Labs / Flask Error
- Challenge
- Released 17 Jul 2025
Flask Error
Start the machine, hack the system, and find the hidden flags to complete this challenge and earn points!
1
Flags
1
Points
Start Lab Environment
~1-2 min setup
AWS dedicated
Private instance
Industry standard
Challenge
Flask Debug Mode - Challenge Description
Challenge Overview
A Flask calculator application is running in debug mode. Your task is to trigger a division by zero error that exposes the debug interface and extract the hidden flag from the application's memory. This challenge demonstrates the dangers of exposing debug mode in production environments.
Learning Objectives
- Understand Flask debug mode risks
- Learn about interactive Python consoles in web apps
- Practice extracting sensitive data from memory
- Recognize real-world web security misconfigurations
Challenge Details
Access the calculator and find a way to trigger a division by zero error that exposes the Flask debug interface. Use the interactive console to extract the flag stored in the application's memory.