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CVE-2020-12526

MEDIUM

5.3

Description

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.

Details CVE

Score CVSS v3.15.3

SeveriteMEDIUM

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie5/13/2021

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

beckhoff:ipc_diagnostics_ua_serverbeckhoff:tf6100beckhoff:twincat_opc_ua_server

Faiblesses (CWE)

CWE-20CWE-20

References

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)

Correlations IOC

Aucune correlation enregistree

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