CVE-2021-21985

CVSS V2 High 10 CVSS V3 Critical 9.8
Description
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.
Overview
  • CVE ID
  • CVE-2021-21985
  • Assigner
  • security@vmware.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-05-26T15:15:07
  • Last Modified Date
  • 2021-09-14T17:37:24
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:vmware:vcenter_server:6.5:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:a:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:b:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:c:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:d:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:e:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:f:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update1:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update1b:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update1c:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update1d:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update1e:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update1g:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update2:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update2b:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update2c:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update2d:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update2g:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update3:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update3d:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update3f:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update3k:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.5:update3n:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:a:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:b:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:d:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update1:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update1b:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update2:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update2a:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update2c:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update3:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update3a:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update3b:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update3f:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update3g:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update3j:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update3l:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:6.7:update3m:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:a:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:b:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:c:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:d:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:update1:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:update1a:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:update1c:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:update1d:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:update2:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:vcenter_server:7.0:update2a:*:*:*:*:*:* 1 OR
cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:* 1 OR 3.0 3.10.2.1
cpe:2.3:a:vmware:cloud_foundation:*:*:*:*:*:*:*:* 1 OR 4.0 4.2.1
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 10
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.vmware.com/security/advisories/VMSA-2021-0010.html Vendor Advisory
http://packetstormsecurity.com/files/162812/VMware-Security-Advisory-2021-0010.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/163487/VMware-vCenter-Server-Virtual-SAN-Health-Check-Remote-Code-Execution.html Exploit Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-21985
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21985
History
Created Old Value New Value Data Type Notes
2022-05-10 16:05:24 Added to TrackCVE
2022-12-05 03:01:03 2021-05-26T15:15Z 2021-05-26T15:15:07 CVE Published Date updated
2022-12-05 03:01:03 2021-09-14T17:37:24 CVE Modified Date updated
2022-12-05 03:01:03 Analyzed Vulnerability Status updated