SB2023080839 - Multiple vulnerabilities in Zoom Client for Windows

Description

This security bulletin contains information about 2 vulnerabilities.

1) Insufficient verification of data authenticity (CVE-ID: CVE-2023-36541)

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient verification of data authenticity. A remote attacker attacker can execute arbitrary code on the system.

2) Untrusted search path (CVE-ID: CVE-2023-36540)

CWE-ID: CWE-426 - Untrusted Search Path

CVSSv4: 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

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

The vulnerability exists due to usage of an untrusted search path in the installer for Zoom Desktop Client for Windows. A local user can place a malicious file into the folder along with the installer application and execute arbitrary code with elevated privileges.

Remediation

Install update from vendor's website.

References

• https://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-23027
• https://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-23026