808 lines
26 KiB
Java
808 lines
26 KiB
Java
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package org.owasp.webgoat.lessons;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.OutputStreamWriter;
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import java.net.DatagramPacket;
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import java.net.DatagramSocket;
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import java.net.InetAddress;
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import java.net.Socket;
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import java.net.URLDecoder;
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import java.sql.Connection;
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import java.sql.ResultSet;
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import java.sql.Statement;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.StringTokenizer;
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import java.util.Vector;
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import javax.servlet.http.Cookie;
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import org.apache.ecs.Element;
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import org.apache.ecs.ElementContainer;
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import org.apache.ecs.StringElement;
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import org.apache.ecs.html.B;
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import org.apache.ecs.html.BR;
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import org.apache.ecs.html.Center;
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import org.apache.ecs.html.H1;
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import org.apache.ecs.html.HR;
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import org.apache.ecs.html.IFrame;
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import org.apache.ecs.html.Input;
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import org.apache.ecs.html.P;
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import org.apache.ecs.html.TD;
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import org.apache.ecs.html.TH;
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import org.apache.ecs.html.TR;
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import org.apache.ecs.html.Table;
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import org.owasp.webgoat.session.DatabaseUtilities;
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import org.owasp.webgoat.session.ECSFactory;
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import org.owasp.webgoat.session.WebSession;
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import org.owasp.webgoat.util.Exec;
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import org.owasp.webgoat.util.ExecResults;
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/***************************************************************************************************
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*
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*
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* This file is part of WebGoat, an Open Web Application Security Project utility. For details,
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* please see http://www.owasp.org/
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*
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* Copyright (c) 2002 - 20014 Bruce Mayhew
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
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* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with this program; if
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* not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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* Getting Source ==============
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*
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* Source for this application is maintained at https://github.com/WebGoat/WebGoat, a repository for free software
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* projects.
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*
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* For details, please see http://webgoat.github.io
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*
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* @author Bruce Mayhew <a href="http://code.google.com/p/webgoat">WebGoat</a>
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* @created October 28, 2003
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*/
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public class Challenge2Screen extends SequentialLessonAdapter
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{
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private static final String USER_COOKIE = "user";
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private static final String JSP = ".jsp";
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private static final String WEBGOAT_CHALLENGE = "webgoat_challenge";
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private static final String WEBGOAT_CHALLENGE_JSP = WEBGOAT_CHALLENGE + JSP;
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private static final String PROCEED_TO_NEXT_STAGE = "Proceed to the next stage...";
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/**
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* Description of the Field
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*/
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protected final static String CREDIT = "Credit";
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/**
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* Description of the Field
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*/
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protected final static String PROTOCOL = "File";
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/**
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* Description of the Field
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*/
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protected final static String MESSAGE = "Message";
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/**
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* Description of the Field
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*/
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protected final static String PARAM = "p";
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/**
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* Description of the Field
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*/
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protected final static String PASSWORD = "Password";
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/**
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* Description of the Field
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*/
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protected final static String USER = "user";
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/**
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* Description of the Field
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*/
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protected final static String USERNAME = "Username";
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private String pass = "goodbye";
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private String user = "youaretheweakestlink";
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/**
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* Description of the Method
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*
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* @param s
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* Description of the Parameter
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* @return Description of the Return Value
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*/
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protected Element createContent(WebSession s)
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{
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return super.createStagedContent(s);
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}
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/**
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* Determine the username and password
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*
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* @param s
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* Description of the Parameter
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* @return Description of the Return Value
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* @exception Exception
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* Description of the Exception
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*/
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protected Element doStage1(WebSession s) throws Exception
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{
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setStage(s, 1);
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String username = s.getParser().getRawParameter(USERNAME, "");
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String password = s.getParser().getRawParameter(PASSWORD, "");
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if (username.equals(user) && password.equals(pass))
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{
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s.setMessage("Welcome to stage 2 -- get credit card numbers!");
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setStage(s, 2);
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return (doStage2(s));
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}
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s.setMessage("Invalid login");
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ElementContainer ec = new ElementContainer();
