Hacking Gmail account using GX Cookie by GONAYAONE WAPDIZZY Hacking Gmail account using GX Cookie Introducti on Hacking web application was always curious for the script kiddies. And hacking free web email account is every geek first attempt. The method which I will describe in this post is not new; the same method can be applied to yahoo and other free web email services too. The method we will be using is cookie stealing and replaying the same back to the Gmail server. There are many ways you can steal cookie, one of them is XSS (Cross site scripting)discussed by other is earlier post. But we won’t be using any XSS here, in our part of attack we will use some local tool to steal cookie and use that cookie to get an access to Gmail account.Assumption: * You are in Local Area Network (LAN) in a switched /wireless environment : example : office , cyber café, Mall etc.* You know basic networking. Tool used for this attack: * Cain & Abel * Network Miner * Firefox web browser with Cookie Editor add-ons Attack in detail: We assume you are connected to LAN/ Wireless network. Our main goal is to capture Gmail GX cookie from the network. We can only capture cookie when someone is actually using his gmail. I’ve noticed normally in lunch time in office, or during shift start people normally check their emails. If you are in cyber café or in Mall then there are more chances of catching people using Gmail. We will go step by step, If you are using Wireless network then you can skip this Step A. A] Using Cain to do ARP poisoning and routing:Switch allows unicast traffic mainly to pass through its ports. When X and Y are communicating eachother in switch network then Z will not come to know what X & Y are communicating, so inorder to sniff that communication you would have to poison ARP table of switch for X & Y. In Wireless you don’t have to do poisoning because Wireless Access points act like HUB which forwards any communication to all its ports (recipients). *. Start Cain from Start > Program > Cain > Cain * Click on Start/Stop Sniffer tool icon from the tool bar, we will first scan the network to see what all IPs are used in the network and this list will also help us to launch an attack on the victim.* Then click on Sniffer Tab then Host Tab below. Right click within that spreadsheet and click on Scan Mac Addresses,from the Target section select All hosts in my subnet and then press Ok. This will list all host connected in your network. You will notice you won’t see your Physical IP of your machine in that list. How to check your physical IP ?> Click on start > Run type cmd and press enter, in the command prompt type Ipconfig and enter. This should show your IP address assign to your PC. It will have following outputs: Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : xyz IP Address. . . . . . . . . . . . : 192.168.1.2 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 Main thing to know here is your IP address and your Default Gateway.Make a note of your IP Address & default gateway. From Cain you will see list of IP addresses,here you have to choose any free IP address which is not used anywhere. We assume IP 192.168.1.10 is not used anywhere in the network. * Click on Configure > APR > Use Spoofed IP and MAC Address > IP Type in 192.168.1. 10 and from the poisoning section click on “Use ARP request Packets” and click on OK. * Within the Sniffer Tab , below click on APR Tab, from the left hand side click on APR and now click on the right hand top spreadsheet then click on plus sign tool from top. The moment you click that it will show you list of IP address on left hand side. Here we will target the victim IP address and the default gateway. The purpose is to do ARP poisoning between victim and the default gateway and route the victim traffic via your machine. From the left side click on Victim IP address, we assume victim is using 192.168.1.15. The moment you click on victim IP you will see remaining list on the right hand side here you have to select default gateway IP address i.e. 192.168.1.1 then click on OK. * Finally, Click on Start/ Stop Sniffer tool menu once again and next click on Start/Stop APR. This will start poisoning victim and default gateway
Posted on: Thu, 12 Sep 2013 10:52:18 +0000
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