CVE-2018-8171: Microsoft.AspNetCore.Identity Security Feature Bypass Vulnerability Exists Vulnerability
HIGHCVE-2018-8171 is a HIGH (CVSS 7.5) security feature bypass vulnerability exists vulnerability (CWE-287: Improper Authentication) affecting Microsoft.AspNetCore.Identity libraries in the NuGet ecosystem. The issue involves security feature bypass vulnerability exists in asp.net when the number of incorrect login attempts is not validated. Remediation is available by upgrading affected packages to version 1.0.6, 1.1.6, 2.0.4, 2.1.2.
CVE-2018-8171 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:H/A:N).
How to Fix CVE-2018-8171
To remediate this vulnerability, upgrade all affected Microsoft.AspNetCore.Identity 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.Identity to 1.0.6Upgrade Microsoft.AspNetCore.Identity to 1.1.6Upgrade Microsoft.AspNetCore.Identity to 2.0.4Upgrade Microsoft.AspNetCore.Identity to 2.1.2Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for Microsoft.AspNetCore.IdentityHow to Check if You Are Affected
To determine whether your application is affected by CVE-2018-8171, inspect your project dependencies for Microsoft.AspNetCore.Identity:
inspect dependencies for Microsoft.AspNetCore.IdentityAnalyze the terminal output to locate any version of Microsoft.AspNetCore.Identity 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 CWE-287: Improper Authentication, where when an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. In Microsoft.AspNetCore.Identity, 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-2018-8171 Affected Microsoft.AspNetCore.Identity Versions
4 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
Microsoft.AspNetCore.Identity
|
NuGet |
≥ 1.0.0
< 1.0.6
|
1.0.6
|
|
Microsoft.AspNetCore.Identity
|
NuGet |
≥ 1.1.0
< 1.1.6
|
1.1.6
|
|
Microsoft.AspNetCore.Identity
|
NuGet |
≥ 2.0.0
< 2.0.4
|
2.0.4
|
|
Microsoft.AspNetCore.Identity
|
NuGet |
≥ 2.1.0
< 2.1.2
|
2.1.2
|
References
Frequently Asked Questions
What is CVE-2018-8171?
Which Microsoft.AspNetCore.Identity versions are affected?
What version fixes CVE-2018-8171?
Is Microsoft.AspNetCore.Identity affected?
What is the CVSS score of CVE-2018-8171?
What CWE is associated with CVE-2018-8171?
How can I check NuGet dependencies for CVE-2018-8171?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-vhvh-528q-ff3p",
"modified" : "2022-04-26T19:05:55Z",
"published" : "2018-10-16T19:56:50Z",
"aliases" : [ "CVE-2018-8171" ],
"summary" : "Security feature bypass vulnerability exists in ASP.NET when the number of incorrect login attempts is not validated",
"details" : "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.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.AspNetCore.Identity"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.0.0"
}, {
"fixed" : "1.0.6"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 1.0.5"
}
}, {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.AspNetCore.Identity"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.1.0"
}, {
"fixed" : "1.1.6"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 1.1.5"
}
}, {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.AspNetCore.Identity"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.0.0"
}, {
"fixed" : "2.0.4"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 2.0.3"
}
}, {
"package" : {
"ecosystem" : "NuGet",
"name" : "Microsoft.AspNetCore.Identity"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.1.0"
}, {
"fixed" : "2.1.2"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 2.1.1"
}
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-8171"
}, {
"type" : "ADVISORY",
"url" : "https://github.com/advisories/GHSA-vhvh-528q-ff3p"
}, {
"type" : "WEB",
"url" : "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8171"
}, {
"type" : "WEB",
"url" : "http://www.securityfocus.com/bid/104659"
}, {
"type" : "WEB",
"url" : "http://www.securitytracker.com/id/1041267"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-287" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2020-06-16T21:57:50Z",
"nvd_published_at" : "2018-07-11T00:29:00Z"
}
}