Vulnerability-Lookup

CVE-2020-8558 (GCVE-0-2020-8558)

Vulnerability from cvelistv5 – Published: 2020-07-27 19:55 – Updated: 2024-09-16 22:40

Title

Kubernetes node setting allows for neighboring hosts to bypass localhost boundary

Summary

The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node's network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.

Severity ?

5.4 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE

CWE-420 - Unprotected Alternate Channel

Assigner

kubernetes

References

URL

Tags

	https://github.com/kubernetes/kubernetes/issues/92315	x_refsource_CONFIRM
	https://groups.google.com/g/kubernetes-announce/c…	mailing-listx_refsource_MLIST
	https://security.netapp.com/advisory/ntap-2020082…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	Kubernetes	Kubernetes	Affected: prior to 1.18.4 Affected: prior to 1.17.7 Affected: prior to 1.16.11 Affected: 1.15 Affected: 1.14 Affected: 1.13 Affected: 1.12 Affected: 1.11 Affected: 1.10 Affected: 1.9 Affected: 1.8 Affected: 1.7 Affected: 1.6 Affected: 1.5 Affected: 1.4 Affected: 1.3 Affected: 1.2 Affected: 1.1

Credits

János Kövér, Ericsson Additional impacts reported by Rory McCune, NCC Group and Yuval Avrahami and Ariel Zelivansky, Palo Alto Networks

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T10:03:46.112Z",
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        }
      ],
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      "providerMetadata": {
        "dateUpdated": "2020-08-21T09:06:15.000Z",
        "orgId": "a6081bf6-c852-4425-ad4f-a67919267565",
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          "url": "https://security.netapp.com/advisory/ntap-20200821-0001/"
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        "defect": [
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        "discovery": "USER"
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      "title": "Kubernetes node setting allows for neighboring hosts to bypass localhost boundary",
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        "affects": {
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                          {
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                          {
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                          {
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            },
            {
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          ],
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  "cveMetadata": {
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    "dateUpdated": "2024-09-16T22:40:40.949Z",
    "state": "PUBLISHED"
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}

GHSA-WQV3-8CM6-H6WG

Vulnerability from github – Published: 2022-02-15 01:57 – Updated: 2023-01-06 22:23

Summary

Improper Authentication in Kubernetes

Details

A security issue was discovered in the Kubelet and kube-proxy components of Kubernetes which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node's network namespace. For example, if a cluster administrator runs a TCP service on a node that listens on 127.0.0.1:1234, because of this bug, that service would be potentially reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service. If the example service on port 1234 required no additional authentication (because it assumed that only other localhost processes could reach it), then it could be vulnerable to attacks that make use of this bug.

Severity ?

8.8 (High)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.18.0"
            },
            {
              "fixed": "1.18.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.17.0"
            },
            {
              "fixed": "1.17.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "k8s.io/kubernetes"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.16.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-8558"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-420"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-24T19:30:36Z",
    "nvd_published_at": "2020-07-27T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "A security issue was discovered in the Kubelet and kube-proxy components of Kubernetes which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node\u0027s network namespace. For example, if a cluster administrator runs a TCP service on a node that listens on 127.0.0.1:1234, because of this bug, that service would be potentially reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service. If the example service on port 1234 required no additional authentication (because it assumed that only other localhost processes could reach it), then it could be vulnerable to attacks that make use of this bug.",
  "id": "GHSA-wqv3-8cm6-h6wg",
  "modified": "2023-01-06T22:23:41Z",
  "published": "2022-02-15T01:57:18Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/bottlerocket-os/bottlerocket/security/advisories/GHSA-wqv3-8cm6-h6wg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8558"
    },
    {
      "type": "WEB",
      "url": "https://github.com/kubernetes/kubernetes/issues/92315"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1843358"
    },
    {
      "type": "WEB",
      "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8558"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/kubernetes/kubernetes"
    },
    {
      "type": "WEB",
      "url": "https://github.com/tabbysable/POC-2020-8558"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/kubernetes-security-announce/c/B1VegbBDMTE"
    },
    {
      "type": "WEB",
      "url": "https://labs.bishopfox.com/tech-blog/bad-pods-kubernetes-pod-privilege-escalation"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20200821-0001"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2020/07/08/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Improper Authentication in Kubernetes"
}

