Feeds

Reddit swiftly squishes XSS worm

WTF comment spam script

Choosing a cloud hosting partner with confidence

Popular social news website Reddit has stopped the spread of a cross-site scripting (XSS) worm that hit the site on Monday.

The XSS worm spread via comments on the site, originally from the account of a user called xssfinder.

Reddit failed to filter out JavaScript in some cases, specifically when a user hovered his or her mouse over a link, a factor the miscreants behind xssfinder's account exploited to run a proof of concept attack.

In an apparent test attack, xssfinder posted a comment linked to malicious scripts on a thread called "Guy on a bike in New York 'high fives' people hailing cabs".

Users reading the comment ended up sending massive amounts of spam comments onto other Reddit threads.

Reddit administrators moved in promptly to close the vulnerability and restore order before things got out of hand. Throughout the confusion the site was never down.

xssfinder's account was deleted soon after the attack began, reports Finnish web security firm F-Secure.

F-Secure's full write-up of the attack, including screenshots, can be found here. One of the comment threads about the assault on Reddit can be found here. ®

Internet Security Threat Report 2014

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?
Russian hackers exploit 'Sandworm' bug 'to spy on NATO, EU PCs'
Fix imminent from Microsoft for Vista, Server 2008, other stuff
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
'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
China is ALREADY spying on Apple iCloud users, claims watchdog
Attack harvests users' info at iPhone 6 launch
Carders punch holes through Staples
Investigation launched into East Coast stores
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
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.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.