QID 378723

Date Published: 2023-08-17

QID 378723: Zoom Client and Rooms Information Disclosure Vulnerability (ZSB-23025)

Zoom provides video communications with a cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems.

Zoom encrypts in-meeting chat messages using a per-meeting key and then transmits these encrypted messages between user devices and Zoom using TLS encryption. In the affected products, a copy of each in-meeting chat message was also sent encrypted only using TLS and not with the per-meeting key, including messages sent during End-to-End Encrypted (E2EE) meetings.

Affected Versions:
Zoom for Windows clients versions 5.15.0 and 5.15.1
Zoom for Linux clients version 5.15.0 only
Zoom for Mac clients version 5.15.0 only
Zoom Rooms client for Windows version 5.15.0 only
Zoom Rooms client for Windows version 5.15.0 only

QID Detection Logic (Authenticated):
This authenticated QID detects vulnerable Zoom Client and Rooms for affected versions(Windows, Linux and macOS)

Successful exploitation of this vulnerability may allow a remote attacker to gain access of sensitive information.

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 4.9 severity.

Solution

Customers are advised to upgrade to Zoom Rooms 5.15.1, Zoom Client 5.15.2 for Windows and 5.15.1 for Linux and macOS or later to remediate these vulnerabilities.

Vendor References

ZSB-23025 - explore.zoom.us/en/trust/security/security-bulletin/

CVEs related to QID 378723

CVE-2023-36539 |

Software Advisories

Advisory ID	Software	Component	Link
ZSB-23025			explore.zoom.us/en/trust/security/security-bulletin/

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