CVE-2022-0759 Information

Description

A flaw was found in all versions of kubeclient up to (but not including) v4.9.3 the Ruby client for Kubernetes REST API in the way it parsed kubeconfig files. When the kubeconfig file does not configure custom CA to verify certs kubeclient ends up accepting any certificate (it wrongly returns VERIFY_NONE). Ruby applications that leverage kubeclient to parse kubeconfig files are susceptible to Man-in-the-middle attacks (MITM).

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/ManageIQ/kubeclient/issues/554 https://github.com/ManageIQ/kubeclient/issues/555

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1