gsd-2020-8555
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master's host network (such as link-local or loopback services).
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2020-8555",
    "description": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
    "id": "GSD-2020-8555",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-8555.html",
      "https://access.redhat.com/errata/RHSA-2020:2594",
      "https://access.redhat.com/errata/RHSA-2020:2479",
      "https://access.redhat.com/errata/RHSA-2020:2449",
      "https://access.redhat.com/errata/RHSA-2020:2448",
      "https://access.redhat.com/errata/RHSA-2020:2441",
      "https://access.redhat.com/errata/RHSA-2020:2440",
      "https://linux.oracle.com/cve/CVE-2020-8555.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-8555"
      ],
      "details": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
      "id": "GSD-2020-8555",
      "modified": "2023-12-13T01:21:53.665168Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "AKA": "",
        "ASSIGNER": "security@kubernetes.io",
        "DATE_PUBLIC": "",
        "ID": "CVE-2020-8555",
        "STATE": "PUBLIC",
        "TITLE": "Kubernetes  kube-controller-manager SSRF"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Kubernetes",
                    "version": {
                      "version_data": [
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.15",
                          "version_value": "1.15.12"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.16",
                          "version_value": "1.16.9"
                        },
                        {
                          "platform": "",
                          "version_affected": "\u003c",
                          "version_name": "1.17",
                          "version_value": "1.17.5"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.18.0"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.1"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.2"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.3"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.4"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.5"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.6"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.7"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.8"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.9"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.10"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.11"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.12"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.13"
                        },
                        {
                          "platform": "",
                          "version_affected": "",
                          "version_name": "",
                          "version_value": "1.14"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Kubernetes"
            }
          ]
        }
      },
      "configuration": [],
      "credit": [
        {
          "lang": "eng",
          "value": "Brice Augras from Groupe-Asten and Christophe Hauquiert from Nokia"
        }
      ],
      "data_format": "MITRE",
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        "description_data": [
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            "lang": "eng",
            "value": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 are vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services)."
          }
        ]
      },
      "exploit": [],
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "version": "3.1"
        }
      },
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            "description": [
              {
                "lang": "eng",
                "value": "CWE-918 Server-Side Request Forgery (SSRF)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "[oss-security] 20200601 CVE-2020-8555: Kubernetes: Half-Blind SSRF in kube-controller-manager",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2020/06/01/4"
          },
          {
            "name": "",
            "refsource": "MLIST",
            "url": "https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion"
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            "refsource": "CONFIRM",
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          {
            "name": "FEDORA-2020-aeea04cd13",
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20200724-0005/",
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            "url": "https://security.netapp.com/advisory/ntap-20200724-0005/"
          },
          {
            "name": "[oss-security] 20210504 [kubernetes] CVE-2020-8562: Bypass of Kubernetes API Server proxy TOCTOU",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2021/05/04/8"
          }
        ]
      },
      "solution": [],
      "source": {
        "advisory": "",
        "defect": [
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        ],
        "discovery": "EXTERNAL"
      },
      "work_around": [
        {
          "lang": "eng",
          "value": "Prior to upgrading, this vulnerability can be mitigated by adding endpoint protections on the master or restricting usage of the vulnerable volume types (for example by constraining usage with a PodSecurityPolicy or third-party admission controller such as Gatekeeper) and restricting StorageClass write permissions through RBAC."
