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Enterprises Won't Adopt Adobe Reader X Any Time Soon

Adobe Reader X's Protected Mode sandbox significantly improves security, yet 56% of enterprise installations ran vulnerable older versions. Organizations lack skills for large-scale non-Microsoft upgrades, users see no feature benefit, and browsers are adding native PDF viewing—reducing upgrade incentives.

Vulnerabilities in Adobe Reader are often pursued as part of both targeted and mass-scale exploitation campaigns. Fortunately, version X of Adobe Reader, released in the fall of 2010, significantly improves the product’s ability to withstand such attacks by incorporating a Protected Mode sandbox. From a security perspective, it makes sense to deploy Reader X right away; yet, I expect it will be years before enterprises manage to upgrade from the older versions of the product.

The majority of enterprise environments appear to be running vulnerable versions of Adobe Reader. Zscaler highlighted the dire situation in their State of the Web report:

“Adobe reader is installed in 83% of all enterprise browsers, and is out of date in 56% of those installations. It’s no surprise then that the increasingly popular Blackhole Exploit kit includes a variety of payloads designed to target recent Adobe Reader vulnerabilities.”

For a historical perspective on the vulnerabilities and exploits related to Adobe Reader, take a look at Malware Tracker’s PDF Current Threats. The good news is that Reader X’s sandbox is designed to mitigate the majority of the risks associated with these vulnerabilities. Then why won’t enterprises roll out Reader X any time soon across a large scale? Three reasons:

For these reasons, many enterprises are unlikely to have an incentive to roll out Adobe Reader X soon. Why bother with the headache and the risk of the deployment causing problems if the users don’t care about getting the new version? That’s too bad, because the faster Reader X displaces older versions of the product, the safer we will all be online.

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Lenny Zeltser

References: Thanks to Mila Parkour for a pointer to Malware Tracker’s PDF Current Threats page. Thanks to Dancho Danchev for mentioning Zscaler’s State of the Web report.

About the Author

Lenny Zeltser is a cybersecurity executive with deep technical roots, product management experience, and a business mindset. As CISO at Axonius, he leads the security and IT program, focusing on trust and growth. He is also a Faculty Fellow at SANS Institute and the creator of REMnux, a popular Linux toolkit for malware analysis. Lenny shares his perspectives on security leadership and technology at zeltser.com.

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