Insecure URL parsing in Zoom Rooms for Conference Room

1) Input validation error

EUVDB-ID: #VU68630

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

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 update from vendor's website.

Vulnerable software versions

Zoom Rooms Client for macOS: 5.0.0 2236.0426 - 5.10.3 653.0422

Zoom Rooms Client for Windows: 5.0.0 1420.0426 - 5.12.0

CPE2.3

• cpe:2.3:a:zoom_video_communications:zoom_rooms_for_macos:5.0.0:2236.0426:*:*:*:*:*:*
• cpe:2.3:a:zoom_video_communications:zoom_rooms_for_macos:5.0.5:2542.0703:*:*:*:*:*:*
• cpe:2.3:a:zoom_video_communications:zoom_rooms_for_macos:5.1.2:2806.0821:*:*:*:*:*:*
• cpe:2.3:a:zoom_video_communications:zoom_rooms_for_windows:5.0.0:1420.0426:*:*:*:*:*:*
• cpe:2.3:a:zoom_video_communications:zoom_rooms_for_windows:5.0.2:1459.0524:*:*:*:*:*:*
• cpe:2.3:a:zoom_video_communications:zoom_rooms_for_windows:5.0.4:1469.0529:*:*:*:*:*:*

External links

https://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.