GitHub Advisoryadvisory · NuGet

GHSA-h958-fxgg-g7w3 Security Update for the OPC UA .NET Standard Stack

MEDIUM Published 2025-03-03 Modified 2025-05-27 Official page ↗
Aliases
CVE-2024-42512
Ecosystem
NuGet
Packages
OPCFoundation.NetStandard.Opc.Ua.Core
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-208, CWE-639
Reviewed
2025-03-03

Affected packages

• NuGet OPCFoundation.NetStandard.Opc.Ua.Core: < 1.5.374.158 → fixed in 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 the deprecated Basic128Rsa15 security policy is enabled. Note that the Basic128Rsa15 is disabled by default so most users will not be affected. When this patch is applied the Server closes all channels using the Basic128Rsa15 if an attack is detected. This introduces a DoS before any compromise can occur which is preferable to a compromise. To prevent this failure, applications must stop using Basic128Rsa15.

Related

Alias · CVE (1)

  • CVE-2024-42512 Vulnerability in the OPC UA .NET Standard Stack before 1.5.374.158 allows an unauthorized attacker to bypass application authentication… vulnerability

Weakness · CWE (2)

  • CWE-208 Observable Timing Discrepancy weakness
  • CWE-639 Authorization Bypass Through User-Controlled Key weakness

References