CVE-2021-22017: VMware vCenter Server Improper Access Control
Medium · CVSS 5.3 (CVSS 3.1)KEV known exploitedEPSS 49.2%, 99th percentilePublished Updated Assigner: vmware
In CISA’s Known Exploited Vulnerabilities catalog: VMware vCenter Server Improper Access Control.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
Description
Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to bypass proxy leading to internal endpoints being accessed.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
VMware vCenter Server, VMware Cloud Foundation
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- www.vmware.com/security/advisories/VMSA-2021-0020.html (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)