SSRF in VMware Cloud Foundation

CVE-2021-21993

The vCenter Server contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in vCenter Server Content Library. An authorised user with access to content library may exploit this issue by sending a POST request to vCenter Server leading to information disclosure.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.009 (59.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 60th percentile — 59.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-21993: held from 0.009 to 0.009.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

  • VMware Cloud Foundation
  • VMware Vcenter Server — versions 6.5, 6.7, 7.0
  • VMware Vcenter Server, Cloud Foundation — versions VMware vCenter Server(7.x before 7.0 U2c, 6.7 before 6.7 U3o and 6.5 before 6.5 U3q) and VMware Cloud Foundation (4.x before 4.3 and 3.x before 3.10.2.2)

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-21993?
CVE-2021-21993 is a medium-severity vulnerability in VMware Cloud Foundation, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2021-09-23.
How severe is CVE-2021-21993?
Medium severity. CVSS v3 base score is 6.5 out of 10.