CVE-2023-34091
CVSS V2 None
CVSS V3 None
Description
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.
Overview
- CVE ID
- CVE-2023-34091
- Assigner
- GitHub_M
- Vulnerability Status
- PUBLISHED
- Published Version
- 2023-06-01T16:24:53.920Z
- Last Modified Date
- 2023-06-01T16:24:53.920Z
Weakness Enumerations
References
Reference URL | Reference Tags |
---|---|
https://github.com/kyverno/kyverno/security/advisories/GHSA-hq4m-4948-64cc | x_refsource_CONFIRM |
https://github.com/kyverno/kyverno/releases/tag/v1.10.0 | x_refsource_MISC |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-34091 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34091 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2024-06-25 20:39:29 | Added to TrackCVE |