Microsoft ASP.NET Core Security Feature Bypass Vulnerability
CVE-2020-1045 is fixed in 11 products on 1 platform, first by RHSA-2020:3699, released September 8, 2020. It is not reported as exploited. Patch Radar priority: High.
<p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.</p> <p>The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.</p> <p>The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| aspnetcore-runtime-3.1 · RHEL 8 | 0:3.1.8-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| aspnetcore-runtime-3.1 · ol 8 | 0:3.1.8-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| aspnetcore-targeting-pack-3.1 · RHEL 8 | 0:3.1.8-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| aspnetcore-targeting-pack-3.1 · ol 8 | 0:3.1.8-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| dotnet · RHEL 8 | 0:3.1.108-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| dotnet · ol 8 | 0:3.1.108-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| dotnet-apphost-pack-3.1 · RHEL 8 | 0:3.1.8-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| dotnet-apphost-pack-3.1 · ol 8 | 0:3.1.8-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| dotnet-host · RHEL 8 | 0:3.1.8-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| dotnet-host · ol 8 | 0:3.1.8-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| dotnet-hostfxr-3.1 · RHEL 8 | 0:3.1.8-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| dotnet-hostfxr-3.1 · ol 8 | 0:3.1.8-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| dotnet-runtime-3.1 · RHEL 8 | 0:3.1.8-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| dotnet-runtime-3.1 · ol 8 | 0:3.1.8-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| dotnet-sdk-3.1 · RHEL 8 | 0:3.1.108-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| dotnet-sdk-3.1 · ol 8 | 0:3.1.108-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| dotnet-targeting-pack-3.1 · RHEL 8 | 0:3.1.8-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| dotnet-targeting-pack-3.1 · ol 8 | 0:3.1.8-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| dotnet-templates-3.1 · RHEL 8 | 0:3.1.108-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| dotnet-templates-3.1 · ol 8 | 0:3.1.108-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
| netstandard-targeting-pack-2.1 · RHEL 8 | 0:3.1.108-2.el8_2 | RHSA-2020:3699 | Sep 8, 2020 |
| netstandard-targeting-pack-2.1 · ol 8 | 0:3.1.108-2.0.1.el8_2 | ELSA-2020-3699 | Sep 11, 2020 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.