Vulnerability identifier: #VU63591

Vulnerability risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-22787

CWE-ID: CWE-297

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zoom Client for Windows
Client/Desktop applications / Office applications
Zoom Client for macOS
Client/Desktop applications / Office applications
Zoom Client for Linux
Client/Desktop applications / Office applications
Zoom Client for Android
Mobile applications / Apps for mobile phones
Zoom Client for iOS
Mobile applications / Apps for mobile phones

Vendor: Zoom Video Communications, Inc.

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to software fails to properly validate the hostname during a server switch request. A remote attacker can perform a man-in-the-middle (MitM) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Zoom Client for Windows: 0.9.10042.0911 - 5.5.4 13142.0301

Zoom Client for Android: 4.6.11 20553.0413 - 5.9.6 4756

Zoom Client for macOS: 4.6.9 19273.0402 - 5.9.6 4993

Zoom Client for Linux: 5.1.418436.0628 - 5.9.6 2225

Zoom Client for iOS: 4.6.10 20012.0407 - 5.9.6 2729

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External links
http://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-22009

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.