Kubesploit

Master Kubernetes with this a 4-day Advanced Kubernetes workshop on the 9th of June! What should you expect? - Learn how to architect and design clusters from the ground up (in the cloud or on-prem). - Explore the Kubernetes internal component and how the system is designed with resiliency in mind. - Deep-dive into the networking components and observe the packets flowing into the cluster. - Hands-on labs to test the theory with real-world scenarios! You can sign up here: https://learnk8s.io/online-advanced-june-2022

It's no secret that Kubernetes Secrets are just base64-encoded strings stored in etcd alongside the rest of the cluster's state. But is it *really* an issue? Let's create a rudimentary threat model for Kubernetes Secrets and see what comes up. More: https://macchaffee.com/blog/2022/k8s-secrets

2022 cloud-native threat report from Aquasec highlights the key threats targeting cloud-native applications by analyzing attacks and techniques in the wild. More: https://blog.aquasec.com/2022-cloud-native-threat-report-cyber-attacks

🗓 Kubernetes events starting in the next 24 hours: 16 May 7:45 am GMT - DoK day 2022 (Data on Kubernetes) - 📍 In-person conference 16 May 12:00 pm GMT - Operator Day KubeCon EU (Canonical) - 📍 Online & in-person conference 16 May 1:00 pm GMT - KubeCon + CloudNativeCon Europe (Linux Foundation) - 📍 Online & in-person conference 16 May 1:00 pm GMT - Kubernetes AI day Europe (Linux Foundation) - 📍 In-person conference → See all Kubernetes events

Kubernetes has a pluggable mechanism for enforcing granular policies on its resources. This gets even easier when you add Open Policy Agent and Gatekeeper. In this article, you will learn how to use Gatekeeper to keep your Deployments in check. More: https://asankov.dev/blog/2022/04/21/securing-kubernetes-with-open-policy-agent

A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use `.metadata.annotations` in an Ingress object to obtain the credentials of the ingress-nginx controller. More: https://groups.google.com/g/kubernetes-security-announce/c/hv2-SfdqcfQ

This article explores how the cert-manager can be used for on-premises Kubernetes applications to manage their certificate lifecycles. More: https://itnext.io/certificate-management-for-on-premises-cloud-native-apps-dbca82e3c405

This article aims to explain the architecture of Hashicorp Vault and how to install it in Kubernetes. Towards the end of the article, you will also discuss how an application can make use of Vault with a hands-on demo. More: https://devopslearners.com/comprehensive-guide-to-setup-hasicorp-vault-in-kubernetes-8543e9912e3f

There are cases when you need to implement traffic encryption of services running within their Kubernetes cluster but a service mesh is an overkill. In this article, you'll achieve this using cert-manager and related tools in a simple and efficient way. More: https://medium.com/@mikhail_advani/kubernetes-in-cluster-traffic-encryption-using-cert-manager-b70c2101a12d

Learn how to recreate the Kubernetes RBAC authorization model from scratch and practice the relationships between Roles, ServiceAccounts, RoleBindings, etc. More: https://learnk8s.io/rbac-kubernetes

In this post, you will answer the following question: "how can we enforce security best practices at the cluster or namespace level?" You will cover: - Pod Security Policies. - Pod Security Admission controller. - Examples and demos. ➜ https://faun.pub/pod-security-policies-are-dead-long-live-pod-security-admission-a7431a764ba3

In this article, you will find the log for the Insekube CTF. You will learn: - How to enumerate ports on a cluster. - Obtaining a reverse shell. - Exploiting Grafana to access /etc/passwd. - Gaining root access. ➜ https://arrowa.medium.com/insekube-ctf-tryhackme-8b3f26556e0a

In this article, you'll learn why you should avoid Sealed Secrets in your GitOps deployment: 1. The keys to which environment? 2. The secrets are … right there. 3. The key to secure all keys is still a key. 4. There are better solutions. ➜ https://dnastacio.medium.com/why-you-should-avoid-sealed-secrets-in-your-gitops-deployment-e50131d360dd

A bug was found in containerd prior to versions 1.6.1, 1.5.10, and 1.14.12 where containers launched through containerd with a specially-crafted image configuration could gain access to read-only copies of arbitrary files and directories on the host. ➜ https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-23648

Granting rights to node/proxy resources in Kubernetes could allow for audit logs and other security controls to be bypassed. Learn how in this article. Read more https://blog.aquasec.com/privilege-escalation-kubernetes-rbac

Radare2 is an open-source framework for reverse-engineering and binary analysis. In this article, you will learn how to run analysis at scale with Radare2, a CI/CD pipeline and Kubernetes. Read more https://archcloudlabs.com/projects/dumb_fuzzing

The kubelet uses startup, readiness, and liveness probes to verify whether a pod is booting, ready to accept traffic and still alive. It is the kubelet who actually executes the probes (and not the pod itself). Learn how you can exploit them. Read more https://xxradar.medium.com/exploiting-applications-using-livenessprobes-in-kubernetes-cdff6329d320

Security researchers discovered a vulnerability where attackers could construct a malicious Helm chart to exfiltrate secrets, tokens, and other sensitive information from Argo CD which could then be potentially used for privilege escalation. Read more https://blog.argoproj.io/argo-cd-deals-with-our-first-zero-day-cve-86e8fb158e8f

PodSecurityPolicy exists in Kubernetes to provide security controls for pods. PSPs are deprecated in 1.21 (April 2021) and will be removed entirely in 1.25 (expected around April 2022). This article explains what PSPs are and their alternatives. Read more https://appvia.io/blog/podsecuritypolicy-is-dead-long-live

In this article you will compare five open-source tools for Kubernetes security scanning: 1. Grype. 2. Trivy. 3. Kubesec. 4. Kube-bench. 5. kubeaudit. Read more https://quesengmany.medium.com/how-to-improve-the-security-of-your-applications-with-kubernetes-security-scanners-cda97fd2f574