Remote code execution in Zoom Client for Meetings

1) Input validation error

EUVDB-ID: #VU66376

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28755

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input when parsing meeting URL. A remote attacker can trick the victim to follow a specially crafted URL, which can direct the user to connect to an arbitrary network address, leading to additional attacks including the potential for remote code execution through launching executables from arbitrary paths.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Client for Windows: 5.0.0 23168.0427 - 5.10.7 6120

Virtual Desktop Infrastructure (VDI): 5.0.1 - 5.10.6

Zoom Client for Android: 5.0.1 23478.0429 - 5.10.6 6331

Zoom Client for macOS: 5.0.0 23186.0427 - 5.10.7 7748

Zoom Client for iOS: 5.0.0 23161.0427 - 5.10.6 3594

Zoom Client for Linux: 5.1.418436.0628 - 5.10.7 3311

External links

http://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-22016

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.