Adobe will try to stymie some Flash attacks with new pop-up
Flash 11.6 to block automatic play of content in docs created with Office 2007 and older
Computerworld - Adobe last week announced it would add a new security feature to Flash Player in an attempt to block some of the exploits hackers are hiding inside older Microsoft Office documents.
The new feature -- a pop-up warning -- will be triggered when Flash Player detects Flash content inside documents created with Office 2007 and earlier versions.
Currently, Flash content embedded in documents crafted with Office 2007 and its older siblings, Office 2003 and Office XP, executes automatically on Windows PCs. That's a characteristic hackers have long abused, something Adobe acknowledged.
"Since...November 2010, the most common Flash Player zero-day attack vector has been malicious Flash content embedded in Microsoft Office documents and delivered via email," said Peleus Uhley, a platform security strategist, in a Feb. 7 post to the Adobe Secure Software Engineering Team (ASSET) blog.
Uhley also noted that the latest round of zero-day vulnerabilities in Flash -- ones criminals are already using by the time bugs are patched -- were being exploited with that tactic.
Adobe updated Flash Player on Thursday to fix the critical flaws.
To make Office document-based attacks more difficult, documents generated with Office 2007, 2003 and XP -- Microsoft dropped the latter from its support list in mid-2011 -- will no longer auto-execute Flash content. Instead, when documents created with those suites are opened, Flash will display a dialog recommending the user not let the content play.
Users can select a second option and play the Flash content if they're certain the document came from a trusted source.
Flash won't bother showing the pop-up for documents generated with newer versions of Office, including Office 2010 and the just-released Office 2013, because those suites sport a sandbox that prevents automatic play of Flash content.
Microsoft calls its Office sandbox "Protected View," a feature introduced in Office 2010 and continued in Office 2013. In both suites, Word, Excel, and PowerPoint files are opened in a sandboxed, or isolated, instance of the application when the file was downloaded from the Internet or opened as an Outlook email attachment.
Microsoft did not back-port the Protected View sandbox to older editions of Office.
Adobe's Uhley did not promise that the new dialog would stop Flash exploits embedded in Office documents, but was instead simply crossing his fingers. "We've seen these types of user interface changes lead to shifts in attacker behavior in the past, and are hopeful this new capability will be successful in better protecting Flash Player users from attackers leveraging this particular attack vector as well," he said.
Utley did not provide a timetable for when the security pop-up feature would hit Flash Player, saying only that it would appear in the next "feature release" of the software, "which is currently in beta."
Flash Player 11.6 is the version now in beta testing.
Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at @gkeizer, on Google+ or subscribe to Gregg's RSS feed . His email address is firstname.lastname@example.org.
Read more about Malware and Vulnerabilities in Computerworld's Malware and Vulnerabilities Topic Center.
- 15 Non-Certified IT Skills Growing in Demand
- How 19 Tech Titans Target Healthcare
- Twitter Suffering From Growing Pains (and Facebook Comparisons)
- Agile Comes to Data Integration
- Slideshow: 7 security mistakes people make with their mobile device
- iOS vs. Android: Which is more secure?
- 11 sure signs you've been hacked
- The Threat Landscape Hardly a day goes by without the discovery of a new cyberthreat somewhere in the world! But how do you keep up with...
- Security for Virtualization In the rush to implement virtualization, security has become second. So while the business benefits are clear, the risks are less well documented...
- Pay-as-you-Grow Data Protection: IBM Tivoli's Full-featured Data Protection Suite for Small to Medium Businesses IBM Tivoli Storage Manager Suite for Unified Recovery gives small and medium businesses the opportunity to start out with only the individual solutions...
- Streamline Data Protection with IBM Tivoli Storage Manager Operations Center IBM Tivoli Storage Manager (TSM) has been an industry-standard data protection solution for two decades. But, where most competitors focus exclusively on Backup...
- Meg Whitman presents Unlocking IT with Big Data During this Web Event you will hear Meg Whitman, President and CEO, HP discuss HAVEn - the #1 Big Data platform, as well...
- The New Way to Work Knowledge Vault This Knowledge Vault focuses on how, in today's increasingly virtual world, it's more important than ever to engage deeply with employees, suppliers, partners,... All Malware and Vulnerabilities White Papers | Webcasts