CVE-2022-28758

Zoom On-Premise Deployments: Improper Access Control

Zoom On-Premise Meeting Connector MMR before version 4.8.20220815.130 contains an improper access control vulnerability. As a result, a malicious actor could obtain the audio and video feed of a meeting they were not authorized to join and cause other meeting disruptions.

CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Zoom On-premise Meeting Connector Mmr

CVE-2022-28757

Local Privilege Escalation in Auto Updater for Zoom Client for Meetings for macOS

The Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with version 5.7.3 and before 5.11.6 contains a vulnerability in the auto update process. A local low-privileged user could exploit this vulnerability to escalate their privileges to root.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Meetings

CVE-2022-28756

Local Privilege Escalation in Auto Updater for Zoom Client for Meetings for macOS

The Zoom Client for Meetings for macOS (Standard and for IT Admin) starting with version 5.7.3 and before 5.11.5 contains a vulnerability in the auto update process. A local low-privileged user could exploit this vulnerability to escalate their privileges to root.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Meetings

CVE-2022-28755

Improper URL parsing in Zoom Clients

The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.11.0 are susceptible to a URL parsing vulnerability. If a malicious Zoom meeting URL is opened, the malicious link may direct the user to connect to an arbitrary network address, leading to additional attacks including the potential for remote code execution through launching executables from arbitrary paths.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Virtual Desktop Infrastructure Zoom

CVE-2022-28754

Zoom On-Premise Deployments: Improper Access Control Vulnerability

Zoom On-Premise Meeting Connector MMR before version 4.8.129.20220714 contains an improper access control vulnerability. As a result, a malicious actor can join a meeting which they are authorized to join without appearing to the other participants, can admit themselves into the meeting from the waiting room, and can become host and cause other meeting disruptions.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Meeting Connector

CVE-2022-28753

Zoom On-Premise Deployments: Improper Access Control Vulnerability

Zoom On-Premise Meeting Connector MMR before version 4.8.129.20220714 contains an improper access control vulnerability. As a result, a malicious actor can join a meeting which they are authorized to join without appearing to the other participants, can admit themselves into the meeting from the waiting room, and can become host and cause other meeting disruptions.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Meeting Connector

CVE-2022-28752

Local Privilege Escalation in the Zoom Rooms for Windows Client

Zoom Rooms for Conference Rooms for Windows versions before 5.11.0 are susceptible to a Local Privilege Escalation vulnerability. A local low-privileged malicious user could exploit this vulnerability to escalate their privileges to the SYSTEM user.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Rooms

CVE-2022-28751

Local Privilege Escalation in Zoom Client for Meetings for MacOS

The Zoom Client for Meetings for MacOS (Standard and for IT Admin) before version 5.11.3 contains a vulnerability in the package signature validation during the update process. A local low-privileged user could exploit this vulnerability to escalate their privileges to root.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Meetings

CVE-2022-28750

Zoom On-Premise Deployments: Stack Buffer Overflow in Meeting Connector

Zoom On-Premise Meeting Connector Zone Controller (ZC) before version 4.8.20220419.112 fails to properly parse STUN error codes, which can result in memory corruption and could allow a malicious actor to crash the application. In versions older than 4.8.12.20211115, this vulnerability could also be leveraged to execute arbitrary code.

CVSS 3.1 · 7.5 High EPSS 2.2% KEV · Not listed

Vendors

Zoom

Products

Meeting Connector

CVE-2022-28749

Insufficient Authorization Check During Meeting Join

Zooms On-Premise Meeting Connector MMR before version 4.8.113.20220526 fails to properly check the permissions of a Zoom meeting attendee. As a result, a threat actor in the Zooms waiting room can join the meeting without the consent of the host.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

On-premise Meeting Connector Multimedia Router

CVE-2022-22788

DLL injection in Zoom Opener installer for Zoom and Zoom Rooms clients

The Zoom Opener installer is downloaded by a user from the Launch meeting page, when attempting to join a meeting without having the Zoom Meeting Client installed. The Zoom Opener installer for Zoom Client for Meetings before version 5.10.3 and Zoom Rooms for Conference Room for Windows before version 5.10.3 are susceptible to a DLL injection attack. This vulnerability could be used to run arbitrary code on the victims host.

CVSS 3.1 · 7.1 High EPSS 1.5% KEV · Not listed

Vendors

Zoom

Products

Meetings Rooms

CVE-2022-22787

Insufficient hostname validation during Clusterswitch message in Zoom Client for Meetings

The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.10.0 fails to properly validate the hostname during a server switch request. This issue could be used in a more sophisticated attack to trick an unsuspecting users client to connect to a malicious server when attempting to use Zoom services.

CVSS 3.1 · 5.9 Medium EPSS 3.7% KEV · Not listed

Vendors

Zoom

Products

Meetings

CVE-2022-22785

Improperly constrained session cookies in Zoom Client for Meetings

The Zoom Client for Meetings (for Android, iOS, Linux, MacOS, and Windows) before version 5.10.0 failed to properly constrain client session cookies to Zoom domains. This issue could be used in a more sophisticated attack to send an unsuspecting users Zoom-scoped session cookies to a non-Zoom domain. This could potentially allow for spoofing of a Zoom user.

CVSS 3.1 · 5.9 Medium EPSS 3.5% KEV · Not listed

Vendors

Zoom

Products

Meetings

CVE-2022-22784

Improper XML Parsing in Zoom Client for Meetings

The Zoom Client for Meetings (for Android, iOS, Linux, MacOS, and Windows) before version 5.10.0 failed to properly parse XML stanzas in XMPP messages. This can allow a malicious user to break out of the current XMPP message context and create a new message context to have the receiving users client perform a variety of actions.This issue could be used in a more sophisticated attack to forge XMPP messages from the server.

