Mac Security Status Report, Part II

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Internet Privacy Tools

One of the quietly astounding developments on the Mac platform is the arrival of terrific tools for establishing real privacy on the Internet. 2010 was rife with stories about how our privacy and even our identity was being stripped away by everyone from the Corporate Oligarchy to the legitimate US federal government. You'd think we were still living under the thrall of The Bush League Era, the assault on privacy has been so persistent and thorough. But serious tools for reestablishing US Constitution guaranteed privacy rights are here and they work. I would go so far as to say that 2010 established an Internet revolution of user privacy. I could not be more pleased.

Here are a few of the wonderful privacy tools and events from 2010. Keep in mind that much of this has been in the works for years and that there are more privacy tools on the way:

1) The Onion/Tor/Vidalia Project: The "Onion Router" project began back in 2002 as a method for concealing Internet user's identity and network activity, preventing surveillance and traffic analysis. Amazingly, the project was originally supported by the US Naval Research Laboratory. In 2004 the Electronic Frontier Foundation (EFF) began supporting the project, providing important guidance and solidification of the project's manifesto. In 2006 the Tor Project was established as a non-profit organization gathering and providing all financial support.

There are a number of FREE pieces of software that make use of the Tor Network. The prime program is Vidalia, aka 'Tor'. This is the software that runs the show. If you use Firefox, you will also need to install the Tor Button add-on. The next useful tool is a web page called "Check". It will verify for you whether you have Tor properly running on your system and web browser. Of side interest are a few other tools such as the Tor Browser Bundle (currently in beta for Mac OS X), and the Firefox add-on FoxyProxy.

Learning how to use Tor is difficult. Try to find someone who understands it to help you out. It is very much 'geek' level technology with meagre documentation and lots of obscure tricks required to use it to the fullest. With patience you'll find that Tor is astounding, effective and important for maintaining real Net Neutrality and user privacy.

In the near future I will be providing a long promised Mac specific article about how to use Tor for overcoming media marketing blackouts on the Internet. Keep an eye on my MacSmarticles blog. If you wish very hard, you may find me providing a series of articles about how to use Tor, translating geek-speak into intermediate Mac user lingo.

2) Ghostery: This is a FREE tracking cookie and web-bug tracking system. The tracker list is frequently updated and is very thorough from my experience. It runs on-the-fly killing off inter-website tracking systems. As you move from page to page it provides you with a small window listing all the detected and blocked tracking sources. As you use Ghostery you will seriously astounded at the amount of tracking/surveillance being perpetrated at you. Maybe you don't care. Maybe you're in marketing and you believe anti-tracking tools are evil. Personally, I love Ghostery and won't leave my home page without it.

Here is what the Ghostery developers have to say about it:

Be a web detective.

Ghostery is your window into the invisible web � tags, web bugs, pixels and beacons that are included on web pages in order to get an idea of your online behavior.

Ghostery tracks the trackers and gives you a roll-call of the ad networks, behavioral data providers, web publishers, and other companies interested in your activity...

There are THREE versions of Ghostery that work on Mac. One is the Firefox add-on. Another is the Safari extension. The last version is for Google Chrome. You can access all versions of Ghostery HERE.

3) Safari Cookies: This is an indispensable FREE add-on for Safari. It works great with Ghostery and provides further functionality. It has three main functions:

• It allows you to create a website Cookie white list while killing off everything else.
• It allows you to create a Flash Cookie white list while killing off everything else.
• It allows you to create a website Database white list while killing off everything else. (I bet you didn't even know that websites could dump database information into your web browser! Very nasty).

Important: Do NOT use versions 1.6.4 - 1.6.7 of Safari Cookies. I've been in contact with the developer about their bugs and he most kindly has overcome them all with version 1.6.8 onwards. Now that it is working again, I cannot recommend Safari Cookies enough. Many thanks to SweetP Productions!

