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CVE-2020-12526

MEDIUM

5.3

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.15.3

SeveridadMEDIUM

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

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado5/13/2021

Ultima modificacion11/21/2024

Fuentenvd

Avistamientos honeypot0

Productos afectados

beckhoff:ipc_diagnostics_ua_serverbeckhoff:tf6100beckhoff:twincat_opc_ua_server

Debilidades (CWE)

CWE-20CWE-20

Referencias

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)

Correlaciones IOC

Sin correlaciones registradas

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