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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2020-1045

Microsoft ASP.NET Core Security Feature Bypass Vulnerability

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
microsoft

Description

<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>

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Microsoft ASP.NET Core 2.1

  • 2.0 to < publicationaffected

Microsoft ASP.NET Core 3.1

  • 3.0 to < publicationaffected

References