CVE-2021-34420 Information

Description

The Zoom Client for Meetings for Windows installer before version 5.5.4 does not properly verify the signature of files with .msi .ps1 and .bat extensions. This could lead to a malicious actor installing malicious software on a customer’s computer.

CVSS Vector

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

Reference

https://medium.com/manomano-tech/a-red-team-operation-leveraging-a-zero-day-vulnerability-in-zoom-80f57fb0822e https://explore.zoom.us/en/trust/security/security-bulletin

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.4