Privilege escalation in Zoom Client for macOS

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU66608

Risk: Low

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:Clear]

CVE-ID: CVE-2022-28757

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to insufficient patch for #VU66605 (CVE-2022-28756). A local user can bypass restrictions applied to the auto update process and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Workplace Desktop App for macOS: 5.11.5 9788

CPE2.3

• cpe:2.3:a:zoom_video_communications:zoom_client_for_macos:5.11.5:9788:*:*:*:*:*:*

External links

https://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-22019

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.