4.7

CVE-2025-64432

Exploit

KubeVirt Affected by an Authentication Bypass in Kubernetes Aggregation Layer

KubeVirt is a virtual machine management add-on for Kubernetes. Versions 1.5.3 and below, and 1.6.0 contained a flawed implementation of the Kubernetes aggregation layer's authentication flow which could enable bypass of RBAC controls. It was discovered that the virt-api component fails to correctly authenticate the client when receiving API requests over mTLS. In particular, it fails to validate the CN (Common Name) field in the received client TLS certificates against the set of allowed values defined in the extension-apiserver-authentication configmap. Failre to validate certain fields in the client TLS certificate may allow an attacker to bypass existing RBAC controls by directly communicating with the aggregated API server, impersonating the Kubernetes API server and its aggregator component. This issue is fixed in versions 1.5.3 and 1.6.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Kubevirt ≫ Kubevirt SwPlatformkubernetes Version < 1.5.3
Kubevirt ≫ Kubevirt Version1.6.0 Update- SwPlatformkubernetes
Kubevirt ≫ Kubevirt Version1.6.0 Updaterc0 SwPlatformkubernetes
Kubevirt ≫ Kubevirt Version1.6.0 Updaterc1 SwPlatformkubernetes
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.037
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
security-advisories@github.com 4.7 1 3.6
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

CWE-295 Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

https://github.com/kubevirt/kubevirt/security/advisories/GHSA-38jw-g2qx-4286
Vendor Advisory
Exploit
https://github.com/kubevirt/kubevirt/commit/231dc69723f331dc02f65a31ab4c3d6869f40d6a
Patch
https://github.com/kubevirt/kubevirt/commit/af2f08a9a186eccc650f87c30ab3e07b669e8b5b
Patch
https://github.com/kubevirt/kubevirt/commit/b9773bc588e6e18ece896a2dad5336ef7a653074
Patch