GitHub Security Lab

The GitHub Security Lab teamed up with Ekoparty once again to create some challenges for its yearly Capture the Flag competition!

This blog post describes two linked vulnerabilities found in Frigate, an AI-powered security camera manager, that could have enabled an attacker to silently gain remote code execution.

Using CVE-2023-43641 as an example, I’ll explain how to develop an exploit for a memory corruption vulnerability on Linux. The exploit has to bypass several mitigations to achieve code execution.

The GitHub Security Lab examined the most popular open source software running on our home labs, with the aim of enhancing its security. Here’s what we found and what you can do to better protect your own smart home.

In this post, I’ll exploit CVE-2023-4069, a type confusion in Chrome that allows remote code execution (RCE) in the renderer sandbox of Chrome by a single visit to a malicious site.

CVE-2023-43641 is a vulnerability in libcue, which can lead to code execution by downloading a file on GNOME.

In this post, I’ll exploit CVE-2023-3420, a type confusion in Chrome that allows remote code execution (RCE) in the renderer sandbox of Chrome by a single visit to a malicious site.

The GitHub Security Lab audits open source projects for security vulnerabilities and helps maintainers fix them. Recently, we passed the milestone of 500 CVEs disclosed. Let’s take a trip down memory lane with a review of some noteworthy CVEs!

In this post, we’ll deep dive into some interesting attacks on mTLS authentication. We’ll have a look at implementation vulnerabilities and how developers can make their mTLS systems vulnerable to user impersonation, privilege escalation, and information leakages.

Researchers from Purdue and NCSU have found a large number of command injection vulnerabilities in the workflows of projects on GitHub. Follow these four tips to keep your GitHub Actions workflows secure.

This blog post describes two security vulnerabilities in Decidim, a digital platform for citizen participation. Both vulnerabilities were addressed by the Decidim team with corresponding update releases for the supported versions in May 2023.

SELinux is the most popular Linux Security Module used to isolate and protect system components from one another. Learn about different access control systems and Linux security as I introduce the foundations of a popular type system.

Introducing a new tool to monitor and control the permissions of the repository token for GitHub Actions.

Learn the basics of CodeQL and how to use it for security research! In this blog, we will teach you how to leverage GitHub’s static analysis tool CodeQL to write custom CodeQL queries.

In this blog, I’ll look at CVE-2022-46395, a variant of CVE-2022-36449 (Project Zero issue 2327), and use it to gain arbitrary kernel code execution and root privileges from the untrusted app domain on an Android phone that uses the Arm Mali GPU. I’ll also explain how root cause analysis of CVE-2022-36449 led to the discovery of CVE-2022-46395.