Challenge list
Web-16. Weak JWT Secret in the CHIMERA Research Lab
Clues found after breaching the employee portal point to an isolated research lab system codenamed CHIMERA. It…
Web-17. Path Traversal in FileShare
FileShare lets users list and download files from a shared folder. Check whether the filename parameter passed to the…
Web-18. XXE Attack via a Contact Form
This contact form serializes its input as XML and sends it to the server, which parses it and echoes the result.…
Web-19. CSRF Transfer in a Banking App
This banking app lets a logged-in user transfer money. Check whether CSRF protections exist by seeing if a separate…
Web-20. SSRF via the URL Fetcher
This URL Fetcher service retrieves and displays the content of any URL a user provides. Check whether it can be…
Text Processing Master - sed & awk
/app/data.csv contains CSV data. Perform these operations: 1. Extract only rows where column 2 (price) >= 1000 2.…
Process Hunter - Hidden Process
A process named "secret_service" is running in the background. Find this process and get the following information: 1.…
Log Analysis - Find the Intruder
/app/auth.log contains authentication logs. Detect suspicious activity: - Identify the IP address with 10+ failed…
Compression Maze - Nested Archives
/app/flag.tar.gz is a nested compressed file. Decompress step by step: flag.tar.gz → flag.tar → flag.zip.bz2.gz →…
Regex Master - Log File Analysis
The file /app/access.log contains thousands of access log entries. Extract all entries where the IP address starts…
Environment Variable Master - PATH Hijacking
There is a hidden command "getflag" in /app/secret_bin directory. However, this directory is not in PATH, so you…