CVE Vulnerabilities

CVE-2021-21986

Improper Authentication

Published: May 26, 2021 | Modified: Aug 24, 2021
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
10 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.

Affected Software

Name Vendor Start Version End Version
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.5 6.5
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 6.7 6.7
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0
Vcenter_server Vmware 7.0 7.0

Potential Mitigations

References