Feeds

TweetDeck XSS flap: Miscreants flash their naughty bits at users

Plus BBC Breaking lives up to its name

Security for virtualized datacentres

Updated Twitter aficionados are being warned to log out of Twitter client TweetDeck and revoke its access to their accounts after an apparent cross-site scripting vulnerability was discovered.

Multiple users – including El Reg's HQ in London, England – reported on Wednesday that they had seen a suspicious pop-up within Tweetdeck that said “XSS in Tweetdeck”.

This exploit was able to execute arbitrary JavaScript in the user's browser – this is very bad as it means a hacker could potentially exploit the flaw to hijack an account, redirect the browser page to somewhere nasty, unleash eldritch digital horrors (and, yes, open pop-ups).

Users should log out of Tweetdeck and revoke the app's access to their accounts from within Twitter (found under Settings > Apps) until the flaw has been fully dealt with.

There's evidence that the flaw was invoked by simply enclosing text in a Tweet in tags – a flaw that last cropped up in 2011 before being papered over.

Twitter's press office had not responded to a request by El Reg for more information at the time of writing.

At the time of writing, the Twitter account for TweetDeck stated that the vulnerability had been fixed, but reports are still flooding into Vulture HQ of the flaw running in the wild. ®

Updated to add

Some enterprising security research has figured out how to craft the XSS vuln into a self-propagating one by forcing Twitter clients to retweet it.

That particular tweet has now been retweeted almost 40,000 times and, just a few minutes ago, propagated onto the BBC's Breaking News account, which has over 10 million followers. Gulp!

Updated (again) to add

After pulling TweetDeck services down, Twitter has verified its security fix and brought the tech back online, promising that the vulnerability has been fixed. ®

Vulnnote

This is one of the various messages that appeared on Vulture Central's screens earlier:

Beginner's guide to SSL certificates

More from The Register

next story
FYI: OS X Yosemite's Spotlight tells Apple EVERYTHING you're looking for
It's on by default – didn't you read the small print?
Edward who? GCHQ boss dodges Snowden topic during last speech
UK spies would rather 'walk' than do 'mass surveillance'
Microsoft pulls another dodgy patch
Redmond makes a hash of hashing add-on
NOT OK GOOGLE: Android images can conceal code
It's been fixed, but hordes won't have applied the upgrade
DEATH by PowerPoint: Microsoft warns of 0-day attack hidden in slides
Might put out patch in update, might chuck it out sooner
'LulzSec leader Aush0k' found to be naughty boy not worthy of jail
15 months home detention leaves egg on feds' faces as they grab for more power
prev story

Whitepapers

Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.