Privilege escalation in Zoom Client for Meetings Installer for macOS

1) Incorrect default permissions

EUVDB-ID: #VU69358

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-28768

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

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

The vulnerability exists due to incorrect default permissions in the Zoom Client for Meetings Installer. A local user can execute arbitrary code with root privileges during the install process.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Client for macOS: 5.0.0 23186.0427 - 5.12.3 11845

External links

http://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-22029

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.