Ceph RBD adminSecrets exposed in logs when loglevel >= 4
Priority LOW 25CWE-532Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 2 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-532.
Summary
In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager's logs during provisioning of Ceph RBD persistent claims. This affects < v1.19.3, < v1.18.10, < v1.17.13.
Why it matters now
EPSS 0.00526 44th percentileScored 2026-11-07
Fix Partial Kubernetes (Kubernetes): 1.19.3, 1.18.10, 1.17.13github.com/kubernetes/kubernetes (Go): 1.17.13, 1.18.10, 1.19.3Red Hat: 2 advisoriesRed Hat: 2 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Kubernetes | Kubernetes | before 1.19.3; before 1.18.10; before 1.17.13 | 1.19.3, 1.18.10, 1.17.13 | Patch available | CNA |
| — | github.com/kubernetes/kubernetes (Go) | before 1.17.13 | 1.17.13 | Patch available | GHSA-5x96-j797-5qqw |
| — | github.com/kubernetes/kubernetes (Go) | 1.18.0 to before 1.18.10 | 1.18.10 | Patch available | GHSA-5x96-j797-5qqw |
| — | github.com/kubernetes/kubernetes (Go) | 1.19.0 to before 1.19.3 | 1.19.3 | Patch available | GHSA-5x96-j797-5qqw |
- Kubernetes VendorKubernetes Affected before 1.19.3; before 1.18.10; before 1.17.13 Fixed in 1.19.3, 1.18.10, 1.17.13 Patch available CNA
- github.com/kubernetes/kubernetes (Go) Vendor— Affected before 1.17.13 Fixed in 1.17.13 Patch available GHSA-5x96-j797-5qqw
- github.com/kubernetes/kubernetes (Go) Vendor— Affected 1.18.0 to before 1.18.10 Fixed in 1.18.10 Patch available GHSA-5x96-j797-5qqw
- github.com/kubernetes/kubernetes (Go) Vendor— Affected 1.19.0 to before 1.19.3 Fixed in 1.19.3 Patch available GHSA-5x96-j797-5qqw
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* | 1.17.0 to before 1.17.13; 1.18.0 to before 1.18.10; 1.19.0 to before 1.19.3 | Vulnerable | Kubernetes |
- cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:* Versions 1.17.0 to before 1.17.13; 1.18.0 to before 1.18.10; 1.19.0 to before 1.19.3 Vulnerable ·Kubernetes
Remediation
- Fix · CNA Kubernetes (Kubernetes) Fixed in 1.19.3, 1.18.10, 1.17.13
- Fix · GHSA-5x96-j797-5qqw github.com/kubernetes/kubernetes (Go) Fixed in 1.17.13 Advisory →
- Fix · GHSA-5x96-j797-5qqw github.com/kubernetes/kubernetes (Go) Fixed in 1.18.10 Advisory →
- Fix · GHSA-5x96-j797-5qqw github.com/kubernetes/kubernetes (Go) Fixed in 1.19.3 Advisory →
Red Hat 2 advisories
- RHSA-2020:5634 Released 2021-02-24 · Red Hat rating ModerateOpenShift Container Platform 4.7.0 packages security update
- Red Hat OpenShift Container Platform 4.7 cri-o-1.20.0-0.rhaos4.7.git8921e00.el7.51, cri-o-1.20.0-0.rhaos4.7.git8921e00.el8.51, cri-tools-1.18.0-3.el7 +9
- RHSA-2021:0037 Released 2021-01-18 · Red Hat rating ModerateOpenShift Container Platform 4.6.12 bug fix and security update
- Red Hat OpenShift Container Platform 4.6 openshift4/ose-aws-ebs-csi-driver-rhel8, openshift4/ose-aws-ebs-csi-driver-rhel8-operator, openshift4/ose-aws-machine-controllers +47
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 3.11 | Affected | No fix planned: Will not fix |
| Red Hat OpenShift Container Platform 4.6 | Fixed | RHSA-2021:0037 |
| Red Hat OpenShift Container Platform 4.7 | Fixed | RHSA-2020:5634 |
Not affected: 3 products
- Red Hat OpenShift Container Platform 4.6
- Red Hat OpenShift Container Platform 4.7
- Red Hat Storage 3
Timeline
- 2026-10-02 Threatist record created from CVE-2020-8566
- 2026-10-03 Alias added: GHSA-5x96-j797-5qqw
References
Advisory 3
Other 6
- https://github.com/kubernetes/kubernetes/pull/95245
- https://github.com/kubernetes/kubernetes/pull/95245/commits/e91ec4fad3366d2dee020919f7c2a0d7b52fd3ea
- https://bugzilla.redhat.com/show_bug.cgi?id=1886640
- https://github.com/kubernetes/kubernetes
- https://groups.google.com/g/kubernetes-announce/c/ScdmyORnPDk
- https://security.netapp.com/advisory/ntap-20210122-0006
More Kubernetes vulnerabilities
- TI-2018-16130 Improper privilege management in Kubernetes CVSS 3.0CRITICAL 9.8
- TI-2019-08418 Kubernetes kubelet exposes /debug/pprof info on healthz port CVSS 3.1HIGH 8.2
- TI-2023-05086 Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation CVSS 3.1HIGH 8.8
- TI-2023-03433 Kubernetes - Windows nodes - Insufficient input sanitization leads to privilege escalation CVSS 3.1HIGH 8.8
- TI-2023-02285 Bypass of seccomp profile enforcement CVSS 3.1MEDIUM 5.5
- TI-2017-14755 Link following in Kubernetes CVSS 3.0CRITICAL 9.6
Sources
- CVE-2020-8566 · CVE Program
- CVE-2020-8566 · NVD
- FIRST EPSS
- GHSA-5x96-j797-5qqw · GitHub Advisory Database · CC BY 4.0
- CVE-2020-8566 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences