Описание
.NET Core & .NET Framework Denial of Service Vulnerability
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Core or .NET Framework web application. The vulnerability can be exploited remotely, without authentication.
A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Core or .NET Framework application.
The update addresses the vulnerability by correcting how the .NET Core or .NET Framework web application handles web requests.
FAQ
I am running Windows Server 2008, Windows 7, or Windows Server 2008 R2 and I cannot install the Monthly Rollup or Security Only updates for any of the 4.X versions of Microsoft .NET Framework. How do I protect my system from this vulnerability?
There is a known issue with the Monthly Rollup and Security Only updates for the 4.X versions of .NET Framework installed on Windows Server 2008, Windows 7, and Windows Server 2008 R2. For a workaround to this known issue, please see the Article listed in the Security Updates table for the version of .NET Framework you are trying to install.
Обновления
| Продукт | Статья | Обновление |
|---|---|---|
| .NET Core 2.1 | ||
| Microsoft Visual Studio 2017 version 15.9 (includes 15.0 - 15.8) | ||
| PowerShell Core 6.2 | ||
| Microsoft Visual Studio 2019 version 16.0 | ||
| Microsoft Visual Studio 2019 version 16.4 (includes 16.0 - 16.3) | ||
| .NET Core 3.1 | ||
| PowerShell 7.0 | ||
| Microsoft Visual Studio 2019 version 16.5 | ||
| .NET 5.0 | ||
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1 |
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Возможность эксплуатации
Publicly Disclosed
Exploited
Latest Software Release
Older Software Release
EPSS
Связанные уязвимости
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests, aka '.NET Core & .NET Framework Denial of Service Vulnerability'.
A denial of service vulnerability exists when .NET Core or .NET Framework improperly handles web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against a .NET Core or .NET Framework web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Core or .NET Framework application. The update addresses the vulnerability by correcting how the .NET Core or .NET Framework web application handles web requests.
.NET Core & .NET Framework Denial of Service Vulnerability
ELSA-2020-2471: .NET Core on Red Hat Enterprise Linux 8 security update (IMPORTANT)
ELSA-2020-2450: .NET Core 3.1 on Red Hat Enterprise Linux 8 security update (IMPORTANT)
EPSS