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CVE-2017-11883 — Denial of service in Microsoft.Net.Http.Server —...

HIGH

Denial of service in ASP.NET Core

Published May 13, 2022Updated December 5, 2024Source: osv

Summary

.NET Core 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly handling web requests, aka ".NET CORE Denial Of Service Vulnerability".

Advisory Timeline

  • First published May 13, 2022 (1613 days ago).
  • Last revised December 5, 2024 — 937 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update Microsoft.Net.Http.Server to 1.0.6 or later
dotnet add package Microsoft.Net.Http.Server --version 1.0.6
NuGet
Update Microsoft.Net.Http.Server to 1.1.4 or later
dotnet add package Microsoft.Net.Http.Server --version 1.1.4
NuGet
Update Microsoft.AspNetCore.Server.HttpSys to 2.0.2 or later
dotnet add package Microsoft.AspNetCore.Server.HttpSys --version 2.0.2
NuGet
Update Microsoft.AspNetCore.Server.WebListener to 1.0.6 or later
dotnet add package Microsoft.AspNetCore.Server.WebListener --version 1.0.6
NuGet
Update Microsoft.AspNetCore.Server.WebListener to 1.1.4 or later
dotnet add package Microsoft.AspNetCore.Server.WebListener --version 1.1.4

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

Affected Packages (5)

Affects 1 ecosystem: nuget (3).

PackageEcosystemAffectedFixed In
Microsoft.Net.Http.Server
nuget
1.0.0, 1.0.1, 1.0.2, 1.0.3 (+2 more)1.0.6
Microsoft.Net.Http.Server
nuget
1.1.0, 1.1.1, 1.1.2, 1.1.31.1.4
Microsoft.AspNetCore.Server.HttpSys
nuget
2.0.0, 2.0.12.0.2
Microsoft.AspNetCore.Server.WebListener
nuget
1.0.0, 1.0.1, 1.0.2, 1.0.3 (+2 more)1.0.6
Microsoft.AspNetCore.Server.WebListener
nuget
1.1.0, 1.1.1, 1.1.2, 1.1.31.1.4

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

References

Frequently Asked Questions

What is CVE-2017-11883?
Denial of service in ASP.NET Core This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by CVE-2017-11883?
CVE-2017-11883 affects Microsoft.Net.Http.Server, Microsoft.AspNetCore.Server.HttpSys and Microsoft.AspNetCore.Server.WebListener. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2017-11883 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-f9jc-rrm2-pmfg

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