CVE-2021-27941

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-05-06T20:31:53.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://play.google.com/store/apps/details?id=com.coolkit&hl=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'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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://play.google.com/store/apps/details?id=com.coolkit&hl=en_US", "refsource": "MISC", "url": "https://play.google.com/store/apps/details?id=com.coolkit&hl=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"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T21:33:16.407Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://play.google.com/store/apps/details?id=com.coolkit&hl=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"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-27941", "datePublished": "2021-05-06T20:31:53.000Z", "dateReserved": "2021-03-03T00:00:00.000Z", "dateUpdated": "2024-08-03T21:33:16.407Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"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:a:coolkit:ewelink:*:*:*:*:*:iphone_os:*:*", "matchCriteriaId": "3C19C39C-9C55-4C57-8BF2-C32E843249E5", "versionEndIncluding": "4.9.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:coolkit:ewelink:*:*:*:*:*:android:*:*", "matchCriteriaId": "6198F9C4-23C8-46B3-9100-B96C60407F1C", "versionEndIncluding": "4.9.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"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": "2026-06-17T03:45:38.880", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "PHYSICAL", "availabilityImpact": "NONE", "baseScore": 4.6, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 0.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-06T21:15:07.597", "references": [{"source": "cve@mitre.org", "tags": ["Product", "Third Party Advisory"], "url": "https://apps.apple.com/us/app/ewelink-smart-home/id1035163158"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/salgio/eWeLink-QR-Code"}, {"source": "cve@mitre.org", "tags": ["Product", "Third Party Advisory"], "url": "https://play.google.com/store/apps/details?id=com.coolkit&hl=en_US"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Third Party Advisory"], "url": "https://apps.apple.com/us/app/ewelink-smart-home/id1035163158"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/salgio/eWeLink-QR-Code"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Product", "Third Party Advisory"], "url": "https://play.google.com/store/apps/details?id=com.coolkit&hl=en_US"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-522"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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