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ec.addElement(makeLogin(s));
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// <START_OMIT_SOURCE>
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// these are red herrings for the first stage
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Input input = new Input(Input.HIDDEN, USER, user);
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ec.addElement(input);
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Cookie newCookie = new Cookie(USER_COOKIE, Encoding.base64Encode(user));
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s.getResponse().addCookie(newCookie);
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phoneHome(s, "User: " + username + " --> " + "Pass: " + password);
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// <END_OMIT_SOURCE>
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return (ec);
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}
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// get creditcards from database
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/**
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* Description of the Method
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*
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* @param s
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* Description of the Parameter
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* @return Description of the Return Value
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* @exception Exception
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* Description of the Exception
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*/
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protected Element doStage2(WebSession s) throws Exception
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{
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// <START_OMIT_SOURCE>
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Cookie newCookie = new Cookie(USER_COOKIE, Encoding.base64Encode(user));
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s.getResponse().addCookie(newCookie);
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ElementContainer ec = new ElementContainer();
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if (s.getParser().getStringParameter(Input.SUBMIT, "").equals(PROCEED_TO_NEXT_STAGE + "(3)"))
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{
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s.setMessage("Welcome to stage 3 -- deface the site");
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setStage(s, 3);
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// Reset the defaced webpage so the lesson can start over
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resetWebPage(s);
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return doStage3(s);
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}
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Connection connection = DatabaseUtilities.getConnection(s);
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Statement statement3 = connection
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.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);
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// pull the USER_COOKIE from the cookies
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String cookie = getCookie(s);
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if (null == cookie) {
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cookie = "";
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} else {
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cookie = URLDecoder.decode(cookie,"utf-8");
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}
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String user = Encoding.base64Decode(cookie);
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String query = "SELECT * FROM user_data WHERE last_name = '" + user + "'";
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Vector<String> v = new Vector<String>();
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try
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{
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ResultSet results = statement3.executeQuery(query);
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while (results.next())
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{
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String type = results.getString("cc_type");
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String num = results.getString("cc_number");
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v.addElement(type + "-" + num);
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}
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if (v.size() != 13)
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{
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s.setMessage("Try to get all the credit card numbers");
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}
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ec.addElement(buildCart(s));
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Table t = new Table().setCellSpacing(0).setCellPadding(2).setBorder(0).setWidth("90%").setAlign("center");
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ec.addElement(new BR());
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TR tr = new TR();
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tr.addElement(new TD().addElement("Please select credit card for this purchase: "));
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Element p = ECSFactory.makePulldown(CREDIT, v);
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tr.addElement(new TD().addElement(p).setAlign("right"));
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t.addElement(tr);
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tr = new TR();
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Element b = ECSFactory.makeButton("Buy Now!");
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tr.addElement(new TD().addElement(b));
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t.addElement(tr);
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ec.addElement(t);
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ec.addElement(new BR());
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Input input = new Input(Input.HIDDEN, USER, user);
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ec.addElement(input);
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// STAGE 3 BUTTON
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if (v.size() == 13)
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{
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s.setMessage("Congratulations! You stole all the credit cards, proceed to stage 3!");
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s.setMessage(" - Look in the credit card pull down to see the numbers.");
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ec.addElement(new BR());
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// TR inf = new TR();
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Center center = new Center();
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Element proceed = ECSFactory.makeButton(PROCEED_TO_NEXT_STAGE + "(3)");
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center.addElement(proceed);
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// inf.addElement(new TD().addElement(proceed).setAlign("center"));
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ec.addElement(center);
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}
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} catch (Exception e)
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{
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s.setMessage("An error occurred in the woods");
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}
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return (ec);
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// <END_OMIT_SOURCE>
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}
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/**
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* Description of the Method
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*
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* @param s
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* Description of the Parameter
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* @return Description of the Return Value
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* @exception Exception
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* Description of the Exception
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*/
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/*
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* (non-Javadoc)
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* @see lessons.LessonAdapter#doStage3(session.WebSession)
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*/
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protected Element doStage3(WebSession s) throws Exception
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{
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// <START_OMIT_SOURCE>
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ElementContainer ec = new ElementContainer();
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if (s.getParser().getStringParameter(Input.SUBMIT, "").equals(PROCEED_TO_NEXT_STAGE + "(4)"))
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{
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setStage(s, 4);
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// Reset the defaced webpage so the lesson can start over
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resetWebPage(s);
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return doStage4(s);
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}
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// execute the possible attack first to determine if site is defaced.
