CVE Vulnerability

CVE-2021-34420

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.4 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://medium.com/manomano-tech/a-red-team-operation-leveraging-a-zero-day-vulnerability-in-zoom-80f57fb0822e Third Party Advisory
https://explore.zoom.us/en/trust/security/security-bulletin Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:zoom:zoom_client_for_meetings:*:*:*:*:*:windows:*:*
Information

Published : 2021-11-11 11:15

Updated : 2021-12-16 06:39

NVD link : CVE-2021-34420

Mitre link : CVE-2021-34420

Products Affected
No products.
CWE
CWE-347

Improper Verification of Cryptographic Signature