Kubernetes — открытое программное обеспечение для оркестровки контейнеризированных приложений — автоматизации их развёртывания, масштабирования и координации в условиях кластера.

Уязвимость корпоративной платформы Red Hat OpenShift Container Platform, связанная с ошибками проведения процедуры авторизации, позволяющая нарушителю получить доступ к защищаемой информации

Missing Authorization in Jenkins Kubernetes CLI Plugin

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.

Access Restriction Bypass in kube-apiserver

XML Entity Expansion and Improper Input Validation in Kubernetes API server

Kubernetes kubectl cp Vulnerable to Symlink Attack

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.

Kubernetes Privilege Escalation

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.

As mitigations to a report from 2019 and CVE-2020-8555, Kubernetes attempts to prevent proxied connections from accessing link-local or localhost networks when making user-driven connections to Services, Pods, Nodes, or StorageClass service providers. As part of this mitigation Kubernetes does a DNS name resolution check and validates that response IPs are not in the link-local (169.254.0.0/16) or localhost (127.0.0.0/8) range. Kubernetes then performs a second DNS resolution without validation for the actual connection. If a non-standard DNS server returns different non-cached responses, a user may be able to bypass the proxy IP restriction and access private networks on the control plane.