Information disclosure in Zoom Client for Windows

1) Input validation error

EUVDB-ID: #VU79133

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-39209

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Workplace Desktop App for Windows: 5.0.0 23168.0427 - 5.15.3 18551

CPE2.3

• cpe:2.3:a:zoom_video_communications:zoom_client_for_windows:5.0.0:23168.0427:*:*:*:*:*:*
• cpe:2.3:a:zoom_video_communications:zoom_client_for_windows:5.0.1:23502.0430:*:*:*:*:*:*
• cpe:2.3:a:zoom_video_communications:zoom_client_for_windows:5.0.2:24046.0510:*:*:*:*:*:*

External links

https://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-23041

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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