package org.owasp.webgoat.lessons;
import org.owasp.webgoat.session.WebSession;
import org.apache.ecs.Element;
import org.apache.ecs.ElementContainer;
import org.apache.ecs.StringElement;
import org.apache.ecs.html.Div;
import org.apache.ecs.html.Form;
import org.apache.ecs.html.IMG;
import org.apache.ecs.html.Table;
import org.apache.ecs.html.TR;
import org.apache.ecs.html.TD;
import org.apache.ecs.html.Input;
import org.apache.ecs.html.BR;
import java.io.PrintWriter;
import java.util.List;
import java.util.ArrayList;
/***************************************************************************************************
*
*
* This file is part of WebGoat, an Open Web Application Security Project utility. For details,
* please see http://www.owasp.org/
*
* Copyright (c) 2002 - 2007 Bruce Mayhew
*
* This program is free software; you can redistribute it and/or modify it under the terms of the
* GNU General Public License as published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with this program; if
* not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*
* Getting Source ==============
*
* Source for this application is maintained at code.google.com, a repository for free software
* projects.
*
* For details, please see http://code.google.com/p/webgoat/
*
* @author Sherif Koussa <a href="http://www.macadamian.com">Macadamian Technologies.</a>
* @created December 25, 2006
*/
public class JSONInjection extends LessonAdapter
{
private final static Integer DEFAULT_RANKING = new Integer(30);
private final static String TRAVEL_FROM = "travelFrom";
private final static String TRAVEL_TO = "travelTo";
private final static IMG MAC_LOGO = new IMG("images/logos/macadamian.gif").setAlt("Macadamian Technologies")
.setBorder(0).setHspace(0).setVspace(0);
public void handleRequest(WebSession s)
{
try
{
if (s.getParser().getRawParameter("from", "").equals("ajax"))
{
String lineSep = System.getProperty("line.separator");
String jsonStr = "{" + lineSep + "\"From\": \"Boston\"," + lineSep + "\"To\": \"Seattle\", " + lineSep
+ "\"flights\": [" + lineSep
+ "{\"stops\": \"0\", \"transit\" : \"N/A\", \"price\": \"$600\"}," + lineSep
+ "{\"stops\": \"2\", \"transit\" : \"Newark,Chicago\", \"price\": \"$300\"} " + lineSep + "]"
+ lineSep + "}";
s.getResponse().setContentType("text/html");
s.getResponse().setHeader("Cache-Control", "no-cache");
PrintWriter out = new PrintWriter(s.getResponse().getOutputStream());
out.print(jsonStr);
out.flush();
out.close();
return;
}
} catch (Exception ex)
{
ex.printStackTrace();
}
Form form = new Form(getFormAction(), Form.POST).setName("form").setEncType("");
form.setOnSubmit("return check();");
form.addElement(createContent(s));
setContent(form);
}
/**
* Description of the Method
*
* @param s
* Current WebSession
*/
protected Element createContent(WebSession s)
{
ElementContainer ec = new ElementContainer();
String lineSep = System.getProperty("line.separator");
String script = "<script>"
+ lineSep
+ "function getFlights() {"
+ lineSep
+ "var fromField = document.getElementById('"
+ TRAVEL_FROM
+ "');"
+ lineSep
+ "if (fromField.value.length < 3 || fromField.value!='BOS') { return; }"
+ lineSep
+ "var toField = document.getElementById('"
+ TRAVEL_TO
+ "');"
+ lineSep
+ "if (toField.value.length < 3 || toField.value!='SEA') { return; }"
+ lineSep
+ "var url = '"
+ getLink()
+ "&from=ajax&"
+ TRAVEL_FROM
+ "=' + encodeURIComponent(fromField.value) +"
+ "'&"
+ TRAVEL_TO
+ "=' + encodeURIComponent(toField.value);"
+ lineSep
+ "if (typeof XMLHttpRequest != 'undefined') {"
+ lineSep
+ "req = new XMLHttpRequest();"
+ lineSep
+ "} else if (window.ActiveXObject) {"
+ lineSep
+ "req = new ActiveXObject('Microsoft.XMLHTTP');"
+ lineSep
+ " }"
+ lineSep
+ " req.open('GET', url, true);"
+ lineSep
+ " req.onreadystatechange = callback;"
+ lineSep
+ " req.send(null);"
+ lineSep
