CVE-2024-55950: Tabby has a TCC Bypass via Unnecessary Permissive Entitlements in Tabby
Tabby (formerly Terminus) is a highly configurable terminal emulator. Prior to 1.0.216, Tabby terminal emulator contains overly permissive entitlements that are unnecessary for its core functionality and plugin system, creating potential security vulnerabilities. The application currently holds powerful permissions including camera, microphone access, and the ability to access personal folders (Downloads, Documents, etc.) through Apple Events, while also maintaining dangerous entitlements that enable code injection. The concerning entitlements are com.apple.security.cs.allow-dyld-environment-variables and com.apple.security.cs.disable-library-validation. Since Tabby's plugins and themes are NodeJS-based without native libraries or frameworks, and no environment variables are used in the codebase, it is recommended to review and remove at least one of the entitlements (com.apple.security.cs.disable-library-validation or com.apple.security.cs.allow-dyld-environment-variables) to prevent DYLDINSERTLIBRARIES injection while maintaining full application functionality. This vulnerability is fixed in 1.0.216.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2024-55950?
CVE-2024-55950 is categorized as a medium severity vulnerability due to its potential impact on security through overly permissive entitlements.
How do I fix CVE-2024-55950?
To fix CVE-2024-55950, update Tabby to version 1.0.216 or later, which addresses the overly permissive entitlements.
What software is affected by CVE-2024-55950?
CVE-2024-55950 affects Tabby terminal emulator versions prior to 1.0.216.
What is the main issue caused by CVE-2024-55950?
The main issue caused by CVE-2024-55950 is the presence of unnecessary and overly permissive entitlements that could lead to security vulnerabilities.
Is there a known exploit for CVE-2024-55950?
As of now, there are no publicly known exploits specifically targeting CVE-2024-55950.