CVE-2021-33838

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "Luca through 1.7.4 on Android allows remote attackers to obtain sensitive information about COVID-19 tracking because requests related to Check-In State occur shortly after requests for Phone Number Registration."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-06-03T23:58:25.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/mame82/misc/blob/master/luca_traceIds.md"}, {"tags": ["x_refsource_MISC"], "url": "https://luca-app.de/securityoverview/properties/objectives.html"}, {"tags": ["x_refsource_MISC"], "url": "https://www.youtube.com/playlist?list=PLKuX6iczGb3kuDsm2RFgbmRkTugkR9-UE"}, {"tags": ["x_refsource_MISC"], "url": "https://www.ccc.de/de/updates/2021/luca-app-ccc-fordert-bundesnotbremse"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-33838", "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": "Luca through 1.7.4 on Android allows remote attackers to obtain sensitive information about COVID-19 tracking because requests related to Check-In State occur shortly after requests for Phone Number Registration."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/mame82/misc/blob/master/luca_traceIds.md", "refsource": "MISC", "url": "https://github.com/mame82/misc/blob/master/luca_traceIds.md"}, {"name": "https://luca-app.de/securityoverview/properties/objectives.html", "refsource": "MISC", "url": "https://luca-app.de/securityoverview/properties/objectives.html"}, {"name": "https://www.youtube.com/playlist?list=PLKuX6iczGb3kuDsm2RFgbmRkTugkR9-UE", "refsource": "MISC", "url": "https://www.youtube.com/playlist?list=PLKuX6iczGb3kuDsm2RFgbmRkTugkR9-UE"}, {"name": "https://www.ccc.de/de/updates/2021/luca-app-ccc-fordert-bundesnotbremse", "refsource": "MISC", "url": "https://www.ccc.de/de/updates/2021/luca-app-ccc-fordert-bundesnotbremse"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T23:58:23.220Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/mame82/misc/blob/master/luca_traceIds.md"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://luca-app.de/securityoverview/properties/objectives.html"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.youtube.com/playlist?list=PLKuX6iczGb3kuDsm2RFgbmRkTugkR9-UE"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.ccc.de/de/updates/2021/luca-app-ccc-fordert-bundesnotbremse"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-33838", "datePublished": "2021-06-03T23:58:25.000Z", "dateReserved": "2021-06-03T00:00:00.000Z", "dateUpdated": "2024-08-03T23:58:23.220Z", "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:luca-app:luca:*:*:*:*:*:android:*:*", "matchCriteriaId": "B1F90DF1-4F29-4F8F-9C8C-239D7B774FAD", "versionEndIncluding": "1.7.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Luca through 1.7.4 on Android allows remote attackers to obtain sensitive information about COVID-19 tracking because requests related to Check-In State occur shortly after requests for Phone Number Registration."}, {"lang": "es", "value": "Luca a trav\u00e9s de la versi\u00f3n 1.7.4 en Android permite a los atacantes remotos obtener informaci\u00f3n sensible sobre el seguimiento de COVID-19 porque las solicitudes relacionadas con el Estado de Registro ocurren poco despu\u00e9s de las solicitudes de Registro del N\u00famero de Tel\u00e9fono."}], "id": "CVE-2021-33838", "lastModified": "2026-06-17T03:55:17.380", "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": "2021-06-04T00:15:07.333", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/mame82/misc/blob/master/luca_traceIds.md"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://luca-app.de/securityoverview/properties/objectives.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://www.ccc.de/de/updates/2021/luca-app-ccc-fordert-bundesnotbremse"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.youtube.com/playlist?list=PLKuX6iczGb3kuDsm2RFgbmRkTugkR9-UE"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/mame82/misc/blob/master/luca_traceIds.md"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://luca-app.de/securityoverview/properties/objectives.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.ccc.de/de/updates/2021/luca-app-ccc-fordert-bundesnotbremse"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://www.youtube.com/playlist?list=PLKuX6iczGb3kuDsm2RFgbmRkTugkR9-UE"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-203"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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