Vulnerability · Published Dec 7, 2020 · Assigned by kubernetes
CVE-2020-8563Secret leaks in logs for vSphere Provider kube-controller-manager
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 46% 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 54.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In Kubernetes clusters using VSphere as a cloud provider, with a logging level set to 4 or above, VSphere cloud credentials will be leaked in the cloud controller manager's log. This affects < v1.19.3.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/kubernetes/kubernetes | 1.19.3 | GHSA-5xfg-wv98-264m |
| Go | k8s.io/kubernetes | 1.19.3 | GO-2024-2755 |
| Ubuntu:22.04:LTS | kubernetes | no fix listed | UBUNTU-CVE-2020-8563 |
| Ubuntu:24.04:LTS | kubernetes | no fix listed | UBUNTU-CVE-2020-8563 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Kubernetes | Kubernetes | < 1.19.3 |
Weakness: CWE-532 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://github.com/kubernetes/kubernetes/issues/95621 x_refsource_CONFIRM
- Multiple secret leaks when verbose logging is enabled mailing-list, x_refsource_MLIST
- https://security.netapp.com/advisory/ntap-20210122-0006/ x_refsource_CONFIRM