Vulnerability-Lookup

FKIE_CVE-2020-28952

Vulnerability from fkie_nvd - Published: 2021-03-09 20:15 - Updated: 2026-06-17 03:10

Severity

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

Summary

An issue was discovered on Athom Homey and Homey Pro devices before 5.0.0. ZigBee hub devices should generate a unique Standard Network Key that is then exchanged with all enrolled devices so that all inter-device communication is encrypted. However, the cited Athom products use another widely known key that is designed for testing purposes: "01030507090b0d0f00020406080a0c0d" (the decimal equivalent of 1 3 5 7 9 11 13 15 0 2 4 6 8 10 12 13), which is human generated and static across all issued devices.

References

URL	Tags
cve@mitre.org	https://developer.athom.com/firmware	Release Notes, Vendor Advisory
cve@mitre.org	https://homey.app/en-us/	Product, Vendor Advisory
cve@mitre.org	https://yougottahackthat.com/blog/1260/athom-homey-security-static-and-well-known-keys-cve-2020-28952	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://developer.athom.com/firmware	Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://homey.app/en-us/	Product, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://yougottahackthat.com/blog/1260/athom-homey-security-static-and-well-known-keys-cve-2020-28952	Third Party Advisory

Impacted products

Vendor	Product	Version
homey	homey_firmware	*
homey	homey	-
homey	homey_pro_firmware	*
homey	homey_pro	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:homey:homey_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F91DB805-377E-44FE-8D5C-99E61F6493EF",
              "versionEndExcluding": "5.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:h:homey:homey:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "53273CFA-B260-401D-9DD6-B90E3DA09D7D",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
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    {
      "nodes": [
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          "cpeMatch": [
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              "criteria": "cpe:2.3:o:homey:homey_pro_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "FA1184C0-AC54-4DE6-9667-78A6645FDF33",
              "versionEndExcluding": "5.0.0",
              "vulnerable": true
            }
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          "operator": "OR"
        },
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              "matchCriteriaId": "C01177C9-CED9-4D65-BEBB-C44C13C8A0A6",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered on Athom Homey and Homey Pro devices before 5.0.0. ZigBee hub devices should generate a unique Standard Network Key that is then exchanged with all enrolled devices so that all inter-device communication is encrypted. However, the cited Athom products use another widely known key that is designed for testing purposes: \"01030507090b0d0f00020406080a0c0d\" (the decimal equivalent of 1 3 5 7 9 11 13 15 0 2 4 6 8 10 12 13), which is human generated and static across all issued devices."
    },
    {
      "lang": "es",
      "value": "Se detect\u00f3 un problema en los dispositivos Athom Homey y Homey Pro anteriores a la 5.0.0.\u0026#xa0;Los dispositivos concentradores ZigBee deben generar una clave de red est\u00e1ndar \u00fanica que luego se intercambia con todos los dispositivos inscritos para que toda la comunicaci\u00f3n entre dispositivos est\u00e9 cifrada.\u0026#xa0;Sin embargo, los productos Athom citados usan otra clave ampliamente conocida que est\u00e1 dise\u00f1ada con fines de prueba: \"01030507090b0d0f00020406080a0c0d\" (el equivalente decimal de 1 3 5 7 9 11 13 15 0 2 4 6 8 10 12 13), que es generada por humanos y est\u00e1tica en todos los dispositivos emitidos"
    }
  ],
  "id": "CVE-2020-28952",
  "lastModified": "2026-06-17T03:10:54.240",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-03-09T20:15:12.680",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://developer.athom.com/firmware"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product",
        "Vendor Advisory"
      ],
      "url": "https://homey.app/en-us/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://yougottahackthat.com/blog/1260/athom-homey-security-static-and-well-known-keys-cve-2020-28952"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://developer.athom.com/firmware"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product",
        "Vendor Advisory"
      ],
      "url": "https://homey.app/en-us/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://yougottahackthat.com/blog/1260/athom-homey-security-static-and-well-known-keys-cve-2020-28952"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-798"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2020-28952 (GCVE-0-2020-28952)

Vulnerability from cvelistv5 – Published: 2021-03-09 19:31 – Updated: 2024-08-04 16:48

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 references

URL	Tags
https://developer.athom.com/firmware	x_refsource_MISC
https://homey.app/en-us/	x_refsource_MISC
https://yougottahackthat.com/blog/1260/athom-home…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:48:01.456Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_transferred"
            ],
            "url": "https://developer.athom.com/firmware"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://homey.app/en-us/"
          },
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              "x_transferred"
            ],
            "url": "https://yougottahackthat.com/blog/1260/athom-homey-security-static-and-well-known-keys-cve-2020-28952"
          }
        ],
        "title": "CVE Program Container"
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    "cna": {
      "affected": [
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        }
      ],
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.