NVD

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CVE-2021-34409 Detail

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.

Severity

CVSS 4.0 Severity and Metrics:

NIST: NVD

N/A

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 7.8 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Nist CVSS score does not match with CNA score

CNA: Zoom Video Communications, Inc.

Base Score: 7.8 HIGH

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

CVSS 2.0 Severity and Metrics:

National Institute of Standards and Technology

NIST: NVD

Base Score: 7.2 HIGH

Vector: (AV:L/AC:L/Au:N/C:C/I:C/A:C)

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-732	Incorrect Permission Assignment for Critical Resource	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

CVE Modified by Zoom Video Communications, Inc. 12/14/2021 3:15:07 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		Zoom Video Communications, Inc. AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Changed	Description	User-writable pre and post-install scripts unpacked during the Zoom Client for Meetings for MacOS installation before version 5.2.0 allow for privilege escalation to root.	Record truncated, showing 500 of 571 characters. View Entire Change Record 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 c
Added	Reference		https://explore.zoom.us/en/trust/security/security-bulletin [No Types Assigned]
Removed	Reference	https://explore.zoom.us/en/trust/security/security-bulletin/ [Vendor Advisory]

Quick Info

CVE Dictionary Entry:
CVE-2021-34409
NVD Published Date:
09/27/2021
NVD Last Modified:
10/06/2022
Source:
Zoom Video Communications, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2021-34409 Detail

Description

Severity

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by Zoom Video Communications, Inc. 5/14/2024 5:13:04 AM

Modified Analysis by NIST 10/06/2022 2:10:26 PM

CWE Remap by NIST 7/12/2022 1:42:04 PM

CVE Modified by Zoom Video Communications, Inc. 12/14/2021 3:15:07 PM

Initial Analysis by NIST 10/06/2021 1:02:54 PM

CVE Modified by Zoom Video Communications, Inc. 10/01/2021 5:15:08 PM

Quick Info