🛡️ CVE-2020-29457 — opcfoundation.netstandard.opc.ua.core

⚪ Unknown ✅ No Known Exploit CWE-295 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Improper Certificate Validation in OPCFoundation.NetStandard.Opc.Ua.Core

A Privilege Elevation vulnerability in OPC UA .NET Standard Stack 1.4.363.107 allows attackers to establish a connection using invalid certificates.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs administrative privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

CVE-2020-29457 is classified as CWE-295: Improper Certificate Validation. A TLS certificate is accepted without proper verification, so a man-in-the-middle can present their own.

Affected software

CVE-2020-29457 is recorded against 1 package.

  • opcfoundation.netstandard.opc.ua.core (fixed in 1.4.365.10)

Timeline and source

Published on 19 November 2021 and last revised on 22 February 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
opcfoundation.org (Web)
www.nuget.org (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CWE CWE-295
Public Exploit ✅ No
Source OSV
Published 2021-11-19
Updated 2026-08-12
Modified 2024-02-22
Fix URL N/A

Affected Packages

Software From version Fixed in
opcfoundation.netstandard.opc.ua.core — 1.4.365.10

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