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

Configurations

Configuration 1 (hide)

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

History

07 Oct 2021, 16:35

Type	Values Removed	Values Added
CPE		cpe:2.3:a:zoom:zoom_plugin_for_microsoft_outlook::::::windows::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 6.0 v3 : 7.5
CWE		CWE-367
References	~~(CONFIRM) https://explore.zoom.us/en/trust/security/security-bulletin/ -~~	(CONFIRM) https://explore.zoom.us/en/trust/security/security-bulletin/ - Vendor Advisory

01 Oct 2021, 22:15

Type	Values Removed	Values Added
References	~~{'url': 'https://cwe.mitre.org/data/definitions/367.html', 'name': 'https://cwe.mitre.org/data/definitions/367.html', 'tags': [], 'refsource': 'MISC'}~~	(CONFIRM) https://explore.zoom.us/en/trust/security/security-bulletin/ -

27 Sep 2021, 14:34

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-09-27 14:15

Updated : 2023-12-10 14:09

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

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