CVE-2019-5636

Beckhoff TwinCAT Discovery Service Denial of Service

CVSS 5.3 MEDIUMEPSS 1.4%CWE-404

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).

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Productos afectados

Beckhoff · TwinCAT 2 Beckhoff · TwinCAT 3.1

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Referencias

https://blog.rapid7.com/2019/10/08/r7-2019-32-denial-of-service-vulnerabilities-in-beckhoff-twincat-plc-environment-fixed/https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2019-004.pdf