Main Vulnerability Database Vulnerabilities #VU56657

Improper Certificate Validation in Siemens products - CVE-2020-36478

Published: September 16, 2021

Vulnerability identifier: #VU56657

CSH Severity: Medium

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

CVE-ID: CVE-2020-36478

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
SIMATIC RTU 3000
LOGO! CMR2020
LOGO! CMR2040

Software vendor:
Siemens

Description

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

The vulnerability exists due to improper certificate validation. A remote attacker can perform a man-in-the-middle (MitM) attack.

Install updates from vendor's website.