CVE-2020-7566 Information

Description

A CWE-334: Small Space of Random Values vulnerability exists in Modicon M221 (all references all versions) that could allow the attacker to break the encryption keys when the attacker has captured the traffic between EcoStruxure Machine - Basic software and Modicon M221 controller.

CVSS Vector

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

Reference

https://www.se.com/ww/en/download/document/SEVD-2020-315-05/ https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.3