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How I Hacked My Home, IoT Style
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RyanSepe
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RyanSepe,
User Rank: Ninja
8/27/2014 | 12:31:29 PM
Assessment Tools
Interesting article.

What tools did you use to discover the vulnerabilities. (Kismet, nessus, etc) And when performing the tests, did you take the mindset of an attacker? Meaning treating this as if you had no inner intel or did you do this as a how am I vulnerable from each vector that is already known to the home owner?

I think these are important tests for anyone to run. Also, we need to ingrain security from the development stage. This comment is directed at the non-encrypted data transit from the smart tv. If we don't make this a priority as the consumer than organizations may be reluctant to change.
Marilyn Cohodas
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Marilyn Cohodas,
User Rank: Strategist
8/27/2014 | 3:33:03 PM
Re: Assessment Tools & Lock down
David , were you able to lock down your home network -- or any part of it? Also please keep us posted on what you hear back from vendors about their efforts on developing patches .
davidjacoby
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davidjacoby,
User Rank: Author
8/27/2014 | 3:47:55 PM
Re: Assessment Tools & Lock down
Hi Marilyn,


Thank you for your comments... Well what do you mean with "lock down" my home network. Once one of the devices which were on my local network, i could have performed various attacks to make the network unaccessible, such as DoS attacks.


I could also have deleted all the data on the storage device, and i mean ALL data, i could have crashed the entire device, probably same thing for the other devices such as TV. Due to the cost of the device, i did not want to do that :) And i did not want to explain for the kids why the TV was broken :)
davidjacoby
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davidjacoby,
User Rank: Author
8/27/2014 | 3:52:02 PM
Re: Assessment Tools
Ryan, thank you for your comment.

 

I did not really use any tools in that way. The only "tools" i used where nmap, telnet, netcat, perl, python and my web browser with the "Live HTTP headers" extension installed.

During the audit i developed my own tools on a regular basis to automate some of the tests i wanted to perform. I personally do not have strong faith in the open source "hacking" tools. When you want to audit large networks, they might be useful. but when you only have a handful of devices, its much better with a minimalistic approach.

I am pretty sure any vulnerabiluty scanner would jum pof the roof when it comes to missing security patches, but remember, all the vulnerabilities i discovered were new, and had not been discovered before. Then these tools such as Nessus, does not really work.

 

I hope this helps:)
davidjacoby
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davidjacoby,
User Rank: Author
8/27/2014 | 3:52:27 PM
Re: Assessment Tools
Ryan, thank you for your comment.

 

I did not really use any tools in that way. The only "tools" i used where nmap, telnet, netcat, perl, python and my web browser with the "Live HTTP headers" extension installed.

During the audit i developed my own tools on a regular basis to automate some of the tests i wanted to perform. I personally do not have strong faith in the open source "hacking" tools. When you want to audit large networks, they might be useful. but when you only have a handful of devices, its much better with a minimalistic approach.

I am pretty sure any vulnerabiluty scanner would jum pof the roof when it comes to missing security patches, but remember, all the vulnerabilities i discovered were new, and had not been discovered before. Then these tools such as Nessus, does not really work.

 

I hope this helps:)
RyanSepe
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RyanSepe,
User Rank: Ninja
8/27/2014 | 3:54:52 PM
Re: Assessment Tools
It does, thanks!

What would you recommend for something where you have little control such as the unencrypted smart tv? What are the mitigation options?
Marilyn Cohodas
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Marilyn Cohodas,
User Rank: Strategist
8/27/2014 | 3:55:34 PM
Re: Assessment Tools & Lock down
Point taken! Hopefully the manufacturers (someday) will take care of those minor details.

:-)
davidjacoby
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davidjacoby,
User Rank: Author
8/27/2014 | 3:59:37 PM
Re: Assessment Tools
Ryan, well, the problem with most IoT device is that you have very little control over them, but the most effective way to minimize the post-exploitation phase, and also minimize the risk that someone actually take advantage of these vulnerabilities is to put all your IoT devices in a seperate DMZ / VLAN, and restrict access TO the Internet from these devices.

Why would your printer or NAS need internet access? Maybe for updates? But then you can enable access to the update servers. 

 

But putting them in a restricted DMZ seems to bean effecting option right now.
Stratustician
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Stratustician,
User Rank: Moderator
8/28/2014 | 9:14:00 AM
Re: Assessment Tools
Great idea to put these devices in a DMZ or VLAN isolated from everything else.  While I am sure the hacker community has better things to do right now than target these devices, I am sure as more folks start linking cloud storage to them, or even local storage, the interest will increase significantly and we'll start to see more malware targeted towards these devices.
Kelly Jackson Higgins
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Kelly Jackson Higgins,
User Rank: Strategist
8/28/2014 | 3:55:38 PM
Re: Assessment Tools
Hi there David--Cool project! One common theme I've seen with a lot of the home automation stuff is that you need local/physical access to compromise these devices. How much did physical access play in your research? 

BTW, good thing you didn't mess with the kids' TV. 
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