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Locks and Security News: your weekly locks and security industry newsletter
17th April 2019 Issue no. 453

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Tenable has discovered vulnerabilities in PremiSys access control system

Today's modern enterprise has an extremely complex digital infrastructure comprised of both traditional and modern assets - from workstations and on-premises servers to building security systems and smart devices.

This level of complexity has made it increasingly difficult for security teams to establish secure networks in dynamic enterprise environments.

The PremiSys zero-days are a stark reminder that the mass adoption of emerging technologies has quickly blurred the lines between physical and digital security. This discovery comes just a few months after Tenable Research found another zero-day flaw - dubbed Peekaboo - in global video surveillance software.

PremiSys technology allows customers to grant and restrict access to doors, lockdown facilities and view integrated video. Once exploited, the most severe flaw would give cybercriminals administrator access to the entire badge system database via the PremiSys Windows Communication Foundation (WCF) service endpoint. Using the administrator privileges, attackers can perform a variety of actions like downloading the full contents of the system database, modifying its contents or deleting users.

"The digital era has brought the cyber and physical worlds together thanks, in part, to the adoption of IoT. An organisation's security purview is no longer confined by a firewall, subnets, or physical perimeter - it's now boundaryless. This makes it critically important for security teams to have complete visibility into where they are exposed and to what extent," said Renaud Deraison, co-founder and chief technology officer, Tenable. "Unfortunately, many manufacturers in the new world of IoT don't always understand the risks of unpatched software, leaving consumers and enterprises vulnerable to a cyber attack. In this case, organisations that use PremiSys for access control are at a huge risk as patches are not available. Beyond this particular issue, the security industry needs to have a wider dialogue about embedded systems and their maintainability over time. The complexity of the digital infrastructure is increasing, and so is its maintenance. We need vendors to be committed to delivering security patches in a timely manner, and in a fully automated way. Tenable Research is committed to cooperating with willing vendors on coordinated disclosures to help ensure consumers and organisations alike are secure. Industry collaboration is key to helping customers manage, measure and reduce their exposure."

Tenable Research disclosed the vulnerabilities (CVE-2019-3906, CVE-2019-3907, CVE-2019-3908, CVE-2019-3909), which affect version 3.1.190, to IDenticard following standard procedures outlined in its vulnerability disclosure policy. The team made multiple attempts to contact the vendor. On November 19, Tenable informed CERT of the vulnerability. To reduce the risk of compromise, users should segment their network to ensure systems like PremiSys are isolated from internal and external threats as much as possible.

For more information, read the Tenable Research Advisory blog post.

About Tenable
Over 24,000 organisations around the globe rely on Tenable to understand and reduce cyber risk. As the creator of Nessus(r), Tenable extended its expertise in vulnerabilities to deliver Tenable.io, the world's first platform to see and secure any digital asset on any computing platform. Tenable customers include more than 50 percent of the Fortune 500, more than 25 percent of the Global 2000 and large government agencies. Learn more at www.tenable.com

9th January 2019




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