Input validation error in vCenter Server - CVE-2021-21992

Vulnerability identifier: #VU56792

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-21992

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

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

The vulnerability exists due to insufficient validation of user-supplied input when parsing XML data. A remote user can pass specially crafted XML data to the application 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)