Feeds

JavaScript hijacking - a new exploit, or not?

Have you heard it all before?

  • alert
  • submit to reddit

The essential guide to IT transformation

I've had an email comment on my JavaScript Hijacking piece to the effect that everyone knows that you do your input validation on the server and that data you send down in JavaScript or in HTML is unsafe - so this really isn't a new exploit.

Well, that first part is true enough, but I disagree with the second. However, Brian Chess is about to put up a JavaScript Hijacking FAQ in the Fortify Software site, so I thought (in the best journalistic tradition) I'd nick his comment on this point.

"While it is true that the client can see any messages the server sends, this is not the scenario where JavaScript Hijacking applies. JavaScript Hijacking involves a vulnerable website, a victim with a web browser, and a malicious website. The malicious website can use JavaScript hijacking to steal the victim's data from the vulnerable website. Web browsers prevent this in most cases, but the browser makers did not anticipate the use of JavaScript to communicate confidential data," he says.

I'll also note that Fortify's advisory, referenced in the original article, explains this new exploit in great detail and, I think, makes clear what is new about it. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
Apple promises to lift Curse of the Drained iPhone 5 Battery
Have you tried turning it off and...? Never mind, here's a replacement
China: You, Microsoft. Office-Windows 'compatibility'. You have 20 days to explain
Told to cough up more details as antitrust probe goes deeper
Linux turns 23 and Linus Torvalds celebrates as only he can
No, not with swearing, but by controlling the release cycle
Scratched PC-dispatch patch patched, hatched in batch rematch
Windows security update fixed after triggering blue screens (and screams) of death
This is how I set about making a fortune with my own startup
Would you leave your well-paid job to chase your dream?
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.