        }
      ]
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003cv1.15.11 || \u003e=v1.16.0 \u003cv1.16.9 || \u003e=v1.17.0 \u003cv1.17.5 || =v1.18.0",
          "affected_versions": "All versions before 1.15.11, all versions starting from 1.16.0 before 1.16.9, all versions starting from 1.17.0 before 1.17.5, version 1.18.0",
          "cvss_v2": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-918",
            "CWE-937"
          ],
          "date": "2021-05-04",
          "description": "The Kubernetes kube-controller-manager is vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
          "fixed_versions": [
            "v1.15.11",
            "v1.16.9",
            "v1.17.5",
            "v1.18.1-beta.0"
          ],
          "identifier": "CVE-2020-8555",
          "identifiers": [
            "CVE-2020-8555"
          ],
          "not_impacted": "All versions starting from 1.15.11 before 1.16.0, all versions starting from 1.16.9 before 1.17.0, all versions starting from 1.17.5 before 1.18.0, all versions after 1.18.0",
          "package_slug": "go/github.com/kubernetes/kubernetes",
          "pubdate": "2020-06-05",
          "solution": "Upgrade to versions 1.15.11, 1.16.9, 1.17.5, 1.18.1-beta.0 or above. *Note*: 1.18.1-beta.0 may be an unstable version. Use caution.",
          "title": "Server-Side Request Forgery (SSRF)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8555"
          ],
          "uuid": "49421dfe-0e2d-413e-b572-b20d7a119e7a",
          "versions": [
            {
              "commit": {
                "sha": "38d05c7c415152c9249ad0c553cbbcb86f247a68",
                "tags": [
                  "v1.16.0"
                ],
                "timestamp": "20190913145653"
              },
              "number": "v1.16.0"
            },
            {
              "commit": {
                "sha": "02a9c9f39a18ee40c37835c36c7c80e0797b0d85",
                "tags": [
                  "v1.17.0"
                ],
                "timestamp": "20191206012503"
              },
              "number": "v1.17.0"
            },
            {
              "commit": {
                "sha": "bc19501317000efb086595adb9ad5f3627a6d95a",
                "tags": [
                  "v1.15.11"
                ],
                "timestamp": "20200312205918"
              },
              "number": "v1.15.11"
            },
            {
              "commit": {
                "sha": "6ac870f868255d1d40ce3ac115b62f8d5e02e8a3",
                "tags": [
                  "v1.18.1-beta.0"
                ],
                "timestamp": "20200325144952"
              },
              "number": "v1.18.1-beta.0"
            },
            {
              "commit": {
                "sha": "f6cc41b23ef90243e9dbba5fbad501630caaa737",
                "tags": [
                  "v1.18.0"
                ],
                "timestamp": "20200325144952"
              },
              "number": "v1.18.0"
            },
            {
              "commit": {
                "sha": "270e315bf98d867a302bec5c1d0b9ed045708bf2",
                "tags": [
                  "v1.17.5"
                ],
                "timestamp": "20200416113457"
              },
              "number": "v1.17.5"
            },
            {
              "commit": {
                "sha": "9c4650b12ad33a2a41b0f474ec11c2bf1371658e",
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                  "v1.16.9"
                ],
                "timestamp": "20200416113528"
              },
              "number": "v1.16.9"
            }
          ]
        },
        {
          "affected_range": "\u003e=1.18.0 \u003c1.18.1||\u003e=1.17.0 \u003c1.17.4||\u003e=1.16.0 \u003c1.16.9||\u003c1.15.12",
          "affected_versions": "All versions starting from 1.18.0 before 1.18.1, all versions starting from 1.17.0 before 1.17.4, all versions starting from 1.16.0 before 1.16.9, all versions before 1.15.12",
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          "description": "The Kubernetes kube-controller-manager in versions v1.0-1.14, versions prior to v1.15.12, v1.16.9, v1.17.5, and version v1.18.0 is vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to 500 bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
          "fixed_versions": [
            "1.18.1",
            "1.18.1",
            "1.16.9",
            "1.15.12",
            "1.15.12"
          ],
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            "CVE-2020-8555"
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          "package_slug": "go/github.com/kubernetes/kubernetes/pkg/volume/storageos",
          "pubdate": "2022-02-15",
          "solution": "Upgrade to versions 1.18.1, 1.18.1, 1.16.9, 1.15.12, 1.15.12 or above.",
          "title": "Server-Side Request Forgery (SSRF)",
          "urls": [
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            "https://github.com/kubernetes/kubernetes/issues/91542",
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            "https://groups.google.com/d/topic/kubernetes-security-announce/kEK27tqqs30/discussion",
            "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIFE6ZZZR4LX/",
            "https://security.netapp.com/advisory/ntap-20200724-0005/",
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        },
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          "cwe_ids": [
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            "CWE-918",
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          "description": "The Kubernetes kube-controller-manager is vulnerable to a Server Side Request Forgery (SSRF) that allows certain authorized users to leak up to bytes of arbitrary information from unprotected endpoints within the master\u0027s host network (such as link-local or loopback services).",
          "fixed_versions": [
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            "1.16.9",
            "1.17.5",
            "1.18.1"
          ],
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          "identifiers": [
            "CVE-2020-8555"
          ],
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          "package_slug": "go/k8s.io/kubernetes/pkg/apis/apps/validation",
          "pubdate": "2020-06-05",
          "solution": "Upgrade to version 1.15.11, 1.16.9, 1.17.5, 1.18.1 or above.",
          "title": "Server-Side Request Forgery (SSRF)",
          "urls": [
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          ],
          "uuid": "17a622d8-557c-4209-9a96-aa69e3d747eb"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
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                "cpe23Uri": "cpe:2.3:a:kubernetes:kubernetes:1.18.0:-:*:*:*:*:*:*",
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                "versionEndExcluding": "1.15.11",
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            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 4.0
        }
      },
      "lastModifiedDate": "2022-11-16T03:39Z",
      "publishedDate": "2020-06-05T17:15Z"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
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  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
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  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.