Feeds

Apple update fixes 'critical' security bug

Rumble in the jungle

Build a business case: developing custom apps

Apple released a security update on Wednesday that fixes multiple vulnerabilities, including a critical flaw in its Safari web browser that created a means for hackers to attack vulnerable systems.

The security bug meant malicious hackers could rename "safe file" extensions stored in ZIP archives, creating a way to trick users into executing malicious shell scripts. The flaw meant malicious applications could appear as a safe file type. If Mac users had left the "Open safe files after downloading" option enabled in Safari then malware would automatically be executed as soon as a user was tricked into visiting a malicious-constructed website. Security researchers produced a proof of concept demo to validate their concerns about the critical flaw.

Apple's update tackles the issue by performing additional download validation so that the user is warned (in Mac OS X v10.4.5) or downloads are not automatically opened (in Mac OS X v10.3.9). The update also addresses 19 other security bugs in Mac OS X involving security flaws in Safari, the PHP Apache module and scripting environment as well as Mail and iChat security bugs, as summarised by Secunia here.

The appearance of the Safari bug, along with a brace of low to no risk worms affecting Mac OS X, spawned a lively debate between Mac fans and security vendors over the impact of the security flap, which disinterested observers judged to be largely academic. ®

The essential guide to IT transformation

More from The Register

next story
Reg man looks through a Glass, darkly: Google's toy ploy or killer tech specs?
Tip: Put the shades on and you'll look less of a spanner
So, Apple won't sell cheap kit? Prepare the iOS garden wall WRECKING BALL
It can throw the low cost race if it looks to the cloud
One step closer to ROBOT BUTLERS: Dyson flashes vid of VACUUM SUCKER bot
Latest cleaner available for world+dog in September
Samsung Gear S: Quick, LAUNCH IT – before Apple straps on iWatch
Full specs for wrist-mounted device here ... but who'll buy it?
Apple promises to lift Curse of the Drained iPhone 5 Battery
Have you tried turning it off and...? Never mind, here's a replacement
Now that's FIRE WIRE: HP recalls 6 MILLION burn-risk laptop cables
Right in the middle of Burning Mains Man week
Apple's iWatch? They cannae do it ... they don't have the POWER
Analyst predicts fanbois will have to wait until next year
Tim Cook in Applerexia fears: New MacBook THINNER THAN EVER
'Supply chain sources' give up the goss on new iLappy
HUGE iPAD? Maybe. HUGE ADVERTS? That's for SURE
Noo! Hand not big enough! Don't look at meee!
prev story

Whitepapers

Top 10 endpoint backup mistakes
Avoid the ten endpoint backup mistakes to ensure that your critical corporate data is protected and end user productivity is improved.
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.
Backing up distributed data
Eliminating the redundant use of bandwidth and storage capacity and application consolidation in the modern data center.
The essential guide to IT transformation
ServiceNow discusses three IT transformations that can help CIOs automate IT services to transform IT and the enterprise
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.