Number: AV20-126
Date: 29 April 2020
On 28 April 2020 VMware released a security advisory to address an important vulnerability, tracked as CVE-2020-3955, affecting VMware ESXi v6.5 and v6.7. An actor with access to modify the system properties of a virtual machine from inside the guest os (such as changing the hostname of the virtual machine) may be able to inject a malicious script. This script may be executed by a victim's browser when viewing this virtual machine via the ESXi Host Client.
The Cyber Centre encourages users to review the following VMware advisory and apply the necessary update:
https://www.vmware.com/security/advisories/VMSA-2020-0008.html
Note to Readers
The Canadian Centre for Cyber Security (Cyber Centre) operates as part of the Communications Security Establishment. We are Canada’s national authority on cyber security and we lead the government’s response to cyber security events. As Canada's national computer security incident response team, the Cyber Centre works in close collaboration with government departments, critical infrastructure, Canadian businesses and international partners to prepare for, respond to, mitigate, and recover from cyber events. We do this by providing authoritative advice and support, and coordinating information sharing and incident response. The Cyber Centre is outward-facing, welcoming partnerships that help build a stronger, more resilient cyber space in Canada.