microsoft.aspnetcore.signalr.protocols.messagepack.6.0.10.nupkg: 2 vulnerabilities (highest severity is: 7.5)

[mend-bolt-for-github]

Vulnerable Library - microsoft.aspnetcore.signalr.protocols.messagepack.6.0.10.nupkg

Path to dependency file: /src/Certify.Server/Certify.Server.Api.Public.Tests/Certify.Server.Api.Public.Tests.csproj

Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.text.json/6.0.6/system.text.json.6.0.6.nupkg

Vulnerabilities

CVE	Severity	CVSS	Dependency	Type	Fixed in (microsoft.aspnetcore.signalr.protocols.messagepack.6.0.10.nupkg version)	Remediation Possible**
CVE-2024-48924	High	7.5	messagepack.2.1.90.nupkg	Transitive	N/A*	❌
CVE-2024-43485	High	7.5	system.text.json.6.0.6.nupkg	Transitive	N/A*	❌

*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2024-48924

Vulnerable Library - messagepack.2.1.90.nupkg

Extremely Fast MessagePack(MsgPack) Serializer for C#(.NET, .NET Core, Unity, Xamarin).

Library home page: https://api.nuget.org/packages/messagepack.2.1.90.nupkg

Path to dependency file: /src/Certify.Server/Certify.Server.Api.Public.Tests/Certify.Server.Api.Public.Tests.csproj

Path to vulnerable library: /home/wss-scanner/.nuget/packages/messagepack/2.1.90/messagepack.2.1.90.nupkg

Dependency Hierarchy:

• microsoft.aspnetcore.signalr.protocols.messagepack.6.0.10.nupkg (Root Library)
  • ❌ messagepack.2.1.90.nupkg (Vulnerable Library)

Found in base branch: development

Vulnerability Details

Impact

When this library is used to deserialize messagepack data from an untrusted source, there is a risk of a denial of service attack by an attacker that sends data contrived to produce hash collisions, leading to large CPU consumption disproportionate to the size of the data being deserialized.

This is similar to a prior advisory, which provided an inadequate fix for the hash collision part of the vulnerability.

Patches

The following steps are required to mitigate this risk.

1. Upgrade to a version of the library where a fix is available.
2. Review the steps in this previous advisory to ensure you have your application configured for untrusted data.

Workarounds

If upgrading MessagePack to a patched version is not an option for you, you may apply a manual workaround as follows:

1. Declare a class that derives from MessagePackSecurity.
2. Override the GetHashCollisionResistantEqualityComparer<T> method to provide a collision-resistant hash function of your own and avoid calling base.GetHashCollisionResistantEqualityComparer<T>().
3. Configure a MessagePackSerializerOptions with an instance of your derived type by calling WithSecurity on an existing options object.
4. Use your custom options object for all deserialization operations. This may be by setting the MessagePackSerializer.DefaultOptions static property, if you call methods that rely on this default property, and/or by passing in the options object explicitly to any Deserialize method.

References

• Learn more about best security practices when reading untrusted data with MessagePack 1.x or MessagePack 2.x.
• The .NET team's discussion on hash collision vulnerabilities of their HashCode struct.

For more information

If you have any questions or comments about this advisory:

• Start a public discussion
• Email us privately

Publish Date: 2024-10-17

URL: CVE-2024-48924

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-4qm4-8hg2-g2xm

Release Date: 2024-10-17

Fix Resolution: MessagePack - 2.5.187,3.0.214-rc.1

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CVE-2024-43485

Vulnerable Library - system.text.json.6.0.6.nupkg

Provides high-performance and low-allocating types that serialize objects to JavaScript Object Notation (JSON) text and deserialize JSON text to objects, with UTF-8 support built-in.

Library home page: https://api.nuget.org/packages/system.text.json.6.0.6.nupkg

Path to dependency file: /src/Certify.CLI/Certify.CLI.csproj

Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.text.json/6.0.6/system.text.json.6.0.6.nupkg

Dependency Hierarchy:

• microsoft.aspnetcore.signalr.protocols.messagepack.6.0.10.nupkg (Root Library)
  • microsoft.aspnetcore.signalr.common.6.0.10.nupkg
    • ❌ system.text.json.6.0.6.nupkg (Vulnerable Library)

Found in base branch: development

Vulnerability Details

.NET and Visual Studio Denial of Service Vulnerability

Publish Date: 2024-10-08

URL: CVE-2024-43485

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-8g4q-xg66-9fp4

Release Date: 2024-10-08

Fix Resolution: System.Text.Json - 6.0.10,8.0.5

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[mend-bolt-for-github]

✔️ This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-bolt-for-github]

ℹ️ This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.