QID 730928

Date Published: 2023-10-11

QID 730928: Kubernetes Kubelet Missing Authorization Vulnerability

The debugging endpoint /debug/pprof is exposed over the unauthenticated Kubelet healthz port. The go pprof endpoint is exposed over the Kubelet's healthz port. This debugging endpoint can potentially leak sensitive information such as internal Kubelet memory addresses and configuration, or for limited denial of service. Versions prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10 are affected. The issue is of medium severity, but not exposed by the default configuration.

Affected Versions
Kubernetes Kublet prior to 1.15.0, 1.14.4, 1.13.8, and 1.12.10

QID Detection Logic 9Un-Auth)
This qid sends GET request to /debug/pprof/ path and checks for exposure to Types of profiles available.

On successful exploitation it leads to exposing sensitive information.

CVSS V3 rated as Critical - 8.2 severity.

CVSS V2 rated as High - 6.4 severity.

Solution

Vendor has released fix to this issue. More information can be found here.

Vendor References

CVE-2019-11248 - github.com/kubernetes/kubernetes/issues/81023

CVEs related to QID 730928

CVE-2019-11248 |

Software Advisories

Advisory ID	Software	Component	Link
CVE-2019-11248			github.com/kubernetes/kubernetes/issues/81023

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