4) ECMAScript/JavaScript Prevention Tools: JavaScript is both a boon and a plague on the Internet. JavaScript allows such nifty things as Ajax coding on web pages. And yet, frequent readers of this blog know that I would very much enjoy JavaScript being erased from history and replaced with a scripting language that is actually and reliably SECURE. IOW: JavaScript is a gateway for malware and OS pwning. The blame for this catastrophic mess lies with three sources:

1. Netscape, who invented Mocha, renamed LiveScript, the original name of 'JavaScript' before marketing-morons were allowed to license and inflict the utterly confusing and wrong 'Java' name into its title. (I despise marketing-morons. Have you noticed that? I worked with them every day for five long, stressful, infuriating years at Eastman Kodak, gawd help me. But I rant...).
2. Microsoft, who inflicted their own typical insecure crapcode into JavaScript in the form of a monstrosity they call 'JScript'. Until recently, if you had attempted to resolve a web page that was designed using Microsoft's worst-in-class web design program 'FrontPage' you found the result to be a disaster. JScript was the main culprit. These days most web browsers comprehend JScript. But it remains a prime cause of hit-and-run website malware infections. Microsoft trolls will find this statement infuriating I exaggerate not. Just be glad that Mac users don't also have to contend with ActiveX, yet-another insecure Microsoft scripting language. (The Mozilla Project used to support Active-X but a couple years back banned it from any of their browsers for the benefit of their users and future generations of Internet users, amen).
3. Adobe, who own what was once Macromedia, who perpetrated an insecure scripting language called ActionScript. It is mainly used in Flash and SWF embedded web pages, is one reason why Flash hacking is well known as a prime method for pwning Mac OS X. It is also one of the many reasons why Apple wisely banned Flash from their iDevices. It is also a prime source of malware for the Google Android OS.

Preventing this toxic brew of dangerous scripting languages from ruining your Internet browsing experience has become increasingly crutial. That is why I champion browser add-ons that let you choose when or whether to load JavaScript. Here are a few of the JavaScript prevention tools for Mac web browsers:

� NoScript: This celebrated FREE Firefox add-on from InformAction is brilliant. It is frequently updated to keep up with the lastest in scripting crapcode. And it not only protects you from evil JavaScript! It also protects you from evil Java, Flash and other insecure web plug-in code that may be out to infect or pwn you. This add-on is one of the prime reasons to dump all your other web browsers and go 100% Firefox. I kid you not. Much as I like Safari, when I want first class web security, I use Firefox with both NoScript and Ghostery running. Get it. Use it. Enjoy!

� JavaScript Blacklist: This is a rather meagre FREE Open Source add-on JavaScript killer for Safari. It allows you to block JavaScript from any web domain. Sadly, it is little more than proof-of-concept with a teeny-weeny 2.5 inch text box for inputting  your blocked website list. The best way to use it is to create your list in a text editor then copy and paste it into the teeny-weeny box. Whenever you want to add to your list, edit your text file then copy and paste again. There is no point in bothering to do any editing within JavaScript Blacklist itself. If you can deal with its shortcomings, this is a nice add-on for Safari fans like myself.

If you're ambitious, there are places to find lists of websites know to be infected with dangerous JavaScript. Ideally you could hack together a list from NoScript. But you'll find the task arduous. Don't bother.

5) Open Wi-Fi Router Defense Tools:

HTTPS Everywhere

This is a Firefox extension/add-on that specifically counters the hackware Firesheep extension/add-on. You can read about Firesheep here:

Firesheep

The general concept of this hacker war is that every website must stop using mere http connections and move over to https, SSL encrypted connections. HTTPS forces on SSL at websites exploited by Firesheep that are known to offer it.

