CVE-2023-34091

Kyverno is a policy engine designed for Kubernetes. In versions of Kyverno prior to 1.10.0, resources which have the `deletionTimestamp` field defined can bypass validate, generate, or mutate-existing policies, even in cases where the `validationFailureAction` field is set to `Enforce`. This situation occurs as resources pending deletion were being consciously exempted by Kyverno, as a way to reduce processing load as policies are typically not applied to objects which are being deleted. However, this could potentially result in allowing a malicious user to leverage the Kubernetes finalizers feature by setting a finalizer which causes the Kubernetes API server to set the `deletionTimestamp` and then not completing the delete operation as a way to explicitly to bypass a Kyverno policy. Note that this is not applicable to Kubernetes Pods but, as an example, a Kubernetes Service resource can be manipulated using an indefinite finalizer to bypass policies. This is resolved in Kyverno 1.10.0. There is no known workaround.
Configurations

Configuration 1 (hide)

cpe:2.3:a:nirmata:kyverno:*:*:*:*:*:go:*:*

History

09 Jun 2023, 15:18

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 6.5
References (MISC) https://github.com/kyverno/kyverno/security/advisories/GHSA-hq4m-4948-64cc - (MISC) https://github.com/kyverno/kyverno/security/advisories/GHSA-hq4m-4948-64cc - Vendor Advisory
References (MISC) https://github.com/kyverno/kyverno/releases/tag/v1.10.0 - (MISC) https://github.com/kyverno/kyverno/releases/tag/v1.10.0 - Release Notes
CWE NVD-CWE-noinfo
CPE cpe:2.3:a:nirmata:kyverno:*:*:*:*:*:go:*:*
First Time Nirmata
Nirmata kyverno

01 Jun 2023, 17:29

Type Values Removed Values Added
New CVE

Information

Published : 2023-06-01 17:15

Updated : 2023-12-10 15:01


NVD link : CVE-2023-34091

Mitre link : CVE-2023-34091

CVE.ORG link : CVE-2023-34091


JSON object : View

Products Affected

nirmata

  • kyverno
CWE
NVD-CWE-noinfo CWE-285

Improper Authorization