CVE-2021-34409

{"containers": {"cna": {"affected": [{"product": "Zoom Client for Meetings for MacOS (Standard and for IT Admin)", "vendor": "Zoom Video Communications Inc", "versions": [{"lessThan": "5.2.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Zoom Client Plugin for Sharing iPhone/iPad", "vendor": "Zoom Video Communications Inc", "versions": [{"lessThan": "5.2.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Zoom Rooms for Conference", "vendor": "Zoom Video Communications Inc", "versions": [{"lessThan": "5.1.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Lockheed Martin Red Team"}], "datePublic": "2021-12-14T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "It was discovered that the installation packages of the Zoom Client for Meetings for MacOS (Standard and for IT Admin) installation before version 5.2.0, Zoom Client Plugin for Sharing iPhone/iPad before version 5.2.0, and Zoom Rooms for Conference before version 5.1.0, copy pre- and post- installation shell scripts to a user-writable directory. In the affected products listed below, a malicious actor with local access to a user's machine could use this flaw to potentially run arbitrary system commands in a higher privileged context during the installation process."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"description": "Creation of Temporary File in Directory with Insecure Permissions", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-12-14T19:28:13.000Z", "orgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351", "shortName": "Zoom"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://explore.zoom.us/en/trust/security/security-bulletin"}], "source": {"discovery": "USER"}, "title": "Zoom Client Installer Local Privilege Escalation", "x_legacyV4Record": {"CVE_data_meta": {"AKA": "Zoom Communications Inc", "ASSIGNER": "security@zoom.us", "DATE_PUBLIC": "2021-12-14T15:00:00.000Z", "ID": "CVE-2021-34409", "STATE": "PUBLIC", "TITLE": "Zoom Client Installer Local Privilege Escalation"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Zoom Client for Meetings for MacOS (Standard and for IT Admin)", "version": {"version_data": [{"version_affected": "<", "version_value": "5.2.0"}]}}, {"product_name": "Zoom Client Plugin for Sharing iPhone/iPad", "version": {"version_data": [{"version_affected": "<", "version_value": "5.2.0"}]}}, {"product_name": "Zoom Rooms for Conference", "version": {"version_data": [{"version_affected": "<", "version_value": "5.1.0"}]}}]}, "vendor_name": "Zoom Video Communications Inc"}]}}, "credit": [{"lang": "eng", "value": "Lockheed Martin Red Team"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "It was discovered that the installation packages of the Zoom Client for Meetings for MacOS (Standard and for IT Admin) installation before version 5.2.0, Zoom Client Plugin for Sharing iPhone/iPad before version 5.2.0, and Zoom Rooms for Conference before version 5.1.0, copy pre- and post- installation shell scripts to a user-writable directory. In the affected products listed below, a malicious actor with local access to a user's machine could use this flaw to potentially run arbitrary system commands in a higher privileged context during the installation process."}]}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Creation of Temporary File in Directory with Insecure Permissions"}]}]}, "references": {"reference_data": [{"name": "https://explore.zoom.us/en/trust/security/security-bulletin", "refsource": "MISC", "url": "https://explore.zoom.us/en/trust/security/security-bulletin"}]}, "source": {"discovery": "USER"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:12:50.177Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://explore.zoom.us/en/trust/security/security-bulletin"}]}]}, "cveMetadata": {"assignerOrgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351", "assignerShortName": "Zoom", "cveId": "CVE-2021-34409", "datePublished": "2021-09-27T13:55:40.225Z", "dateReserved": "2021-06-09T00:00:00.000Z", "dateUpdated": "2024-09-16T23:46:09.631Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Zoom Client for Meetings for MacOS (Standard and for IT Admin)", "vendor": "Zoom Video Communications Inc", "versions": [{"lessThan": "5.2.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Zoom Client Plugin for Sharing iPhone/iPad", "vendor": "Zoom Video Communications Inc", "versions": [{"lessThan": "5.2.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Zoom Rooms for Conference", "vendor": "Zoom Video Communications Inc", "versions": [{"lessThan": "5.1.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@zoom.us"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:*", "matchCriteriaId": "37C37A72-A64B-4823-B1E1-4EB0B7283629", "versionEndExcluding": "5.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:zoom:rooms:*:*:*:*:*:*:*:*", "matchCriteriaId": "BA912D24-7983-4F87-B845-7464F24EE239", "versionEndExcluding": "5.1.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:zoom:screen_sharing:*:*:*:*:*:ipados:*:*", "matchCriteriaId": "7B7ED4B1-5A0F-4738-AC25-46846F3D1127", "versionEndExcluding": "5.2.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:zoom:screen_sharing:*:*:*:*:*:iphone_os:*:*", "matchCriteriaId": "FC50FFA5-57A1-4E3C-A53B-8B0622A437FA", "versionEndExcluding": "5.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "It was discovered that the installation packages of the Zoom Client for Meetings for MacOS (Standard and for IT Admin) installation before version 5.2.0, Zoom Client Plugin for Sharing iPhone/iPad before version 5.2.0, and Zoom Rooms for Conference before version 5.1.0, copy pre- and post- installation shell scripts to a user-writable directory. In the affected products listed below, a malicious actor with local access to a user's machine could use this flaw to potentially run arbitrary system commands in a higher privileged context during the installation process."}, {"lang": "es", "value": "Se ha detectado que los paquetes de instalaci\u00f3n de Zoom Client for Meetings para MacOS (Standard y para IT Admin) antes de la versi\u00f3n 5.2.0, Zoom Client Plugin for Sharing iPhone/iPad antes de la versi\u00f3n 5.2.0, y Zoom Rooms for Conference antes de la versi\u00f3n 5.1.0, copian scripts de shell previos y posteriores a la instalaci\u00f3n en un directorio escribible por el usuario. En los productos afectados que se enumeran a continuaci\u00f3n, un actor malintencionado con acceso local a la m\u00e1quina de un usuario podr\u00eda utilizar este defecto para ejecutar potencialmente comandos arbitrarios del sistema en un contexto con mayores privilegios durante el proceso de instalaci\u00f3n"}], "id": "CVE-2021-34409", "lastModified": "2026-06-17T03:55:48.187", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.2, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.1, "impactScore": 6.0, "source": "security@zoom.us", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-09-27T14:15:08.137", "references": [{"source": "security@zoom.us", "tags": ["Vendor Advisory"], "url": "https://explore.zoom.us/en/trust/security/security-bulletin"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://explore.zoom.us/en/trust/security/security-bulletin"}], "sourceIdentifier": "security@zoom.us", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-732"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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