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CVE-2018-0787

HIGH

ASP.NET Core allow an elevation of privilege

Published October 16, 2018Updated November 8, 2023Source: osv

Summary

ASP.NET Core 1.0. 1.1, and 2.0 allow an elevation of privilege vulnerability due to how web applications that are created from templates validate web requests, aka "ASP.NET Core Elevation Of Privilege Vulnerability".

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update Microsoft.AspNetCore.Server.Kestrel.Core to 2.0.2 or later
dotnet add package Microsoft.AspNetCore.Server.Kestrel.Core --version 2.0.2
NuGet
Update Microsoft.AspNetCore.HttpOverrides to 2.0.2 or later
dotnet add package Microsoft.AspNetCore.HttpOverrides --version 2.0.2

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

Affected Packages (2)

PackageEcosystemAffectedFixed In
Microsoft.AspNetCore.Server.Kestrel.Core
nuget
2.0.0, 2.0.12.0.2
Microsoft.AspNetCore.HttpOverrides
nuget
2.0.0, 2.0.12.0.2

Vulnerability Classification

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

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 8.8 score means for each attack dimension.

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

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

References

Frequently Asked Questions

What is CVE-2018-0787?
ASP.NET Core allow an elevation of privilege This vulnerability has been assigned a severity rating of HIGH (CVSS score: 8.8/10).
How do I check if my project is affected by CVE-2018-0787?
CVE-2018-0787 affects Microsoft.AspNetCore.Server.Kestrel.Core and Microsoft.AspNetCore.HttpOverrides. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2018-0787 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
8.8

High exploitability or significant impact. Prioritize remediation within days.

Also Known As

GHSA-365p-96qv-xr7g

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