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.
| Software | From | Fixed in |
|---|---|---|
| opcfoundation / ua-.netstandard | - | 1.03.352.10.x |
| opcfoundation / ua-.net-legacy | - | 1.03.342.x |
OPCFoundation.NetStandard.Opc.Ua
|
- | 1.3.352.12 |