6) Evercookie Defense Tools:

The 'Evercookie' is a concept developed this past year that threatens even the most obsessive of personal privacy web surfers. You can read about it here:

Evercookie

The basic concept is that there are multiple files tossed onto our computer as we surf the Internet. What we call browser 'cookies' are only one form. Using the Everycookie concept, a personal privacy parasite needs only one of these several files to track us across the Internet. And any one of these files can be used to respawn all the others. Therefore, with the Evercookie system, real personal privacy requires deleting every single one of these tracking files from your web browser

The best tool to combat the Evercookie so far, that I am aware of, is the BetterPrivacy extension/add-on for Firefox. You can read about hit and download it here:

BetterPrivacy

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There are further Internet privacy tools a plenty! But this shortlist covers the best of them and will get you going. I know! These tools don't fully solve the 'Evercookie' dilemma. But I don't know anything that does, not yet anyway. Hopefully an Evercookie killing tool is in store for us in 2011.

Coming up in Part III will be my version of a comprehensive list of currently active malware for Mac OS X, including all their various names. All of them are either Trojan horses or hacker tools. I am also looking forward to putting together an article on Mac OS X 10.7 Lion security, which so far sounds like a decent improvement. Stay tuned!
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Firesheep Wi-Fi Warz

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The Sheeple Are Burning

October 25 a hackertool was released for Firefox in the form of an add-on called Firesheep. It is extremely easy to install and use on Mac, Linux and Windows versions of Firefox. (I will not provide the link. Sorry.) It provides casual Firefox web browser users to spy on and doppelganger anyone who is connected to the Internet via a shared, open Wi-Fi connection. Simply connect your computer to the same open Wi-Fi connection and commence surveillance and identity theft.

It performs its dirty deeds by way of coopting the cookies being sent in the clear from any victim's computer. It is not a thorough form of identity theft, but it adequate while the hacker's computer remains within that open WiFi connection. IDs and passwords are typically not sent in the clear. However, the Firesheep add-on is able copy out of the air the cookies any user is sending to any website. The contents of the cookies may remain completely incomprehensible to the hacker. All that is required is the contents of that cookie to literally "BE" the intercepted victim. This means the hacker can access any active website connections and fake being that person through the use of their intercepted cookies. The hacker can do ANYTHING on those websites AS the victim. If at any point the website asks for password verification, such as when buying items from Amazon.com, the hacker is thwarted. Their identity theft stops dead at that point. However, anything else goes. This can create incredible havoc on the Internet.

At the point in time of this article being posted, well over HALF A MILLION PEOPLE have downloaded Firesheep. That essentially says it is becoming universal, endangering ALL unencrypted Wi-Fi connections to the Internet. And that was the purpose of creating and providing this add-on to the entire computer community.

The creator of this hacker tool is a Black Hat, which is to say that he bulldozes improvements in computer security by providing the means of exploiting a security hole to the world at large without any prior warning to anyone. To use a very mild metaphor, it is the equivalent of 'Tough Love' for computer users and software developers. In this case the desired effect is to lock up ALL Wi-Fi connections via encryption, ending forever open Wi-Fi connections.

There are two cures for this dilemma:

1) All websites must provide SSL encrypted connections at all times, not simply when a user logs in. This means that all websites would stop using merely HTTP connections and instead use only HTTPS connections between themselves and their users. This adds some minor overhead burdens but is entirely feasible. How long it will take the entire World Wide Web to catch up is the big question. The hope is that it will be immediate. But we're dealing with humanity here, therefore...

2) All Wi-Fi connections must require WPA account encryption. This means that all users of an 'open' Wi-Fi connection site must have and use a password in order to access the Wi-Fi hub. Surprisingly, this is an incredibly simple thing to do with nearly all modern routers. (Older routers that only use WEP encryption are SOL). Everyone making a connection to the router can use the exact same password! Routers know the MAC address of every device that connects to them. This allows them to keep each and every connection entirely separate. The fact that each connection uses the same password provides almost perfect separation of users while providing unbreakable (at this time anyway) encryption.

Here's how #2 cure would work at Starbucks: A simple sign is provided at the counter that says something to the effect of "To access Starbucks' Wi-Fi connection, please use the password 'starbucks'." That's it! Simple.

