In February 2022, Microsoft patched the vulnerability I used in TianfuCup 2021 for escaping Adobe Reader sandbox, assigned CVE-2022-22715. The vulnerability existed in Named Pipe File System nearly 10 years since the AppContainer was born. We called it "Windows Dirty Pipe". In this article, I will share the root cause and exploitation of Windows Dirty Pipe. So let's start our journey.

In February 2022, Microsoft patched the vulnerability I used in TianfuCup 2021 for escaping Adobe Reader sandbox, assigned CVE-2022-22715. The vulnerability existed in Named Pipe File System nearly 10 years since the AppContainer was born. We called it "Windows Dirty Pipe". In this article, I will share the root cause and exploitation of Windows Dirty Pipe. So let's start our journey.