Insecure URL parsing in Zoom Client for Meetings

1) Input validation error

EUVDB-ID: #VU68630

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-2022-28763

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 parsing of URLs. A remote attacker can trick the victim into opening a specially crafted link and direct the user to connect to an arbitrary network address, leading to additional attacks including session takeovers.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Client for Windows: 5.0.0 23168.0427 - 5.12.0 8964

Zoom Client for Linux: 5.1.418436.0628 - 5.12.0 4682

Zoom Client for iOS: 5.0.0 23161.0427 - 5.12.0 4802

Zoom Client for macOS: 5.0.0 23186.0427 - 5.12.0 11129

Zoom Client for Android: 5.0.1 23478.0429 - 5.12.1 8902

External links

http://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-22024

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.