Feeds

QuickTime streaming media exploit targets unpatched bug

Don't RSVP to dodgy RTSP invites

Build a business case: developing custom apps

Hackers have created a proof-of-concept exploit for an Apple QuickTime player streaming media vulnerability.

Release of the exploit on Sunday follows hot on the heels of the public disclosure of the as-yet-unpatched buffer overflow bug, which involves the QuickTime RTSP (Real Time Streaming Protocol) Response Header, on 23 November by Polish security researcher Krystian Kloskowski.

Symantec reports that the exploit might be applied to attack users of the latest version of stand-alone QuickTime players (version 7.3), tricked into opening malicious content on hacker-controlled websites. The same attack only crashes the browser of users of QuickTime browser plugins. Email-based attacks featuring attachments with hostile XML code that open a connection to malicious servers are also possible. This attack requires users to double-click on the malicious QuickTime multimedia attachment to run.

Both attacks rely on initiating a RTSP connection on port 554 leading to the transmission of hostile code. Symantec reports that both IE 6 and 7 (as well as Safari 3 block the attack. However, relying on this as a defence may be unwise. "Attackers may attempt to refine the exploit in the coming days in order to overcome this initial hiccup and work to create a reliable exploit that works on Internet Explorer," Symantec notes.

For the meantime, Firefox users are more exposed to the problem, especially if they've selected QuickTime as the default player for multimedia formats.

Pending a patch from Microsoft, users are advised to restrict outbound connections on port TCP 554 using their firewalls, advice that's probably easier to apply in corporate environments. Home users are warned to avoid any temptation to follow links to untrusted websites.

Symantec's write-up of the flaw, featuring screenshots showing the exploit code at work, can be found here. ®

5 things you didn’t know about cloud backup

More from The Register

next story
PEAK LANDFILL: Why tablet gloom is good news for Windows users
Sinofsky's hybrid strategy looks dafter than ever
Leaked Windows Phone 8.1 Update specs tease details of Nokia's next mobes
New screen sizes, dual SIMs, voice over LTE, and more
POW! Apple smites Macbook Air EFI firmware update borkage
Fruity firm provides digital balm for furious fanbois
Call off the firing squad: HP grants stay of execution to OpenVMS
Startup to take over support for today's Itaniums and beyond
Fiendishly complex password app extension ships for iOS 8
Just slip it in, won't hurt a bit, 1Password makers urge devs
Mozilla keeps its Beard, hopes anti-gay marriage troubles are now over
Plenty on new CEO's todo list – starting with Firefox's slipping grasp
Apple: We'll unleash OS X Yosemite beta on the MASSES on 24 July
Starting today, regular fanbois will be guinea pigs, it tells Reg
Another day, another Firefox: Version 31 is upon us ALREADY
Web devs, Mozilla really wants you to like this one
prev story

Whitepapers

7 Elements of Radically Simple OS Migration
Avoid the typical headaches of OS migration during your next project by learning about 7 elements of radically simple OS migration.
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.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Solving today's distributed Big Data backup challenges
Enable IT efficiency and allow a firm to access and reuse corporate information for competitive advantage, ultimately changing business outcomes.
A new approach to endpoint data protection
What is the best way to ensure comprehensive visibility, management, and control of information on both company-owned and employee-owned devices?