CVE-2021-27941 (GCVE-0-2021-27941)

Vulnerability from cvelistv5 – Published: 2021-05-06 20:31 – Updated: 2024-08-03 21:33
VLAI?
Summary
Unconstrained Web access to the device's private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T21:33:16.407Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://apps.apple.com/us/app/ewelink-smart-home/id1035163158"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/salgio/eWeLink-QR-Code"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Unconstrained Web access to the device\u0027s private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-06T20:31:53",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://apps.apple.com/us/app/ewelink-smart-home/id1035163158"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/salgio/eWeLink-QR-Code"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-27941",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Unconstrained Web access to the device\u0027s private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US",
              "refsource": "MISC",
              "url": "https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US"
            },
            {
              "name": "https://apps.apple.com/us/app/ewelink-smart-home/id1035163158",
              "refsource": "MISC",
              "url": "https://apps.apple.com/us/app/ewelink-smart-home/id1035163158"
            },
            {
              "name": "https://github.com/salgio/eWeLink-QR-Code",
              "refsource": "MISC",
              "url": "https://github.com/salgio/eWeLink-QR-Code"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-27941",
    "datePublished": "2021-05-06T20:31:53",
    "dateReserved": "2021-03-03T00:00:00",
    "dateUpdated": "2024-08-03T21:33:16.407Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:iphone_os:*:*\", \"versionEndIncluding\": \"4.9.1\", \"matchCriteriaId\": \"3C19C39C-9C55-4C57-8BF2-C32E843249E5\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:android:*:*\", \"versionEndIncluding\": \"4.9.2\", \"matchCriteriaId\": \"6198F9C4-23C8-46B3-9100-B96C60407F1C\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"Unconstrained Web access to the device\u0027s private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.\"}, {\"lang\": \"es\", \"value\": \"El acceso web sin restricciones a la clave de cifrado privada del dispositivo en el modo de emparejamiento de c\\u00f3digo QR en la aplicaci\\u00f3n m\\u00f3vil eWeLink (versiones  hasta.9.2 en Android y versiones hasta.9.1 en iOS) permite a un atacante f\\u00edsicamente pr\\u00f3ximo espiar las credenciales de Wi-Fi y otras informaci\\u00f3n mediante el seguimiento del espectro de Wi-Fi durante un proceso de emparejamiento de dispositivos\"}]",
      "id": "CVE-2021-27941",
      "lastModified": "2024-11-21T05:58:52.240",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 4.6, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"PHYSICAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 0.9, \"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": "2021-05-06T21:15:07.597",
      "references": "[{\"url\": \"https://apps.apple.com/us/app/ewelink-smart-home/id1035163158\", \"source\": \"cve@mitre.org\", \"tags\": [\"Product\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/salgio/eWeLink-QR-Code\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US\", \"source\": \"cve@mitre.org\", \"tags\": [\"Product\", \"Third Party Advisory\"]}, {\"url\": \"https://apps.apple.com/us/app/ewelink-smart-home/id1035163158\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Product\", \"Third Party Advisory\"]}, {\"url\": \"https://github.com/salgio/eWeLink-QR-Code\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Product\", \"Third Party Advisory\"]}]",
      "sourceIdentifier": "cve@mitre.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-522\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-27941\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-05-06T21:15:07.597\",\"lastModified\":\"2024-11-21T05:58:52.240\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Unconstrained Web access to the device\u0027s private encryption key in the QR code pairing mode in the eWeLink mobile application (through 4.9.2 on Android and through 4.9.1 on iOS) allows a physically proximate attacker to eavesdrop on Wi-Fi credentials and other sensitive information by monitoring the Wi-Fi spectrum during a device pairing process.\"},{\"lang\":\"es\",\"value\":\"El acceso web sin restricciones a la clave de cifrado privada del dispositivo en el modo de emparejamiento de c\u00f3digo QR en la aplicaci\u00f3n m\u00f3vil eWeLink (versiones  hasta.9.2 en Android y versiones hasta.9.1 en iOS) permite a un atacante f\u00edsicamente pr\u00f3ximo espiar las credenciales de Wi-Fi y otras informaci\u00f3n mediante el seguimiento del espectro de Wi-Fi durante un proceso de emparejamiento de dispositivos\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":4.6,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"PHYSICAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":0.9,\"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\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-522\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:iphone_os:*:*\",\"versionEndIncluding\":\"4.9.1\",\"matchCriteriaId\":\"3C19C39C-9C55-4C57-8BF2-C32E843249E5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:android:*:*\",\"versionEndIncluding\":\"4.9.2\",\"matchCriteriaId\":\"6198F9C4-23C8-46B3-9100-B96C60407F1C\"}]}]}],\"references\":[{\"url\":\"https://apps.apple.com/us/app/ewelink-smart-home/id1035163158\",\"source\":\"cve@mitre.org\",\"tags\":[\"Product\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/salgio/eWeLink-QR-Code\",\"source\":\"cve@mitre.org\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US\",\"source\":\"cve@mitre.org\",\"tags\":[\"Product\",\"Third Party Advisory\"]},{\"url\":\"https://apps.apple.com/us/app/ewelink-smart-home/id1035163158\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Product\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/salgio/eWeLink-QR-Code\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://play.google.com/store/apps/details?id=com.coolkit\u0026hl=en_US\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Product\",\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.