CVE-2021-21973

VMware vCenter Server and Cloud Foundation Server Side Request Forgery (SSRF) Vulnerability

VMware vCenter Server and Cloud FoundationContainers & cloud

CVSS

5.3Medium

ExploitationExploited in the wildAdded to KEV 7 Mar 2022CISA KEV

Exploit odds (EPSS)88.0%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS

Fixed inNone listedNo source names a fixed version. Check the vendor advisory below

Federal deadline21 Mar 2022Remediation due date for US federal agenciesCISA KEV

CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Timeline

24 Feb 2021, 16:42 UTCPublishedCVE List
7 Mar 2022Added to CISA KEVCISA KEV

Public exploit code and templates 1

Scanner templateVMware vSphere - Server-Side Request ForgeryNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

VMware vCenter Server and Cloud Foundation Server contain a SSRF vulnerability due to improper validation of URLs in a vCenter Server plugin. This allows for information disclosure.

Text from CVE List

Affected versions 5

VMware vCenter Serveraffected: 7.x before 7.0 U1cCVE List
VMware vCenter Serveraffected: 6.7 before 6.7 U3lCVE List
VMware vCenter Serveraffected: 6.5 before 6.5 U3nCVE List
VMware Cloud Foundationaffected: 4.x before 4.2CVE List
VMware Cloud Foundationaffected: 3.x before 3.10.1.2CVE List