Always sanitize and escape user input . Use a whitelist of allowed HTML tags and ensure that data is correctly encoded for the context it is being displayed in (e.g., HTML, JavaScript, or CSS). 2. Client-State Manipulation (Cookie Hacking)
Gruyere allows users to practice several major categories of vulnerabilities defined in resources like the OWASP Top 10. 1. Cross-Site Scripting (XSS)
Object handling Exploit: Attacker crafts a malicious serialized object that executes arbitrary code upon deserialization (e.g., Java, PHP, Python pickle). gruyere learn web application exploits defenses top
It can be run locally or accessed through a browser, making it highly accessible.
CSRF exploits the trust a web application has in a user's browser. blog.google The Exploit: Always sanitize and escape user input
Enforcing strict access control policies on the server side. Top Defenses: How to Secure Your Applications
Discover security bugs by manipulating input fields and URL parameters. White-box hack: Analyze the actual Gruyere source code to understand how bugs are introduced and fixed. Learn Specific Defenses: It can be run locally or accessed through
Read the "Solutions" tab provided by the Gruyere server. It walks you through the code patch line by line. Implement the fix in a local copy of Gruyere. Verify the exploit no longer works.