Skip to content

Security Update for the OPC UA .NET Standard Stack

Moderate
randy-armstrong published GHSA-4rcc-7pg7-f57f Mar 3, 2025

Package

nuget OPCFoundation.NetStandard.Opc.Ua.Bindings.Https (NuGet)

Affected versions

<1.5.374.158

Patched versions

1.5.374.158

Description

This security update resolves a vulnerability in the OPC UA .NET Standard Stack that allows an
unauthorized attacker to bypass application authentication when using HTTPS endpoints.

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

CVE ID

CVE-2024-42513

Weaknesses

Authentication Bypass by Primary Weakness

The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error. Learn more on MITRE.

Credits