Invoke-WebRequest -Uri "https://archive.apache.org/dist/tomcat/tomcat-9/v9.0.90/bin/apache-tomcat-9.0.90-windows-x64.zip" -OutFile "apache-tomcat-9.0.90-windows-x64.zip"
Expand-Archive -Path "apache-tomcat-9.0.90-windows-x64.zip" -DestinationPath "C:\"

Invoke-WebRequest -Uri "https://download.oracle.com/java/25/archive/jdk-25_windows-x64_bin.zip" -OutFile "jdk-25_windows-x64_bin.zip"
Expand-Archive -Path "jdk-25_windows-x64_bin.zip" -DestinationPath "C:\"

mkdir C:\apache-tomcat-9.0.90\webapps\ROOT\WEB-INF\lib\
cd C:\apache-tomcat-9.0.90\webapps\ROOT\WEB-INF\lib\
Invoke-WebRequest -Uri "https://repo1.maven.org/maven2/commons-collections/commons-collections/3.2.1/commons-collections-3.2.1.jar" -OutFile "commons-collections-3.2.1.jar"

1. Click on Start
2. Type "edit the system environment variables"
3. Create two new System Variables named 
    - `%JAVA_HOME%` with value `C:\jdk-25.0.1`
    - `%CATALINA_HOME%` with value `C:\apache-tomcat-9.0.90`
4. Edit the System Variable named `Path`, and add the following values:
   - `%JAVA_HOME%\bin`
   - `%CATALINA_HOME%\bin`

C:\apache-tomcat-9.0.90\bin\service.bat install Tomcat9Server
Set-Service -Name "Tomcat9Server" -StartupType Automatic
Start-Service -Name "Tomcat9Server"

<role rolename="manager-gui"/>
<user username="tomcat" password="s3cret" roles="manager-gui"/>
<role rolename="manager-gui"/>
<user username="tomcat" password="s3cret" roles="manager-gui"/>

<?xml version="1.0" encoding="UTF-8"?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!-- The contents of this file will be loaded for each web application -->
<Context>

    <Manager className="org.apache.catalina.session.PersistentManager" maxIdleBackup="1" saveOnRestart="true" processExpiresFrequency="1">
        <Store className="org.apache.catalina.session.FileStore"/>
    </Manager>
</Context>

<servlet>
        <servlet-name>default</servlet-name>
        <servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>
        <init-param>
            <param-name>debug</param-name>
            <param-value>0</param-value>
        </init-param>
        <init-param>
            <param-name>listings</param-name>
            <param-value>false</param-value>
        </init-param>
        <init-param>
          <param-name>readonly</param-name>
          <param-value>false</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

shutdown.bat
startup.bat

New-NetFirewallRule -DisplayName "Tomcat9Server" -Direction Inbound -Protocol TCP -LocalPort 8080 -Action Allow

<Connector port="443" 
           protocol="org.apache.coyote.http11.Http11NioProtocol"
           maxThreads="150" 
           SSLEnabled="true"
           scheme="https" 
           secure="true">
    <SSLHostConfig>
        <Certificate certificateKeystoreFile="C:\tomcat-9.0.90\conf\ssl\cert.pfx"
                     certificateKeystorePassword=""
                     certificateKeystoreType="PKCS12" />
    </SSLHostConfig>
</Connector>

New-NetFirewallRule -DisplayName "Tomcat9HTTPSServer" -Direction Inbound -Protocol TCP -LocalPort 443 -Action Allow

git clone <this-repo-url>
cd CVE-2025-24813
pip install requests 

java --version
curl -L -o ysoserial-all.jar https://github.com/frohoff/ysoserial/releases/latest/download/ysoserial-all.jar

python exploit.py -t http://<target IP>:8080/ -c "cmd.exe /c calc.exe"