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CVE-2020-12526

MEDIUM

5.3

Beschreibung

TwinCAT OPC UA Server in versions up to 2.3.0.12 and IPC Diagnostics UA Server in versions up to 3.1.0.1 from Beckhoff Automation GmbH & Co. KG are vulnerable to denial of service attacks. The attacker needs to send several specifically crafted requests to the running OPC UA server. After some of these requests the OPC UA server is no longer responsive to any client. This is without effect to the real-time functionality of IPCs.

CVE Details

CVSS v3.1 Bewertung5.3

SchweregradMEDIUM

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht5/13/2021

Zuletzt geandert11/21/2024

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

beckhoff:ipc_diagnostics_ua_serverbeckhoff:tf6100beckhoff:twincat_opc_ua_server

Schwachen (CWE)

CWE-20CWE-20

Referenzen

https://cert.vde.com/en-us/advisories/vde-2020-051(info@cert.vde.com)

https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2021-001.pdf(info@cert.vde.com)

https://cert.vde.com/en-us/advisories/vde-2020-051(af854a3a-2127-422b-91ae-364da2661108)

https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2021-001.pdf(af854a3a-2127-422b-91ae-364da2661108)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.