Wednesday, July 8, 2015

Install Tor Browser Bundle in Kali Linux

This video covers installing the Tor Browser Bundle v3.6+ (older versions work too, there is just an extra step with the new version,) on Kali Linux. There are 2 errors you will run into when trying to install it, and I cover how to easily fix them.

Why does the Tor Browser Bundle (TBB) give us this running as root error? In any operating system, you want as to have as few processes as possible running at root (or any privilege above their requirements,) especially user processes like TBB or a textpad, games etc. This greatly reduces the ability for a hacker to exploit a flaw in the service and gain root access to your machine. A web browser is more prone to attacks overall because it runs unknown code from anywhere (JavaScript, malicious HTML, ActiveX, Java, PDF exploits, favicon, and many MANY more,) so it is best to avoid running any browser as root if possible!

Despite the Firefox and TBB developers' best efforts, it is possible that there may be vulnerabilities in TBB, and since there is no actual need for it to be run as root and the good people at Tor are concerned for one's safety, they add the warning/error. It is simple to create a non-root account on Kali and install it fine from there, but most people don't need/want to. If you are concerned about the items I mentioned, I'd recommend doing that, and just remember to use `sudo` to run any apps in Kali as root from your non root account.

To extract Tor:
tar -xvf tor-browser-linux64-3.6.1_en-US.tar.xz

To fix the second problem, change to the directory where the Tor files are, then type:
chown -R root *

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