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ElementContainer netstatResults = getNetstatResults(s);
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if (isDefaced(s))
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{
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ec.addElement(new HR());
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s.setMessage("CONGRATULATIONS - You have defaced the site!");
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Table t = new Table().setCellSpacing(0).setCellPadding(2).setWidth("90%").setAlign("center");
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if (s.isColor())
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{
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t.setBorder(1);
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}
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TR tr = new TR();
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tr.addElement(new TD().setAlign("center").addElement(ECSFactory.makeButton(PROCEED_TO_NEXT_STAGE + "(4)")));
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t.addElement(tr);
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tr = new TR();
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tr.addElement(new TD().addElement(showDefaceAttempt(s)));
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t.addElement(tr);
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ec.addElement(t);
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return ec;
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}
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else
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{
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// Setup the screen content
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try
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{
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ec.addElement(new H1("Current Network Status:"));
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ec.addElement(netstatResults);
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Table t = new Table().setCellSpacing(0).setCellPadding(2).setWidth("90%").setAlign("center");
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if (s.isColor())
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{
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t.setBorder(1);
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}
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String[] list = { "tcp", "tcpv6", "ip", "ipv6", "udp", "udpv6" };
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TR tr = new TR();
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tr.addElement(new TD().addElement(ECSFactory.makeButton("View Network")));
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tr.addElement(new TD().setWidth("35%").addElement(ECSFactory.makePulldown(PROTOCOL, list, "", 5)));
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t.addElement(tr);
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ec.addElement(t);
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} catch (Exception e)
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{
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ec.addElement(new P().addElement("Error in obtaining network status"));
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}
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ec.addElement(new HR());
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Table t = new Table().setCellSpacing(0).setCellPadding(2).setWidth("90%").setAlign("center");
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if (s.isColor())
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{
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t.setBorder(1);
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}
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TR tr = new TR();
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tr.addElement(new TD().addElement(showDefaceAttempt(s)));
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t.addElement(tr);
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ec.addElement(t);
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}
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return (ec);
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// <END_OMIT_SOURCE>
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}
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private boolean isDefaced(WebSession s)
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{
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// <START_OMIT_SOURCE>
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boolean defaced = false;
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try
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{
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// get current text and compare to the new text
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String origpath = s.getContext().getRealPath(WEBGOAT_CHALLENGE + "_" + s.getUserName() + JSP);
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String masterFilePath = s.getContext().getRealPath(WEBGOAT_CHALLENGE_JSP);
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String defacedText = getFileText(new BufferedReader(new FileReader(origpath)), false);
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String origText = getFileText(new BufferedReader(new FileReader(masterFilePath)), false);
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defaced = (!origText.equals(defacedText));
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} catch (Exception e)
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{
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e.printStackTrace();
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}
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return defaced;
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// <END_OMIT_SOURCE>
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}
