CVE Vulnerability

CVE-2020-7566

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 5.5 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.3 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.1 / Impact : 5.2

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.se.com/ww/en/download/document/SEVD-2020-315-05/ Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-04 Third Party Advisory US Government Resource
Configurations

Configuration 1
Information

Published : 2020-11-19 10:15

Updated : 2022-02-03 04:14

NVD link : CVE-2020-7566

Mitre link : CVE-2020-7566

Products Affected

Modicon M221 Firmware

Schneider-electric

CWE
CWE-334

Small Space of Random Values