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).
This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
VMware vCenter Server and Cloud Foundation Server Side Request Forgery (SSRF) Vulnerability
VMware vCenter Server and Cloud Foundation
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3/7/2022
https://nvd.nist.gov/vuln/detail/CVE-2021-21973
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/A:N
This vulnerability has a 88.01% probability of being exploited in the next 30 days, ranking higher than 100% of all scored CVEs.
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