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Three-quarters of Organizations are Still Vulnerable to Log4Shell

Tenable says organizations still need to be vigilant in remediating Log4Shell nearly a year after the bug's discovery.

November 30, 2022 Zachary Comeau Leave a Comment

Log4Shell, Log4j, CVE-2021-44228
stock.adobe.com/Jaiz Anuar

New research from vulnerability management software company Tenable finds that nearly three-quarters of organizations remain vulnerable to the Log4Shell vulnerability as of Oct. 1, nearly a full calendar year after the critical bug in the widely used Java logging tool Log4j was discovered.

When Log4Shell was discovered in December 2021, Tenable found that one in 10 assets were vulnerable. Those assets included a wide range of servers, web applications, containers and IoT devices. In October, analysis showed improvements, with 2.5% of assets vulnerable.

However, nearly one-third of those assets had recurrences of Log4Shell after the vulnerability was fully remediated.

Despite that progress, just 28% of organizations report having fully remediated Log4Shell as of the start of October. While that is a 14-point improvement from what Tenable found in May, 29% of vulnerable assets saw Log4Shell reintroduced after full remediation.

Over half of organizations were vulnerable to Log4Shell during the time period of Tenable’s study, which the company says underscores the pervasive nature of Log4J and the necessary ongoing efforts to remediate the bug even if full remediation was already achieved.

The Columbia, M.D. company’s analysis also suggests that some industries are in better shape than others, with engineering, legal services, financial services, non-profit and government all above 30% fully remediated. However, critical infrastructure organizations–which the U.S. government has warned about attacks–are just 28% fully remediated.

Organizations in North America are leading the way for fully Log4Shell remediation at 28%, with Europe, Middle East and Africa closely behind at 27%. Organizations in Asia-Pacific and Latin America didn’t do as well, with full remediation at 25% and 21%, respectively.

North America also leads in partial remediation at 90%, with no other geographic region above 85%.

Bob Huber, chief security officer at Tenable, says in a statement that full remediation of Log4Shell is very difficult due to Log4j’s pervasiveness, and organizations should not take a one-and-done approach.

“While an organization may have been fully remediated at some point, as they’ve added new assets to their environments, they are likely to encounter Log4Shell again and again,” Huber says. “Eradicating Log4Shell is an ongoing battle that calls for organizations to continually assess their environments for the flaw, as well as other known vulnerabilities.”

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Tagged With: Log4j, Log4Shell, Tenable, Vulnerability Management

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