Vulnerability Details : CVE-2021-34408

The Zoom Client for Meetings for Windows in all versions before version 5.3.2 writes log files to a user writable directory as a privileged user during the installation or update of the client. This could allow for potential privilege escalation if a link was created between the user writable directory used and a non-user writable directory.

Vulnerability category: Gain privilege

Published 2021-09-27 14:15:08

Updated 2022-07-12 17:42:04

Source Zoom Video Communications, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-34408

Probability of exploitation activity in the next 30 days: 0.04%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 10 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-34408

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
4.6	MEDIUM	AV:L/AC:L/Au:N/C:P/I:P/A:P	3.9	6.4	nvd@nist.gov
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	1.8	5.9	nvd@nist.gov
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2021-34408

CWE-59 Improper Link Resolution Before File Access ('Link Following')

The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-34408

https://explore.zoom.us/en/trust/security/security-bulletin/

Security Bulletin - Zoom
Vendor Advisory

CVEs referencing this url

Products affected by CVE-2021-34408

Zoom » Meetings » For Windows
Versions before (<) 5.3.2
cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:*
Matching versions