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.

CVSS v3 7.4 HIGH
CVSS v2.0 4.3 MEDIUM

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

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

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2021-11-11 23:15

Updated : 2021-12-16 18:39

NVD link : CVE-2021-34420

Mitre link : CVE-2021-34420

CVE.ORG link : CVE-2021-34420

JSON object : View

Products Affected

zoom

zoom_client_for_meetings

CWE

CWE-347

Improper Verification of Cryptographic Signature

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