Ua .Netstandard

An issue was discovered in OPC Foundation OPCFoundation/UA-.NETStandard through 1.5.374.78. A remote attacker can send requests with invalid credentials and cause the server performance to degrade gradually.

Published: 2024-10-22T00:00:00.000Z
Updated: 2024-10-23T18:32:55.127Z

A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.05.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.

Published: 2024-07-05T00:00:00.000Z
Updated: 2024-08-02T02:42:59.324Z

The OPC UA .NET Standard Reference Server before 1.4.371.86. places sensitive information into an error message that may be seen remotely.

Published: 2023-12-12T00:00:00.000Z
Updated: 2024-10-09T13:26:47.799Z

OPC Foundation UA .NET Standard ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC UA ConditionRefresh requests. By sending a large number of requests, an attacker can consume all available resources on the server. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20505.

Published: 2024-05-07T22:55:01.898Z
Updated: 2024-08-02T12:09:43.438Z

A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 could allow a rogue application to establish a secure connection.

Published: 2021-02-16T19:19:19.000Z
Updated: 2024-08-04T16:55:09.676Z

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.

Published: 2018-06-13T18:00:00.000Z
Updated: 2024-08-05T06:31:04.545Z

Failure to validate certificates in OPC Foundation UA Client Applications communicating without security allows attackers with control over a piece of network infrastructure to decrypt passwords.

Published: 2018-10-03T18:00:00.000Z
Updated: 2024-08-05T08:24:03.775Z