Advanced Exploitation Techniques - pentestfunctions/Hacking-For-Beginners GitHub Wiki

Advanced Exploitation Techniques

This document delves into advanced exploitation techniques in cybersecurity, using example.com as a theoretical target to demonstrate the identification and exploitation of various vulnerabilities.

Table of Contents

Business Logic Errors

Identifying and Exploiting Flaws in Application Processes

  • Example: Suppose example.com has an e-commerce platform where a discount code can be applied multiple times, reducing the price to zero. Identifying such a flaw and demonstrating the exploit is a case of business logic error exploitation.

API Security

Testing for Insecure Endpoints, Improper Authentication

  • Tools: Tools like Postman or custom scripts can be used for API testing.
  • Example: Check if API endpoints on example.com/api/ are properly authenticated. For instance, accessing example.com/api/userdata without proper tokens should not reveal sensitive information.

OAuth Flaws

Exploiting Misconfigurations in OAuth Implementations

  • Scenario: An OAuth implementation on example.com that improperly validates redirect URIs, allowing an attacker to redirect users to a malicious site after authentication.
  • Exploit: Craft a login URL that redirects to an attacker-controlled site upon successful authentication.

Server-Side Template Injection

Identifying and Exploiting Template Injection Flaws

  • Tools: Manual testing or tools like Burp Suite to manipulate template inputs.
  • Example: A web application on example.com uses a templating engine like Jinja2. Injecting a payload like {{7*7}} or {% for x in range(1,10) %}{{x}}{% endfor %} might execute server-side, indicating a template injection vulnerability.

Note: These techniques are for educational purposes and should be used ethically and legally. Unauthorized exploitation can result in serious legal consequences.