Security Bulletin: IBM Cloud Pak for Data is vulnerable due to k8s.io/kubernetes ( CVE-2023-2728, CVE-2023-2727, CVE-2023-5408, CVE-2023-3955, CVE-2023-3676 )

Summary

k8s.io/kubernetes is used by IBM Cloud Pak for Data as part of the platform. CVE-2023-2728, CVE-2023-2727, CVE-2023-5408, CVE-2023-3955, CVE-2023-3676.

Vulnerability Details

CVEID:CVE-2023-2728
**DESCRIPTION:**Kubernetes could allow a remote authenticated attacker to bypass security restrictions, caused by a flaw when the ServiceAccount admission plugin and the kubernetes.io/enforce-mountable-secrets annotation are used together with ephemeral containers. By sending a specially crafted request, an attacker could exploit this vulnerability to bypass the mountable secrets policy to launch containers.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/259627 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2023-2727
**DESCRIPTION:**Kubernetes could allow a remote authenticated attacker to bypass security restrictions, caused by a flaw when the ImagePolicyWebhook admission plugin is used together with ephemeral containers. By sending a specially crafted request, an attacker could exploit this vulnerability to launch restricted containers.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/259626 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N)

CVEID:CVE-2023-5408
**DESCRIPTION:**OpenShift Kubernetes could allow a local authenticated attacker to gain elevated privileges on the system, caused by a flaw in the node restriction admission plugin. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain elevated privileges.
CVSS Base score: 8.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/270452 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H)

CVEID:CVE-2023-3955
**DESCRIPTION:**Kubernetes could allow a remote authenticated attacker to gain elevated privileges on the system, caused by improper input validation on Windows nodes. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain admin privileges.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/264230 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2023-3676
**DESCRIPTION:**Kubernetes could allow a remote authenticated attacker to gain elevated privileges on the system, caused by improper input validation on Windows nodes. By sending a specially crafted request, an authenticated attacker could exploit this vulnerability to gain admin privileges.
CVSS Base score: 8.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/264233 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

Affected Product(s)|**Version(s)
**
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IBM Cloud Pak for Data| 4.0.0-4.8.4

Remediation/Fixes

IBM****strongly recommends addressing the vulnerability now.

Product(s)

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Version(s) number and/or range

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Remediation/Fix/Instructions

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IBM Cloud Pak for Data

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4.0.0-4.8.4

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Download 4.8.5 and follow instructions

Workarounds and Mitigations

None