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[mirror] The Go Vulnerability Database
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x/vulndb: potential Go vuln in github.com/fluxcd/flux2: CVE-2022-24817 #446

Closed GoVulnBot closed 2 years ago

GoVulnBot commented 2 years ago

CVE-2022-24817 references github.com/fluxcd/flux2, which may be a Go module.

Description: Flux2 is an open and extensible continuous delivery solution for Kubernetes. Flux2 versions between 0.1.0 and 0.29.0, helm-controller 0.1.0 to v0.19.0, and kustomize-controller 0.1.0 to v0.23.0 are vulnerable to Code Injection via malicious Kubeconfig. In multi-tenancy deployments this can also lead to privilege escalation if the controller's service account has elevated permissions. Workarounds include disabling functionality via Validating Admission webhooks by restricting users from setting the spec.kubeConfig field in Flux Kustomization and HelmRelease objects. Additional mitigations include applying restrictive AppArmor and SELinux profiles on the controller’s pod to limit what binaries can be executed. This vulnerability is fixed in kustomize-controller v0.23.0 and helm-controller v0.19.0, both included in flux2 v0.29.0

Links:

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module: github.com/fluxcd/flux2
package: flux2
description: "Flux2 is an open and extensible continuous delivery solution for Kubernetes.
    Flux2 versions between 0.1.0 and 0.29.0,  helm-controller 0.1.0 to v0.19.0, and
    kustomize-controller 0.1.0 to v0.23.0 are vulnerable to Code Injection via malicious
    Kubeconfig. In multi-tenancy deployments this can also lead to privilege escalation
    if the controller's service account has elevated permissions. Workarounds include
    disabling functionality via Validating Admission webhooks by restricting users
    from setting the `spec.kubeConfig` field in Flux `Kustomization` and `HelmRelease`
    objects. Additional mitigations include applying restrictive AppArmor and SELinux
    profiles on the controller’s pod to limit what binaries can be executed. This
    vulnerability is fixed in kustomize-controller v0.23.0 and helm-controller v0.19.0,
    both included in flux2 v0.29.0 \n"
cves:
  - CVE-2022-24817
links:
    context:
      - https://github.com/fluxcd/flux2/security/advisories/GHSA-vvmq-fwmg-2gjc
neild commented 2 years ago

Vulnerability in tool.