Rewterz Threat Advisory – Multiple VMware Products Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2021-21985

The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server.

CVE-2021-21986

The vSphere Client (HTML5) contains a vulnerability in a vSphere authentication mechanism for the Virtual SAN Health Check, Site Recovery, vSphere Lifecycle Manager, and VMware Cloud Director Availability plug-ins. A malicious actor with network access to port 443 on vCenter Server may perform actions allowed by the impacted plug-ins without authentication.

Impact

• Remote code execution

Affected Vendors

VMware

Affected Products

• VMware vCenter Server (vCenter Server)
• VMware Cloud Foundation (Cloud Foundation)

Remediation

Refer to VMware advisory for the complete list of affected products and their respective patches.

https://www.vmware.com/security/advisories/VMSA-2021-0010.html