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Rewterz Threat Advisory – Multiple VMware Security Vulnerabilities

Severity

Medium

Analysis Summary

CVE-2020-3992

A malicious actor residing in the management network who has access to port 427 on an ESXi machine may be able to trigger a use-after-free in the OpenSLP service resulting in remote code execution.

CVE-2020-3993

VMware NSX-T contains a security vulnerability that exists in the way it allows a KVM host to download and install packages from NSX manager. A malicious actor with MITM positioning may be able to exploit this issue to compromise the transport node.

CVE-2020-3981

VMware ESXi, Workstation and Fusion contain an out-of-bounds read vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this issue to leak memory from the vmx process. 

CVE-2020-3982

VMware ESXi, Workstation and Fusion contain an out-of-bounds write vulnerability due to a time-of-check time-of-use issue in ACPI device. A malicious actor with administrative access to a virtual machine may be able to exploit this vulnerability to crash the virtual machine’s vmx process or corrupt hypervisor’s memory heap.

CVE-2020-3994

VMware vCenter Server contains a session hijack vulnerability in the vCenter Server Appliance Management Interface update function due to a lack of certificate validation. A malicious actor with network positioning between vCenter Server and an update repository may be able to perform a session hijack when the vCenter Server Appliance Management Interface is used to download vCenter updates.

CVE-2020-3995

The VMCI host drivers used by VMware hypervisors contain a memory leak vulnerability. A malicious actor with access to a virtual machine may be able to trigger a memory leak issue resulting in memory resource exhaustion on the hypervisor if the attack is sustained for extended periods of time.

Impact

  • Remote code execution
  • Exposure of information
  • Session hijacking

Affected Vendors

VMware

Affected Products

  • VMware ESXi
  • VMware Workstation Pro / Player (Workstation)
  • VMware Fusion Pro / Fusion (Fusion) 11.x
  • NSX-T
  • VMware Cloud Foundation
  • VMware vCenter Server

Remediation

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

https://www.vmware.com/security/advisories/VMSA-2020-0023.html