Vulnerability Description
The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Vmware | Vcenter Server | 6.5 |
| Vmware | Cloud Foundation | >= 3.0, < 3.10.2.1 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/162812/VMware-Security-Advisory-2021-0010.hThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/163487/VMware-vCenter-Server-Virtual-SAN-HeExploitThird Party AdvisoryVDB Entry
- https://www.vmware.com/security/advisories/VMSA-2021-0010.htmlVendor Advisory
- http://packetstormsecurity.com/files/162812/VMware-Security-Advisory-2021-0010.hThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/163487/VMware-vCenter-Server-Virtual-SAN-HeExploitThird Party AdvisoryVDB Entry
- https://www.vmware.com/security/advisories/VMSA-2021-0010.htmlVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-US Government Resource
FAQ
What is CVE-2021-21985?
CVE-2021-21985 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malic...
How severe is CVE-2021-21985?
CVE-2021-21985 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-21985?
Check the references section above for vendor advisories and patch information. Affected products include: Vmware Vcenter Server, Vmware Cloud Foundation.