CVE-2021-21973
The vSphere Client (HTML5) contains an SSRF (Server Side Request Forgery) vulnerability due to improper validation of URLs in a vCenter Server...
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- January 04, 2021
- Published Date
- February 24, 2021
- Last Updated
- February 04, 2025
- Vendor
- n/a
- Product
- VMware vCenter Server, VMware Cloud Foundation
- 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 Scores
CVSS v3.1
5.3 - MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC Information
- Exploitation
- active
- Automatable
- Yes
- Technical Impact
- partial
Exploit Status
- Exploited in the Wild
- Yes (added 2022-03-07 00:00:00 UTC) Source
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| CISA | 2022-03-07 00:00:00 UTC |
Scanner Integrations
| Scanner | URL | Date Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21973.yaml | 2025-04-26 00:00:00 UTC |