CVE-2017-0248
First published: Fri May 12 2017(Updated: )
Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass Vulnerability."
Credit: secure@microsoft.com secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft .NET Framework | =2.0-sp2 | |
| Microsoft .NET Framework | =3.5 | |
| Microsoft .NET Framework | =3.5.1 | |
| Microsoft .NET Framework | =4.5.2 | |
| Microsoft .NET Framework | =4.6 | |
| Microsoft .NET Framework | =4.6.1 | |
| Microsoft .NET Framework | =4.6.2 | |
| Microsoft .NET Framework | =4.7 | |
| nuget/Microsoft.AspNetCore.Mvc.WebApiCompatShim | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.WebApiCompatShim | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.ViewFeatures | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.ViewFeatures | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.TagHelpers | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.TagHelpers | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.Razor | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.Razor | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.Razor.Host | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.Razor.Host | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.Localization | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.Localization | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.Formatters.Xml | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.Formatters.Xml | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.Formatters.Json | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.Formatters.Json | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.DataAnnotations | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.DataAnnotations | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.Cors | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.Cors | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.ApiExplorer | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.ApiExplorer | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc.Abstractions | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.Abstractions | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/System.Net.WebSockets.Client | =4.3.0 | 4.3.1 |
| nuget/System.Net.WebSockets.Client | =4.0.0 | 4.0.1 |
| nuget/System.Net.Security | =4.3.0 | 4.3.1 |
| nuget/System.Net.Security | =4.0.0 | 4.0.1 |
| nuget/System.Net.Http.WinHttpHandler | =4.3.0 | 4.3.1 |
| nuget/System.Net.Http.WinHttpHandler | =4.0.0 | 4.0.1 |
| nuget/System.Text.Encodings.Web | =4.3.0 | 4.3.1 |
| nuget/System.Text.Encodings.Web | =4.0.0 | 4.0.1 |
| nuget/System.Net.Http | =4.3.1 | 4.3.2 |
| nuget/System.Net.Http | =4.1.1 | 4.1.2 |
| nuget/Microsoft.AspNetCore.Mvc.Core | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc.Core | >=1.0.0<1.0.4 | 1.0.4 |
| nuget/Microsoft.AspNetCore.Mvc | >=1.1.0<1.1.3 | 1.1.3 |
| nuget/Microsoft.AspNetCore.Mvc | >=1.0.0<1.0.4 | 1.0.4 |
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Reference Links
- http://www.securityfocus.com/bid/98117
- http://www.securitytracker.com/id/1038458
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0248
- https://nvd.nist.gov/vuln/detail/CVE-2017-0248
- https://github.com/advisories/GHSA-ch6p-4jcm-h8vh (Advisory)
- https://github.com/aspnet/Announcements/issues/239
Frequently Asked Questions
What is the severity of CVE-2017-0248?
CVE-2017-0248 is rated as critical due to its potential to allow attackers to bypass security features.
How do I fix CVE-2017-0248?
To mitigate CVE-2017-0248, update your Microsoft .NET Framework to a version that is not vulnerable, such as 4.7 or later.
What versions of Microsoft .NET Framework are affected by CVE-2017-0248?
CVE-2017-0248 affects Microsoft .NET Framework versions 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, and 4.7.
Can CVE-2017-0248 affect applications using .NET Framework?
Yes, applications relying on the affected versions of the .NET Framework are vulnerable to CVE-2017-0248.
Is there a workaround for CVE-2017-0248 if I cannot immediately update?
While updating is the best solution, temporarily strengthening certificate validation might help mitigate the risk until a full update can be applied.
- agent/type
- agent/remedy
- agent/severity
- agent/weakness
- agent/references
- agent/softwarecombine
- agent/description
- agent/author
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-ch6p-4jcm-h8vh
- alias/CVE-2017-0248
- agent/software-canonical-lookup
- collector/github-advisory
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/trending
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-cve
- source/NVD
- package-manager/nuget
- vendor/microsoft
- canonical/microsoft .net framework
- version/microsoft .net framework/2.0-sp2
- version/microsoft .net framework/3.5
- version/microsoft .net framework/3.5.1
- version/microsoft .net framework/4.5.2
- version/microsoft .net framework/4.6
- version/microsoft .net framework/4.6.1
- version/microsoft .net framework/4.6.2
- version/microsoft .net framework/4.7