CVE-2021-21985
VMware vCenter Server Improper Input Validation Vulnerability
CVSS
9.8
Crítica
EPSS
100.0%
p100
KEV
SIM
3 de nov. de 2021
Exploit Today
80
0-100
Publicado: 26 de mai. de 2021 · Última mod.: 12 de ago. de 2026 · CWE-918 · CWE-20 · CWE-470
Produto
VMware / vCenter Server
Vulnerabilidade
VMware vCenter Server Improper Input Validation Vulnerability
Adicionado ao KEV
3 de nov. de 2021
Corrigir até
17 de nov. de 2021
Uso conhecido em ransomware
Sim
Descrição resumida
VMware vSphere Client contains an improper input validation vulnerability in the Virtual SAN Health Check plug-in, which is enabled by default in vCenter Server, which allows for remote code execution.
Ação necessária
Apply updates per vendor instructions.
Notas
https://nvd.nist.gov/vuln/detail/CVE-2021-21985
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.
- packetstormsecurity.comhttp://packetstormsecurity.com/files/162812/VMware-Security-Advisory-2021-0010.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/163487/VMware-vCenter-Server-Virtual-SAN-Health-Check-Remote-Code-Execution.html
- www.vmware.comhttps://www.vmware.com/security/advisories/VMSA-2021-0010.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/162812/VMware-Security-Advisory-2021-0010.html
- packetstormsecurity.comhttp://packetstormsecurity.com/files/163487/VMware-vCenter-Server-Virtual-SAN-Health-Check-Remote-Code-Execution.html
- www.vmware.comhttps://www.vmware.com/security/advisories/VMSA-2021-0010.html
- www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21985