Golang Code Review #09
Bookmarked!This challenge covers the review of a snippet of code written in Golang.
The Code Review Snippet challenges are designed to help you identify vulnerabilities in small pieces of code. In this lab, you are provided with Go code that includes potential security issues. The primary focus is on the handler package, which deals with HTTP requests and XML parsing. Specifically, the ProcessXML function parses XML input without proper validation, potentially leading to XML External Entity (XXE) attacks. Additionally, the XPath query constructed in ProcessXML is vulnerable to injection attacks, as it directly incorporates user input from URL parameters without sanitization.
The RedirectIndex function redirects users based on URL parameters but does not verify the authenticity of these parameters, making the application susceptible to various attacks. The GetRouter function sets up routes and serves static files, but the main security concerns remain in the XML processing and query formulation. Identifying and mitigating these issues is crucial to ensure the application's security.