CVE-2020-8566 (GCVE-0-2020-8566)

Vulnerability from cvelistv5 – Published: 2020-12-07 22:00 – Updated: 2024-09-16 20:17
VLAI
Title
Ceph RBD adminSecrets exposed in logs when loglevel >= 4
Summary
In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager's logs during provisioning of Ceph RBD persistent claims. This affects < v1.19.3, < v1.18.10, < v1.17.13.
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-532 - Information Exposure Through Log Files
Assigner
References
Impacted products
Vendor Product Version
Kubernetes Kubernetes Affected: < 1.19.3
Affected: < 1.18.10
Affected: < 1.17.13
Create a notification for this product.
Date Public
2020-10-15 00:00
Credits
Kaizhe Huang (derek0405)
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T10:03:46.087Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "Multiple secret leaks when verbose logging is enabled",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/kubernetes/kubernetes/issues/95624"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210122-0006/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Kubernetes",
          "vendor": "Kubernetes",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.19.3"
            },
            {
              "status": "affected",
              "version": "\u003c 1.18.10"
            },
            {
              "status": "affected",
              "version": "\u003c 1.17.13"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Kaizhe Huang (derek0405)"
        }
      ],
      "datePublic": "2020-10-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager\u0027s logs during provisioning of Ceph RBD persistent claims. This affects \u003c v1.19.3, \u003c v1.18.10, \u003c v1.17.13."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-532",
              "description": "CWE-532 Information Exposure Through Log Files",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-01-22T12:06:20.000Z",
        "orgId": "a6081bf6-c852-4425-ad4f-a67919267565",
        "shortName": "kubernetes"
      },
      "references": [
        {
          "name": "Multiple secret leaks when verbose logging is enabled",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/kubernetes/kubernetes/issues/95624"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210122-0006/"
        }
      ],
      "source": {
        "defect": [
          "https://github.com/kubernetes/kubernetes/issues/95624"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Ceph RBD adminSecrets exposed in logs when loglevel \u003e= 4",
      "workarounds": [
        {
          "lang": "en",
          "value": "Do not enable verbose logging in production (log level \u003e= 4), limit access to logs."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@kubernetes.io",
          "DATE_PUBLIC": "2020-10-15T04:00:00.000Z",
          "ID": "CVE-2020-8566",
          "STATE": "PUBLIC",
          "TITLE": "Ceph RBD adminSecrets exposed in logs when loglevel \u003e= 4"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Kubernetes",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 1.19.3"
                          },
                          {
                            "version_value": "\u003c 1.18.10"
                          },
                          {
                            "version_value": "\u003c 1.17.13"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Kubernetes"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Kaizhe Huang (derek0405)"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager\u0027s logs during provisioning of Ceph RBD persistent claims. This affects \u003c v1.19.3, \u003c v1.18.10, \u003c v1.17.13."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-532 Information Exposure Through Log Files"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "Multiple secret leaks when verbose logging is enabled",
              "refsource": "MLIST",
              "url": "https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ"
            },
            {
              "name": "https://github.com/kubernetes/kubernetes/issues/95624",
              "refsource": "CONFIRM",
              "url": "https://github.com/kubernetes/kubernetes/issues/95624"
            },
            {
              "name": "https://security.netapp.com/advisory/ntap-20210122-0006/",
              "refsource": "CONFIRM",
              "url": "https://security.netapp.com/advisory/ntap-20210122-0006/"
            }
          ]
        },
        "source": {
          "defect": [
            "https://github.com/kubernetes/kubernetes/issues/95624"
          ],
          "discovery": "EXTERNAL"
        },
        "work_around": [
          {
            "lang": "en",
            "value": "Do not enable verbose logging in production (log level \u003e= 4), limit access to logs."
