CVE-2021-21986critical
Description
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.
References
https://www.vmware.com/security/advisories/VMSA-2021-0010.html
http://packetstormsecurity.com/files/162812/VMware-Security-Advisory-2021-0010.html
Details
Source: MITRE
Published: 2021-05-26
Updated: 2021-08-24
Type: CWE-287
Risk Information
CVSS v2
Base Score: 10
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 10
Severity: HIGH
CVSS v3
Base Score: 9.8
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL