CVE-2020-12526 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Beckhoff	Ipc Diagnostics Ua Server Tf6100 Twincat Opc Ua Server

Configuration 1 [-]

OR	cpe:2.3:a:beckhoff:ipc_diagnostics_ua_server::::::::
	cpe:2.3:a:beckhoff:tf6100::::::::
	cpe:2.3:a:beckhoff:twincat_opc_ua_server::::::::

No data.

References

Link	Providers
https://cert.vde.com/en-us/advisories/vde-2020-051
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2021-001.pdf

History

No history.

MITRE

Status: PUBLISHED

Assigner: CERTVDE

Published: 2021-05-13T13:45:24.098776Z

Updated: 2024-09-16T18:29:21.532Z

Reserved: 2020-04-30T00:00:00

Link: CVE-2020-12526

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-05-13T14:15:17.457

Modified: 2024-11-21T04:59:52.260

Link: CVE-2020-12526

Redhat

No data.

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