CVE-2020-8561

A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.

References

Affected packages

Git / github.com/kubernetes/kubelet

Affected ranges

Type

GIT

Repo

https://github.com/kubernetes/kubelet

Events

Introduced

544b7f5b5cd8483cc60cd1844269b9a49ebc9c93

Last affected

e9e6d137615cdf3f1f03baeee8ddc8601fc7e79a

Database specific

{
    "cpe": [
        "cpe:2.3:a:kubernetes:kubernetes:1.20.11:-:*:*:*:*:*:*",
        "cpe:2.3:a:kubernetes:kubernetes:1.21.5:-:*:*:*:*:*:*",
        "cpe:2.3:a:kubernetes:kubernetes:1.22.2:-:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "1.20.11-NA"
        },
        {
            "last_affected": "1.20.11-NA"
        },
        {
            "introduced": "1.21.5-NA"
        },
        {
            "last_affected": "1.21.5-NA"
        },
        {
            "introduced": "1.22.2-NA"
        },
        {
            "last_affected": "1.22.2-NA"
        }
    ],
    "source": "CPE_STRING"
}

Affected versions

1.*

1.20.11-NA

1.21.5-NA

1.22.2-NA

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8561.json"

Git / github.com/kubernetes/kubernetes