Postman
MediumWeb Security
Overview
I've built this amazing translator service with a comprehensive permission system! It's a perfect example of secure web development - VIPs get special features, and guests can't access what they shouldn't. My implementation uses modern security practices and reliable libraries. I'm certain there's no way for unauthorized users to access restricted functionality. Care to test my confidence? Login with guest:guest
Lab Details
Prerequisites & Requirements
- Basic understanding of Python and Flask
- Knowledge of web application security concepts
- Familiarity with JWT tokens
- Understanding of serialization/deserialization vulnerabilities
- Python environment with necessary libraries
What will you learn?
- How insecure deserialization vulnerabilities work in Python using the dill library
- JWT token structure and security weaknesses
- Secret key brute forcing techniques
- Authentication bypass methods
- Chaining multiple vulnerabilities together to achieve remote code execution
- Creating Python exploits for deserialization vulnerabilities
Tools
- Python 3.x
- Burp Suite (Community or Professional)
- JWT_Tool (https://github.com/ticarpi/jwt_tool)
- Burp Suite JWT extension "JSON Web Tokens"
- Python libraries: dill, base64, jwt, requests
Job Positions
Bug Bounty Hunter
Tags
Insecure DeserializationRceJwtBroken Access ControlPython