Improper Authorization in vCenter Server - CVE-2021-22017

Vulnerability identifier: #VU56806

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-22017

CWE-ID: CWE-285

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

The vulnerability allows a remote attacker to gain unauthorized access to the system.

The vulnerability exist due to improper implementation of URI normalization in rhttpproxy. A remote non-authenticate attacker can request a specially crafted URL, bypass rhttpproxy and access internal endpoints.

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
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)