Crafts a malicious POST request to pollute the server’s environment.
Issues in how the "shopping cart" or "payment" logic handles quantities or prices. 2. The Critical Flaw: Prototype Pollution
The application uses a vulnerable library (like lodash or merge-deep ) to combine user input into a configuration object. moanshop.7z
Overwriting settings in the rendering engine (like EJS or Pug) to force the server to execute malicious system commands. Summary of the Solution To solve the challenge, a researcher typically: Downloads and extracts the moanshop.7z file.
While the exact details can vary depending on the specific competition (e.g., SECCON, HTB, or private bug bounty simulations), the typical write-up for this challenge focuses on three main stages: Crafts a malicious POST request to pollute the
The .7z file contains the application's backend logic, often written in or Python (Flask/Django) . By analyzing the code, researchers look for:
Leftover API keys or developer credentials. The Critical Flaw: Prototype Pollution The application uses
Identifies a vulnerable merge function in the cart.js or admin.js file.