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CVE-2024-38355

Description

Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. This issue is fixed by commit `15af22fc22` which has been included in `socket.io@4.6.2` (released in May 2023). The fix was backported in the 2.x branch as well with commit `d30630ba10`. Users are advised to upgrade. Users unable to upgrade may attach a listener for the "error" event to catch these errors.

POC

Reference

- https://www.vicarius.io/vsociety/posts/unhandled-exception-in-socketio-cve-2024-38355

Github

- https://github.com/Y0ursTruly/Y0ursTruly