# Abusing .NET Core CLR Diagnostic Features (+ CVE-2023-33127)

DevFeed: [Abusing .NET Core CLR Diagnostic Features (+ CVE-2023-33127)](<https://devfeed.tech/articles/abusing-net-core-clr-diagnostic-features-cve-2023-33127-20507.md>)

Original publisher: [Read original article](<https://bohops.com/2023/11/27/abusing-net-core-clr-diagnostic-features-cve-2023-33127/>)

Author: bohops

Published: 2023-11-27T12:51:30Z

Content type: article

Language: en

Sources: [Bohops](<https://devfeed.tech/sources/bohops.md>)

Topics: [.NET](<https://devfeed.tech/topics/net.md>), [net core](<https://devfeed.tech/topics/net-core.md>), [.NET Framework](<https://devfeed.tech/topics/net-framework.md>), [Windows](<https://devfeed.tech/topics/windows.md>), [configuration](<https://devfeed.tech/topics/configuration.md>), [Microsoft](<https://devfeed.tech/topics/microsoft.md>), [debugging](<https://devfeed.tech/topics/debugging.md>), [API](<https://devfeed.tech/topics/api.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [configuration](<https://devfeed.tech/tags/configuration.md>), [debugging](<https://devfeed.tech/tags/debugging.md>), [microsoft](<https://devfeed.tech/tags/microsoft.md>), [net](<https://devfeed.tech/tags/net.md>), [net-core](<https://devfeed.tech/tags/net-core.md>), [net-framework](<https://devfeed.tech/tags/net-framework.md>), [uncategorized](<https://devfeed.tech/tags/uncategorized.md>), [windows](<https://devfeed.tech/tags/windows.md>)

## AI overview

This article examines how diagnostic features of the .NET Common Language Runtime can be abused, focusing on open-source .NET on modern Microsoft Windows systems. It discusses runtime configuration knobs, registry and environment-variable settings, configuration files, and the CLR profiling API, with defensive guidance and mitigation information referenced at the end.

## Source excerpt

Introduction Background .NET is an ecosystem of frameworks, runtimes, and languages for building and running a wide range of applications on a variety of platforms and devices. The .NET Framework was initially released in the early 2000s as Microsoft's implementation of the Common Language Infrastructure (CLI) specification. In 2016, Microsoft released .NET Core, the first [...]