CVE-2024-x730x
Bookmarked!This challenge covers the review of a snippet of code written in Golang.
The Code Review Patch challenges are designed to enhance your code review and vulnerability identification skills by providing both the vulnerable code and the corresponding patch. In the given example, the vulnerable code is part of a CORS handling package in Golang. You are encouraged to first examine the code to identify any security flaws on your own. If you struggle to find the issue or need to verify your findings, you can then refer to the provided patch file, which highlights the specific changes made to rectify the vulnerability.
This specific lab focuses on a CORS validation error where the original code fails to properly check allowed origins. The patch corrects this by ensuring that origin comparisons are case-insensitive and by properly handling subdomain matches. By completing this challenge, you will gain a deeper understanding of common pitfalls in CORS implementations and how to address them effectively.