Description
An issue was discovered in OPC UA .NET Standard Stack and Sample Code before GitHub commit 2018-04-12, and OPC UA .NET Legacy Stack and Sample Code before GitHub commit 2018-03-13. A vulnerability in OPC UA applications can allow a remote attacker to determine a Server's private key by sending carefully constructed bad UserIdentityTokens as part of an oracle attack.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| NuGet | OPCFoundation.NetStandard.Opc.Ua | < 1.3.352.12 | 1.3.352.12 | GHSA-gr4c-5rq6-cgh3 |
Advisories 2
- VDE-2019-009 PHOENIX CONTACT: Multiple Vulnerabilities in AXC F 2152 CERT@VDE · May 22, 2025
- ICSA-19-155-01 PHOENIX CONTACT PLCNext AXC F 2152 CISA ICS & IT advisories · Jun 4, 2019
References
- https://opcfoundation-onlineapplications.org/faq/SecurityBulletins/OPC_Foundation_Security_Bulletin_CVE-2018-7559.pdf
- https://github.com/OPCFoundation/UA-.NETStandard/commit/ebcf026a54dd0c9052cff009d96d827ac923d150
- https://github.com/OPCFoundation/UA-.NET-Legacy/commit/e2a781b38efb8686d2bd850c2f2372b5c670bc45
- 108688 vdb-entry