How to Hack an Ethernet ADSL Router

 

Almost half of the Internet users across the globe use ADSL routers/modems to connect to the
Internet however, most of them are unaware of the fact that it has a
serious vulnerability which can easily be exploited even by a noob
hacker just like you. In this post I will show you how to exploit a
common vulnerability that lies in most ADSL routers so as to gain
complete access to the router settings and ISP login details.
Every router comes with a username and password using which it is
possible to gain access to the router settings and configure the
device. The vulnerability actually lies in the Default username and
password that comes with the factory settings. Usually the
routers come preconfigured from the Internet Service provider and hence
the users do not bother to change the password later. This makes it
possible for the attackers to gain unauthorized access and modify
the router settings using a common set of default usernames and
passwords. Here is how you can do it.

Before you proceed, you need the following tool in the process

Angry IP Scanner
Here is a detailed information on how to exploit the vulnerability of
an ADSL router.
Step-1: Go to www.whatismyipaddress.com
Once the page is loaded you will find your IP address. Note it down.
Step-2: Open Angry IP Scanner, here you will see an
option called IP Range: where you need to enter the
range of IP address to scan for.

Suppose your IP is 117.192.195.101,
you can set the range something as 117.192.194.0 to
117.192.200.255 so that there exists atleast 200-300 IP
addresses in the range.

 

Step-3: Go to Tools->Preferences
and select the Ports tab. Under Port selection
enter 80 (we need to scan for port 80). Now switch to
the Display tab, select the option “Hosts with
open ports only” and click on OK.

I have used Angry IP Scanner v3.0
beta-4. If you are using a different version, you need to Go to
Options instead of Tools

 

Step-4: Now click on Start. After a
few minutes, the IP scanner will show a list of IPs with Port 80 open
as shown in the below image.
 

Step-5: Now copy any of the IP from the list, paste
it in your browser’s address bar and hit enter. A window will popup
asking for username and password. Since most users do not change the
passwords, it should most likely work with the default username and
password. For most routers the default username-password
pair will be admin-admin
or admin-password.
Just enter the username-password as specified above and hit enter. If
you are lucky you should gain access to the router settings page where
you can modify any of the router settings. The settings page can vary
from router to router. A sample router settings page is shown below.


If you do not succeed to gain access, select another IP from the list
and repeat the step-5. Atleast 1 out of 5 IPs will have a default
password and hence you will surely be able to gain access. 

What can an Attacker do by Gaining Access to the Router Settings?

By gaining access to the router settings, it is possible for an
attacker to modify any of the router settings which results in the
malfunction of the router. As a result the target user’s computer will
be disconnected from the Internet. In the worst case the attacker can
copy the ISP login details from the router to steal the Internet
connection or play any kind of prank with the router settings. So the
victim has to reconfigure the router in order to bring it back to
action.

 

The Verdict:

If you are using an ADSL router to connect to the Internet, it is
highly recommended that you immediately change your password to prevent
any such attacks in the future. Who knows, you may be the next victim of
such an attack.
Since the configuration varies from router to router, you need
to contact your ISP for details on how to change the password for your
model.

Warning!

All the information provided in this post are for educational
purposes only. Please do not use this information for illegal purposes.

Side Jacking - Hack accounts on LAN or Wifi

Sidejacking is the process of sniffing cookie information, then replaying them against websites in order to clone a victim’s session. We use the term “sidejacking” to distinguish this technique from man-in-the-middle hijacking(Cain and Abel). Whereas man-in-the-middle hijacking interferes with the original session, sidejacking does not. The victim continues to use his/her session blissfully unaware that we are also in his/her account (although signs such as additional e-mails in the ‘sent’ folders might give a clue).

In this tut, I will explain the process of side jacking thru various tools with special focus on Hamster and Ferret

Contents:
I. SideJacking without hamster
-Ethereal/Wireshark, Cain And Abel, Network Miner

II SideJAcking with Hamster and Ferret
-Preparation
-Starting Up
-Using the console

I. Sidejacking without Hamster

All you need to do in order to sidejack is sniff cookies off the wire and edit cookies. This can be done with a wide variety of tools.

You should be comfortable with using a packet-sniffer like Wireshark/Ethereal. For example, the following is a screenshot of sniffing the cookie for Slashdot:

Another useful tool is an extension for Firefox called “Edit Cookies”. The following screens show what it looks like:

Once you can make your cookies the same in the browser that you sniffed from the wire, then you have sidejacked the person’s session. Note that the above information is correct, so that you can successfully sidejack our Slashdot test

You can use this erethreal method, another method can be using cain and abel, network miner and cookie editor which you can read here -> http://tinypaste.com/2b87c2
I am avoiding pasting that part here to focus on hamster and ferret.

