232 lines
7.3 KiB
Java
232 lines
7.3 KiB
Java
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package org.owasp.webgoat.lessons;
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import java.text.DecimalFormat;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.regex.Pattern;
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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.A;
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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.IMG;
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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.ECSFactory;
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import org.owasp.webgoat.session.WebSession;
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import org.owasp.webgoat.util.WebGoatI18N;
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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 - 2007 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 code.google.com, a repository for free software
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* projects.
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*
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* For details, please see http://code.google.com/p/webgoat/
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*
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* @author Jeff Williams <a href="http://www.aspectsecurity.com">Aspect Security</a>
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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 HiddenFieldTampering extends LessonAdapter
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{
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public final static A ASPECT_LOGO = new A().setHref("http://www.aspectsecurity.com")
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.addElement(
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new IMG("images/logos/aspect.jpg").setAlt("Aspect Security").setBorder(0).setHspace(0)
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.setVspace(0));
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private final static String PRICE = "Price";
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private final static String PRICE_TV = "2999.99";
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private final static String PRICE_TV_HACKED = "9.99";
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String regex = "^" + PRICE_TV + "$"; // obviously the "." will match any char - any
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// interesting exploit!
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Pattern pattern1 = Pattern.compile(regex);
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String lineSep = System.getProperty("line.separator");
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String script = "<SCRIPT>" + lineSep + "regex=/" + regex + "/;" + "function validate() { " + lineSep
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+ "if (!regex.test(document.form." + PRICE + ".value)) {alert('Data tampering is disallowed'); "
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+ " document.form." + PRICE + ".value = " + PRICE_TV + ";}" + lineSep + "else document.form.submit();"
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+ lineSep + "} " + lineSep + "</SCRIPT>" + lineSep;
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/**
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* Constructor for the HiddenFieldScreen object
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*/
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public HiddenFieldTampering()
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{
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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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*/
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protected Element createContent(WebSession s)
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{
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ElementContainer ec = new ElementContainer();
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ec.addElement(new StringElement(script));
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float quantity;
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float total;
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String price = PRICE_TV;
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DecimalFormat money = new DecimalFormat("$0.00");
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try
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{
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price = s.getParser().getRawParameter(PRICE, PRICE_TV);
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quantity = s.getParser().getFloatParameter("QTY", 1.0f);
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total = quantity * Float.parseFloat(price);
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} catch (Exception e)
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{
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s.setMessage(WebGoatI18N.get("Invaild data") + this.getClass().getName());
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price = PRICE_TV;
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quantity = 1.0f;
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total = quantity * Float.parseFloat(PRICE_TV);
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}
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if (price.equals(PRICE_TV))
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{
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ec.addElement(new Center().addElement(new H1().addElement(WebGoatI18N.get("ShoppingCart"))));
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ec.addElement(new BR());
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Table t = new Table().setCellSpacing(0).setCellPadding(2).setBorder(1).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().addElement(WebGoatI18N.get("ShoppingCartItems")).setWidth("80%"));
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tr.addElement(new TH().addElement(WebGoatI18N.get("Price")).setWidth("10%"));
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tr.addElement(new TH().addElement(WebGoatI18N.get("Quantity")).setWidth("3%"));
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tr.addElement(new TH().addElement(WebGoatI18N.get("Total")).setWidth("7%"));
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t.addElement(tr);
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tr = new TR();
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tr.addElement(new TD().addElement("56 inch HDTV (model KTV-551)"));
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tr.addElement(new TD().addElement(PRICE_TV).setAlign("right"));
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tr.addElement(new TD().addElement(new Input(Input.TEXT, "QTY", 1).setSize(6)).setAlign("right"));
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tr.addElement(new TD().addElement(money.format(total)));
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t.addElement(tr);
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ec.addElement(t);
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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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ec.addElement(new BR());
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tr = new TR();
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tr.addElement(new TD().addElement(WebGoatI18N.get("TotalChargedCreditCard")+":"));
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tr.addElement(new TD().addElement(money.format(total)));
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tr.addElement(new TD().addElement(ECSFactory.makeButton(WebGoatI18N.get("UpdateCart"))));
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tr.addElement(new TD().addElement(ECSFactory.makeButton(WebGoatI18N.get("Purchase"), "validate()")));
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t.addElement(tr);
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ec.addElement(t);
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Input input = new Input(Input.HIDDEN, PRICE, PRICE_TV);
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ec.addElement(input);
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ec.addElement(new BR());
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}
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else
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{
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if (!price.toString().equals(PRICE_TV))
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{
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makeSuccess(s);
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}
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ec.addElement(new P().addElement(WebGoatI18N.get("TotalPriceIs")+":"));
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ec.addElement(new B("$" + total));
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ec.addElement(new BR());
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ec.addElement(new P().addElement(WebGoatI18N.get("ThisAmountCharged")));
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}
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return (ec);
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}
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/**
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* DOCUMENT ME!
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*
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* @return DOCUMENT ME!
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*/
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protected Category getDefaultCategory()
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{
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return Category.PARAMETER_TAMPERING;
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}
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/**
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* Gets the hints attribute of the HiddenFieldScreen 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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List<String> hints = new ArrayList<String>();
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hints.add(WebGoatI18N.get("HiddenFieldTamperingHint1"));
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hints.add(WebGoatI18N.get("HiddenFieldTamperingHint2"));
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hints.add(WebGoatI18N.get("HiddenFieldTamperingHint3")+ PRICE_TV +WebGoatI18N.get("HiddenFieldTamperingHint32") + PRICE_TV_HACKED );
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return hints;
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}
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private final static Integer DEFAULT_RANKING = new Integer(50);
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protected Integer getDefaultRanking()
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{
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return DEFAULT_RANKING;
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}
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/**
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* Gets the title attribute of the HiddenFieldScreen object
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*
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* @return The title value
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*/
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public String getTitle()
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{
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return ("Exploit Hidden Fields");
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}
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public Element getCredits()
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{
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return super.getCustomCredits("", ASPECT_LOGO);
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}
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}
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