Is your WiFi sick?

Posted: February 27, 2014 in Uncategorized
Tags: , , , , ,

Windows users learned (the hard way) a long time ago that their PC could be infected with viruses, Trojan horses, worms and the like without their knowledge. Anti-virus vendors have made a mint off of capitalizing on the concerns that grew from that basic fact. Eventually, Microsoft decided it was in their best interest to make available free security tools that could help limit the threat and mitigate some of the PR hits their brand kept taking with each new outbreak of malware.

As discussed in this blog before, there is nothing about Linux, UNIX or OS X that makes those platforms inherently immune to virus attacks either, although, the sheer number of known malware instantiations is lower. Mobile devices, which are, after all, nothing more than miniaturized computers that also happen to have built-in cameras, MP3 players and telephony features are vulnerable as well. In fact, the first mobile malware was first spotted 10 years ago, if you can believe it. Clearly, none of this is a new problem.

Well, guess what? You know that WiFi access point you installed in your home a few years back or the ones you never see but freely use at the local coffee shop could be infected as well? How about the possibility that the wireless in your doctor’s office waiting area is as sick as the patients sitting next to you?

Yep, malware for WiFi is the latest unfortunate turn of the technological crank and, once again, we shouldn’t be surprised. Routers and access points are, after all, just special purpose computers and, in most cases, ones that have never been patched since the day they were installed.

One recent study found that:

Using the top 50 selling home routers for sale on Amazon, the firm detected software vulnerabilities in three quarters with a third of these having publically documented flaws open for any attacker to exploit. Common problems included vulnerable management interfaces and dodgy authentication.

So that’s 75% of the most popular devices are vulnerable. Great. But the hits just keep coming

Researchers at the University of Liverpool have shown for the first time that WiFi networks can be infected with a virus that can move through densely populated areas as efficiently as the common cold spreads between humans. 

The team designed and simulated an attack by a , called “Chameleon”, and found that not only could it spread quickly between homes and businesses, but it was able to avoid detection and identify the points at which WiFi access is least protected by encryption and passwords.

So let’s review…

  • WiFi access points can be attacked
  • Most have never been patched
  • Most are vulnerable to exploitation
  • Some could be attacked by malware that spreads from access point to access point

I don’t know that WiFi access point anti-virus tools are waiting just around the corner.  However, I do know that it would be a good idea to take another look at the access points you can control and review the security settings and update the firmware. Don’t say I didn’t warn you …

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Comments
  1. Mike says:

    Jeff, thanks for the warning. How can we find out which WiFi routers are not on the list of vulnerable devices?

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