Adobe bolsters Reader, Acrobat XI security
Updated Adobe Reader and Acrobat offer a better sandbox and new tools that can can block more attacks, Adobe says
IDG News Service - The recently launched Adobe Reader and Adobe Acrobat XI come with new security features and an improved sandbox that will make the products harder to attack and exploit, according to Adobe.
The sandboxing feature known as the Protected Mode that was first introduced in Adobe Reader X proved successful at mitigating traditional PDF exploits. The technology works by isolating certain Adobe Reader operations in a strictly controlled environment and makes it very hard for attackers to write and execute malicious code on a system after exploiting a vulnerability in the product.
"Since we added sandbox protection to Adobe Reader and Acrobat, we have not seen any exploits in the wild that break out of the Adobe Reader and Acrobat X sandbox," Priyank Choudhury, a security researcher within Adobe's Secure Software Engineering Team, said Wednesday in a blog post.
However, this doesn't mean that the Adobe Reader X sandbox can prevent all types of attacks. For example, the sandbox was primarily designed to restrict write operations, not read ones, which means that potential attackers can steal sensitive information from a system after exploiting an Adobe Reader X vulnerability.
That's no longer a problem in Adobe Reader XI, Choudhury said. "In Adobe Reader XI, we have added data theft prevention capabilities by extending the sandbox to restrict read-only activities to help protect against attackers seeking to read sensitive information on the user's computer."
"I've warned before that Adobe Reader X's sandbox is a write sandbox, e.g. that reading is still fully permitted and thus still allows stealing of information," Didier Stevens, a security researcher well known for his PDF security work, said Thursday via email. "I tested that."
Stevens assumes that the new sandbox model in Adobe Reader XI prohibits the reading of files and registry keys, but hasn't had a chance to test it yet. If that's the case, it would be an important improvement, he said.
The new version of Adobe Reader also comes with a Protected View mode that further strengthens the sandbox by creating a separate window station -- a separate securable clipboard and desktop -- for the PDF viewing process. This function is designed to block so-called screen-scraping attacks in which one application reads data from the display output of a different program running on the same desktop.
Adobe Acrobat already had a Protected View mode that has been enhanced in the new version. "Protected View behaves identically for Adobe Reader and Acrobat, whether viewing PDF files in the standalone product or in the browser," Choudhury said.
The support for Address Space Layout Randomization (ASLR), a memory-based anti-exploitation technology, has also been improved in the new Adobe Reader and Acrobat versions.
- Path Selection Infographic Path Selection Infographic
- Hyperconvergence Infographic A wide range of observers agree that data centers are now entering an era of "hyperconvergence" that will raise network traffic levels faster...
- Preparing Your Infrastructure for the Hyperconvergence Era From cloud computing and virtualization to mobility and unified communications, an array of innovative technologies is transforming today's data centers.
- Increase IT Performance from the Enterprise to the Cloud with WAN Optimization Massive consolidation and data mobility, enabled by virtualization, have radically altered how we build servers, design applications, and deploy storage for the emerging...
- Live Webcast
Transforming Finance, Procurement and Supply Chain Effectiveness with Cross-Functional Analytics
Date: May 6th, 2014
Time: 1 PM EDT
Attend this Webcast to find out how Oracle's packaged analytic applications enable line-of-business managers to examine all...
- Video Stream Quality Impacts Viewer Behavior This scientific white paper, using statistical data from Amakai's streaming network, analyzes how changes in video quality cause changes in viewer behavior.
- Service-Enabling CICS Applications: Best Practices This informative webcast provides an informed, thorough look into CICS service-enablement options and how they can affect your environment. You'll learn how to... All Applications White Papers | Webcasts