Zoom Client Installer Local Privilege Escalation
CVE-2021-34409

7.8HIGH

Key Information:

Vendor
Zoom
Status
Zoom Client For Meetings For Mac OS (standard And For It Admin)
Zoom Client Plugin For Sharing Iphone/ipad
Zoom Rooms For Conference
Vendor
CVE Published:
27 September 2021

Summary

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.

Affected Version(s)

Zoom Client for Meetings for MacOS (Standard and for IT Admin) < 5.2.0

Zoom Client Plugin for Sharing iPhone/iPad < 5.2.0

Zoom Rooms for Conference < 5.1.0

References

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

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lockheed Martin Red Team
.