{"id":"CVE-2021-34409","state":"PUBLISHED","title":"Zoom Client Installer Local Privilege Escalation","description":"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.","publishedAt":"2021-09-27T13:55:40.225Z","updatedAt":"2024-09-16T23:46:09.631Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","source":"Zoom"},"assigner":"Zoom","products":["Zoom Video Communications Inc Zoom Client for Meetings for MacOS (Standard and for IT Admin)","Zoom Video Communications Inc Zoom Client Plugin for Sharing iPhone/iPad","Zoom Video Communications Inc Zoom Rooms for Conference"],"affected":[{"vendor":"Zoom Video Communications Inc","product":"Zoom Client for Meetings for MacOS (Standard and for IT Admin)","versions":[{"version":"unspecified","status":"affected","lessThan":"5.2.0","versionType":"custom"}]},{"vendor":"Zoom Video Communications Inc","product":"Zoom Client Plugin for Sharing iPhone/iPad","versions":[{"version":"unspecified","status":"affected","lessThan":"5.2.0","versionType":"custom"}]},{"vendor":"Zoom Video Communications Inc","product":"Zoom Rooms for Conference","versions":[{"version":"unspecified","status":"affected","lessThan":"5.1.0","versionType":"custom"}]}],"references":["https://explore.zoom.us/en/trust/security/security-bulletin"],"weaknesses":[],"ingestedAt":"2026-10-29T19:48:38.863Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/34xxx/CVE-2021-34409.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-34409","state":"PUBLISHED","datePublished":"2021-09-27T13:55:40.225Z","dateUpdated":"2024-09-16T23:46:09.631Z","assignerShortName":"Zoom","assignerOrgId":"99b9af0d-a833-4a5d-9e2f-8b1324f35351","dateReserved":"2021-06-09T00:00:00.000Z"},"containers":{"cna":{"title":"Zoom Client Installer Local Privilege Escalation","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."}],"affected":[{"vendor":"Zoom Video Communications Inc","product":"Zoom Client for Meetings for MacOS (Standard and for IT Admin)","versions":[{"version":"unspecified","status":"affected","lessThan":"5.2.0","versionType":"custom"}]},{"vendor":"Zoom Video Communications Inc","product":"Zoom Client Plugin for Sharing iPhone/iPad","versions":[{"version":"unspecified","status":"affected","lessThan":"5.2.0","versionType":"custom"}]},{"vendor":"Zoom Video Communications Inc","product":"Zoom Rooms for Conference","versions":[{"version":"unspecified","status":"affected","lessThan":"5.1.0","versionType":"custom"}]}],"references":[{"url":"https://explore.zoom.us/en/trust/security/security-bulletin","tags":["x_refsource_MISC"]}],"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":{"shortName":"Zoom","dateUpdated":"2021-12-14T19:28:13.000Z","orgId":"99b9af0d-a833-4a5d-9e2f-8b1324f35351"},"credits":[{"lang":"en","value":"Lockheed Martin Red Team"}],"datePublic":"2021-12-14T00:00:00.000Z","source":{"discovery":"USER"},"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":[{"title":"CVE Program Container","references":[{"url":"https://explore.zoom.us/en/trust/security/security-bulletin","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T00:12:50.177Z"}}]}}}