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CVE-2018-8171

HIGH

Security feature bypass vulnerability exists in ASP.NET when the number of incorrect login attempts is not validated

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

Summary

A Security Feature Bypass vulnerability exists in ASP.NET when the number of incorrect login attempts is not validated, aka "ASP.NET Security Feature Bypass Vulnerability." This affects ASP.NET, ASP.NET Core 1.1, ASP.NET Core 1.0, ASP.NET Core 2.0, ASP.NET MVC 5.2.

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update Microsoft.AspNetCore.Identity to 2.1.2 or later
dotnet add package Microsoft.AspNetCore.Identity --version 2.1.2
NuGet
Update Microsoft.AspNetCore.Identity to 2.0.4 or later
dotnet add package Microsoft.AspNetCore.Identity --version 2.0.4
NuGet
Update Microsoft.AspNetCore.Identity to 1.0.6 or later
dotnet add package Microsoft.AspNetCore.Identity --version 1.0.6
NuGet
Update Microsoft.AspNetCore.Identity to 1.1.6 or later
dotnet add package Microsoft.AspNetCore.Identity --version 1.1.6

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

Affected Packages (4)

PackageEcosystemAffectedFixed In
Microsoft.AspNetCore.Identity
nuget
2.1.0, 2.1.12.1.2
Microsoft.AspNetCore.Identity
nuget
2.0.0, 2.0.1, 2.0.2, 2.0.32.0.4
Microsoft.AspNetCore.Identity
nuget
1.0.0, 1.0.1, 1.0.2, 1.0.3 (+2 more)1.0.6
Microsoft.AspNetCore.Identity
nuget
1.1.0, 1.1.1, 1.1.2, 1.1.3 (+2 more)1.1.6

Vulnerability Classification

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

  • CWE-287
    Improper AuthenticationMITRE

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
High
Availability
None

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

References

Frequently Asked Questions

What is CVE-2018-8171?
Security feature bypass vulnerability exists in ASP.NET when the number of incorrect login attempts is not validated 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-2018-8171?
CVE-2018-8171 affects Microsoft.AspNetCore.Identity. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2018-8171 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-vhvh-528q-ff3p

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