DLL injection in Zoom Windows Clients

Windows 32-bit versions of the Zoom Client for Meetings before 5.12.6 and Zoom Rooms for Conference Room before version 5.12.6 are susceptible to a DLL injection vulnerability. A local low-privileged user could exploit this vulnerability to run arbitrary code in the context of the Zoom client.

Local information exposure in Zoom Clients

The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.6 is susceptible to a local information exposure vulnerability. A failure to clear data from a local SQL database after a meeting ends and the usage of an insufficiently secure per-device key encrypting that database results in a local malicious user being able to obtain meeting information such as in-meeting chat for the previous meeting attended from that local user account.

Local Privilege Escalation in Zoom Rooms Installer for Windows

The Zoom Rooms Installer for Windows prior to 5.12.6 contains a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability during the install process to escalate their privileges to the SYSTEM user.

Insecure key generation for Zoom Rooms for macOS Clients

Zoom Rooms for macOS clients before version 5.11.4 contain an insecure key generation mechanism. The encryption key used for IPC between the Zoom Rooms daemon service and the Zoom Rooms client was generated using parameters that could be obtained by a local low-privileged application. That key can then be used to interact with the daemon service to execute privileged functions and cause a local denial of service.

Local Privilege Escalation in Zoom Rooms for macOS Clients

Zoom Rooms for macOS clients before version 5.11.3 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability to escalate their privileges to root.

Local Privilege Escalation in Zoom Rooms for macOS Clients

Zoom Rooms for macOS clients before version 5.11.3 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability to escalate their privileges to root.

Local Privilege Escalation in Zoom Rooms for Windows Clients

The Zoom Rooms Installer for Windows prior to 5.12.6 contains a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability during the install process to escalate their privileges to the SYSTEM user.

Local Privilege Escalation in Zoom Rooms for Windows Installers

Zoom Rooms for Windows installers before version 5.13.0 contain a local privilege escalation vulnerability. A local low-privileged user could exploit this vulnerability in an attack chain to escalate their privileges to the SYSTEM user.

Zoom Clients - Business Logic Error

Business logic error in some Zoom clients may allow an authenticated user to conduct information disclosure via network access.

Zoom Workplace Apps - Incorrect Ownership Assignment

Incorrect ownership assignment in some Zoom Workplace Apps may allow a privileged user to conduct an information disclosure via network access.

Zoom Apps for macOS - Symbolic Link Following

Symlink following in the installer for some Zoom apps for macOS before version 6.1.5 may allow an authenticated user to conduct an escalation of privilege via network access.

Zoom Apps for macOS - Uncontrolled Resource Consumption

Uncontrolled resource consumption in the installer for some Zoom apps for macOS before version 6.1.5 may allow a privileged user to conduct a disclosure of information via local access.

Information Disclosure in Zoom for Windows Clients

Zoom for Windows clients before version 5.13.3, Zoom Rooms for Windows clients before version 5.13.5 and Zoom VDI for Windows clients before 5.13.1 contain an information disclosure vulnerability. A recent update to the Microsoft Edge WebView2 runtime used by the affected Zoom clients, transmitted text to Microsoft’s online Spellcheck service instead of the local Windows Spellcheck. Updating Zoom remediates this vulnerability by disabling the feature. Updating Microsoft Edge WebView2 Runtime to at least version 109.0.1481.0 and restarting Zoom remediates this vulnerability by updating Microsoft’s telemetry behavior.

Zoom Workplace Apps - Incorrect User Management

Incorrect user management in some Zoom Workplace Apps may allow a privileged user to conduct an information disclosure via network access.

Zoom Workplace Apps - Business Logic Error

Business logic error in some Zoom Workplace Apps may allow an unauthenticated user to conduct a disclosure of information via network access.

Zoom Apps - Buffer Overflow

Buffer overflow in some Zoom Apps may allow an authenticated user to conduct an escalation of privilege via network access.

Improper trust boundary implementation for SMB in Zoom Clients

Zoom clients prior to 5.13.5 contain an improper trust boundary implementation vulnerability. If a victim saves a local recording to an SMB location and later opens it using a link from Zoom’s web portal, an attacker positioned on an adjacent network to the victim client could set up a malicious SMB server to respond to client requests, causing the client to execute attacker controlled executables. This could result in an attacker gaining access to a user's device and data, and remote code execution.

Improper input validation in the Zoom for Windows, Zoom Rooms, Zoom VDI Windows Meeting clients before 5.14.0 may allow an authenticated user to potentially enable an escalation of privilege via network access.

Zoom Clients - Improper Authentication

Improper authentication in some Zoom clients may allow a privileged user to conduct a disclosure of information via local access.

Zoom Rooms Client for Windows - Improper Access Control

Improper access control in the installer for Zoom Rooms Client for Windows before version 5.17.5 may allow an authenticated user to conduct a denial of service via local access.