CVE-2019-6821 Information

Description

CWE-330: Use of Insufficiently Random Values vulnerability which could cause the hijacking of the TCP connection when using Ethernet communication in Modicon M580 firmware versions prior to V2.30 and all firmware versions of Modicon M340 Modicon Premium Modicon Quantum.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://www.securityfocus.com/bid/108366 https://ics-cert.us-cert.gov/advisories/ICSA-19-136-01 https://www.schneider-electric.com/en/download/document/SEVD-2019-134-03/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5