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.
References
Link | Resource |
---|---|
https://cert.vde.com/en-us/advisories/vde-2020-051 | Third Party Advisory |
https://download.beckhoff.com/download/Document/product-security/Advisories/advisory-2021-001.pdf | Vendor Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: CERTVDE
Published: 2021-04-27T00:00:00
Updated: 2021-05-13T13:45:24
Reserved: 2020-04-30T00:00:00
Link: CVE-2020-12526
JSON object: View
NVD Information
Status : Analyzed
Published: 2021-05-13T14:15:17.457
Modified: 2021-05-25T15:02:14.033
Link: CVE-2020-12526
JSON object: View
Redhat Information
No data.
CWE