Feeds

µTorrent silently fixes long-standing zero-day vuln

No fanfare here

Remote control for virtualized desktops

Popular BitTorrent client µTorrent has quietly patched a vulnerability that created a means for hackers to load malware onto the PCs of file-sharers simply by persuading them to open a poisoned Torrent.

The Hollywood-dream bug stemmed from a stack-based buffer overflow vulnerability and offered far more potential for mischief than either salted (empty or impossible to play) files or media files that attempt to induce users to install fake codecs (often contaminated with malware) once users attempt to play downloaded content.

The vulnerability has been confirmed in version 1.7.7 of µTorrent. Earlier versions may also be buggy. News of the bug emerged in a posting by Rhys Kidd to a security mailing list on Monday. He claims that the flaw had been present as a zero-day vulnerability in the software for the last two years.

BitTorrent Mainline version six and beyond are also vulnerable because BitTorrent, Inc. makes use of µTorrent source code, he adds. The two software packages make up over 18.8 per cent on the installed P2P client base, creating plenty of scope for shenanigans even though the bug would have been far from straightforward to misuse.

"Reliable exploitation is difficult although not impossible," notes Kidd in a detailed advisory on the bug.

Fortunately a major new version of µTorrent, released earlier this month, squashes the bug, even if release notes fail to mention this point. Version 1.8 RC7 of the software silently patched the flaw, according to security notification service Secunia, which advises users to update to version 1.8.0 of µTorrent. BitTorrent is also vulnerable but yet to deliver a patch, Secunia reports. ®

Remote control for virtualized desktops

More from The Register

next story
Webcam hacker pervs in MASS HOME INVASION
You thought you were all alone? Nope – change your password, says ICO
You really need to do some tech support for Aunty Agnes
Free anti-virus software, expires, stops updating and p0wns the world
Meet OneRNG: a fully-open entropy generator for a paranoid age
Kiwis to seek random investors for crowd-funded randomiser
USB coding anarchy: Consider all sticks licked
Thumb drive design ruled by almighty buck
Attack reveals 81 percent of Tor users but admins call for calm
Cisco Netflow a handy tool for cheapskate attackers
Privacy bods offer GOV SPY VICTIMS a FREE SPYWARE SNIFFER
Looks for gov malware that evades most antivirus
Patch NOW! Microsoft slings emergency bug fix at Windows admins
Vulnerability promotes lusers to domain overlords ... oops
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
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.
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.
Choosing a cloud hosting partner with confidence
Download Choosing a Cloud Hosting Provider with Confidence to learn more about cloud computing - the new opportunities and new security challenges.
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.