Black Arrow Cyber Advisory 19/05/2022 – VMware provides patches for critical vulnerabilities in multiple product lines. CISA advise to disconnect systems if they cannot be patched

Executive Summary

VMware is a large supplier of virtualisation products which are used to run a variety of different services. They announced on 18/05/2022 that updates have been released for multiple products in their range to address two different vulnerabilities. The United States Cybersecurity and Infrastructure Security Agency (CISA) are advising US Civilian Government agencies to patch affected products, or disconnect those that cannot be patched by 5PM EDT on 23/05/2022.

What’s the risk to me or my business?

As VMware are one of the primary suppliers of virtual infrastructure, it is highly likely that some business services will be hosted on machines running VMware software. One of the vulnerabilities would allow an attacker with network access to the user interface of an affected product to obtain administrative access without the need to authenticate. As business services may be hosted on VMware infrastructure, this could impact Confidentiality, Integrity, or Availability for these services.

What can I do?

As patches have been released, it is important that these are applied as soon as possible, particularly as some of the vulnerabilities are now being actively exploited.

Discuss with you Managed Service Provider (MSP) whether any of your devices or services are impacted, and when they can expect to be patched. While VMware has supplied workaround to help mitigate the issue if it cannot be immediately patched, it is strongly noted that the work arounds do not remove the vulnerabilities and may introduce additional unforeseen issues.

Technical Summary

The following is a break down of the different vulnerabilities with the affected VMware products.

CVE-2022-22972: Critical severity range with maximum CVSSv3 base score of 9.8, malicious actor with network access to the UI may be able to obtain administrative access without the need to authenticate. Affected VMware products:

·         VMware Workspace One Access

·         Identity Manager

·         vRealize Automation

CVE-2022-22973: Important severity range with maximum CVSSv3 base core of 7,8, malicious actor with local access to the system can escalate privileges to ‘root’.

·         VMware Workspace ONE Access and Identity Manager

The following VMware products deploy the above affected components.

• VMware Cloud Foundation

• vRealize Suite Lifecycle Manager

Further technical information including a response patch matrix and workarounds can be found here: VMSA-2022-0014 (vmware.com), VMSA-2022-0014: Questions & Answers | VMware

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