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.
References
Link | Resource |
---|---|
https://github.com/kyverno/kyverno/releases/tag/v1.10.0 | Release Notes |
https://github.com/kyverno/kyverno/security/advisories/GHSA-hq4m-4948-64cc | Vendor Advisory |
Configurations
History
09 Jun 2023, 15:18
Type | Values Removed | Values Added |
---|---|---|
References | (MISC) https://github.com/kyverno/kyverno/releases/tag/v1.10.0 - Release Notes | |
References | (MISC) https://github.com/kyverno/kyverno/security/advisories/GHSA-hq4m-4948-64cc - Vendor Advisory | |
CPE | cpe:2.3:a:nirmata:kyverno:*:*:*:*:*:go:*:* | |
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 6.5 |
CWE | NVD-CWE-noinfo | |
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 : 2024-02-28 20:13
NVD link : CVE-2023-34091
Mitre link : CVE-2023-34091
CVE.ORG link : CVE-2023-34091
JSON object : View
Products Affected
nirmata
- kyverno
CWE