          }
        ]
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a6081bf6-c852-4425-ad4f-a67919267565",
    "assignerShortName": "kubernetes",
    "cveId": "CVE-2020-8566",
    "datePublished": "2020-12-07T22:00:16.139Z",
    "dateReserved": "2020-02-03T00:00:00.000Z",
    "dateUpdated": "2024-09-16T20:17:09.853Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2020-8566",
      "date": "2026-07-21",
      "epss": "0.0052",
      "percentile": "0.40801"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"1.17.0\", \"versionEndExcluding\": \"1.17.13\", \"matchCriteriaId\": \"B765012B-C658-4EB8-956A-62A91142CE05\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"1.18.0\", \"versionEndExcluding\": \"1.18.10\", \"matchCriteriaId\": \"67F84BBA-5FCA-4A23-BB4E-47BE92E3706A\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"1.19.0\", \"versionEndExcluding\": \"1.19.3\", \"matchCriteriaId\": \"456BD01B-44E8-4823-B220-5E109D8C377D\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager\u0027s logs during provisioning of Ceph RBD persistent claims. This affects \u003c v1.19.3, \u003c v1.18.10, \u003c v1.17.13.\"}, {\"lang\": \"es\", \"value\": \"En los cl\\u00fasteres de Kubernetes que usan Ceph RBD como aprovisionador de almacenamiento, con un nivel de registro de al menos 4, los secretos de administraci\\u00f3n de Ceph RBD se pueden escribir en los registros. Esto ocurre en los registros de kube-controller-manager durante el aprovisionamiento de notificaciones persistentes de Ceph RBD. Esto afecta a versiones anteriores a v1.19.3, anteriores a v1.18.10, anteriores a v1.17.13\"}]",
      "id": "CVE-2020-8566",
      "lastModified": "2024-11-21T05:39:02.657",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"jordan@liggitt.net\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 4.7, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.0, \"impactScore\": 3.6}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 5.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:L/AC:L/Au:N/C:P/I:N/A:N\", \"baseScore\": 2.1, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"LOW\", \"exploitabilityScore\": 3.9, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2020-12-07T22:15:21.480",
      "references": "[{\"url\": \"https://github.com/kubernetes/kubernetes/issues/95624\", \"source\": \"jordan@liggitt.net\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ\", \"source\": \"jordan@liggitt.net\", \"tags\": [\"Mailing List\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20210122-0006/\", \"source\": \"jordan@liggitt.net\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://github.com/kubernetes/kubernetes/issues/95624\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20210122-0006/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "jordan@liggitt.net",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"jordan@liggitt.net\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-532\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-532\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2020-8566\",\"sourceIdentifier\":\"jordan@liggitt.net\",\"published\":\"2020-12-07T22:15:21.480\",\"lastModified\":\"2024-11-21T05:39:02.657\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Kubernetes clusters using Ceph RBD as a storage provisioner, with logging level of at least 4, Ceph RBD admin secrets can be written to logs. This occurs in kube-controller-manager\u0027s logs during provisioning of Ceph RBD persistent claims. This affects \u003c v1.19.3, \u003c v1.18.10, \u003c v1.17.13.\"},{\"lang\":\"es\",\"value\":\"En los cl\u00fasteres de Kubernetes que usan Ceph RBD como aprovisionador de almacenamiento, con un nivel de registro de al menos 4, los secretos de administraci\u00f3n de Ceph RBD se pueden escribir en los registros. Esto ocurre en los registros de kube-controller-manager durante el aprovisionamiento de notificaciones persistentes de Ceph RBD. Esto afecta a versiones anteriores a v1.19.3, anteriores a v1.18.10, anteriores a v1.17.13\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:N/A:N\",\"baseScore\":2.1,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-532\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-532\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.17.0\",\"versionEndExcluding\":\"1.17.13\",\"matchCriteriaId\":\"B765012B-C658-4EB8-956A-62A91142CE05\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.18.0\",\"versionEndExcluding\":\"1.18.10\",\"matchCriteriaId\":\"67F84BBA-5FCA-4A23-BB4E-47BE92E3706A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.19.0\",\"versionEndExcluding\":\"1.19.3\",\"matchCriteriaId\":\"456BD01B-44E8-4823-B220-5E109D8C377D\"}]}]}],\"references\":[{\"url\":\"https://github.com/kubernetes/kubernetes/issues/95624\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Mailing List\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210122-0006/\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/kubernetes/kubernetes/issues/95624\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJ\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Patch\",\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210122-0006/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T12:01:47+00:00",
      "cve": "CVE-2020-8566",
      "id": "CVE-2020-8566",
      "initial_release_date": "2020-10-14T00:00:00+00:00",
      "product_status:fixed": "9",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "1110",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kubernetes: Ceph RBD adminSecrets exposed in logs when loglevel \u003e= 4",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-8566.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-19T18:20:58Z",
      "cve": "CVE-2020-8566",
      "id": "CVE-2020-8566",
      "initial_release_date": "2023-02-15T04:01:12Z",
      "product_status:known_not_affected": "80",
      "product_status:recommended": "32",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-8566",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-8566.json",
      "version": "13"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.