VMware · vCenter Server
CVE-2021-21985
VMware vCenter Server Improper Input Validation Vulnerability
概要
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.
CISA: 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.
対処法
Apply updates per vendor instructions.
米国連邦機関の対応期限：2021年11月17日
VMwareのその他の悪用された脆弱性
| 追加日 | 脆弱性 | 製品 | 深刻度 | 攻撃の可能性 |
|---|---|---|---|---|
| 2024/11/20 | Heap-Based Buffer Overflow | vCenter Server | 緊急 9.8 | 55% |
| 2024/11/20 | Privilege Escalation | vCenter Server | 高 7.5 | 17% |
| 2024/07/17 | Incorrect Default File Permissions Vulnerability | vCenter Server | 中 6.5 | 13% |
| 2024/01/22 | Out-of-Bounds Write | vCenter Server | 緊急 9.8 | 99.2% |
| 2022/01/10 | Improper Access Control | vCenter Server | 中 5.3 | 49% |
| 2021/11/03 | Information Disclosure | vCenter Server | 緊急 9.8 | 90% |
| 2021/11/03 | Remote Code Execution | vCenter Server | 緊急 9.8 | 99.9% |
| 2021/11/03 | File Upload | vCenter Server | 緊急 9.8 | >99.9% |
出典：Known Exploited Vulnerabilities（CISA、パブリックドメイン）、CVE records（cve.org）、EPSS（FIRST）。攻撃の可能性は、今後30日以内に誰かがその脆弱性の悪用を試みるというEPSSの推定値です。