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CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 1

A security issue was discovered in kube-apiserver that could allow node updates to bypass a Validating Admission Webhook. Clusters are only affected by this vulnerability if they run a Validating Admission Webhook for Nodes that denies admission based at least partially on the old state of the Node object. Validating Admission Webhook does not observe some previous fields. Se ha detectado un problema de seguridad en kube-apiserver que podría permitir a las actualizaciones de los nodos omitir un Validating Admission Webhook. Los clusters sólo están afectados por esta vulnerabilidad si ejecutan un Validating Admission Webhook para nodos que deniega la admisión basándose, al menos parcialmente, en el estado antiguo del objeto Node. • https://github.com/darryk10/CVE-2021-25735 https://github.com/kubernetes/kubernetes/issues/100096 https://groups.google.com/g/kubernetes-security-announce/c/FKAGqT4jx9Y https://access.redhat.com/security/cve/CVE-2021-25735 https://bugzilla.redhat.com/show_bug.cgi?id=1937562 • CWE-20: Improper Input Validation CWE-372: Incomplete Internal State Distinction •

CVSS: 4.9EPSS: 0%CPEs: 4EXPL: 0

A security issue was discovered in Kubernetes where a user may be able to redirect pod traffic to private networks on a Node. Kubernetes already prevents creation of Endpoint IPs in the localhost or link-local range, but the same validation was not performed on EndpointSlice IPs. Se ha detectado un problema de seguridad en Kubernetes en el que un usuario puede ser capaz de redirigir el tráfico del pod a redes privadas en un Nodo. Kubernetes ya previene la creación de IPs de Endpoint en el rango localhost o link-local, pero no se ha llevado a cabo la misma comprobación en las IPs de EndpointSlice. A security issue was discovered in Kubernetes where an authorized user may be able to redirect traffic to private networks on a Node. • https://github.com/kubernetes/kubernetes/issues/102106 https://groups.google.com/g/kubernetes-security-announce/c/xAiN3924thY https://security.netapp.com/advisory/ntap-20211004-0004 https://access.redhat.com/security/cve/CVE-2021-25737 https://bugzilla.redhat.com/show_bug.cgi?id=1954917 • CWE-20: Improper Input Validation CWE-184: Incomplete List of Disallowed Inputs CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •

CVSS: 6.3EPSS: 0%CPEs: 4EXPL: 0

Kube-proxy on Windows can unintentionally forward traffic to local processes listening on the same port (“spec.ports[*].port”) as a LoadBalancer Service when the LoadBalancer controller does not set the “status.loadBalancer.ingress[].ip” field. Clusters where the LoadBalancer controller sets the “status.loadBalancer.ingress[].ip” field are unaffected. Kube-proxy en Windows puede reenviar tráfico involuntariamente a procesos locales que escuchan en el mismo puerto (“spec.ports[*].port”) que LoadBalancer Service cuando el controlador LoadBalancer no configura “status.loadBalancer.ingress[].ip”. Los clústeres donde el controlador LoadBalancer establece el campo "status.loadBalancer.ingress[].ip" no se ven afectados. A flaw was found in the Windows kube-proxy component. • https://github.com/kubernetes/kubernetes/pull/99958 https://groups.google.com/g/kubernetes-security-announce/c/lIoOPObO51Q/m/O15LOazPAgAJ https://security.netapp.com/advisory/ntap-20231221-0003 https://access.redhat.com/security/cve/CVE-2021-25736 https://bugzilla.redhat.com/show_bug.cgi?id=1946538 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVSS: 4.3EPSS: 0%CPEs: 1EXPL: 0

Jenkins Kubernetes CLI Plugin 1.10.0 and earlier does not perform permission checks in several HTTP endpoints, allowing attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins. Jenkins Kubernetes CLI Plugin versión 1.10.0 y anteriores no lleva a cabo comprobaciones de permisos en varios endpoints HTTP, permitiendo a atacantes con permiso Overall/Read enumerar los ID de las credenciales almacenadas en Jenkins • http://www.openwall.com/lists/oss-security/2021/06/10/14 https://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-2370 •

CVSS: 6.3EPSS: 0%CPEs: 1EXPL: 0

In Kubernetes clusters using VSphere as a cloud provider, with a logging level set to 4 or above, VSphere cloud credentials will be leaked in the cloud controller manager's log. This affects < v1.19.3. En los clústeres de Kubernetes que utilizan VSphere como proveedor de nube, con un nivel de registro establecido en 4 o superior, las credenciales de la nube de VSphere se filtrarán en el registro del administrador del controlador de nube. Esto afecta a versiones anteriores a v1.19.3 A flaw was found in kubernetes. Clusters running on VSphere, using VSphere as a cloud provider a with logging level set to 4 or above, VSphere cloud credentials will be leaked in the cloud controller manager's log. • https://github.com/kubernetes/kubernetes/issues/95621 https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ https://security.netapp.com/advisory/ntap-20210122-0006 https://access.redhat.com/security/cve/CVE-2020-8563 https://bugzilla.redhat.com/show_bug.cgi?id=1886635 • CWE-117: Improper Output Neutralization for Logs CWE-532: Insertion of Sensitive Information into Log File •