Skip to content
fr Sign in
7.5 High

CVE-2020-1045 A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names. The…

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 and versions

Product Affected versions Fixed in
ASP.NET Core 2.1 2.0 2.0 → latest No fix stated
ASP.NET Core 3.1 3.0 3.0 → latest No fix stated

References

Timeline

  1. Published
  2. Last modified

Other CVEs of ASP.NET Core 2.1

The 5 CVEs of ASP.NET Core 2.1 →
CVE-2023-38180 Microsoft .NET Core and Visual Studio Denial-of-Service Vulnerability 7.5 High CVE-2023-35391 ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability 6.2 Medium CVE-2021-34532 ASP.NET Core and Visual Studio Information Disclosure Vulnerability 5.5 Medium CVE-2020-1597 A denial of service vulnerability exists when ASP.NET Core improperly handles web requests Not rated
Track this CVE