Since Firesheep was let loose for the average computer user, there have been plenty of happy stories of users speaking to the manager of shops that provide free Wi-Fi and asking them to turn on WPA account encryption. For anyone familiar with setting up Wi-Fi routers, turning on WPA is trivial. The shop managers have been happily changing their router setup and killing off the Firesheep threat. I strongly suggest that you do the same EVERYWHERE you go with your Wi-Fi device.

WEP encryption, unfortunately, was created in haste and provides NO SECURITY. It is trivial for hackers to obtain tools that can break into WEP encryption within less than a minute. It is expected, in fact, that future versions of Firesheep or similar hacker tools will include a WEP cracking tool.


The Next Best Thing To A Cure

I knew further shoes were going to drop regarding this subject. I just found out this evening that a helper tool has been provided by Zscaler that can warn you when there are Firesheep prowling around in an open Wi-Fi connection. Once again it is a Firefox add-on. Its name is Blacksheep. (Why black? Read back in the article about Black Hat hackers.)

Below is a quote from our pals at the SANS Institute from SANS NewsBites Vol. 12 Num. 89:

--Firefox Extension Warns users When Others are Using FireSheep (November 8, 2010)
Researchers have released an extension for Firefox that detects when computers on a local area network are using FireSheep, a tool that steals unencrypted cookies from websites. Called BlackSheep, the extension alerts users by displaying a message telling them that someone is using FireSheep and providing the LAN IP address of the FireSheep user. FireSheep was created and released to draw attention to the lack of encryption for session cookies on many popular websites.
http://www.theregister.co.uk/2010/11/08/firesheep_detection_tool/
[Editor's Note (Northcutt): Interesting, dueling plug-ins. For the moment this is quite limited as you can install FireSheep and BlackSheep on the same computer only if you use different Firefox profiles. The duel would be over unencrypted LANs:
http://www.zscaler.com/blacksheep.html ]

The Blacksheep add-on page provides instructions and a video showing it in action.

Also of interest: Microsoft, Intego and other anti-malware providers have added Firesheep to their list of detected 'malware'. This is IMHO a weak move as Firesheep is NOT malware. It is a hacker tool that requires deliberate installation by the hacker and has no user-based malware behavior whatsoever. However, parents or employers would be interested to know about the hacker behavior of their children or employees.

Do NOT consider Blacksheep to be any kind of cure! It is merely a defensive tool when you're STUCK at an unencrypted Wi-Fi spot, such as the Airport or wherever they are too clueless to turn on WPA encryption, or they don't know how, or they're stuck with worthless WEP encryption on their router. Do NOT consider Blacksheep to be thorough defense! It is not. I personally would only use it out of desperation.

The single best defenses against having your cookies stolen and your ID doppelgangered when you're STUCK in an open Wi-Fi spot are to:

1) Never log into anywhere that does not provide end-to-end HTTPS/SSL encryption. An example would be Google's GMail. You can't turn off HTTPS at the GMail site if you try! That's the way it should be everywhere.

2) Remember that eMail provides NO SECURITY apart from possibly an SSL connection to and from your eMail server. Otherwise, everything you email is in the clear for anyone to read. These days I think of some dorky, bored CIA/NEA/FBI human intercepting everything I email and reading it. I even write them little notes from time to time to set off their keyword alarms just to wake them up. Unconstitutional as it is to invade any US citizen's privacy, the Bush League set the precedence for breaking the law anyway, and sadly the Obama administration is goose stepping right along to the same deranged tune. I have further rants on such subjects at my zunipus blog.

The safest thing to do when you're STUCK at an open Wi-Fi spot is to merely browse happy, smiley, shiny websites for fun, not for work, not for financial interactions, not anywhere a hacker could steal your identity. With Firesheep they are you anywhere you go on the web.

Stay safe kids! And watch out for sheep.

;-Derek
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