Information disclosure in Kubernetes
CVE-2020-8565
In Kubernetes, if the logging level is set to at least 9, authorization and bearer tokens will be written to log files. This can occur both in API server logs and client tool output like kubectl. This affects <= v1.19.3, <= v1.18.10, <= v1.17.13, < v1.20.0-alpha2.
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 (41.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.9% 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/95623 (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8565?
- CVE-2020-8565 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-2020-8565?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2020-8565 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.