+ "}"
+ lineSep
+ "function callback() {"
+ lineSep
+ " if (req.readyState == 4) { "
+ lineSep
+ " if (req.status == 200) { "
+ lineSep
+ " var card = eval('(' + req.responseText + ')');"
+ lineSep
+ " var flightsDiv = document.getElementById('flightsDiv');"
+ lineSep
+ " flightsDiv.innerHTML = '';"
+ lineSep
+ " var strHTML='';"
+ lineSep
+ " strHTML = '<tr><td> </td><td>No of Stops</td>';"
+ lineSep
+ " strHTML = strHTML + '<td>Stops</td><td>Prices</td></tr>';"
+ lineSep
+ " for(var i=0; i<card.flights.length; i++){"
+ lineSep
+ " var node = card.flights[i];"
+ lineSep
+ " strHTML = strHTML + '<tr><td><input name=\"radio'+i+'\" type=\"radio\" id=\"radio'+i+'\"></td><td>';"
+ lineSep
+ " strHTML = strHTML + card.flights[i].stops + '</td><td>';"
+ lineSep
+ " strHTML = strHTML + card.flights[i].transit + '</td><td>';"
+ lineSep
+ " strHTML = strHTML + '<div name=\"priceID'+i+'\" id=\"priceID'+i+'\">' + card.flights[i].price + '</div></td></tr>';"
+ lineSep
+ " }"
+ lineSep
+ " strHTML = '<table border=\"1\">' + strHTML + '</table>';"
+ lineSep
+ " flightsDiv.innerHTML = strHTML;"
+ lineSep
+ " }}}"
+ lineSep
+
"function check(){"
+ lineSep
+ " if ( document.getElementById('radio0').checked )"
+ lineSep
+ " { document.getElementById('price2Submit').value = document.getElementById('priceID0').innerHTML; return true;}"
+ lineSep
+ " else if ( document.getElementById('radio1').checked )"
+ lineSep
+ " { document.getElementById('price2Submit').value = document.getElementById('priceID1').innerHTML; return true;}"
+ lineSep + " else " + lineSep + " { alert('Please choose one flight'); return false;}" + lineSep + "}"
+ lineSep + "</script>" + lineSep;
ec.addElement(new StringElement(script));
Table t1 = new Table().setCellSpacing(0).setCellPadding(0).setBorder(0).setWidth("90%").setAlign("center");
TR tr = new TR();
tr.addElement(new TD("From: "));
Input in = new Input(Input.TEXT, TRAVEL_FROM, "");
in.addAttribute("onkeyup", "getFlights();");
in.addAttribute("id", TRAVEL_FROM);
tr.addElement(new TD(in));
t1.addElement(tr);
tr = new TR();
tr.addElement(new TD("To: "));
in = new Input(Input.TEXT, TRAVEL_TO, "");
in.addAttribute("onkeyup", "getFlights();");
in.addAttribute("id", TRAVEL_TO);
tr.addElement(new TD(in));
t1.addElement(tr);
ec.addElement(t1);
ec.addElement(new BR());
ec.addElement(new BR());
Div div = new Div();
div.addAttribute("name", "flightsDiv");
div.addAttribute("id", "flightsDiv");
ec.addElement(div);
Input b = new Input();
b.setType(Input.SUBMIT);
b.setValue("Submit");
b.setName("SUBMIT");
ec.addElement(b);
Input price2Submit = new Input();
price2Submit.setType(Input.HIDDEN);
price2Submit.setName("price2Submit");
price2Submit.setValue("");
price2Submit.addAttribute("id", "price2Submit");
ec.addElement(price2Submit);
if (s.getParser().getRawParameter("radio0", "").equals("on"))
{
String price = s.getParser().getRawParameter("price2Submit", "");
price = price.replace("$", "");
if (Integer.parseInt(price) < 600)
{
makeSuccess(s);
}
else
{
s.setMessage("You are close, try to set the price for the non-stop flight to be less than $600");
}
}
return ec;
}
public Element getCredits()
{
return super.getCustomCredits("Created by Sherif Koussa", MAC_LOGO);
}
protected Category getDefaultCategory()
{
return Category.AJAX_SECURITY;
}
protected List<String> getHints(WebSession s)
{
List<String> hints = new ArrayList<String>();
hints.add("JSON stands for JavaScript Object Notation.");
hints.add("JSON is a way of representing data just like XML.");
hints.add("The JSON payload is easily interceptable.");
hints.add("Intercept the reply, change the $600 to $25.");
return hints;
}
protected Integer getDefaultRanking()
{
return DEFAULT_RANKING;
}
/**
* Gets the title attribute of the HelloScreen object
*
* @return The title value
*/
public String getTitle()
{
return ("JSON Injection");
}
}