ByteOS Network

NVD Vulnerability Details :

CVE-2019-5636

Modified

Source-cve@rapid7.com

Published At-21 Nov, 2019 | 20:15

Updated At-04 Feb, 2020 | 23:15

When a Beckhoff TwinCAT Runtime receives a malformed UDP packet, the ADS Discovery Service shuts down. Note that the TwinCAT devices are still performing as normal. This issue affects TwinCAT 2 version 2304 (and prior) and TwinCAT 3.1 version 4204.0 (and prior).

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Secondary	3.1	5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Primary	2.0	5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P

CPE Matches

Beckhoff Automation GmbH & Co. KG

>>twincat>>2.0

cpe:2.3:a:beckhoff:twincat:2.0:build2304:*:*:*:*:*:*

Beckhoff Automation GmbH & Co. KG

>>twincat>>3.1

cpe:2.3:a:beckhoff:twincat:3.1:build4024.0:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-404	Primary	nvd@nist.gov
CWE-404	Secondary	cve@rapid7.com

References

Hyperlink	Source	Resource
https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/	cve@rapid7.com	Exploit Third Party Advisory
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf	cve@rapid7.com	Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History