Information disclosure in Kubernetes
CVE-2020-8566
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (42.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Kubernetes — versions < 1.19.3, < 1.18.10, < 1.17.13
Weakness classification (CWE)
Public proof-of-concept exploits
References
- groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ (mailing-list, Patch, Mailing List, Third Party Advisory)
- github.com/kubernetes/kubernetes/issues/95624 (Third Party Advisory)
- security.netapp.com/advisory/ntap-20210122-0006/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8566?
- CVE-2020-8566 is a medium-severity vulnerability in Kubernetes, classified under Insertion of Sensitive Information into Log File. CVSS score: 4.7/10. Published 2020-12-07.
- How severe is CVE-2020-8566?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2020-8566 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.