Vulnerability identifier: #VU28566

Vulnerability risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-6109

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zoom Client for Windows
Client/Desktop applications / Office applications

Vendor: Zoom Video Communications, Inc.

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote authenticated attacker can send a specially crafted chat message and cause an arbitrary file write, leading to arbitrary code execution.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Zoom Client for Windows: 4.6.10 20033.0407

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1055

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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