CVE-2020-7540 Information

Description

A CWE-306: Missing Authentication for Critical Function vulnerability exists in the Web Server on Modicon M340 Legacy Offers Modicon Quantum and Modicon Premium and associated Communication Modules (see security notification for affected versions) that could cause unauthenticated command execution in the controller when sending special HTTP requests.

CVSS Vector

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

Reference

https://www.se.com/ww/en/download/document/SEVD-2020-343-04/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8