CVE-2020-8568: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

February 15, 2022 (updated April 20, 2022)

Kubernetes Secrets Store CSI Driver versions v0.0.15 and v0.0.16 allow an attacker who can modify a SecretProviderClassPodStatus/Status resource the ability to write content to the host filesystem and sync file contents to Kubernetes Secrets. This includes paths under var/lib/kubelet/pods that contain other Kubernetes Secrets.

References

github.com/advisories/GHSA-5cgx-vhfp-6cf9
github.com/kubernetes-sigs/secrets-store-csi-driver/issues/378
github.com/kubernetes-sigs/secrets-store-csi-driver/pull/371
groups.google.com/g/kubernetes-secrets-store-csi-driver/c/Cb9cvymTzl4
nvd.nist.gov/vuln/detail/CVE-2020-8568

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