II. Sidejacking without hamster and ferret

Now as you saw above the above process was quite cumbersome, especially if u want to repeatedly attack different users this would take a lot of time, to delete old cookies, try new ones and check. Also reading the erethreal dump is not easy hence, hamster is our wizard. So starting with it---> 

 

Download HAmster and Ferret tools Here
http://rapidshare.com/files/381668823/ha

m.rar
These are command line tools, but for those afraid of command line, dont worry, u wont have to do much.
Unzio these into a directory that u can goto easily e.g. C:\hamster

Note:There is one major problem with the Intel® PRO/Wireless 2200BG and some other intel adapters: it doesn’t do promiscuous mode. This means that unlike most other wifi adapters, you can’t use it for sidejacking. To get around this, you would need to buy a cheap USB wifi adapter (usually 1000 rs)

First step is to set you’re a browser’s proxy to Hamster, which will be on port 3128. I strongly recommend that you DON’T use your normal browser, because Hamster totally screws up the cookies in the browser. There are 3 options I have used:
1. used Internet Explorer for sidejacking, because Firefox is my default browser
2. created a second account called “hamster” on my computer, and did the browsing from that account
3. used the alternate “profile” feature of Firefox to have two profiles running at the same time

I'll explain the third step in detail now--> 

 

Firefox allows two profiles to be running at the same time. You can launch them from the command line as follows:

You will have to use these at c:\Program Files\Mozilla Firefox\
The following screen will popup

Click on create profile, select any name.. Next tym u start mozilla use that one for hamster.
Now open your created profile inn Firefox, go to the [Tools / Options] menu. Select the [advanced] Tab, open Network tab under it. Under connections click on settings. Now set up as following:

Set your proxy as shown and click ok.  

Part B. Starting Up

To run Ferret, open command prompt ( In administrator mode is better):
Goto ferret directory (C:\ham for e.g) and type ferret-W.

Now choose your wifi or LAN interface (u can try using the company names or try again)
Now type ferret.exe –i to start sniffing cookies
e.g ferret -i 4 for above one

Note(Only for those who understand):
You might also want to capture packets at the same time:

ferret.exe –i 4 sniffer.mode=most sniffer.directory=\pcaps

The advantage of sniffing packets at the same time is that you can later replay them through Ferret in order to generate a hamster.txt. The cookies last for a long time. To run a packet capture, do something like:

ferret -r \pcaps\sniff-2007-08-04-eth.pcap 

 

Open another command prompt without closing the previous one ( Run as Administrator necessary)
Go to hamster directory(C:\ham for e.g.)
type 'hamster' and enter to start hamster proxy.
Now if you have already done the browser configuration as above move on to next part.
else set the browser proxy to 127.0.0.1 port 3128. 

Part C. Using it!!

Open your configure browser and got to http://hamster/ remember NO . com or www in the name.
(If you get server not found, you didnt set proxy correctly or you didnt start hamster in cmd)
Now u get this

As Ferret is running in the background, it will be updating this list. You’ll need to manually refresh it to see if any information has been added.

In the right-hand window, you’ll get a list of targets. Most targets will have just the IP address. Some will have additional identifying information that Ferret finds. This identifying information is only names associated with the IP address, it’s not cookie information.

When you click on an IP address, you “clone” it. At this point, all the cookie are set for that IP address. Keep that in mind – a lot of problems people have is because they set the current IP address to something else, thereby erasing the cookies of a site they want to access.

Cloning an IP address by clicking on it will cause the window to the left to be filled in, as in the following example:

 

 You have three options here. You can view the raw cookies for this IP address (discussed below). You can click on a URL that has a HIGHER probability of being Sidejacked. Or you can choose from the URLs below, which have a lower probability of being Sidejacked.

At this point, just click the URL. For example, I clicked on the http://slashdot.org URL in the above example, and the following window popped up:

The name “sidejacking” in the mid-left of that screenshot is because I created a test account with the username of “sidejacking”. This shows how I’ve successfully cloned the cookies to get to that Slashdot account.

Clicking on the Gmail one, I get the following screen:

And here is the Facebook account:

FootNotes:

When things work well, its point-and-click. They don’t always work well.

The first thing that sucks is you have to figure out which interface to sniff on and make sure that you have a proper wifi adapter. I recommend downloading Wireshark and make sure that you’ve got the packet sniffing working with that product before you start Ferret.

Both Ferret and Hamster will crash or hang. You’ll be restarting the programs a lot. Right now, Ferret overwrites ‘hamster.txt’ every time it restarts, so if you’ve got a good session, make copies of it (or log to sniffer files, and recreate it).

The Hamster proxy is really slow. You’ll click on a link and have to wait patiently sometimes. Check the Hamster console window in order to see what’s going on.

Cloning sites is finicky. Sometimes you have to choose the right URL from the list, and choosing the wrong URL will cause the server to reset the cookies, locking you (and the original person) out from the account until a re-login. It takes practice to figure out what you can, and cannot, clone.

Finally, when the original session cookies expire, you can’t clone them. This is rarely a problem in a live environment, but if you work from capture files, it becomes more difficult. 

 

 ENJOY..!