CVE-2021-21991: High severity vmware vcenter server and cloud foundation vulnerability
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).
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-21991.
What is the severity of CVE-2021-21991?
The severity of CVE-2021-21991 is high.
What software is affected by CVE-2021-21991?
VMware Cloud Foundation and VMware vCenter Server versions 6.5, 6.7, and 7.0 are affected by CVE-2021-21991.
How does CVE-2021-21991 exploit work?
CVE-2021-21991 exploits a local privilege escalation vulnerability in vCenter Server by manipulating session tokens to escalate privileges.
Is there a fix available for CVE-2021-21991?
Yes, VMware has released patches to address the vulnerability. Please refer to the official VMware security advisory for the appropriate fix for your specific version of the affected software.