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Modicon M580 Firmware CVE-2019-6821

MEDIUM
Use of Insufficiently Random Values (CWE-330)
2019-05-22 cybersecurity@se.com
Information Disclosure Modicon M580 Firmware Modicon M340 Firmware Modicon Quantum Firmware Modicon Premium Firmware
6.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

1
CVE Published
May 22, 2019 - 20:29 nvd
MEDIUM 6.5

DescriptionNVD

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.

AnalysisAI

30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

Technical ContextAI

This vulnerability is classified under CWE-330. 30, and all firmware versions of Modicon M340, Modicon Premium, Modicon Quantum. Affected products include: Schneider-Electric Modicon M580 Firmware, Schneider-Electric Modicon M340 Firmware, Schneider-Electric Modicon Quantum Firmware, Schneider-Electric Modicon Premium Firmware.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

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Same weakness CWE-330 – Use of Insufficiently Random Values

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Same technique Information Disclosure

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CVE-2019-6821 vulnerability details – vuln.today
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