On the Effectiveness of Mutational Grammar Fuzzing
Mutational grammar fuzzing is a fuzzing technique in which the fuzzer uses a predefined grammar that describes the structure of the samples. When a sample ge...
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10 articles
A Deep Dive into the GetProcessHandleFromHwnd API
In my previous blog post I mentioned the GetProcessHandleFromHwnd API. This was an API I didn’t know existed until I found a publicly disclosed UAC bypass us...
Bypassing Administrator Protection by Abusing UI Access
In my last blog post I introduced the new Windows feature, Administrator Protection and how it aimed to create a secure boundary for UAC where one didn’t exi...
Breaking the Sound Barrier, Part II: Exploiting CVE-2024-54529
In the first part of this series, I detailed my journey into macOS security research, which led to the discovery of a type confusion vulnerability (CVE-2024-...
Bypassing Windows Administrator Protection
A headline feature introduced in the latest release of Windows 11, 25H2 is Administrator Protection. The goal of this feature is to replace User Account Cont...
A 0-click exploit chain for the Pixel 9 Part 3: Where do we go from here?
While our previous two blog posts provided technical recommendations for increasing the effort required by attackers to develop 0-click exploit chains, our e...
A 0-click exploit chain for the Pixel 9 Part 2: Cracking the Sandbox with a Big Wave
With the advent of a potential Dolby Unified Decoder RCE exploit, it seemed prudent to see what kind of Linux kernel drivers might be accessible from the res...
A 0-click exploit chain for the Pixel 9 Part 1: Decoding Dolby
Over the past few years, several AI-powered features have been added to mobile phones that allow users to better search and understand their messages. One ef...
Welcome to the new Project Zero Blog
While on Project Zero, we aim for our research to be leading-edge, our blog design was … not so much. We welcome readers to our shiny new blog!
Thinking Outside The Box [dusted off draft from 2017]
Preface Hello from the future! This is a blogpost I originally drafted in early 2017.