Security Bulletin: Multiple Vulnerabilities in VMware vCenter affect IBM Cloud Pak System

Summary

Multiple vulnerabilities in VMware vCenter plugins affect IBM Cloud Pak System. IBM Cloud Pak System in response to the vulnerabilities in VMware vCenter, provides the new release of IBM Cloud Pak System V2.3.3.4, with a new vCenter Image.

Vulnerability Details

CVEID:CVE-2021-21985
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation could allow a remote attacker to execute arbitrary commands on the system, caused by improper validation of user-supplied input by the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. By sending a specially-crafted request using port 443, an attacker could exploit this vulnerability to execute arbitrary commands with unrestricted privileges on the underlying operating system that hosts vCenter Server.
CVSS Base score: 9.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202404 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2021-21986
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation could allow a remote attacker to bypass security restrictions, caused by a flaw in a vSphere authentication mechanism for the Virtual SAN Health Check, Site Recovery, vSphere Lifecycle Manager, and VMware Cloud Director Availability plug-ins. By sending a specially-crafted request using port 443, an attacker could exploit this vulnerability to bypass authentication and perform actions allowed by the impacted plug-ins without authentication.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202403 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID:CVE-2021-21991
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation could allow a local authenticated attacker to gain elevated privileges on the system, caused by improper handling of session tokens. An attacker could exploit this vulnerability to escalate privileges to Administrator on the vSphere Client.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209752 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)

CVEID:CVE-2021-21992
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation are vulnerable to a denial of service, caused by improper XML entity parsing. A remote authenticated attacker could exploit this vulnerability to cause a denial of service on the vCenter Server host.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209751 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-21993
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation are vulnerable to server-side request forgery, caused by improper validation of URLs in vCenter Server Content Library. By sending a specially-crafted POST request, a remote authenticated attacker could exploit this to obtain sensitive information.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209750 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2021-22006
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation could allow a remote attacker to bypass security restrictions, caused by improper handling of the URI by endpoints. An attacker could exploit this vulnerability to access restricted endpoints.
CVSS Base score: 8.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209748 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L)

CVEID:CVE-2021-22008
**DESCRIPTION:**VMware vCenter Server could allow a remote attacker to obtain sensitive information. By sending a specially crafted jsonrpc message, a remote attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209746 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2021-22009
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation are vulnerable to a denial of service, caused by an error in VAPI (vCenter API) service. A remote attacker could exploit this vulnerability to consume excessive memory resources.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209745 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2021-22010
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation are vulnerable to a denial of service, caused by an error in VPXD (Virtual Provisioning X Daemon) service. A remote attacker could exploit this vulnerability to consume excessive memory resources.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209744 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2021-22011
**DESCRIPTION:**VMware vCenter Server and Cloud Foundation could allow a remote attacker to bypass security restrictions, caused by an unauthenticated API endpoint vulnerability. An attacker could exploit this vulnerability to manipulate VM network settings.
CVSS Base score: 8.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209743 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H)

CVEID:CVE-2021-22016
**DESCRIPTION:**VMware vCenter Server is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability using a specially-crafted URL to execute script in a victim’s Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim’s cookie-based authentication credentials.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209738 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID:CVE-2021-22017
**DESCRIPTION:**Rhttproxy as used in VMware vCenter Server and Cloud Foundation could allow a remote attacker to bypass security restrictions, caused by the improper implementation of URI normalization. An attacker could exploit this vulnerability to bypass proxy leading to internal endpoints being accessed.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209737 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

Affected Products and Versions

Remediation/Fixes

For unsupported or end of life release recommendation is to upgrade to supported fixed release of the product.

IBM Cloud Pak System, in response to the vulnerabilities above provides the new release of IBM Cloud Pak System V2.3.3.4, with new Windows vCenter Image update to vCenter 6.7 U3o.

For IBM Cloud Pak System V2.3.0.1, V.2.3.1.1, v.2.3.2.0, v2.3.3.0, v.2.3.3.1, v.2.3.3.2, v.2.3.3.3, v2.3.3.3 iFix 1

upgrade to IBM Cloud Pak System v2.3.3.4 at Fix Central

If you are not able to upgrade or for earlier releases, until you upgrade apply workaround as provided here.

Information on upgrading can be found here: http://www.ibm.com/support/docview.wss?uid=ibm10887959.

Workarounds and Mitigations

None.