CVE-2018-8356 — Improper Certificate Validation in...

MEDIUM

Improper Certificate Validation in Microsoft .NET Framework components

Published May 14, 2022Updated November 8, 2023Source: osv

Summary

A security feature bypass vulnerability exists when Microsoft .NET Framework components do not correctly validate certificates, aka ".NET Framework Security Feature Bypass Vulnerability." This affects .NET Framework 4.7.2, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, ASP.NET Core 1.1, Microsoft .NET Framework 4.5.2, ASP.NET Core 2.0, ASP.NET Core 1.0, .NET Core 1.1, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 1.0, .NET Core 2.0, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 4.7.2.

Advisory Timeline

First published May 14, 2022 (1612 days ago).
Last revised November 8, 2023 — 543 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet

Update System.ServiceModel.Http to 4.4.4 or later

dotnet add package System.ServiceModel.Http --version 4.4.4

NuGet

Update System.ServiceModel.NetTcp to 4.5.3 or later

dotnet add package System.ServiceModel.NetTcp --version 4.5.3

NuGet

Update System.ServiceModel.Primitives to 4.1.3 or later

dotnet add package System.ServiceModel.Primitives --version 4.1.3

NuGet

Update System.ServiceModel.NetTcp to 4.1.3 or later

dotnet add package System.ServiceModel.NetTcp --version 4.1.3

NuGet

Update System.ServiceModel.NetTcp to 4.4.4 or later

dotnet add package System.ServiceModel.NetTcp --version 4.4.4

NuGet

Update System.ServiceModel.Http to 4.3.3 or later

dotnet add package System.ServiceModel.Http --version 4.3.3

NuGet

Update System.ServiceModel.Http to 4.5.3 or later

dotnet add package System.ServiceModel.Http --version 4.5.3

NuGet

Update System.ServiceModel.Security to 4.0.4 or later

dotnet add package System.ServiceModel.Security --version 4.0.4

NuGet

Update System.ServiceModel.NetTcp to 4.3.3 or later

dotnet add package System.ServiceModel.NetTcp --version 4.3.3

NuGet

Update System.ServiceModel.Duplex to 4.3.3 or later

dotnet add package System.ServiceModel.Duplex --version 4.3.3

NuGet

Update System.ServiceModel.Primitives to 4.4.4 or later

dotnet add package System.ServiceModel.Primitives --version 4.4.4

NuGet

Update System.ServiceModel.Primitives to 4.3.3 or later

dotnet add package System.ServiceModel.Primitives --version 4.3.3

NuGet

Update System.Private.ServiceModel to 4.1.3 or later

dotnet add package System.Private.ServiceModel --version 4.1.3

NuGet

Update System.ServiceModel.Http to 4.1.3 or later

dotnet add package System.ServiceModel.Http --version 4.1.3

NuGet

Update System.ServiceModel.Duplex to 4.5.3 or later

dotnet add package System.ServiceModel.Duplex --version 4.5.3

NuGet

Update System.ServiceModel.Security to 4.5.3 or later

dotnet add package System.ServiceModel.Security --version 4.5.3

NuGet

Update System.Private.ServiceModel to 4.5.3 or later

dotnet add package System.Private.ServiceModel --version 4.5.3

NuGet

Update System.ServiceModel.Duplex to 4.4.4 or later

dotnet add package System.ServiceModel.Duplex --version 4.4.4

NuGet

Update System.ServiceModel.Duplex to 4.0.4 or later

dotnet add package System.ServiceModel.Duplex --version 4.0.4

NuGet

Update System.Private.ServiceModel to 4.4.4 or later

dotnet add package System.Private.ServiceModel --version 4.4.4

NuGet

Update System.ServiceModel.Primitives to 4.5.3 or later

dotnet add package System.ServiceModel.Primitives --version 4.5.3

NuGet

Update System.Private.ServiceModel to 4.3.3 or later

dotnet add package System.Private.ServiceModel --version 4.3.3

NuGet

Update System.ServiceModel.Security to 4.4.4 or later

dotnet add package System.ServiceModel.Security --version 4.4.4

NuGet

Update System.ServiceModel.Security to 4.3.3 or later

dotnet add package System.ServiceModel.Security --version 4.3.3

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (24)

Affects 1 ecosystem: nuget (6).