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private Element showDefaceAttempt(WebSession s) throws Exception
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{
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ElementContainer ec = new ElementContainer();
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// show webgoat.jsp text
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ec.addElement(new H1().addElement("Original Website Text"));
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ec.addElement(new IFrame().setHeight("500").setWidth("100%").setSrc(s.getRequest().getContextPath() + "/" + WEBGOAT_CHALLENGE_JSP));
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ec.addElement(new HR());
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ec.addElement(new H1().addElement("Defaced Website Text"));
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ec.addElement(new IFrame().setHeight("500").setWidth("100%").setSrc(
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s.getRequest().getContextPath() + "/" + WEBGOAT_CHALLENGE + "_"
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+ s.getUserName() + JSP));
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ec.addElement(new HR());
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return ec;
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}
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private void resetWebPage(WebSession s)
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{
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try
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{
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// get current text and compare to the new text
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String defacedpath = s.getContext().getRealPath(WEBGOAT_CHALLENGE + "_" + s.getUserName() + JSP);
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String masterFilePath = s.getContext().getRealPath(WEBGOAT_CHALLENGE_JSP);
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// replace the defaced text with the original
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File usersFile = new File(defacedpath);
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FileWriter fw = new FileWriter(usersFile);
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fw.write(getFileText(new BufferedReader(new FileReader(masterFilePath)), false));
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fw.close();
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// System.out.println("webgoat_guest replaced: " + getFileText( new
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// BufferedReader( new FileReader( defacedpath ) ), false ) );
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} catch (Exception e)
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{
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e.printStackTrace();
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}
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}
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protected Category getDefaultCategory()
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{
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return Category.CHALLENGE;
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}
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/**
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* Description of the Method
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*
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* @param s
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* Description of the Parameter
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* @return Description of the Return Value
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* @exception Exception
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* Description of the Exception
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*/
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protected Element doStage4(WebSession s) throws Exception
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{
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makeSuccess(s);
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ElementContainer ec = new ElementContainer();
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ec.addElement(new H1().addElement("Thanks for coming!"));
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ec.addElement(new BR());
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ec.addElement(new H1()
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.addElement("Please remember that you will be caught and fired if you use these techniques for evil."));
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return (ec);
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}
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/**
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* Description of the Method
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*
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* @param s
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* Description of the Parameter
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* @return Description of the Return Value
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* @exception Exception
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* Description of the Exception
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*/
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protected Element doStage5(WebSession s) throws Exception
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{
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// <START_OMIT_SOURCE>
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ElementContainer ec = new ElementContainer();
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return (ec);
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// <END_OMIT_SOURCE>
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}
