CVE-2021-21980: VMware vCenter Server arbitrary file read vulnerability

CVE-2021-21980
VMware vCenter Server is the centralized management utility for VMware and is used to manage virtual machines, multiple ESXi hosts, and all dependent components from a single centralized location. VMware vMotion and svMotion require the use of vCenter and ESXi hosts.
On November 23, 2021, VMware released a security update for the vCenter Server, the vulnerability number is CVE-2021-21980 with the CVSSv3 of 7.5, the vulnerability level is high risk. vSphere Web Client (FLEX/Flash) contains an unauthorized arbitrary file reading vulnerability. Hackers with network access to port 443 on the vCenter Server can use the CVE-2021-21980 to obtain sensitive information.

Affected version

  • vCenter Server 6.7
  • vCenter Server 6.5
  • Cloud Foundation (vCenter Server) 3.x
In this regard, we recommend that users upgrade VMware vCenter Server to the latest version in time.