#!/zitstif.no-ip.org/

Thanks to Shawn Merdinger, from infosecisland for the inspiration and  thanks to many others in the information security community, I’m continuing with my ‘Weaponizing the Nokia N900’ series with another entry.

Firstly, I would like to mention that I’m contemplating on writing a program to automate the process of turning your N900 into a pentester’s device. This is largely due to the fact that the neopwn project seems to have come to a stand still. I have attempted contacting an individual from the neopwn project, however I haven’t had much luck.

In this post I will cover some of the other attacks you can carry out with your N900 as a rogue ap point using dns spoofing and David Kennedy‘s Social Engineering Toolkit. Along with that, I’ll give you information on how to get packet injection working so the aircrack suite is more useful to you.

Rogue AP Goodness:

1.) Download SET to your n900 and take note of this information:

a.) You’ll need to install some additional python modules  such as, python-crypto. Python-crypto is in the repositories if you have the extra repositorise that I mentioned  in an earlier post: http://zitstif.no-ip.org/?p=451

b.) I wasn’t able to find python-pexpect in the repositories, but luckily SET was able to download it and install it for me.

c.) If you’re planning on using metasploit in tandem with SET, you’ll need to do as follows:

ln -s /usr/bin/rub1.8 /usr/bin/ruby

Oddly enough, SET does not do a check for whether or not if you have ruby installed. I would implement something like this some where in the SET project:

http://zitstif.no-ip.org/setfix.txt

2.) See my earlier post on how to setup your n900 as a rogue ap point: http://zitstif.no-ip.org/?p=459 (Keep in mind though we’re going to inject a new step or two.)

3.) After step 4 (in the earlier rogue ap point instructions) load up SET and select number 2 for the website attack vectors section

4.) Select option 1 for the java applet attack method

5.) Now select the site cloner option

6.) Select a website to clone (Hmm anyone up for Facebook?! 😉 )

7.) For the payload, give SET’s own payload a try, it’s pretty powerful and you can even run a keylogger. In addition to that for the moment, this attack bypasses some AV solutions. (The system I tested this on was a fully patched Windows 7 x64 system that has Microsoft Security Essentials up to date, and I was able to get a session without any AV alarms going off.)

8.) Before you fire up ettercap, go to etter.dns and create an entry like this (especially if you’re using the mobilehotspot application)

www.facebook.com     A      10.105.242.1

9.) Now run this:

ettercap -i wlan0 -q -T -p -u // // -P dns_spoof

What I adore about this attack, is the java applet infection method. It’s a great social engineering method for gaining access to victim’s machines. Plus with SET, you don’t need sun-java6-jdk, which doesn’t appear to be available in the n900’s repositories.

I also wanted to note, that I wasn’t able to get the java applet to work against OSX systems or Linux systems. 🙁

Aircrack-ng goodness:

I was able to get packet injection working and was able to successfully use the chop-chop attack on a WEP network to create enough IVs and then crack the WEP key in about 10 minutes.

Please see this blog entry:

http://david.gnedt.eu/blog/wl1251/

Also pay close attention to:

http://david.gnedt.eu/wl1251/README

Be careful about using this driver because it seems to drain battery life quite quickly.

(Speaking of which..)

Additional notes:

One more tip I would like to share with fellow N900 owners on extending battery life is as follows:

-Uninstall applications that eat up a lot of CPU time and run in the background

-Disable your wifi connection if you’re not using it

-Dim the brightness of your screen

-Disable anything you don’t need or aren’t currently using

-Use an application to that allows you to switch between 3G and 2G networks. If you’re just using SMS and calling people, all you need is the 2G network. (In my humble opinion)

That’s all for now. As usual, more to come!

Things I’ve taken note of over the past months:

1.) Finding ‘too much information’ (even when it’s public information) on a company can scare HR people, go figure.

2.) Linksys routers that are compatible with DD-WRT or the like, are great for being used as pivot points in networks. For example, if you’re able to to gain access to a router that is DD-WRT compatible and you can get SSH up and running on it, you’ve opened up a lot of opportunities.

One opportunity would include scanning the internet network using proxychains and nmap over an SSH tunnel. You could also use proxychains and nikto to scan web servers that are in the associated network with the DD-WRT compatible router.

You can also setup a private second WLAN network on the DD-WRT compatible router to have a sense of secure access to the network you’re penetrating. Using DD-WRT as a penetration tester, really opens up your possibilities.

3.) http://ipq.co rocks, ‘nough said. 🙂

4.) Being able to boot up a live Linux distro on a victim machine, use bhive, samdump2 (like this tutorial http://www.irongeek.com/i.php?page=security/localsamcrack2), to extract password hashes and then do ‘Pass the hash attacks’ via metasploit (like shown here: http://securitytube.net/Metasploit-Megaprimer-Part-16-(Pass-the-Hash-Attack)-video.aspx) is incredibly cool.

5.) The Nmap scripting engine rocks: http://securitytube.net/Mastering-the-Nmap-Scripting-Engine-(Blackhat-2010)-video.aspx

6.) Did you know you could install Nmap silently on a Windows machine? (Yes, it will also install winpcap.)
nmap-5.35DC1-setup.exe /S

7.) Other cool apps to install ‘silently’ using msiexec on Windows machines:  (msiexec /i appname.msi /q)
http://www.python.org/download/releases/2.5/
http://www.activestate.com/activeperl/downloads

8.) The concepts of SSH reverse connections and port forwarding make me elated: http://www.securitytube.net/Hacking-through-the-Windows-Firewall-using-Metasploit-video.aspx

More to come as usual…

Creating, running and deleting files with Device File names from PaulDotCom on Vimeo.

I just watched this little demonstration and I thought it was quite intriguing. Enjoy!

Learn more at: http://pauldotcom.com/2010/02/deleting-the-undeleteable.html

More to come!