Command Injection Affecting github.com/fluxcd/kustomize-controller Open this link in a new tab package, versions <0.15.0


0.0
high
  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

  • Confidentiality

    High

  • Integrity

    High

  • Availability

    High

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  • snyk-id

    SNYK-GOLANG-GITHUBCOMFLUXCDKUSTOMIZECONTROLLER-1920906

  • published

    14 Nov 2021

  • disclosed

    14 Nov 2021

  • credit

    AdamKorcz, DavidKorczynski

How to fix?

Upgrade github.com/fluxcd/kustomize-controller to version 0.15.0 or higher.

Overview

github.com/fluxcd/kustomize-controller is a Kubernetes operator, specialized in running continuous delivery pipelines for infrastructure and workloads defined with Kubernetes manifests and assembled with Kustomize.

Affected versions of this package are vulnerable to Command Injection. Users that can create Kubernetes Secrets, Service Accounts and Flux Kustomization objects, could execute commands inside the kustomize-controller container by embedding a shell script in a Kubernetes Secret. This can be used to run kubectl commands under the Service Account of kustomize-controller, thus allowing an authenticated Kubernetes user to gain cluster admin privileges.

References