According to a new security report released today by SANS Institute, TippingPoint and Qualys, the number of vulnerabilities found in applications in the last few years is far greater than the number of vulnerabilities discovered in operating systems. “On average, major organizations take at least twice as long to patch client-side vulnerabilities as they take to patch operating system vulnerabilities. In other words the highest priority risk is getting less attention than the lower priority risk.”

Main findings in the report include:

• Unpatched popular client-side applications put businesses at risk for data theft: PC applications often remain unpatched, compromising these machines to be used to propagate attacks and compromise internal computers. This leaves a window open for hackers to steal critical data, impact network performance and affect business continuity. Examples of these applications include Adobe Acrobat Reader, Microsoft Office and Apple QuickTime.
• The number of Web application attacks is increasing, elevating the threat posed by previously trusted Web sites: Web applications comprise more than 60 percent of the total attack attempts occurring on the Internet. These vulnerabilities are being exploited widely to convert trusted Web sites into malicious servers serving client-side exploits.
• Operating system vulnerabilities are decreasing, but still pose a significant threat to an organization’s security resources: Operating systems (OS) have a lower number of vulnerabilities that can be remotely exploited to become massive Internet worms. The Conficker/Downadup is the exception and represents a major hole in many organizations’ security strategy. Attacks on Microsoft OS were dominated by Conficker/Downadup worm variants. For the past six months, over 90 percent of the attacks recorded for Microsoft targeted the buffer overflow vulnerability described in the Microsoft Security Bulletin MS08-067.
• A growing number of vulnerability researchers is causing a backlog of unpatched software and a greater risk that these will be exploited. The number of people discovering zero day vulnerabilities is growing fast, yielding a growing number of vulnerabilities that remain unpatched—some for as long as two years. This lag time in patching increases the chance of hackers creating exploits targeting those vulnerabilities.

The full report can be downloaded from SANS website at http://www.sans.org/top-cyber-security-risks/.