Vulnerability identifier: #VU29632

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-20

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 execute arbitrary code on the target system.

The vulnerability exists due to insufficient validation of user-supplied input, related to video call feature. A remote attacker can trick the victim to join a conference and turn on the camera to execute arbitrary code on the system.

Note, the vulnerability affects Zoom installations on Microsoft Windows 7 and older operating systems, that are no longer supportde by Microsoft.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Zoom Client for Windows: 5.0.3 24951.0515 - 5.1.2 28642.0705

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External links
http://blog.0patch.com/2020/07/remote-code-execution-vulnerability-in.html

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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.