Описание
.NET Security Feature Bypass Vulnerability
A security feature bypass vulnerability exists when Microsoft .NET Framework (and .NET Core) components do not completely validate certificates.
An attacker could present a certificate that is marked invalid for a specific use, but the component uses it for that purpose. This action disregards the Enhanced Key Usage taggings.
The security update addresses the vulnerability by helping to ensure that .NET Framework (and .NET Core) components completely validate certificates.
FAQ
How do I determine which version of Microsoft .NET Framework is installed on my system? You can install and run multiple versions of .NET Framework on a system, and you can install the versions in any order. For more information, see Microsoft Knowledge Base Article 318785.
How do I locate the updates for the versions of .NET Framework installed on my system? The download links in the Affected Products table are to the Parent KB number in the Microsoft Update Catalog. To locate the packages you need to download, in the Microsoft Update Catalog, click Download for the platform you have installed on your system. In the Download window, click to download each update that is applicable to your system.
Customers who have updates automatically installed will be offered the Parent KB; however, the package KB numbers listed for each platform will be displayed in Add Remove Programs.
The following table lists the Parent KB numbers for the Monthly Rollup Releases and the Security Only Releases, and the package KB numbers they contain. For more information about Microsoft's update servicing model for Microsoft .NET Framework, see this Microsoft .NET Blog Post.
| Monthly Rollup Release | Security Only Release | |||
|---|---|---|---|---|
| Platform | Parent KB | Child KBs | Parent KB | Child KBs |
| Windows Server 2008 | 4019115 | 4014502 - .NET Framework 2.0 | 4019109 | 4014575 - .NET Framework 2.0 |
| 4014514 - .NET Framework 4.5.2 | 4014599 - .NET Framework 4.5.2 | |||
| 4014511 - .NET Framework 4.6 | 4014591- .NET Framework 4.6 | |||
| Windows 7 | 4019112 | 4014504 - .NET Framework 3.5.1 | 4019108 | 4014579 - .NET Framework 3.5.1 |
| Windows Server 2008 R2 | 4014514 - .NET Framework 4.5.2 | 4014599 - .NET Framework 4.5.2 | ||
| 4014511 - .NET Framework 4.6/4.6.1 | 4014591 - .NET Framework 4.6/4.6.1 | |||
| 4014508 - .NET Framework 4.6.2 | 4014588 - .NET Framework 4.6.2 | |||
| Windows Server 2012 | 4019113 | 4014503 - .NET Framework 3.5 | 4019110 | 4014577 - .NET Framework 3.5 |
| 4014513 - .NET Framework 4.5.2 | 4014597 - .NET Framework 4.5.2 | |||
| 4014509 - .NET Framework 4.6/4.6.1 | 4014589 - .NET Framework 4.6/4.6.1 | |||
| 4014506 - .NET Framework 4.6.2 | 4014586 - .NET Framework 4.6.2 | |||
| Windows 8.1 | 4019114 | 4014505 - .NET Framework 3.5 | 4019111 | 4014581 - .NET Framework 3.5 |
| Windows Server 2012 R2 | 4014512 - .NET Framework 4.5.2 | 4014595 - .NET Framework 4.5.2 | ||
| 4014510 - .NET Framework 4.6/4.6.1 | 4014590 - .NET Framework 4.6/4.6.1 | |||
| 4014507 - .NET Framework 4.6.2 | 4014587 - .NET Framework 4.6.2 | |||
| Windows 10 Platforms | Parent KB | .NET Framework Product | ||
| Windows 10 | 4019474 | .NET Framework 3.5 | None | |
| .NET Framework 4.6 | ||||
| Windows 10 Version 1511 | 4019473 | .NET Framework 3.5 | None | |
| .NET Framework 4.6.1 | ||||
| Windows 10 Version 1607 | 4019472 | .NET Framework 3.5 | None | |
| .NET Framework 4.6.2 | ||||
| Windows Server 2016 | 4019472 | .NET Framework 3.5 | None | |
| .NET Framework 4.6.2 | ||||
| Windows 10 Version 1703 | 4019471 | .NET Framework 4.7 | None |
Обновления
| Продукт | Статья | Обновление |
|---|---|---|
| Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 | ||
| Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | ||
| Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 | ||
| Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) | ||
| Microsoft .NET Framework 3.5 on Windows Server 2012 | ||
| Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 | ||
| Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | ||
| Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | ||
| Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | ||
| Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 |
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Возможность эксплуатации
Publicly Disclosed
Exploited
Latest Software Release
Older Software Release
DOS
EPSS
Связанные уязвимости
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."
Moderate severity vulnerability that affects Microsoft.AspNetCore.Mvc and Microsoft.AspNetCore.Mvc.Core
EPSS