GSD-2020-8558

Vulnerability from gsd - Updated: 2023-12-13 01:21

Details

Aliases

CVE-2020-8558

Aliases

CVE-2020-8558

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2020-8558",
    "description": "The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node\u0027s network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.",
    "id": "GSD-2020-8558",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-8558.html",
      "https://access.redhat.com/errata/RHSA-2020:3184",
      "https://access.redhat.com/errata/RHSA-2020:3183",
      "https://access.redhat.com/errata/RHSA-2020:2992",
      "https://access.redhat.com/errata/RHSA-2020:2927",
      "https://access.redhat.com/errata/RHSA-2020:2926",
      "https://access.redhat.com/errata/RHSA-2020:2413",
      "https://access.redhat.com/errata/RHSA-2020:2412"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "aliases": [
        "CVE-2020-8558"
      ],
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      "id": "GSD-2020-8558",
      "modified": "2023-12-13T01:21:54.061105Z",
      "schema_version": "1.4.0"
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      },
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                        },
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                        },
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                          "version_value": "1.4"
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                          "version_value": "1.1"
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      },
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        },
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          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-420 Unprotected Alternate Channel"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/kubernetes/kubernetes/issues/92315",
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          },
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            "name": "[Security Advisory] CVE-2020-8558: Kubernetes: Node setting allows for neighboring hosts to bypass localhost boundary",
            "refsource": "MLIST",
            "url": "https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20200821-0001/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20200821-0001/"
          }
        ]
      },
      "source": {
        "defect": [
          "https://github.com/kubernetes/kubernetes/issues/90259"
        ],
        "discovery": "USER"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=v1.1.0 \u003c=v1.16.10 || \u003e=v1.17.0 \u003c=v1.17.6 || \u003e=v1.18.0 \u003c=v1.18.3",
          "affected_versions": "All versions starting from 1.1.0 up to 1.16.10, all versions starting from 1.17.0 up to 1.17.6, all versions starting from 1.18.0 up to 1.18.3",
          "cvss_v2": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
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            "CWE-287",
            "CWE-937"
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          "description": "kube-proxy was found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to localhost running on the node or in the node\u0027s network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.",
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            "v1.16.11-rc.0",
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            "v1.18.4-rc.0"
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          "identifier": "CVE-2020-8558",
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          "solution": "Upgrade to versions 1.16.11-rc.0, 1.17.7-rc.0, 1.18.4-rc.0 or above. *Note*: 1.16.11-rc.0, 1.17.7-rc.0, and 1.18.4-rc.0 may be unstable versions. Use caution.",
          "title": "Improper Authentication",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8558"
          ],
          "uuid": "e034728e-a601-4cc8-ab9e-827eff833d3d",
          "versions": [
            {
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                "sha": "d583f27844a826ea8072afa128a53fb0dd307869",
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                  "kubernetes-1.17.0"
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            {
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                "timestamp": "20200520231615"
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            {
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                "timestamp": "20200520231706"
              },
              "number": "v1.17.6"
            },
            {
              "commit": {
                "sha": "09ae2e434c1267e96e798c84be7dcc04c0b17b52",
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                  "kubernetes-1.17.7-rc.0"
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                "timestamp": "20200520231708"
              },
              "number": "v1.17.7-rc.0"
            }
          ]
        },
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          "affected_range": "\u003e=1.18.0 \u003c1.18.4||\u003e=1.17.0 \u003c1.17.7||\u003c1.16.11",
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          "cvss_v2": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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          "description": "The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node\u0027s network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.",
          "fixed_versions": [
            "1.18.4",
            "1.16.11",
            "1.16.11"
          ],
          "identifier": "CVE-2020-8558",
          "identifiers": [
            "GHSA-wqv3-8cm6-h6wg",
            "CVE-2020-8558"
          ],
          "not_impacted": "All versions before 1.18.0, all versions starting from 1.18.4, all versions before 1.17.0, all versions starting from 1.16.11 before 1.17.7",
          "package_slug": "go/k8s.io/kube-proxy",
          "pubdate": "2022-02-15",
          "solution": "Upgrade to versions 1.18.4, 1.16.11, 1.16.11 or above.",
          "title": "Improper Authentication",
