K3s/RKE2 bootstrap data is encrypted with empty string if user does not supply a token (SUSE Rancher)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.30 % · percentile 23 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- suse
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-311 — Missing Encryption of Sensitive Data
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | suse |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | NVD · meissner@suse.de (Secondary) |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-18871
- GCVE · GCVE-0-2021-32001
Affected configurations (NVD CPE)
cpe:2.3:a:suse:rancher_k3s:1.19.12:*:*:*:*:*:*:*cpe:2.3:a:suse:rancher_k3s:1.20.8:*:*:*:*:*:*:*cpe:2.3:a:suse:rancher_k3s:1.21.2:*:*:*:*:*:*:*cpe:2.3:a:suse:rancher_rke2:1.19.12:*:*:*:*:*:*:*cpe:2.3:a:suse:rancher_rke2:1.20.8:*:*:*:*:*:*:*cpe:2.3:a:suse:rancher_rke2:1.21.2:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| SUSE · Rancher | affected K3s ≤ v1.19.12+k3s1, v1.20.8+k3s1, v1.21.2+k3s1 |
| SUSE · Rancher | affected RKE2 ≤ v1.19.12+rke2r1, v1.20.8+rke2r1, v1.21.2+rke2r1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |