CVE-2021-21973: VMware vCenter Server and Cloud Foundation Server Side Request Forgery (SSRF) Vulnerability

Description

The vSphere Client (HTML5) contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue by sending a POST request to vCenter Server plugin leading to information disclosure. This affects: VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2).

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

Low

Integrity

None

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)88.0% · higher than 100% of CVEs

Exploited in the wildYes

CISA KEVListed Mar 7, 2022

Federal remediation dueMar 21, 2022

Ransomware campaign useNot known

Affected products

Which versions

VS

vCenter Server · VMware

7.x before 7.0 U1c; 6.7 before 6.7 U3l; 6.5 before 6.5 U3n · source: vendor, NVD

VC

VMware Cloud Foundation ·

4.x before 4.2; 3.x before 3.10.1.2 · source: vendor

CF

Cloud Foundation · Vmware

3.0 before 3.10.1.2; 4.0 before 4.2 · source: NVD

VS

vCenter Server and Cloud Foundation · VMware

All versions, or not specified · source: KEV