{
    "CVE_data_meta": {
        "ASSIGNER": "security@kubernetes.io",
        "DATE_PUBLIC": "2021-09-15T21:15:00.000Z",
        "ID": "CVE-2020-8561",
        "STATE": "PUBLIC",
        "TITLE": "Webhook redirect in kube-apiserver"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Kubernetes",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<=",
                                            "version_value": "1.20.11"
                                        },
                                        {
                                            "version_affected": ">?",
                                            "version_value": "1.20.11"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_value": "1.21.5"
                                        },
                                        {
                                            "version_affected": ">?",
                                            "version_value": "1.21.5"
                                        },
                                        {
                                            "version_affected": "<=",
                                            "version_value": "1.22.2"
                                        },
                                        {
                                            "version_affected": ">?",
                                            "version_value": "1.22.2"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Kubernetes"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "QiQi Xu"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "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."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.1,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-441 Unintended Proxy or Intermediary"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY",
                "name": "https://groups.google.com/g/kubernetes-security-announce/c/RV2IhwcrQsY"
            },
            {
                "refsource": "MISC",
                "url": "https://github.com/kubernetes/kubernetes/issues/104720",
                "name": "https://github.com/kubernetes/kubernetes/issues/104720"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20211014-0002/",
                "url": "https://security.netapp.com/advisory/ntap-20211014-0002/"
            }
        ]
    },
    "source": {
        "defect": [
            "https://github.com/kubernetes/kubernetes/issues/104720"
        ],
        "discovery": "EXTERNAL"
    }
}