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CVE-2019-5637

Beckhoff TwinCAT Profinet Driver Divide-by-Zero Denial of Service

Published: Nov 21, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-369
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.4%
Top 30.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

When Beckhoff TwinCAT is configured to use the Profinet driver, a denial of service of the controller could be reached by sending a malformed UDP packet to the device. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-369

Affected Products

twincatbeckhoff
Embedded
ICS / OT / IoT / plc-scada-hmi
TwinCATBeckhoff Automation GmbH & Co. KG
Mixed
ICS / OT / IoT / plc-scada-hmi
TwinCAT 2Beckhoff
Embedded
ICS / OT / IoT / plc-scada-hmi
TwinCAT 3.1Beckhoff
Embedded
ICS / OT / IoT / plc-scada-hmi
beckhoffcommercialICS / OT / IoTaka twincat, twincat/bsd
beckhoff automation gmbh & co. kgcommercialDEICS / OT / IoTaka beckhoff, twincat

Exploitability

Official Patch Available
Workaround Available

References

https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/
blog.rapid7.com
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-007.pdf
download.beckhoff.com
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-007.pdf
download.beckhoff.com

Timeline

Published
Nov 21, 2019
Last Updated
Nov 21, 2024

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