CVE-2021-34413

All versions of the Zoom Plugin for Microsoft Outlook for MacOS before 5.3.52553.0918 contain a Time-of-check Time-of-use (TOC/TOU) vulnerability during the plugin installation process. This could allow a standard user to write their own malicious application to the plugin directory, allowing the malicious application to execute in a privileged context.

CVSS v3 7.5 HIGH
CVSS v2.0 6.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.6 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:S/C:P/I:P/A:P

Exploitability : 6.8 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://explore.zoom.us/en/trust/security/security-bulletin/	Vendor Advisory
https://explore.zoom.us/en/trust/security/security-bulletin/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:zoom:zoom_plugin_for_microsoft_outlook:*:*:*:*:*:windows:*:*

History

21 Nov 2024, 06:10

Type	Values Removed	Values Added
References	~~() https://explore.zoom.us/en/trust/security/security-bulletin/ - Vendor Advisory~~	() https://explore.zoom.us/en/trust/security/security-bulletin/ - Vendor Advisory

Information

Published : 2021-09-27 14:15

Updated : 2024-11-21 06:10

NVD link : CVE-2021-34413

Mitre link : CVE-2021-34413

CVE.ORG link : CVE-2021-34413

JSON object : View

Products Affected

zoom

zoom_plugin_for_microsoft_outlook

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

{"id": "CVE-2021-34413", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.6}]}, "published": "2021-09-27T14:15:08.310", "references": [{"url": "https://explore.zoom.us/en/trust/security/security-bulletin/", "tags": ["Vendor Advisory"], "source": "security@zoom.us"}, {"url": "https://explore.zoom.us/en/trust/security/security-bulletin/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-367"}]}], "descriptions": [{"lang": "en", "value": "All versions of the Zoom Plugin for Microsoft Outlook for MacOS before 5.3.52553.0918 contain a Time-of-check Time-of-use (TOC/TOU) vulnerability during the plugin installation process. This could allow a standard user to write their own malicious application to the plugin directory, allowing the malicious application to execute in a privileged context."}, {"lang": "es", "value": "Todas las versiones de Zoom Plugin for Microsoft Outlook para MacOS anteriores a 5.3.52553.0918, contienen una vulnerabilidad de tipo Time-of-check Time-of-use (TOC/TOU) durante el proceso de instalaci\u00f3n del plugin. Esto podr\u00eda permitir a un usuario est\u00e1ndar escribir su propia aplicaci\u00f3n maliciosa en el directorio del plugin, permitiendo que la aplicaci\u00f3n maliciosa se ejecute en un contexto privilegiado"}], "lastModified": "2024-11-21T06:10:21.080", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:zoom:zoom_plugin_for_microsoft_outlook:*:*:*:*:*:windows:*:*", "vulnerable": true, "matchCriteriaId": "E10CE414-2EAF-4ED3-A2B2-3DC89FF94134", "versionEndExcluding": "5.3.52553.0918"}], "operator": "OR"}]}], "sourceIdentifier": "security@zoom.us"}