QID 377861

Date Published: 2023-01-03

QID 377861: Kubernetes kubelet Container Uid Changes to Root Vulnerability

Kubernetes is an open-source container-orchestration system for automating deployment, scaling, and management of containerized applications.

Affected version:
Kubelet v1.13.6
Kubelet v1.14.2
QID Detection Logic:(Authenticated)
The QID uses 'kubelet --version' command to check for vulnerable versions of Kubernetes kubelet

Successful exploitation of the vulnerability may allow an attacker to denial of service attack via the kubelet API

CVSS V3 rated as High - 7.8 severity.

CVSS V2 rated as Medium - 4.6 severity.

Solution

For more information please visit 78308

Workaround:
This section lists possible mitigations to use prior to upgrading. Specify runAsUser directives in pods to control the uid a container runs as Specify mustRunAsNonRoot:true directives in pods to prevent starting as root (note this means the attempt to start the container will fail on affected kubelet versions) Downgrade kubelets to v1.14.1 or v1.13.5 as instructed by your Kubernetes distribution.

Vendor References

78308 - github.com/kubernetes/kubernetes/issues/78308

CVEs related to QID 377861

CVE-2019-11245 |

Software Advisories

Advisory ID	Software	Component	Link
78308			github.com/kubernetes/kubernetes/issues/78308

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