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Denial of service in ASP.NET Core

High severity GitHub Reviewed Published May 13, 2022 to the GitHub Advisory Database • Updated Jan 27, 2023

Package

nuget Microsoft.AspNetCore.Server.HttpSys (NuGet)

Affected versions

>= 2.0.0, < 2.0.2

Patched versions

2.0.2
nuget Microsoft.AspNetCore.Server.WebListener (NuGet)
>= 1.0.0, < 1.0.6
>= 1.1.0, < 1.1.4
1.0.6
1.1.4
nuget Microsoft.Net.Http.Server (NuGet)
>= 1.0.0, < 1.0.6
>= 1.1.0, < 1.1.4
1.0.6
1.1.4

Description

.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".

References

Published by the National Vulnerability Database Nov 15, 2017
Published to the GitHub Advisory Database May 13, 2022
Reviewed Jul 8, 2022
Last updated Jan 27, 2023

Severity

High
7.5
/ 10

CVSS base metrics

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

Weaknesses

No CWEs

CVE ID

CVE-2017-11883

GHSA ID

GHSA-f9jc-rrm2-pmfg

Source code

No known source code
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