          "urls": [
            "https://github.com/bottlerocket-os/bottlerocket/security/advisories/GHSA-wqv3-8cm6-h6wg",
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8558",
            "https://github.com/kubernetes/kubernetes/issues/92315",
            "https://bugzilla.redhat.com/show_bug.cgi?id=1843358",
            "https://github.com/tabbysable/POC-2020-8558",
            "https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ",
            "https://groups.google.com/g/kubernetes-security-announce/c/B1VegbBDMTE",
            "https://labs.bishopfox.com/tech-blog/bad-pods-kubernetes-pod-privilege-escalation",
            "https://security.netapp.com/advisory/ntap-20200821-0001/",
            "https://github.com/advisories/GHSA-wqv3-8cm6-h6wg"
          ],
          "uuid": "457f0565-501f-412f-8332-a24147087eae"
        },
        {
          "affected_range": "\u003c1.16.11||\u003e=1.17.0 \u003c1.17.7||\u003e=1.18.0 \u003c1.18.4",
          "affected_versions": "All versions before 1.16.11, all versions starting from 1.17.0 before 1.17.7, all versions starting from 1.18.0 before 1.18.4",
          "cvss_v2": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2023-01-06",
          "description": "The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node\u0027s network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.",
          "fixed_versions": [
            "1.17.7",
            "1.18.4",
            "1.16.11"
          ],
          "identifier": "CVE-2020-8558",
          "identifiers": [
            "GHSA-wqv3-8cm6-h6wg",
            "CVE-2020-8558"
          ],
          "not_impacted": "All versions starting from 1.16.11 before 1.17.0, all versions starting from 1.17.7 before 1.18.0, all versions starting from 1.18.4",
          "package_slug": "go/k8s.io/kubernetes",
          "pubdate": "2022-02-15",
          "solution": "Upgrade to versions 1.17.7, 1.18.4, 1.16.11 or above.",
          "title": "Improper Authentication in Kubernetes",
          "urls": [
            "https://github.com/bottlerocket-os/bottlerocket/security/advisories/GHSA-wqv3-8cm6-h6wg",
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            "https://github.com/kubernetes/kubernetes/issues/92315",
            "https://bugzilla.redhat.com/show_bug.cgi?id=1843358",
            "https://github.com/tabbysable/POC-2020-8558",
            "https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ",
            "https://groups.google.com/g/kubernetes-security-announce/c/B1VegbBDMTE",
            "https://labs.bishopfox.com/tech-blog/bad-pods-kubernetes-pod-privilege-escalation",
            "https://security.netapp.com/advisory/ntap-20200821-0001/",
            "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8558",
            "https://www.openwall.com/lists/oss-security/2020/07/08/1",
            "https://github.com/advisories/GHSA-wqv3-8cm6-h6wg"
          ],
          "uuid": "b45127b8-fd26-4e9c-a53e-81e8e41b05f3"
        },
        {
          "affected_range": "\u003e=1.1.0 \u003c=1.16.10||\u003e=1.17.0 \u003c=1.17.6||\u003e=1.18.0 \u003c=1.18.3",
          "affected_versions": "All versions starting from 1.1.0 up to 1.16.10, all versions starting from 1.17.0 up to 1.17.6, all versions starting from 1.18.0 up to 1.18.3",
          "cvss_v2": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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            "CWE-287",
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          ],
          "date": "2020-08-21",
          "description": "The Kubelet and kube-proxy components were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to running on the node or in the node\u0027s network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service.",
          "fixed_versions": [
            "1.16.11",
            "1.17.7",
            "1.18.4"
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          "identifier": "CVE-2020-8558",
          "identifiers": [
            "CVE-2020-8558"
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          "not_impacted": "All versions starting from 1.16.11 before 1.17.6, all versions starting from 1.17.7 before 1.18.3, all versions starting from 1.18.4",
          "package_slug": "go/k8s.io/kubernetes/pkg/apis/apps/validation",
          "pubdate": "2020-07-27",
          "solution": "Upgrade to version 1.16.11, 1.17.7, 1.18.4 or above.",
          "title": "Improper Authentication",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8558"
          ],
          "uuid": "29831df3-8f66-4a00-84f2-eef73ba403e1"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "1.17.6",
                "versionStartIncluding": "1.17.0",
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              {
                "cpe23Uri": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
                "cpe_name": [],
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                "cpe_name": [],
                "versionEndIncluding": "1.16.10",
                "versionStartIncluding": "1.1.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
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            }
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                "Mailing List",
                "Mitigation",
                "Third Party Advisory"
              ],
              "url": "https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ"
            },
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              "tags": [
                "Third Party Advisory"
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            }
          ]
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      },
      "impact": {
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          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 6.5,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
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            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-09-20T17:17Z",
      "publishedDate": "2020-07-27T20:15Z"
    }
  }
}