CVSS 3.1 · 8.1 High EPSS 4.1% KEV · Not listed

Vendors

Zoom

Products

Meetings

CVE-2022-22783

Process memory exposure in Zoom on-premise Meeting services

A vulnerability in Zoom On-Premise Meeting Connector Controller version 4.8.102.20220310 and On-Premise Meeting Connector MMR version 4.8.102.20220310 exposes process memory fragments to connected clients, which could be observed by a passive attacker.

CVSS 3.1 · 6.5 Medium EPSS 1.0% KEV · Not listed

Vendors

Zoom

Products

Zoom On-premise Meeting Connector Controller Zoom On-premise Meeting Connector Mmr

CVE-2022-22782

Local privilege escalation in Windows Zoom Clients

The Zoom Client for Meetings for Windows prior to version 5.9.7, Zoom Rooms for Conference Room for Windows prior to version 5.10.0, Zoom Plugins for Microsoft Outlook for Windows prior to version 5.10.3, and Zoom VDI Windows Meeting Clients prior to version 5.9.6; was susceptible to a local privilege escalation issue during the installer repair operation. A malicious actor could utilize this to potentially delete system level files or folders, causing integrity or availability issues on the user’s host machine.

CVSS 3.1 · 7.9 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Meetings Rooms For Conference Rooms Vdi Windows Meeting Clients and 1 more

CVE-2022-22781

Update package downgrade in Zoom Client for Meetings for MacOS

The Zoom Client for Meetings for MacOS (Standard and for IT Admin) prior to version 5.9.6 failed to properly check the package version during the update process. This could lead to a malicious actor updating an unsuspecting user’s currently installed version to a less secure version.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Zoom

Products

Meetings

CVE-2022-22780

Zoom Chat Susceptible to Zip Bombing

The Zoom Client for Meetings chat functionality was susceptible to Zip bombing attacks in the following product versions: Android before version 5.8.6, iOS before version 5.9.0, Linux before version 5.8.6, macOS before version 5.7.3, and Windows before version 5.6.3. This could lead to availability issues on the client host by exhausting system resources.

CVSS 3.1 · 4.7 Medium EPSS 1.7% KEV · Not listed

Vendors

Zoom

Products

Meetings

CVE-2021-34425

Server Side Request Forgery in Zoom Client for Meetings chat

The Zoom Client for Meetings before version 5.7.3 (for Android, iOS, Linux, macOS, and Windows) contain a server side request forgery vulnerability in the chat\'s "link preview" functionality. In versions prior to 5.7.3, if a user were to enable the chat\'s "link preview" feature, a malicious actor could trick the user into potentially sending arbitrary HTTP GET requests to URLs that the actor cannot reach directly.

CVSS 3.1 · 4.7 Medium EPSS < 1% KEV · Not listed

Vendors

Apple Google Linux and 2 more

Products

Iphone Os Macos Android and 3 more

CVE-2021-34424

Process memory exposure in Zoom Client and other products

A vulnerability was discovered in the Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.8.4, Zoom Client for Meetings for Blackberry (for Android and iOS) before version 5.8.1, Zoom Client for Meetings for intune (for Android and iOS) before version 5.8.4, Zoom Client for Meetings for Chrome OS before version 5.0.1, Zoom Rooms for Conference Room (for Android, AndroidBali, macOS, and Windows) before version 5.8.3, Controllers for Zoom Rooms (for Android, iOS, and Windows) before version 5.8.3, Zoom VDI Windows Meeting Client before version 5.8.4, Zoom VDI Azure Virtual Desktop Plugins (for Windows x86 or x64, IGEL x64, Ubuntu x64, HP ThinPro OS x64) before version 5.8.4.21112, Zoom VDI Citrix Plugins (for Windows x86 or x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) before version 5.8.4.21112, Zoom VDI VMware Plugins (for Windows x86 or x64, Mac Universal Installer & Uninstaller, IGEL x64, eLux RP6 x64, HP ThinPro OS x64, Ubuntu x64, CentOS x 64, Dell ThinOS) before version 5.8.4.21112, Zoom Meeting SDK for Android before version 5.7.6.1922, Zoom Meeting SDK for iOS before version 5.7.6.1082, Zoom Meeting SDK for macOS before version 5.7.6.1340, Zoom Meeting SDK for Windows before version 5.7.6.1081, Zoom Video SDK (for Android, iOS, macOS, and Windows) before version 1.1.2, Zoom on-premise Meeting Connector before version 4.8.12.20211115, Zoom on-premise Meeting Connector MMR before version 4.8.12.20211115, Zoom on-premise Recording Connector before version 5.1.0.65.20211116, Zoom on-premise Virtual Room Connector before version 4.4.7266.20211117, Zoom on-premise Virtual Room Connector Load Balancer before version 2.5.5692.20211117, Zoom Hybrid Zproxy before version 1.0.1058.20211116, and Zoom Hybrid MMR before version 4.6.20211116.131_x86-64 which potentially allowed for the exposure of the state of process memory. This issue could be used to potentially gain insight into arbitrary areas of the product's memory.

CVSS 3.1 · 7.5 High EPSS 1.7% KEV · Not listed

Vendors

Apple Google Linux and 2 more

Products

Iphone Os Macos Android and 27 more