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Flash bang wallop (again)

27 January 2015

Unfortunately, Adobe's Flash has become an integral part of the web as we know it.

I say "unfortunately" because this piece of software has been the focus of countless hacking attacks over the years and Adobe's reputation for distributing incredibly vulnerable code remains unchallenged.

As if to prove the point, yet another emergency patch has just been released, as documented in this BBC story

So why are web developers so infatuated and addicted to infecting their pages with Flash?

One of the major uses of Flash is to create dynamically loading media players, so as to deliver video to webpages.

This may have been the only alternative a couple or three years ago but this is 2015. Have our web designers not heard of HTML5?

For fancy menuing and other "look how clever this web designer is" features there are JavaScript, DHTML and other far less risky technologies available to anyone with half a brain - yet far too many websites still rely heavily on Flash.

Of course I have enabled Firefox's ability to block Flash apps from running and the only site which I actually give permission for it to run is YouTube -- mainly because I sometimes need the functionality that it delivers on that site.

If you explore the history of security vulnerabilities on the Net you'll find that the top offenders (outside of browser and OS vulnerabilities) are Adobe's Acrobat reader and Flash -- yet these remain defacto standards almost everywhere.

Is it just that we enjoy the familiar feel of a "kick me" sign on our backs or something?

In the latest reported vulnerability it seems that Flash-based ads have been used to help deliver ransomware to PCs. This code then encrypts a victim's hard drive and demands the payment of a small (but significant) sum before the data will be restored. This is nasty stuff.

I'd be very interested to hear what readers' strategies are for dealing with the evil that is Adobe's crappy, insecure PDF reader and Flash. Do you simply ban these things from your computer? Do you use "compatible" applications from other sources? Or do you carefully control exactly when these bits of code are allowed to run?

And how long before we can banish these things from our computers forever, without compromising the functionality of the websites on which we rely?

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