FKIE_CVE-2020-8558

Vulnerability from fkie_nvd - Published: 2020-07-27 20:15 - Updated: 2024-11-21 05:39

Severity ?

5.4 (Medium) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
8.8 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

URL	Tags
jordan@liggitt.net	https://github.com/kubernetes/kubernetes/issues/92315	Exploit, Mitigation, Patch, Third Party Advisory
jordan@liggitt.net	https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ	Exploit, Mailing List, Mitigation, Third Party Advisory
jordan@liggitt.net	https://security.netapp.com/advisory/ntap-20200821-0001/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/kubernetes/kubernetes/issues/92315	Exploit, Mitigation, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ	Exploit, Mailing List, Mitigation, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.netapp.com/advisory/ntap-20200821-0001/	Third Party Advisory

Impacted products

Vendor	Product	Version
kubernetes	kubernetes	*
kubernetes	kubernetes	*
kubernetes	kubernetes	*

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9586C74C-1239-4E96-89A6-F618D14EF889",
              "versionEndIncluding": "1.16.10",
              "versionStartIncluding": "1.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F7D0C82A-F13C-4D41-854D-51234D20873E",
              "versionEndIncluding": "1.17.6",
              "versionStartIncluding": "1.17.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FDA694A4-8EC3-47E1-A1F3-CF083D894371",
              "versionEndIncluding": "1.18.3",
              "versionStartIncluding": "1.18.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Kubelet and kube-proxy components in versions 1.1.0-1.16.10, 1.17.0-1.17.6, and 1.18.0-1.18.3 were found to contain a security issue which allows adjacent hosts to reach TCP and UDP services bound to 127.0.0.1 running on the node or in the node\u0027s network namespace. Such a service is generally thought to be reachable only by other processes on the same host, but due to this defeect, could be reachable by other hosts on the same LAN as the node, or by containers running on the same node as the service."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 que los componentes Kubelet y kube-proxy en las versiones 1.1.0-1.16.10, 1.17.0-1.17.6 y 1.18.0-1.18.3, contienen un problema de seguridad que permite a los hosts adyacentes alcanzar los servicios TCP y UDP vinculados a la versi\u00f3n 127.0.0.1, que se ejecutan en el nodo o en el espacio de nombres de red del nodo. Dicho servicio se considera generalmente que puede ser alcanzado solo por otros procesos en el mismo host, pero debido a esta defensa, podr\u00edan ser alcanzados por otros hosts en la misma LAN que el nodo o por contenedores que se ejecutan en el mismo nodo que el servicio"
    }
  ],
  "id": "CVE-2020-8558",
  "lastModified": "2024-11-21T05:39:01.790",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 6.5,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.5,
        "source": "jordan@liggitt.net",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-07-27T20:15:12.413",
  "references": [
    {
      "source": "jordan@liggitt.net",
      "tags": [
        "Exploit",
        "Mitigation",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/kubernetes/kubernetes/issues/92315"
    },
    {
      "source": "jordan@liggitt.net",
      "tags": [
        "Exploit",
        "Mailing List",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ"
    },
    {
      "source": "jordan@liggitt.net",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20200821-0001/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mitigation",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/kubernetes/kubernetes/issues/92315"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Mailing List",
        "Mitigation",
        "Third Party Advisory"
      ],
      "url": "https://groups.google.com/g/kubernetes-announce/c/sI4KmlH3S2I/m/TljjxOBvBQAJ"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20200821-0001/"
    }
  ],
  "sourceIdentifier": "jordan@liggitt.net",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-420"
        }
      ],
      "source": "jordan@liggitt.net",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2020-8558 (GCVE-0-2020-8558)

GHSA-WQV3-8CM6-H6WG

GSD-2020-8558

FKIE_CVE-2020-8558

Tags

Sightings

Nomenclature