https://github.com/randark-jmt/nssctf-round_v7-tetris
A reverse challenge in NSSCTF Round#7
https://github.com/randark-jmt/nssctf-round_v7-tetris
challenge ctf ctf-challenge
Last synced: 4 months ago
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A reverse challenge in NSSCTF Round#7
- Host: GitHub
- URL: https://github.com/randark-jmt/nssctf-round_v7-tetris
- Owner: Randark-JMT
- Created: 2023-01-24T11:34:48.000Z (over 2 years ago)
- Default Branch: master
- Last Pushed: 2023-02-03T07:48:57.000Z (over 2 years ago)
- Last Synced: 2025-03-11T04:54:07.283Z (4 months ago)
- Topics: challenge, ctf, ctf-challenge
- Language: Rust
- Homepage:
- Size: 25.4 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# NSSCTF Round#7 Tetris
套娃？不不不，不是俄罗斯套娃，而是俄罗斯方块
## 题目考点
- 基于`Rust`和`Webassembly`所编写的web小游戏
## 解题流程
[视频讲解 - Bilibili](https://www.bilibili.com/video/BV1Ps4y1x7gw/)
本题有两种解题思路：
1. 通过`Cheat Engine`这类内存修改工具，定位储存游戏分数的变量，直接改分
2. 直接扫描内存中的字符串，即可得到flag
3. 对`wasm`程序中判断游戏胜利的条件进行patch
## 参考资料
- [xuu / wasm-tetris 原项目](https://github.com/xuu/wasm-tetris)
- [rustwasm / wasm-pack 项目技术栈](https://github.com/rustwasm/wasm-pack/)
- [anvie / litcrypt.rs 加密静态字符串的Rust宏](https://github.com/anvie/litcrypt.rs)
## 环境部署
项目已给出`Dockerfile`，直接执行`docker build`即可构建镜像。
本项目支持动态flag(`$FLAG`传入)，部署容器可使用`CTFd`，或参考`./docker/docker-compose.yml`