Update January 31, 2020: Client testing is now available at clienttest.ssllabs.com.

Update January 15, 2020: Detection dashboard now available.

Today, Microsoft released patch for CVE-2020-0601, aka Curveball, a vulnerability in windows “crypt32.dll” component that could allow attackers to perform spoofing attacks. This was discovered and reported by National Security Agency (NSA) Researchers. The vulnerability affects Windows 10 and Windows Server 2016/2019 systems.

This is a serious vulnerability and patches should be applied immediately. An attacker could exploit this vulnerability by using a spoofed code-signing certificate, meaning an attacker could let you download and install malware that pretended to be something legit, such as software updates, due to the spoofed digital signature. Examples where validation of trust may be impacted include:

• HTTPS connections
• Signed files and emails
• Signed executable code launched as user-mode processes

Exploits/PoC:

There are no reports of active exploitation or PoC available in public domain at this point of time. However, per NSA advisory “Remote exploitation tools will likely be made quickly and widely available.”

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Recent reports this year revealed nearly 1 million computer systems are still vulnerable and exposed to BlueKeep in the wild. These systems are still easy targets for an unauthenticated attacker (or malware) to execute code leveraging this patchable vulnerability. Because so many systems are still vulnerable, Qualys has added its BlueKeep dashboard directly into the product, so you can more easily track and remediate this vulnerability.

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This release of Qualys Patch Management version 1.3 includes new features, highlights as follows.

• Patch Scheduling enhancement: “No Patch Window” – When scheduling a patch deployment, instead of having to specify a Patch Window time frame, you can select “None”.  This will allow a job to continue to run until all of the Assets in the job are able to perform the deployment, instead of timing out at the end of the Patch Window. This is especially useful in situations where you have an emergency patch that absolutely must be installed as soon as possible.  If an Asset is offline when the job is set to run, it will run the job once the  Cloud Agent checks in again.
• Suppress reboot – You can choose to suppress the reboot notification and subsequent reboot after a patch deployment.  This feature allows you to deploy patches, and then use another mechanism to restart the Assets.  Any Asset that has the reboot suppressed will still report the Reboot Required flag to the platform.
• Create Job in “Enabled” state – Previously, you would create a Deployment Job in a Disabled state, and then Enable the job from the Jobs screens.  Now, you can choose to have the Job saved in an Enabled state, reducing the amount of clicks required to start a Job.
• Opportunistic Patch Download – When creating a Job, you can now opt to have the Cloud Agent download the patches in the background before the job runs, reducing the amount of time the job takes to complete.

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