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CVE-2020-12526

MEDIUM

5.3

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.15.3

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado5/13/2021

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

beckhoff:ipc_diagnostics_ua_serverbeckhoff:tf6100beckhoff:twincat_opc_ua_server

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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