Resource exhaustion in vCenter Server - CVE-2021-22009

Vulnerability identifier: #VU56798

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-22009

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within the VAPI (vCenter API) service. A remote attacker can send specially crafted HTTP request to port 443/TCP and perform a denial of service (DoS) attack.

vCenter Server
Dell Enterprise Hybrid Cloud
EMC Integrated Data Protection Appliance
IBM Cloud Pak System
Cloud Foundation
Dell EMC VxRail Appliance

Install updates from vendor's website.

vCenter Server - addressed in versions 6.5 U3q, 6.7 U3o, 7.0 U2c
EMC Integrated Data Protection Appliance - update to 2.7.0
IBM Cloud Pak System - update to 2.3.3.4
Cloud Foundation - update to 3.10.2.2
Dell Enterprise Hybrid Cloud - update to 4.1.2
Dell EMC VxRail Appliance - addressed in versions 4.5.463, 4.7.536, 7.0.241

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

• Multiple vulnerabilities in VMware vCenter Server
• Multiple vulnerabilities in VMware vCloud Foundation
• Multiple vulnerabilities in Dell EMC VxRail Appliance
• Dell EMC Enterprise Hybrid Cloud update for VMware products
• Multiple Vulnerabilities IBM Cloud Pak System
• Multiple vulnerabilities in Dell EMC PowerProtect DP Series (Integrated Data Protection Appliance)