ctf-tasks - An archive of low-level CTF challenges developed o

项目说明

CTF Challenges

This repository contains an archive of CTF challenges I de in the last few years for CTFs organized by my team – Dragon Sector. They are mostly software exploitation tasks with difficulty levels, for the x86/x64 architectures and Windows/Linux operating systems. Each subdirectory contains basic task information, original description, solution in the form of a short summary or a few slides from the post-CTF presentation, exploit code and optionally links to external solutions.

The challenges are as follows:

| Name | Competition | Category | Platform | Arch. | Difficulty |
|----------------------------------|------------------------------|----------------------------|----------|-------|-------------|
| Nim | Dragon CTF 2021 | Exploitation | Linux | x64 | Medium |
| BitmapManager | Dragon CTF 2020 | Exploitation | Windows | x64 | Hard |
| BabyKernel | Dragon CTF 2019 | Exploitation | Windows | x64 | Medium |
| BadType | Dragon CTF 2019 (Teaser) | Reverse Engineering | Windows | x64 | Medium |
| Pipeline | Dragon CTF 2018 | Exploitation / Programming | Linux | x64 | Easy/medium |
| Production | Dragon CTF 2018 (Teaser) | Exploitation | Linux | x64 | Easy/medium |
| Filesystem | CONFidence CTF 2017 | Exploitation | Linux | x64 | Medium |
| Fastcalc-hardened | CONFidence CTF 2017 | Exploitation | Windows | x86 | Hard |
| Fastcalc | CONFidence CTF 2017 (Teaser) | Exploitation | Windows | x86 | Hard |
| Entree | CONFidence CTF 2016 | Exploitation | Windows | x86 | Medium |
| Antipasto | CONFidence CTF 2016 | Exploitation | Linux | x86 | Easy |
| Bubblegum | CONFidence CTF 2016 (Teaser) | Exploitation | Windows | x86 | Hard |
| Night Sky | CONFidence CTF 2015 | Exploitation | Linux | x64 | Hard |
| Quarantine | CONFidence CTF 2015 (Teaser) | Exploitation | Linux | x64 | Hard |
| Crypto Machine | CONFidence CTF 2014 | Exploitation | Linux | x64 | Medium |
| Memory | CONFidence CTF 2014 | Reverse Engineering | Windows | x86 | Easy |
| Multipurpose Calculation Machine | CONFidence CTF 2014 (Teaser) | Exploitation | Linux | x86 | Medium |

Running the tasks

For exploitation problems, if the program listens on a port by default, leave it running and connect to the port to interact with the task. If it reads and writes to/from stdin and stdout, you should bind it to a TCP port of your choice (e.g. with netcat or socat on Linux, and the enclosed AppJailLauncher.exe tool on Windows), and connect to it to exploit the . The goal is to obtain the contents of the flag.txt (or similar) file in the task's current directory.

For re problems, the goal is to extract the flag from the provided executable file.

About Dragon Sector

!Dragon Sector

Dragon Sector is a Polish security Capture The Flag team. It was created in February 2013 and currently has 17 acti. We frequently participate in both online and offline security Capture The Flag competitions, publish write-ups on CTF tasks, and sometimes e CTFs.

You can find us on CTFTime, our blog and Twitter.

Contact

Questions, comments? Let me know at j00ru..com.

项目信息

开发语言：Python

Star 数：661

技术要点

该项目属于CTF思路方向的开源资源，代码结构清晰，适合安全研究人员学习参考。项目围绕An archive of low-level CTF challenges developed over the years展开，提供了可运行的实现，对理解相关安全机制、工具原理与攻防技术具有较高的研究价值。

从技术实现角度看，此类项目的核心在于对底层原理的深入理解与工程化落地。开发者在研究过程中可以结合官方文档与社区讨论，梳理项目的初始化流程、核心模块职责与数据流转，逐步掌握其中的技术细节与设计思路。

使用与学习建议

1. 下载源码压缩包，解压到本地环境。

2. 根据项目类型准备对应的运行环境与依赖。

3. 按照 README 中的步骤完成配置与部署。

4. 在隔离的测试环境中运行验证，避免影响生产系统。

免责声明

本资源来源于开源社区，仅供安全研究、技术学习与合法授权范围内的攻防演练使用，请勿用于任何非法或侵害他人权益的用途。使用本项目产生的一切后果由使用者自行承担。