#VU27546 Link following


Published: 2020-05-05

Vulnerability identifier: #VU27546

Vulnerability risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-11443

CWE-ID: CWE-59

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Zoom Client for Windows
Client/Desktop applications / Office applications

Vendor: Zoom Video Communications, Inc.

Description

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

The vulnerability exists due to MSI installer in Zoom follows symbolic links. A local user can place a specially crafted file into a writable location, trick the victim into installing Zoom client into that location and execute arbitrary code on the system with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Zoom Client for Windows: 0.9.10042.0911 - 4.6.11 20559.0413


CPE

External links
http://support.zoom.us/hc/en-us/articles/201361953-New-Updates-for-Windows
http://support.zoom.us/hc/en-us/articles/360043036451-Security-CVE-2020-11443


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.

Is there known malware, which exploits this vulnerability?

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


Latest bulletins with this vulnerability