-os-on-the-pixelbook-it-works-it-actually-works/

Google currently has two OSes on the market: Android and Chrome OS. The company is never one to leave a successful product alone in the marketplace, though, so it’s also developing a third operating system called “Fuchsia.” When we last checked in on the experimental OS in May 2017, calling it an “OS” was a bit of a stretch. We only got the system UI up and running on top of Android, where it then functioned like an app. The UI offered a neat multi-window system, but mostly it was just a bunch of placeholder graphics. Nothing worked.