CVE-2021-32001

K3s/RKE2 bootstrap data is encrypted with empty string if user does not supply a token

Published Jul 28, 2021 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
K3s in SUSE Rancher allows any user with direct access to the datastore, or a copy of a datastore backup, to extract the cluster's confidential keying material (cluster certificate authority private keys, secrets encryption configuration passphrase, etc.) and decrypt it, without having to know the token value. This issue affects: SUSE Rancher K3s version v1.19.12+k3s1, v1.20.8+k3s1, v1.21.2+k3s1 and prior versions; RKE2 version v1.19.12+rke2r1, v1.20.8+rke2r1, v1.21.2+rke2r1 and prior versions.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-18871 K3s in SUSE Rancher allows any user with direct access to the datastore, or a copy of a datastore backup, to extract the cluster's confidential keying material (cluster certificate authority private keys, secrets encryption configuration passphrase, etc.) and decrypt it, without having to know the token value. This issue affects: SUSE Rancher K3s version v1.19.12+k3s1, v1.20.8+k3s1, v1.21.2+k3s1 and prior versions; RKE2 version v1.19.12+rke2r1, v1.20.8+rke2r1, v1.21.2+rke2r1 and prior versions.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
suse
Published
Updated
Sep 16, 2024, 10:10 PM
Reserved
May 3, 2021, 12:00 AM
Status
Modified
Published
Jul 28, 2021, 10:15 AM
Modified
Jun 17, 2026, 3:52 AM