Reliance on Untrusted Inputs in a Security Decision Affecting dotnet package, versions <0:3.1.108-2.el8_2



    Attack Complexity Low
    Integrity High

    Threat Intelligence

    EPSS 0.17% (53rd percentile)
Expand this section
7.5 high
Expand this section
Red Hat
7.5 high

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  • Snyk ID SNYK-RHEL8-DOTNET-1439600
  • published 26 Jul 2021
  • disclosed 1 Jul 2020

How to fix?

Upgrade RHEL:8 dotnet to version 0:3.1.108-2.el8_2 or higher.
This issue was patched in RHSA-2020:3699.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dotnet package and not the dotnet package as distributed by RHEL:8. See How to fix? for RHEL:8 relevant fixed versions and status.

A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.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.The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names., aka 'Microsoft ASP.NET Core Security Feature Bypass Vulnerability'.