CVE-2020-7564 Information

Description

A CWE-120: Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) vulnerability exists in the Web Server on Modicon M340 Modicon Quantum and Modicon Premium Legacy offers and their Communication Modules (see notification for details) which could cause write access and the execution of commands when uploading a specially crafted file on the controller over FTP.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Reference

https://www.se.com/ww/en/download/document/SEVD-2020-315-01/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8