Feeds

Redmond probes new IE 8 vulnerability

Zero day appeared on US Dept of Labor site

Seven Steps to Software Security

Microsoft has confirmed a bug in Internet Explorer 8, CVE-2013-1347, which exposes user machines to remote code execution.

In an advisory, Microsoft says the vulnerability “exists in the way that Internet Explorer [accesses] an object in memory that has been deleted or has not been properly allocated.”

That, in turn, opens the door to memory corruption and remote code execution in the current user context.

According to this blog post by Eric Roman: “A use-after-free condition occurs when a CGenericElement object is freed, but a reference is kept on the document and used again during rendering, an invalid memory that’s controllable is used, and allows arbitrary code execution under the context of the user.”

That post also notes that an exploit has been seen in the wild. Last week, security companies AlienVault and Invincea reported that a site on a sub-domain of the US Department of Labor was serving malware, and Roman's blog post states that it was serving up an attack on the CVE-2013-1347 vulnerability.

According to Invincea, the Department of Labor exploit was installing the Poison Ivy backdoor Trojan.

The venerable version might be using a walking frame to get around, but according to W3counter.com it's still the second-most popular attack vector version of IE in the wild.

Microsoft is considering whether to issue an out-of-cycle patch for the vulnerability. ®

Mobile application security vulnerability report

More from The Register

next story
Yorkshire cops fail to grasp principle behind BT Fon Wi-Fi network
'Prevent people that are passing by to hook up to your network', pleads plod
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
BMW's ConnectedDrive falls over, bosses blame upgrade snafu
Traffic flows up 20% as motorway middle lanes miraculously unclog
LibreSSL RNG bug fix: What's all the forking fuss about, ask devs
Blow to bit-spitter 'tis but a flesh wound, claim team
Attackers raid SWISS BANKS with DNS and malware bombs
'Retefe' trojan uses clever spin on old attacks to grant total control of bank accounts
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Reducing security risks from open source software
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.