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/**
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* Description of the Method
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*
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* @param s
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* Description of the Parameter
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* @return Description of the Return Value
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* @exception Exception
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* Description of the Exception
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*/
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protected Element doStage6(WebSession s) throws Exception
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{
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return (new StringElement("not yet"));
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}
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/**
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* Gets the hints attribute of the ChallengeScreen object
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*
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* @return The hints value
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*/
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protected List<String> getHints(WebSession s)
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{
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// <START_OMIT_SOURCE>
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List<String> hints = new ArrayList<String>();
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hints.add("You need to gain access to the Java source code for this lesson.");
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hints.add("Seriously, no more hints -- it's a CHALLENGE!");
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hints.add("Come on -- give it a rest!");
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if (getStage(s) != 1)
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;
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{
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hints.add("Persistance is always rewarded");
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}
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return hints;
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// <END_OMIT_SOURCE>
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}
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protected Element makeLogin(WebSession s)
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{
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ElementContainer ec = new ElementContainer();
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ec.addElement(new H1().addElement("Sign In "));
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Table t = new Table().setCellSpacing(0).setCellPadding(2).setBorder(0).setWidth("90%").setAlign("center");
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if (s.isColor())
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{
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t.setBorder(1);
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}
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TR tr = new TR();
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tr.addElement(new TH()
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.addElement("Please sign in to your account. See the OWASP admin if you do not have an account.")
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.setColSpan(2).setAlign("left"));
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t.addElement(tr);
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tr = new TR();
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tr.addElement(new TD().addElement("*Required Fields").setWidth("30%"));
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t.addElement(tr);
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tr = new TR();
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tr.addElement(new TD().addElement(" ").setColSpan(2));
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t.addElement(tr);
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TR row1 = new TR();
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TR row2 = new TR();
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row1.addElement(new TD(new B(new StringElement("*User Name: "))));
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row2.addElement(new TD(new B(new StringElement("*Password: "))));
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Input input1 = new Input(Input.TEXT, USERNAME, "");
|
|
Input input2 = new Input(Input.PASSWORD, PASSWORD, "");
|
|
row1.addElement(new TD(input1));
|
|
row2.addElement(new TD(input2));
|
|
t.addElement(row1);
|
|
t.addElement(row2);
|
|
|
|
Element b = ECSFactory.makeButton("Login");
|
|
t.addElement(new TR(new TD(b)));
|
|
ec.addElement(t);
|
|
|
|
return (ec);
|
|
}
|
|
|
|
/**
|
|
* Gets the instructions attribute of the ChallengeScreen object
|
|
*
|
|
* @return The instructions value
|
|
*/
|
|
public String getInstructions(WebSession s)
|
|
{
|
|
String instructions = "Your mission is to break the authentication scheme, "
|
|
+ "steal all the credit cards from the database, and then deface the website. "
|
|
+ "You will have to use many of the techniques you have learned in the other lessons. "
|
|
+ "The main webpage to deface for this site is 'webgoat_challenge_" + s.getUserName() + ".jsp'";
|
|
|
|
return (instructions);
|
|
}
|
|
|
|
/**
|
|
* Gets the ranking attribute of the ChallengeScreen object
|
|
*
|
|
* @return The ranking value
|
|
*/
|
|
protected Integer getDefaultRanking()
|
|
{
|
|
return new Integer(130);
|
|
}
|
|
|
|
/**
|
|
* This is a deliberate 'backdoor' that would send user name and password back to the remote
|
|
* host. Obviously, sending the password back to the remote host isn't that useful but... you
|
|
* get the idea
|
