1 post • joined 23 Dec 2007
Flash != Evil
I really would like to hear details of the 'vulnerability' just so I can begin checking our code and performing an assessment of wether or not this is a credible and realistic threat to the security of our customers.
In the past, many vulnerabilities have been reported on the Flash player, but most of them follow a similar kind of theme - the rogue SWF file must be created with third party authoring tools, and or modified in a hex editor, in order to put the malicious code in there to begin with. In addition, due to the security sandbox and crossdomain restrictions, it needs to be downloaded from your site anyway. So, its perfectly possible for a SWF to wreak havoc on a user's machine, the only caveat is that someone within a company, with access to the web servers and source code, would need to have created it in the first place - something I'm sure is indicative of a larger problem!
Oddly, most non Flash/web developers tend not to see it that way - I have a beautiful MP3 of a conversation I had with one of our 'Security' people who just consistently ranted on about undisclosed vulnerabilities as a reason not to use Flash in a project.
In my years of working with the web and the Flash platform, I have not yet seen a single workable exploit that could present a credible threat to the majority of Flash user's on the web, not without the user or the site already being compromised in some manner.
The only somewhat grey area is where Flash is used for online advertising, but you will find that most of the main publishers out there are aware of this and perform some level of code review on ads before they go live - I work for a bank and we don't run any 3rd party adverts without seeing the sourcecode and decompiling any SWF assets provided.
Really guys, the Flash platform isn't the cloud of evil you are making it out to be. Granted, it has been used for some really annoying things in the past, but used right, it can really help to deliver a friendly, usable and engaging user experience. In addition, in Adobe's hands we have seen it become more open than ever before - Flex, AMF, Tamarin, all released as open source in the past year. I'd be surprised if this trend does not continue.
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