Vulnerability-Lookup

FKIE_CVE-2021-20635

Vulnerability from fkie_nvd - Published: 2021-02-12 07:15 - Updated: 2026-06-17 03:34

Severity

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

Summary

Improper restriction of excessive authentication attempts in LOGITEC LAN-WH450N/GR allows an attacker in the wireless range of the device to recover PIN and access the network.

References

URL	Tags
vultures@jpcert.or.jp	https://jvn.jp/en/jp/JVN96783542/index.html	Third Party Advisory
vultures@jpcert.or.jp	https://www.elecom.co.jp/news/security/20210126-01/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://jvn.jp/en/jp/JVN96783542/index.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.elecom.co.jp/news/security/20210126-01/	Vendor Advisory

Impacted products

	Vendor	Product	Version
	logitech	lan-wh450n\/gr_firmware	-
	logitech	lan-wh450n\/gr	-

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "LAN-WH450N/GR",
          "vendor": "LOGITEC CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "LAN-WH450N/GR"
            }
          ]
        }
      ],
      "source": "vultures@jpcert.or.jp"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:logitech:lan-wh450n\\/gr_firmware:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "4FE2CE6A-6FEB-4A13-B91B-CD58764FD7EF",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:logitech:lan-wh450n\\/gr:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "F2D25A96-B85F-44DC-AE8E-6B5288DD6785",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper restriction of excessive authentication attempts in LOGITEC LAN-WH450N/GR allows an attacker in the wireless range of the device to recover PIN and access the network."
    },
    {
      "lang": "es",
      "value": "Una restricci\u00f3n inapropiada de intentos de autenticaci\u00f3n excesivos en LOGITEC LAN-WH450N/GR, permite a un atacante en el alcance inal\u00e1mbrico del dispositivo recuperar el PIN y acceder a la red"
    }
  ],
  "id": "CVE-2021-20635",
  "lastModified": "2026-06-17T03:34:09.640",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "ADJACENT_NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 3.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:A/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.5,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-02-12T07:15:14.187",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN96783542/index.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.elecom.co.jp/news/security/20210126-01/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://jvn.jp/en/jp/JVN96783542/index.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.elecom.co.jp/news/security/20210126-01/"
    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-307"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-20635 (GCVE-0-2021-20635)

Vulnerability from cvelistv5 – Published: 2021-02-12 06:15 – Updated: 2024-08-03 17:45

Summary

Improper restriction of excessive authentication attempts in LOGITEC LAN-WH450N/GR allows an attacker in the wireless range of the device to recover PIN and access the network.

Severity

No CVSS data available.

CWE

Improper restriction of excessive authentication attempts

Assigner

jpcert jpcert root

References

2 references

URL	Tags
https://www.elecom.co.jp/news/security/20210126-01/	x_refsource_MISC
https://jvn.jp/en/jp/JVN96783542/index.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
LOGITEC CORPORATION	LAN-WH450N/GR	Affected: LAN-WH450N/GR

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:45:45.340Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.elecom.co.jp/news/security/20210126-01/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jvn.jp/en/jp/JVN96783542/index.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "LAN-WH450N/GR",
          "vendor": "LOGITEC CORPORATION",
          "versions": [
            {
              "status": "affected",
              "version": "LAN-WH450N/GR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Improper restriction of excessive authentication attempts in LOGITEC LAN-WH450N/GR allows an attacker in the wireless range of the device to recover PIN and access the network."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Improper restriction of excessive authentication attempts",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-02-12T06:15:40.000Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.elecom.co.jp/news/security/20210126-01/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jvn.jp/en/jp/JVN96783542/index.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20635",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "LAN-WH450N/GR",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "LAN-WH450N/GR"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "LOGITEC CORPORATION"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Improper restriction of excessive authentication attempts in LOGITEC LAN-WH450N/GR allows an attacker in the wireless range of the device to recover PIN and access the network."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Improper restriction of excessive authentication attempts"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.elecom.co.jp/news/security/20210126-01/",
              "refsource": "MISC",
              "url": "https://www.elecom.co.jp/news/security/20210126-01/"
            },
            {
              "name": "https://jvn.jp/en/jp/JVN96783542/index.html",
              "refsource": "MISC",
              "url": "https://jvn.jp/en/jp/JVN96783542/index.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2021-20635",
    "datePublished": "2021-02-12T06:15:41.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:45:45.340Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.