Facebook Google Plus Twitter LinkedIn YouTube RSS Menu Search Resource - BlogResource - WebinarResource - ReportResource - Eventicons_066 icons_067icons_068icons_069icons_070

Detect The Latest OpenSSL Vulnerabilities Using Active and Passive Scanning

Tenable's products dig deep to uncover the latest round of OpenSSL vulnerabilities.

Note: Passive Vulnerability Scanner (PVS) is now Nessus Network Monitor. To learn more about this application and its latest capabilities, visit the Nessus Network Monitor web page.

Several new vulnerabilities were disclosed in OpenSSL yesterday (yes the very same one which led to the Heartbleed vulnerability), along with updates for the popular open-source SSL library. One of the vulnerabilities is fairly serious, as it could allow for Man-In-The-Middle attacks under certain circumstances. Interesting notes about this new vulnerability include:

  • The most serious vulnerability is CVE-2014-0224, which deals with how OpenSSL handles 'ChangeCipherSpec' messages in the SSL protocol, essentially tricking the client and server to communicate without encryption
  • If we make a direct comparison to the Heartbleed vulnerability, the "ChangeCipherSpec" flaw is more difficult to exploit, as the attacker must be able to intercept communications between the client and the server
  • Both client and server must be vulnerable in order for the attack to work (e.g. fixing just the client-side software fixes the issue)
  • Modern web browsers (For example IE, Google Chrome, Mozilla Firefox, Safari) on desktops are not vulnerable as they are not using the OpenSSL libraries. However, Chrome for Android does use OpenSSL, and Google has released an updated version which fixes the vulnerability.
  • This vulnerability is yet another tool for attackers targeting SSL and attempting to intercept communications. Researchers state this particular vulnerability has existed in the OpenSSL code since 1998.

New versions of the OpenSSL library are now available (including OpenSSL 0.9.8za, OpenSSL 1.0.0m and OpenSSL 1.0.1h).

Tenable has released several new updates for multiple products including Nessus and the Passive Vulnerability Scanner to help customers detect this vulnerability:

  • Nessus Plugin 74326 has been released and accurately identifies vulnerable OpenSSL servers.

  • An updated version Nessus UI has been pushed out to customers and includes an updated "Heartbleed" detection wizard which also enables plugin 74326
  • The Passive Vulnerability Scanner plugin 8253 was added yesterday to detect OpenSSL < 0.9.8za / < 1.0.0m / < 1.0.1h Multiple Vulnerabilities
  • Several popular Linux and UNIX distribution's local patch checks have been released to detect the vulnerability locally and will continue to be updated
  • Nessus Enterprise Cloud was updated yesterday (including the new plugin and Nessus UI policy wizard)

Tenable customers can reference the Discussion Forum thread titled How to test the OpenSSL ChangeCipherSpec Vulnerability with Nessus (and Nessus Enterprise / Nessus Enterprise Cloud) to explore this vulnerability further and ask questions of our experts on this topic. Please visit Tenable's Support Portal for technical support related to detecting the latest OpenSSL vulnerability.

Subscribe to the Tenable Blog

Subscribe
Try for Free Buy Now

Try Tenable.io

FREE FOR 60 DAYS

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Sign up now and run your first scan within 60 seconds.

Buy Tenable.io

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

65 assets

$2,190.00

Buy Now

Try for Free Buy Now

Try Nessus Professional Free

FREE FOR 7 DAYS

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy Nessus Professional

Nessus® is the most comprehensive vulnerability scanner on the market today. Nessus Professional will help automate the vulnerability scanning process, save time in your compliance cycles and allow you to engage your IT team.

Buy a multi-year license and save

Try for Free Buy Now

Try Tenable.io Web Application Scanning

FREE FOR 60 DAYS

Enjoy full access to our latest web application scanning offering designed for modern applications as part of the Tenable.io platform. Safely scan your entire online portfolio for vulnerabilities with a high degree of accuracy without heavy manual effort or disruption to critical web applications. Sign up now and run your first scan within 60 seconds.

Buy Tenable.io Web Application Scanning

Enjoy full access to a modern, cloud-based vulnerability management platform that enables you to see and track all of your assets with unmatched accuracy. Purchase your annual subscription today.

5 FQDNs

$3,578.00

Buy Now

Try for Free Contact Sales

Try Tenable.io Container Security

FREE FOR 60 DAYS

Enjoy full access to the only container security offering integrated into a vulnerability management platform. Monitor container images for vulnerabilities, malware and policy violations. Integrate with continuous integration and continuous deployment (CI/CD) systems to support DevOps practices, strengthen security and support enterprise policy compliance.

Buy Tenable.io Container Security

Tenable.io Container Security seamlessly and securely enables DevOps processes by providing visibility into the security of container images – including vulnerabilities, malware and policy violations – through integration with the build process.

Learn More about Industrial Security