CTF Levels

A collection of CTF levels.

Navigation

• CTF Levels
  • Navigation
  • Usage
  • Definitions
    • Frontmatter
    • Description
    • Instructions (optional)
    • Hint
    • Attachments (wherever necessary)
    • Solution (optional)
  • Examples

Usage

These levels are designed for Facebook's CTF Hosting Server.

python main.py -h

usage: main.py [-h] games [games ...]

Generate files for CTF in FBCTF Format

positional arguments:
  games       game folders

optional arguments:
  -h, --help  show this help message and exit

Definitions

Create a new game,

mkdir games
mkdir games/game_name
mkdir games/game_name/levels
cd games/game_name/levels/

Create a new level,

mkdir level_name
touch README.md

Level

A level is a task in the Capture the Flag game.

Define README.md based on the following format

Frontmatter

---
title: Level Title
country: Country
flag : Flag Text (convention : CTF{something})
points: points awarded for capture
bonus: points awarded as max(bonus - decrement * (number of times flag was captured), 0)
decrement: see bonus
penalty: points taken away if hint was requested
tag: something describing the
---

Description

```
Describe the level, giving the participants some clues towards the approach they must follow so as to capture the flag. This is raw text. No markdown allowed.
```

Instructions (optional)

Provide instructions on how to generate the level attachments if necessary.

Hint

```
Provide the participants with a hint. This message is shown once they 'purchase' a hint. This is raw text. No markdown allowed.
```

Attachments (wherever necessary)

- [relative_path_to_file](relative_path_to_file)
- [relative_path_to_directory](relative_path_to_directory)

In the case where the attachment must be a git repo and you wish to track its changes, add it as a submodule of the main repo.

Solution (optional)

Explain the solution.

Examples

Checkout games/ for some levels.