# Challenges

Misc Computer: This challenge connects with nc or SSH, which needs a terminal. Easy

PyJail 1

You are trapped in a Python sandbox with restricted input. Escape the jail by executing code despite the blacklist.

50 points 5 solves

Pwn Computer: This challenge connects with nc or SSH, which needs a terminal. Hard

Ghost Memory

Memory management is hard. Especially when things are not truly gone.

250 points 2 solves

Pwn Computer: This challenge connects with nc or SSH, which needs a terminal. Easy

Your Input, Your Rules

Your input, your rules. But whose memory is it anyway?

50 points 5 solves

Pwn Computer: This challenge connects with nc or SSH, which needs a terminal. Hard

No Shortcuts

No shortcuts this time. You are on your own.

250 points 2 solves

Pwn Computer: This challenge connects with nc or SSH, which needs a terminal. Hard

Architecture Shift

Same challenge, new architecture. 64 bits change everything.

250 points 2 solves

Pwn Computer: This challenge connects with nc or SSH, which needs a terminal. Hard

Credential Gate

The function is there, but it wants the right credentials to cooperate.

250 points 2 solves

Pwn Computer: This challenge connects with nc or SSH, which needs a terminal. Medium

Forgotten Function

A small buffer and a forgotten function. Connect the dots.

150 points 2 solves

Pwn Computer: This challenge connects with nc or SSH, which needs a terminal. Easy

Tiny Buffer

A tiny buffer with big ambitions. What happens when it overflows?

50 points 6 solves

Web Easy

Pushes

A cookie clicker game tracks your progress. Reaching the target legitimately would take forever. Is there a shortcut?

50 points 12 solves

Web Medium

PHP Sandbox

Upload files to the server with strict extension checks. But the upload is only half the challenge.

150 points 2 solves

Web Medium

PHPFilters 3

Similar to its predecessor, but with a twist — you can view the backend source code. Use it wisely.

150 points 5 solves

Web Easy

PHPFilters 2

A message board processes your input server-side. The frontend filters are just for show.

50 points 9 solves

Web Medium

PHPFilters 1

Execute PHP code despite an extensive blacklist of dangerous functions. Creative bypass required.

150 points 6 solves

Web Medium

Pathfinder 2

The pathfinder returns with a shorter time window. Work faster to enumerate what you need.

150 points 3 solves

Web Medium

Pathfinder

A directory listing tool reveals file sizes and names. Can you find the flag file before time runs out?

150 points 4 solves

OSINT Computer: This challenge connects with nc or SSH, which needs a terminal. Hard

Hidden Service

Somewhere in the dark web, a hidden service awaits discovery.

250 points 0 solves

Forensics Computer: This challenge connects with nc or SSH, which needs a terminal. Hard

FTP Investigation

An FTP server holds secrets that someone tried to hide.

250 points 0 solves

Forensics Computer: This challenge connects with nc or SSH, which needs a terminal. Hard

DNS Traffic

A DNS server is running. What can you learn from it?

250 points 0 solves

Web Medium

Network Checker

A handy network utility that pings hosts for you. What happens when the input is not just an IP address?

150 points 5 solves

Misc Computer: This challenge connects with nc or SSH, which needs a terminal. Medium

Regex

Ten rounds of pattern matching. How sharp are your regex skills?

150 points 3 solves