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Symlink Attack Affecting k8s.io/kubernetes/pkg/kubelet Open this link in a new tab package, versions >=1.3.0 <1.7.14 >=1.8.0 <1.8.9 >=1.9.0 <1.9.4

0.0
critical

  • Exploit Maturity

    Proof of concept

  • Attack Complexity

    Low

  • Scope

    Changed

  • Confidentiality

    High

  • Integrity

    High

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  • snyk-id

    SNYK-GOLANG-K8SIOKUBERNETESPKGKUBELET-2825257

  • published

    17 May 2022

  • disclosed

    17 May 2022

  • credit

    Maxim Ivanov

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Introduced: 17 May 2022

CVE-2017-1002101 Open this link in a new tab
CWE-59 Open this link in a new tab

How to fix?

Upgrade k8s.io/kubernetes/pkg/kubelet to version 1.7.14, 1.8.9, 1.9.4 or higher.

Overview

k8s.io/kubernetes/pkg/kubelet is a package that contains the libraries that drive the Kubelet binary. The kubelet is responsible for node level pod management. It runs on each worker in the cluster.

Affected versions of this package are vulnerable to Symlink Attack due to not enforcing limitations on symlink creation in mounts, allowing said symlinks to point to resources outside the volumes specified in the pod using relative path syntax.