Information disclosure in Zoom for Windows

1) Information disclosure

EUVDB-ID: #VU73692

Risk: Low

CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-22880

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to the recent update to the Microsoft Edge WebView2 runtime used by the affected Zoom clients transmitted text to Microsoft’s online Spellcheck service instead of the local Windows Spellcheck. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Client for Windows: 5.0.0 23168.0427 - 5.13.0 11216

Zoom Rooms for Windows: 5.7.3 248 - 5.13.0 2301

Virtual Desktop Infrastructure (VDI): 5.9.1 - 5.13.0

External links

http://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-23001

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.