CVE-2022-0759

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 v3.0 8.1 HIGH
CVSS v2.0 6.8 MEDIUM

8.1^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/ManageIQ/kubeclient/issues/554	Issue Tracking Patch Third Party Advisory
https://github.com/ManageIQ/kubeclient/issues/555	Issue Tracking Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

cpe:2.3:a:redhat:kubeclient:*:*:*:*:*:ruby:*:*

Information

Published : 2022-03-25 12:15

Updated : 2022-04-07 12:13

NVD link : CVE-2022-0759

Mitre link : CVE-2022-0759

JSON object : View

CWE

CWE-295

Improper Certificate Validation

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Products Affected

redhat

kubeclient

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