CVE-2021-34409
Zoom Local Privilege Escalation Vulnerability
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.
INFO
Published Date :
Sept. 27, 2021, 2:15 p.m.
Last Modified :
Oct. 6, 2022, 6:10 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-34409
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-34409.
| URL | Resource |
|---|---|
| https://explore.zoom.us/en/trust/security/security-bulletin | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-34409 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-34409 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 06, 2022
Action Type Old Value New Value Changed Reference Type https://explore.zoom.us/en/trust/security/security-bulletin No Types Assigned https://explore.zoom.us/en/trust/security/security-bulletin Vendor Advisory Changed CPE Configuration OR *cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:* versions up to (excluding) 5.2.0 OR *cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:* versions up to (excluding) 5.2.0 *cpe:2.3:a:zoom:rooms:*:*:*:*:*:*:*:* versions up to (excluding) 5.1.0 *cpe:2.3:a:zoom:screen_sharing:*:*:*:*:*:ipados:*:* versions up to (excluding) 5.2.0 *cpe:2.3:a:zoom:screen_sharing:*:*:*:*:*:iphone_os:*:* versions up to (excluding) 5.2.0 -
CWE Remap by [email protected]
Jul. 12, 2022
Action Type Old Value New Value Changed CWE CWE-269 CWE-732 -
CVE Modified by [email protected]
Dec. 14, 2021
Action Type Old Value New Value 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. 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. Added CVSS V3.1 Zoom Video Communications, Inc. AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H Removed Reference https://explore.zoom.us/en/trust/security/security-bulletin/ [Vendor Advisory] Added Reference https://explore.zoom.us/en/trust/security/security-bulletin [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 06, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://explore.zoom.us/en/trust/security/security-bulletin/ No Types Assigned https://explore.zoom.us/en/trust/security/security-bulletin/ Vendor Advisory Added CWE NIST CWE-269 Added CPE Configuration OR *cpe:2.3:a:zoom:meetings:*:*:*:*:*:macos:*:* versions up to (excluding) 5.2.0 -
CVE Modified by [email protected]
Oct. 01, 2021
Action Type Old Value New Value Removed Reference https://cwe.mitre.org/data/definitions/379.html [No Types Assigned] Added Reference https://explore.zoom.us/en/trust/security/security-bulletin/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-34409 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-34409
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.10289
percentile