It's a scalable competition platform for attack-defense CTF).
It's written in Perl with Mojolicious framework.
cs-manager: a component that is responsible for the beginning and ending of the game, for managing breaks, for generating rounds. After the start of the round it puts tasks in the queue for launching checkers and also puts the task in the queue for calculating the scoreboard for the past rounds.cs-watcher: an optional component which periodically (several times per round) checks the a of the TCP port for each service and team and skips launching the checkers if the port is not a.postgres: the database which used to store all the data required for the checksystem. It's also used as a backend for the Minion job queue.cs-worker: the minion workers which runs the checkers for teams and services.cs-web: the hypnotoad which ser's web components: scoreboars, API, flags./board: a built-in scoreboard with simple html table with teams, services and scores./admin: an admin page for the game which allows to view checker's logs./admin/info: an admin page with useful game statistics./admin/minion: an admin page with jobs statistics./ctftime/scoreboard.json: a scoreboard in CTFtime format.Checker is an executable file that get input from the checksystem via args and STDIN and return output via exit code and STDOUT/STDERR.
Checksystem runs checkers with that format: /path/to/checker mode host id flag
#### INFO
Cheker must return 101 exit code and print to STDOUT lines with key: value format. Supported keys:
public_flag_description: description of flag in the service for teams.vulns: number of vulns in the service, must be set to 1.##### CHECK
The checker must check the general functionality of the service at host.
##### PUT
The checker must put the flag to the service at host by id. If exit code is 101 then checker should print to STDOUT a JSON object with public_flag_id field wich will be accessible to the teams. You can add any additional fields to the object. This JSON object will be passed to the GET mode in the future.
##### GET
The checker must try to get flag from the service at host by id.
101 OK.102 CORRUPT: The service works fine, but there is no requested flag (only in get mode)103 MUMBLE: The service works incorrect104 DOWN: The service doesn't work.110 CHECKER ERROR: Internal error of checker.开发语言:Perl
Star 数:74
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Checksystem for attack-defense CTF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。
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。
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| 资源标题 | checksystem - Checksystem for attack-defense CTF |
| 所属分类 | CTF思路 |
| 发布作者 | admin |
| 发布时间 | 2026-10-06 00:00:24 |
| 下载权限 | 免费下载 |
| 附件数量 | 2 个下载链接 |
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