Package	Ecosystem	Affected	Fixed In
System.ServiceModel.Http	nuget	4.4.0, 4.4.1, 4.4.2, 4.4.3	4.4.4
System.ServiceModel.NetTcp	nuget	4.5.0, 4.5.1, 4.5.2	4.5.3
System.ServiceModel.Primitives	nuget	4.0.0, 4.0.1-beta-23225, 4.0.1-beta-23409, 4.1.0 (+4 more)	4.1.3
System.ServiceModel.NetTcp	nuget	4.0.0, 4.0.1-beta-23225, 4.0.1-beta-23409, 4.1.0 (+4 more)	4.1.3
System.ServiceModel.NetTcp	nuget	4.4.0, 4.4.1, 4.4.2, 4.4.3	4.4.4
System.ServiceModel.Http	nuget	4.3.0, 4.3.1, 4.3.2	4.3.3
System.ServiceModel.Http	nuget	4.5.0, 4.5.1, 4.5.2	4.5.3
System.ServiceModel.Security	nuget	4.0.0, 4.0.1, 4.0.1-beta-23225, 4.0.1-beta-23409 (+4 more)	4.0.4
System.ServiceModel.NetTcp	nuget	4.3.0, 4.3.1, 4.3.2	4.3.3
System.ServiceModel.Duplex	nuget	4.3.0, 4.3.1, 4.3.2	4.3.3
System.ServiceModel.Primitives	nuget	4.4.0, 4.4.1, 4.4.1-servicing-25917-01, 4.4.2 (+1 more)	4.4.4
System.ServiceModel.Primitives	nuget	4.3.0, 4.3.1, 4.3.2	4.3.3
System.Private.ServiceModel	nuget	4.0.0, 4.0.1-beta-23225, 4.0.1-beta-23409, 4.1.0 (+4 more)	4.1.3
System.ServiceModel.Http	nuget	4.0.0, 4.0.10, 4.0.10-beta-22605, 4.0.10-beta-22816 (+9 more)	4.1.3
System.ServiceModel.Duplex	nuget	4.5.0, 4.5.1, 4.5.2	4.5.3
System.ServiceModel.Security	nuget	4.5.0, 4.5.1, 4.5.2	4.5.3
System.Private.ServiceModel	nuget	4.5.0, 4.5.1, 4.5.2	4.5.3
System.ServiceModel.Duplex	nuget	4.4.0, 4.4.1, 4.4.2, 4.4.3	4.4.4
System.ServiceModel.Duplex	nuget	4.0.0, 4.0.1, 4.0.1-beta-23225, 4.0.1-beta-23409 (+4 more)	4.0.4
System.Private.ServiceModel	nuget	4.4.0, 4.4.1, 4.4.2, 4.4.3	4.4.4
System.ServiceModel.Primitives	nuget	4.5.0, 4.5.1, 4.5.2	4.5.3
System.Private.ServiceModel	nuget	4.3.0, 4.3.1, 4.3.2	4.3.3
System.ServiceModel.Security	nuget	4.4.0, 4.4.1, 4.4.2, 4.4.3	4.4.4
System.ServiceModel.Security	nuget	4.3.0, 4.3.1, 4.3.2	4.3.3

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-295
Improper Certificate ValidationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 5.5 score means for each attack dimension.

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References

Frequently Asked Questions

What is CVE-2018-8356?: Improper Certificate Validation in Microsoft .NET Framework components This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 5.5/10).
How do I check if my project is affected by CVE-2018-8356?: CVE-2018-8356 affects System.ServiceModel.Http, System.ServiceModel.NetTcp and System.ServiceModel.Primitives (and 3 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2018-8356 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

5.5

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-p9wx-v264-q34p

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