{
  "GSD": {
    "alias": "CVE-2020-8554",
    "description": "Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.",
    "id": "GSD-2020-8554",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-8554.html",
      "https://access.redhat.com/errata/RHSA-2021:0079",
      "https://linux.oracle.com/cve/CVE-2020-8554.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-8554"
      ],
      "details": "Kubernetes API server in all versions allow an attacker who is able to create a ClusterIP service and set the spec.externalIPs field, to intercept traffic to that IP address. Additionally, an attacker who is able to patch the status (which is considered a privileged operation and should not typically be granted to users) of a LoadBalancer service can set the status.loadBalancer.ingress.ip to similar effect.",
      "id": "GSD-2020-8554",
      "modified": "2023-12-13T01:21:54.006371Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@kubernetes.io",
        "DATE_PUBLIC": "2020-12-07T17:00:00.000Z",
        "ID": "CVE-2020-8554",
        "STATE": "PUBLIC",
        "TITLE": "Kubernetes man in the middle using LoadBalancer or ExternalIPs"
      },
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          "vendor_data": [
            {
              "product": {
                "product_data": [
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                    "version": {
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                          "version_affected": "=",
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            }
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      },
      "credit": [
        {
          "lang": "eng",
          "value": "Etienne Champetier (@champtar) of Anevia"
        }
      ],
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      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
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        }
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                "value": "CWE-283 Unverified Ownership"
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            "name": "https://www.oracle.com//security-alerts/cpujul2021.html",
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          "lang": "eng",
          "value": "To restrict the use of external IPs we are providing an admission webhook container: k8s.gcr.io/multitenancy/externalip-webhook:v1.0.0. The source code and deployment instructions are published at https://github.com/kubernetes-sigs/externalip-webhook.\n\nAlternatively, external IPs can be restricted using OPA Gatekeeper. A sample ConstraintTemplate and Constraint can be found here: https://github.com/open-policy-agent/gatekeeper-library/tree/master/library/general/externalip."
        }
      ]
    },
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            "version": "3.1"
          },
          "exploitabilityScore": 1.6,
          "impactScore": 3.4
        }
      },
      "lastModifiedDate": "2022-10-29T02:41Z",
      "publishedDate": "2021-01-21T17:15Z"
    }
  }
}