|
*
|
|
* @param s
|
|
* Description of the Parameter
|
|
* @param message
|
|
* Description of the Parameter
|
|
*/
|
|
protected void phoneHome(WebSession s, String message)
|
|
{
|
|
try
|
|
{
|
|
InetAddress addr = InetAddress.getByName(s.getRequest().getRemoteHost());
|
|
DatagramPacket dp = new DatagramPacket(message.getBytes(), message.length());
|
|
DatagramSocket sock = new DatagramSocket();
|
|
sock.connect(addr, 1234);
|
|
sock.send(dp);
|
|
sock.close();
|
|
} catch (Exception e)
|
|
{
|
|
System.out.println("Couldn't phone home");
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gets the title attribute of the ChallengeScreen object
|
|
*
|
|
* @return The title value
|
|
*/
|
|
public String getTitle()
|
|
{
|
|
return ("The CHALLENGE!");
|
|
}
|
|
|
|
/**
|
|
* Description of the Method
|
|
*
|
|
* @param text
|
|
* Description of the Parameter
|
|
* @return Description of the Return Value
|
|
*/
|
|
protected ElementContainer getNetstatResults(WebSession s)
|
|
{
|
|
// <START_OMIT_SOURCE>
|
|
|
|
ElementContainer ec = new ElementContainer();
|
|
|
|
Table t = new Table().setCellSpacing(0).setCellPadding(2).setBorder(1).setWidth("80%").setAlign("center");
|
|
|
|
if (s.isColor())
|
|
{
|
|
t.setBorder(1);
|
|
}
|
|
|
|
String[] colWidths = new String[] { "55", "110", "260", "70", "50" };
|
|
TR tr = new TR();
|
|
tr.addElement(new TH().addElement("Protocol").setWidth(colWidths[0]));
|
|
tr.addElement(new TH().addElement("Local Address").setWidth(colWidths[1]));
|
|
tr.addElement(new TH().addElement("Foreign Address").setWidth(colWidths[2]));
|
|
tr.addElement(new TH().addElement("State").setWidth(colWidths[3]));
|
|
tr.addElement(new TH().addElement("Offload State").setWidth(colWidths[4]));
|
|
t.addElement(tr);
|
|
|
|
String protocol = s.getParser().getRawParameter(PROTOCOL, "tcp");
|
|
|
|
String osName = System.getProperty("os.name");
|
|
ExecResults er = null;
|
|
if (osName.indexOf("Windows") != -1)
|
|
{
|
|
String cmd = "cmd.exe /c netstat -ant -p " + protocol;
|
|
er = Exec.execSimple(cmd);
|
|
}
|
|
else
|
|
{
|
|
String[] cmd = { "/bin/sh", "-c", "netstat -ant -p " + protocol };
|
|
er = Exec.execSimple(cmd);
|
|
}
|
|
|
|
String results = er.getOutput();
|
|
StringTokenizer lines = new StringTokenizer(results, "\n");
|
|
String line = lines.nextToken();
|
|
// System.out.println(line);
|
|
int start = 0;
|
|
while (start == 0 && lines.hasMoreTokens())
|
|
{
|
|
if ((line.indexOf("Proto") != -1))
|
|
{
|
|
start++;
|
|
}
|
|
else
|
|
{
|
|
line = lines.nextToken();
|
|
}
|
|
}
|
|
while (start > 0 && lines.hasMoreTokens())
|
|
{
|
|
// in order to avoid a ill-rendered screen when the user performs
|
|
// command injection, we will wrap the screen at 4 columns
|
|
int columnCount = 0;
|
|
tr = new TR();
|
|
TD td;
|
|
StringTokenizer tokens = new StringTokenizer(lines.nextToken(), "\t ");
|
|
while (tokens.hasMoreTokens() && columnCount < 5)
|
|
{
|
|
td = new TD().setWidth(colWidths[columnCount++]);
|
|
tr.addElement(td.addElement(tokens.nextToken()));
|
|
}
|
|
t.addElement(tr);
|
|
}
|
|
// parse the results
|
|
ec.addElement(t);
|
|
return (ec);
|
|
// <END_OMIT_SOURCE>
|
|
|
|
}
|
|
|
|
/**
|
|
* Description of the Method
|
|
*
|
|
* @param s
|
|
* Description of the Parameter
|
|
* @return Description of the Return Value
|
|
*/
|
|
protected Element makeClues(WebSession s)
|
|
{
|
|
return new StringElement("Clues not Available :)");
|
|
}
|
|
|
|
protected Element makeHints(WebSession s)
|
|
{
|
|
return new StringElement("Hint: Find the hints");
|
|
}
|
|
|
|
/**
|
|
* Description of the Method
|
|
*
|
|
* @param s
|
|
* Description of the Parameter
|
|
* @param message
|
|
* Description of the Parameter
|
|
*/
|
|
protected void sendMessage(Socket s, String message)
|
|
{
|
|
try
|
|
{
|
|
OutputStreamWriter osw = new OutputStreamWriter(s.getOutputStream());
|
|
osw.write(message);
|
|
} catch (Exception e)
|
|
{
|
|
// System.out.println("Couldn't write " + message + " to " + s);
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
protected Element buildCart(WebSession s)
|
|
{
|
|
ElementContainer ec = new ElementContainer();
|
|
|
|
ec.addElement(new HR().setWidth("90%"));
|
|
ec.addElement(new Center().addElement(new H1().addElement("Shopping Cart ")));
|
|
Table t = new Table().setCellSpacing(0).setCellPadding(2).setBorder(1).setWidth("90%").setAlign("center");
|
|
|
|
if (s.isColor())
|
|
{
|
|
t.setBorder(1);
|
|
}
|
|
|
|
TR tr = new TR();
|
|
tr.addElement(new TH().addElement("Shopping Cart Items -- To Buy Now").setWidth("80%"));
|
|
tr.addElement(new TH().addElement("Price:").setWidth("10%"));
|
|
tr.addElement(new TH().addElement("Quantity:").setWidth("3%"));
|
|
tr.addElement(new TH().addElement("Total").setWidth("7%"));
|
|
t.addElement(tr);
|
|
|
|
tr = new TR();
|
|
tr.addElement(new TD().addElement("Sympathy Bouquet"));
|
|
tr.addElement(new TD().addElement("59.99").setAlign("right"));
|
|
tr.addElement(new TD().addElement(" 1 ").setAlign("right"));
|
|
tr.addElement(new TD().addElement("59.99"));
|
|
t.addElement(tr);
|
|
|
|
ec.addElement(t);
|
|
|
|
t = new Table().setCellSpacing(0).setCellPadding(2).setBorder(0).setWidth("90%").setAlign("center");
|
|
|
|
if (s.isColor())
|
|
{
|
|
t.setBorder(1);
|
|
}
|
|
|
|
ec.addElement(new BR());
|
|
tr = new TR();
|
|
tr.addElement(new TD().addElement("The total charged to your credit card:"));
|
|
tr.addElement(new TD().addElement("59.99"));
|
|
t.addElement(tr);
|
|
|
|
ec.addElement(t);
|
|
|
|
return (ec);
|
|
}
|
|
|
|
public boolean canHaveClues()
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Gets the cookie attribute of the CookieScreen object
|
|
*
|
|
* @param s
|
|
* Description of the Parameter
|
|
* @return The cookie value
|
|
*/
|
|
protected String getCookie(WebSession s)
|
|
{
|
|
Cookie[] cookies = s.getRequest().getCookies();
|
|
|
|
for (int i = 0; i < cookies.length; i++)
|
|
{
|
|
if (cookies[i].getName().equalsIgnoreCase(USER_COOKIE)) { return (cookies[i].getValue()); }
|
|
}
|
|
|
|
return (null);
|
|
}
|
|
}
|