Privilege escalation in Zoom Rooms for Windows

1) Link following

EUVDB-ID: #VU66604

Risk: Medium

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-28752

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a symlink following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with SYSTEM user privileges.

Successful exploitation of this vulnerability may result in privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Rooms Client for Windows: 4.6.5 18374.0407 - 5.10.6 1421

CPE2.3

• cpe:2.3:a:zoom_video_communications:zoom_rooms_for_windows:4.6.5:18374.0407:*:*:*:*:*:*
• 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:*:*:*:*:*:*

External links

http://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-22013

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

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.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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