공부(14)

피해자 MAC 주소 추출(1)

 

sender는 목표로 하고있는 피해자

 

target은 일반적으로 라우터를 의미

 

일반적으로 라우터를 거쳐서 패킷을 보낼 것임

 

Main.java

package controller;

import org.jnetpcap.Pcap;
import org.jnetpcap.PcapIf;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;

public class Main extends Application {
	
	public static Pcap pcap = null;
	public static PcapIf device = null;
	
	public static byte[] myIP = null;
	public static byte[] senderIP =null;
	public static byte[] targetIP =null;
	
	public static byte[] myMAC = null;
	public static byte[] senderMAC =null;
	public static byte[] targetMAC =null;
	
	private Stage primaryStage;
	private AnchorPane layout;
	
	@Override
	public void start(Stage primaryStage) {
		this.primaryStage = primaryStage;
		this.primaryStage.setTitle("JavaFX ARP SPoofing");
		setLayout();
	}
	
	public void setLayout() {
		try {
			FXMLLoader loader = new FXMLLoader();
			loader.setLocation(Main.class.getResource("../view/View.fxml"));
			layout = (AnchorPane) loader.load();
			Scene scene = new Scene(layout);
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public Stage getPrimaryStage() {
		return primaryStage;
	}
	
	public static void main(String[] args) {
		launch(args);
	}

}

 

Controller.java

package controller;

import java.net.InetAddress;
import java.net.URL;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.ResourceBundle;

import org.jnetpcap.Pcap;
import org.jnetpcap.PcapHeader;
import org.jnetpcap.PcapIf;
import org.jnetpcap.nio.JBuffer;
import org.jnetpcap.nio.JMemory;
import org.jnetpcap.packet.JRegistry;
import org.jnetpcap.protocol.lan.Ethernet;

import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.Button;
import javafx.scene.control.ListView;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import model.ARP;
import model.Util;

public class Controller implements Initializable {
	
	@FXML
	private ListView<String> networkListView;
	
	@FXML
	private TextArea textArea;
	
	@FXML
	private Button pickButton;
	
	@FXML
	private TextField myIP;
	
	@FXML
	private TextField senderIP;
	
	@FXML
	private TextField targetIP;
	
	@FXML
	private Button getMACButton;
	
	ObservableList<String> networkList = FXCollections.observableArrayList();
	
	private ArrayList<PcapIf> allDevs = null;
	
	@SuppressWarnings("deprecation")
	@Override
	public void initialize(URL location, ResourceBundle resources) {
		allDevs = new ArrayList<PcapIf>();
		StringBuilder errbuf = new StringBuilder();
		int r = Pcap.findAllDevs(allDevs, errbuf);
		if (r == Pcap.NOT_OK || allDevs.isEmpty()) {
			textArea.appendText("네트워크 장치를 찾을 수 없습니다.\n" + errbuf.toString() + "\n");
			return;
		}
		textArea.appendText("네트워크 장치를 찾았습니다.\n원하시는 장치를 선택해주세요.\n");
		for (PcapIf device : allDevs) {
			networkList.add(device.getName() + " " +
					((device.getDescription() != null) ? device.getDescription() : "설명 없음"));
		}
		networkListView.setItems(networkList);
	}
	
	public void networkPickAction() {
		if(networkListView.getSelectionModel().getSelectedIndex() < 0) {
			return;
		}
		Main.device = allDevs.get(networkListView.getSelectionModel().getSelectedIndex());
		networkListView.setDisable(true);
		pickButton.setDisable(true);
		
		int snaplen = 64 * 1024;
		int flags = Pcap.MODE_PROMISCUOUS;
		int timeout = 1;
		
