GoogleOSV:BIT-ASPNET-CORE-2020-1045BIT-aspnet-core-2020-1045
0.002 Low
EPSS
Percentile
64.3%
<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>
| CPE | Name | Operator | Version |
|---|---|---|---|
| aspnet-core | lt | 3.1.8 | |
| aspnet-core | lt | 2.1.21 | |
| aspnet-core | ge | 3.1.0 | |
| aspnet-core | ge | 2.1.0 |
References
access.redhat.com/errata/RHSA-2020:3699
github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/
portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1045
security.snyk.io/vuln/SNYK-RHEL8-DOTNET-1439600
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