CVE-2021-20989 (GCVE-0-2021-20989)

Vulnerability from cvelistv5 – Published: 2021-04-19 14:05 – Updated: 2024-09-17 00:42
VLAI?
Title
Fibaro Home Center Insufficient remote access server authorization
Summary
Fibaro Home Center 2 and Lite devices with firmware version 4.600 and older initiate SSH connections to the Fibaro cloud to provide remote access and remote support capabilities. This connection can be intercepted using DNS spoofing attack and a device initiated remote port-forward channel can be used to connect to the web management interface. Knowledge of authorization credentials to the management interface is required to perform any further actions.
CWE
  • CWE-295 - Improper Certificate Validation
Assigner
Impacted products
Vendor Product Version
Fibar Group S.A Fibaro Home Center Affected: Home Center 2 , ≤ 4.600 (custom)
Affected: Home Center Lite , ≤ 4.600 (custom)
Create a notification for this product.
Date Public ?
2021-04-15 00:00
Credits
Marton Illes IoT Inspector Research Lab https://www.iot-inspector.com
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:53:23.084Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.iot-inspector.com/blog/advisory-fibaro-home-center/"
          },
          {
            "name": "20210419 [CVE-2021-20989, CVE-2021-20990, CVE-2021-20991, CVE-2021-20992] Multiple vulnerabilities in Fibaro Home Center",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2021/Apr/27"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Fibaro Home Center",
          "vendor": "Fibar Group S.A",
          "versions": [
            {
              "lessThanOrEqual": "4.600",
              "status": "affected",
              "version": "Home Center 2",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "4.600",
              "status": "affected",
              "version": "Home Center Lite",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Marton Illes IoT Inspector Research Lab https://www.iot-inspector.com"
        }
      ],
      "datePublic": "2021-04-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Fibaro Home Center 2 and Lite devices with firmware version 4.600 and older initiate SSH connections to the Fibaro cloud to provide remote access and remote support capabilities. This connection can be intercepted using DNS spoofing attack and a device initiated remote port-forward channel can be used to connect to the web management interface. Knowledge of authorization credentials to the management interface is required to perform any further actions."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "CWE-295 Improper Certificate Validation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-09-30T09:15:16.000Z",
        "orgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
        "shortName": "CERTVDE"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.iot-inspector.com/blog/advisory-fibaro-home-center/"
        },
        {
          "name": "20210419 [CVE-2021-20989, CVE-2021-20990, CVE-2021-20991, CVE-2021-20992] Multiple vulnerabilities in Fibaro Home Center",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2021/Apr/27"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Fibaro Home Center Insufficient remote access server authorization",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "info@cert.vde.com",
          "DATE_PUBLIC": "2021-04-15T10:00:00.000Z",
          "ID": "CVE-2021-20989",
          "STATE": "PUBLIC",
          "TITLE": "Fibaro Home Center Insufficient remote access server authorization"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Fibaro Home Center",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c=",
                            "version_name": "Home Center 2",
                            "version_value": "4.600"
                          },
                          {
                            "version_affected": "\u003c=",
                            "version_name": "Home Center Lite",
                            "version_value": "4.600"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Fibar Group S.A"
              }
            ]
          }
        },
        "credit": [
          {
            "lang": "eng",
            "value": "Marton Illes IoT Inspector Research Lab https://www.iot-inspector.com"
          }
        ],
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Fibaro Home Center 2 and Lite devices with firmware version 4.600 and older initiate SSH connections to the Fibaro cloud to provide remote access and remote support capabilities. This connection can be intercepted using DNS spoofing attack and a device initiated remote port-forward channel can be used to connect to the web management interface. Knowledge of authorization credentials to the management interface is required to perform any further actions."
            }
          ]
        },
        "generator": {
          "engine": "Vulnogram 0.0.9"
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-295 Improper Certificate Validation"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.iot-inspector.com/blog/advisory-fibaro-home-center/",
              "refsource": "CONFIRM",
              "url": "https://www.iot-inspector.com/blog/advisory-fibaro-home-center/"
            },
            {
              "name": "20210419 [CVE-2021-20989, CVE-2021-20990, CVE-2021-20991, CVE-2021-20992] Multiple vulnerabilities in Fibaro Home Center",
              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2021/Apr/27"
            },
            {
              "name": "http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html"
            }
          ]
        },
        "source": {
          "discovery": "EXTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "270ccfa6-a436-4e77-922e-914ec3a9685c",
    "assignerShortName": "CERTVDE",
    "cveId": "CVE-2021-20989",
    "datePublished": "2021-04-19T14:05:02.362Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-09-17T00:42:24.901Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2021-20989",
      "date": "2026-04-30",
      "epss": "0.01843",
      "percentile": "0.83048"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-20989\",\"sourceIdentifier\":\"info@cert.vde.com\",\"published\":\"2021-04-19T14:15:11.570\",\"lastModified\":\"2024-11-21T05:47:20.583\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Fibaro Home Center 2 and Lite devices with firmware version 4.600 and older initiate SSH connections to the Fibaro cloud to provide remote access and remote support capabilities. This connection can be intercepted using DNS spoofing attack and a device initiated remote port-forward channel can be used to connect to the web management interface. Knowledge of authorization credentials to the management interface is required to perform any further actions.\"},{\"lang\":\"es\",\"value\":\"Los dispositivos Fibaro Home Center versi\u00f3n 2 y Lite con versiones de firmware 4.600 y anteriores, inician conexiones SSH a la nube de Fibaro para proporcionar acceso remoto y capacidades de soporte remoto.\u0026#xa0;Esta conexi\u00f3n puede ser interceptada usando un ataque de suplantaci\u00f3n de DNS y puede ser usado un canal de reenv\u00edo de puerto remoto iniciado por el dispositivo para conectarse a la interfaz de administraci\u00f3n web.\u0026#xa0;Es requerido un conocimiento de unas credenciales de autorizaci\u00f3n para la interfaz de administraci\u00f3n para llevar a cabo cualquier acci\u00f3n adicional\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"info@cert.vde.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":5.9,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.2,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:M/Au:N/C:P/I:N/A:N\",\"baseScore\":4.3,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"MEDIUM\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.6,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"info@cert.vde.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-295\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fibaro:home_center_2_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.600\",\"matchCriteriaId\":\"867FAF63-0352-4AC8-AB9D-1FDEC2E942D4\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:fibaro:home_center_2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8021D17B-DD82-46D0-AE92-372649467F1F\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:fibaro:home_center_lite_firmware:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.600\",\"matchCriteriaId\":\"A06A908C-D871-46DA-AC42-63FF1518A558\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:fibaro:home_center_lite:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6A19AFCC-B670-450C-8B64-7770C86B4692\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html\",\"source\":\"info@cert.vde.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://seclists.org/fulldisclosure/2021/Apr/27\",\"source\":\"info@cert.vde.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://www.iot-inspector.com/blog/advisory-fibaro-home-center/\",\"source\":\"info@cert.vde.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"http://packetstormsecurity.com/files/162243/Fibaro-Home-Center-MITM-Missing-Authentication-Code-Execution.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://seclists.org/fulldisclosure/2021/Apr/27\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://www.iot-inspector.com/blog/advisory-fibaro-home-center/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…
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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…