CVE-2021-21991

Description

The vCenter Server contains a local privilege escalation vulnerability due to the way it handles session tokens. A malicious actor with non-administrative user access on vCenter Server host may exploit this issue to escalate privileges to Administrator on the vSphere Client (HTML5) or vCenter Server vSphere Web Client (FLEX/Flash).

References

https://www.tenable.com/blog/cve-2021-22005-critical-file-upload-vulnerability-in-vmware-vcenter-server

https://www.vmware.com/security/advisories/VMSA-2021-0020.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3