Vulnerability · Published Dec 7, 2020 · Assigned by kubernetes
CVE-2020-8564Docker config secrets leaked when file is malformed and loglevel >= 4
Medium 4.7
In plain English
A medium-severity sensitive data in logs in Kubernetes from Kubernetes. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.5%top 59.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In Kubernetes clusters using a logging level of at least 4, processing a malformed docker config file will result in the contents of the docker config file being leaked, which can include pull secrets or other registry credentials. This affects < v1.19.3, < v1.18.10, < v1.17.13.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | kubernetes | 1.19.3-1 | DEBIAN-CVE-2020-8564 |
| Debian:13 | kubernetes | 1.19.3-1 | DEBIAN-CVE-2020-8564 |
| Debian:14 | kubernetes | 1.19.3-1 | DEBIAN-CVE-2020-8564 |
| Go | github.com/kubernetes/kubernetes | 1.19.3 | GHSA-8mjg-8c8g-6h85 |
| Go | github.com/kubernetes/kubernetes | 1.18.10 | GHSA-8mjg-8c8g-6h85 |
| Go | github.com/kubernetes/kubernetes | 1.17.13 | GHSA-8mjg-8c8g-6h85 |
| Go | k8s.io/kubernetes | 1.20.0-alpha.1 | GO-2021-0066 |
| Go | k8s.io/kubernetes | 1.20.0-alpha.1 | GHSA-8mjg-8c8g-6h85 |
| Ubuntu:22.04:LTS | kubernetes | no fix listed | UBUNTU-CVE-2020-8564 |
| Ubuntu:24.04:LTS | kubernetes | no fix listed | UBUNTU-CVE-2020-8564 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Kubernetes | Kubernetes | < 1.19.3< 1.18.10< 1.17.13 |
Weakness: CWE-532 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- Multiple secret leaks when verbose logging is enabled mailing-list, x_refsource_MLIST
- https://github.com/kubernetes/kubernetes/issues/95622 x_refsource_CONFIRM
- https://security.netapp.com/advisory/ntap-20210122-0006/ x_refsource_CONFIRM