Vulnerabilities in pkg:nuget/Microsoft.AspNetCore.Server.HttpSys
PACKAGECVE-2017-11883 is a HIGH (CVSS 7.5) denial of service vulnerability (General Security Weakness) affecting Microsoft.AspNetCore.Server.WebListener libraries in the NuGet ecosystem. The issue involves denial of service in asp.net core. Remediation is available by upgrading affected packages to version 1.0.6, 1.1.4, 2.0.2.
pkg:nuget/Microsoft.AspNetCore.Server.HttpSys
Vulnerability advisories affecting package pkg:nuget/Microsoft.AspNetCore.Server.HttpSys. Select an advisory below to view technical details or fixes.
| Advisory ID | CVE / NVD | Severity | Summary |
|---|---|---|---|
| GHSA-f9jc-rrm2-pmfg | CVE-2017-11883 | HIGH | Denial of service in ASP.NET Core |
| GHSA-prrf-397v-83xh | CVE-2019-1075 | MODERATE | Open redirect in ASP.NET Core |
CVE-2017-11883 at a Glance
Security Impact
CVSS: 7.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
How to Fix CVE-2017-11883
To remediate this vulnerability, upgrade all affected Microsoft.AspNetCore.Server.WebListener dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade Microsoft.AspNetCore.Server.WebListener to 1.0.6Upgrade Microsoft.AspNetCore.Server.WebListener to 1.1.4Upgrade Microsoft.Net.Http.Server to 1.0.6Upgrade Microsoft.Net.Http.Server to 1.1.4Upgrade Microsoft.AspNetCore.Server.HttpSys to 2.0.2Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for Microsoft.AspNetCore.Server.WebListenerHow to Check if You Are Affected
To determine whether your application is affected by CVE-2017-11883, inspect your project dependencies for Microsoft.AspNetCore.Server.WebListener:
inspect dependencies for Microsoft.AspNetCore.Server.WebListenerAnalyze the terminal output to locate any version of Microsoft.AspNetCore.Server.WebListener in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.6), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under General Security Weakness. In Microsoft.AspNetCore.Server.WebListener, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2017-11883 Affected Microsoft.AspNetCore.Server.WebListener Versions
5 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
Microsoft.AspNetCore.Server.WebListener
|
NuGet |
≥ 1.0.0
< 1.0.6
|
1.0.6
|
|
Microsoft.AspNetCore.Server.WebListener
|
NuGet |
≥ 1.1.0
< 1.1.4
|
1.1.4
|
|
Microsoft.Net.Http.Server
|
NuGet |
≥ 1.0.0
< 1.0.6
|
1.0.6
|
|
Microsoft.Net.Http.Server
|
NuGet |
≥ 1.1.0
< 1.1.4
|
1.1.4
|
|
Microsoft.AspNetCore.Server.HttpSys
|
NuGet |
≥ 2.0.0
< 2.0.2
|
2.0.2
|
References
Frequently Asked Questions
What is CVE-2017-11883?
Which Microsoft.AspNetCore.Server.WebListener versions are affected?
What version fixes CVE-2017-11883?
Is Microsoft.AspNetCore.Server.WebListener affected?
Is Microsoft.Net.Http.Server affected?
What is the CVSS score of CVE-2017-11883?
What CWE is associated with CVE-2017-11883?
How can I check NuGet dependencies for CVE-2017-11883?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-f9jc-rrm2-pmfg",
"modified" : "2022-07-08T19:22:20Z",
"published" : "2022-05-13T01:42:35Z",
"aliases" : [ "CVE-2017-11883" ],
"summary" : "Denial of service in ASP.NET Core",
"details" : ".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\".",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.AspNetCore.Server.WebListener"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.0.0"
}, {
"fixed" : "1.0.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.AspNetCore.Server.WebListener"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.1.0"
}, {
"fixed" : "1.1.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.Net.Http.Server"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.0.0"
}, {
"fixed" : "1.0.6"
} ]
} ]
}, {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.Net.Http.Server"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.1.0"
}, {
"fixed" : "1.1.4"
} ]
} ]
}, {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.AspNetCore.Server.HttpSys"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.0.0"
}, {
"fixed" : "2.0.2"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-11883"
}, {
"type" : "WEB",
"url" : "https://github.com/aspnet/Announcements/issues/278"
}, {
"type" : "WEB",
"url" : "https://github.com/github/advisory-database/issues/302"
}, {
"type" : "WEB",
"url" : "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11883"
} ],
"database_specific" : {
"cwe_ids" : [ ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2022-07-08T19:22:20Z",
"nvd_published_at" : "2017-11-15T03:29:00Z"
}
}