Feeds

New code-execution bug found in Windows and 40 apps

When 'safe' files aren't

Seven Steps to Software Security

Microsoft Windows and about 40 applications that run on it are vulnerable to remote-code execution attacks that are "trivial" to carry out, a noted security researcher warned Wednesday.

The flaw involves the way Windows loads "safe" file types from remote network locations, and is almost identical to one that Apple excised in iTunes last week, H D Moore, CSO and chief architect of the Metasploit project, told The Register. He said the bug is “trivial” to remotely exploit, but wasn't authorized to provide additional details about techniques or other vulnerable applications.

According to a more detailed advisory for the iTunes fix, the “binary planting” vulnerability allowed attackers to execute malicious code on Windows machines by getting the media player to open a file located on the same network share as a maliciously designed DLL file.

“All a remote attacker has to do is plant a malicious DLL with a specific name on a network share and get the user to open a media file from this network location in iTunes – which should require minimal social engineering,” the advisory, which was written by ACROS Security, stated.

“Since Windows systems by default have the Web Client service running – which makes remote network shares accessible via WebDAV – the malicious DLL can also be deployed from an Internet-based network share as long as the intermediate firewalls allow outbound HTTP traffic to the Internet.”

Microsoft said in a statement it is investigating the report.

Moore said users can protect themselves against attacks by blocking outbound SMB connections on ports 445 and 139 and on WebDAV. That will stop attacks that originate over the internet, but users may still be susceptible to LAN-based attacks where an attacker has planted malicious DLLs on a network share. In that respect, it's similar to workaround advice given for the Windows shortcut flaw that Microsoft patched earlier this month. ®

This article was updated to include comment from Microsoft.

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
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
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
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.