Mitigating RBAC-Based Privilege Escalation in Popular Kubernetes Platforms
Summary: Prisma Cloud and Unit 42 analyzed popular Kubernetes platforms and found most installed privileged DaemonSets, with half granting admin-equivalent credentials on every node so that a single container escape could compromise the whole cluster. All platforms named in the report have since addressed the built-in node-to-admin privilege escalation, using methods including permission removal, scoped permissions, and validating admission webhooks on AKS and EKS.
Key Takeaway: In half the platforms studied, one container escape was enough to take the entire cluster, because admin-equivalent credentials sat on every node. The report notes that third-party add-ons can reintroduce the same attack paths even after the platforms themselves are hardened.
Read the original at Unit 42 Palo Alto Networks ↗
- Topics
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