		StringBuilder errbuf = new StringBuilder();
		Main.pcap = Pcap.openLive(Main.device.getName(), snaplen, flags, timeout, errbuf);
		
		if (Main.pcap == null) {
			textArea.appendText("네트워크 장치를 열 수 없습니다.\n" + errbuf.toString() + "\n");
			return;
		}
		textArea.appendText("장치선택 : " + Main.device.getName() + "\n");
		textArea.appendText("네트워크 장치를 활성화했습니다.\n");
	}
	
	public void getMACAction() {
		if(!pickButton.isDisable()) {
			textArea.appendText("네트워크 장치를 먼저 선택해주세요.\n");
			return;
		}
		
		ARP arp = new ARP();
		Ethernet eth = new Ethernet();
		PcapHeader header = new PcapHeader(JMemory.POINTER);
		JBuffer buf = new JBuffer(JMemory.POINTER);
		ByteBuffer buffer = null;
		
		int id = JRegistry.mapDLTToId(Main.pcap.datalink());
		
		try {
			Main.myMAC = Main.device.getHardwareAddress();
			Main.myIP = InetAddress.getByName(myIP.getText()).getAddress();
			Main.senderIP = InetAddress.getByName(senderIP.getText()).getAddress();
			Main.targetIP = InetAddress.getByName(targetIP.getText()).getAddress();
		}	catch (Exception e) {
				textArea.appendText("IP 주소가 잘못되었습니다.\n");
				return;
		}
		
		myIP.setDisable(true);
		senderIP.setDisable(true);
		targetIP.setDisable(true);
		getMACButton.setDisable(true);
		
		arp = new ARP();
		arp.makeARPRequest(Main.myMAC, Main.myIP, Main.targetIP);
		buffer = ByteBuffer.wrap(arp.getPacket());
		if (Main.pcap.sendPacket(buffer) != Pcap.OK) {
			System.out.println(Main.pcap.getErr());
		}
		textArea.appendText("타겟에게 ARP Request를 보냈습니다\n" +
				Util.bytesToString(arp.getPacket()) + "\n");
	}
}

 

Util.java

package model;

public class Util {

	public static String bytesToString(byte[] bytes) {
		StringBuilder sb = new  StringBuilder();
		int i= 0;
		for (byte b : bytes) {
			sb.append(String.format("%02x ", b & 0xff));
			if(++i % 16 ==0) sb.append("\n");
		}
		return sb.toString();
	}
}

 

View.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<?import javafx.collections.*?>

<AnchorPane prefHeight="480" prefWidth="750" fx:controller="controller.Controller"
	xmlns:fx="http://javafx.com/fxml/1">
	<children>
		<ListView fx:id="networkListView" layoutX="15" layoutY="14" 
			prefHeight="86" prefWidth="462">
			<items>
				<FXCollections fx:factory="observableArrayList"/>
			</items>
		</ListView>
		<Button fx:id="pickButton" onAction="#networkPickAction" layoutX="395" layoutY="112" 
			prefHeight="29" prefWidth="82" text="PICK"></Button>
		<TextArea fx:id="textArea" editable="false" layoutX="15" layoutY="156" 
			prefHeight="325" prefWidth="462"></TextArea>
		<Label layoutX="486" layoutY="14" text="My IP">
			<font>
				<Font size="15"/>
			</font>
		</Label>
		<Label layoutX="486" layoutY="44" text="Sender IP">
			<font>
				<Font size="15"/>
			</font>
		</Label>
		<Label layoutX="486" layoutY="75" text="Target IP">
			<font>
				<Font size="15"/>
			</font>
		</Label>
		<TextField fx:id="myIP" layoutX="562" layoutY="12" prefHeight="23" prefWidth="175"/>
		<TextField fx:id="senderIP" layoutX="562" layoutY="44" prefHeight="23" prefWidth="175"/>
		<TextField fx:id="targetIP" layoutX="562" layoutY="76" prefHeight="23" prefWidth="175"/>
		<Button fx:id="getMACButton" onAction="#getMACAction" layoutX="654" layoutY="112" 
			prefHeight="29" prefWidth="82" text="START"></Button>			
	</children>
</AnchorPane>