Improper Authorization in vCenter Server - CVE-2021-22006

 

Improper Authorization in vCenter Server - CVE-2021-22006

Published: September 21, 2021 / Updated: February 1, 2023


Vulnerability identifier: #VU56795
CSH Severity: High
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-2021-22006
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability: Public exploit is available

Vulnerability details

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

The vulnerability exist due to improper URI handling in reverse proxy. A remote non-authenticate attacker can send a specially crafted HTTP request to port 443/TCP and access restricted endpoints.

Affected software

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

How to mitigate CVE-2021-22006

Install updates from vendor's website.

vCenter Server - addressed in versions 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

External References

Related Security Bulletins