This challenge covers the review of a CVE in a Java codebase and its patch

< 1 Hr.


The Code Review Patch challenges are designed to enhance your code analysis skills by presenting you with both vulnerable code and its corresponding patch. Initially, you should try to identify the vulnerability in the code without referring to the patch. This approach helps in sharpening your code review skills and understanding typical coding pitfalls. If you struggle to find the issue or wish to verify your findings, you can then refer to the provided patch (diff file).

In this particular lab, the focus is on the `` file from the `org.lockss.servlet` package. This Java servlet code is responsible for displaying content status and handling various user requests. By examining the code and the diff file, you can uncover how vulnerabilities are patched and gain insights into secure coding practices. This exercise is invaluable for those looking to understand not just how to spot vulnerabilities, but also how to effectively patch them.

The provided diff file (`ghsa-95xx.diff`) reveals a specific change in the `cleanName` method, highlighting the importance of proper string sanitization. By addressing the vulnerability through a patch, this lab underscores the critical aspects of code hygiene and the necessity for vigilant code review processes.

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