{"id":"GHSA-hxrm-9w7p-39cc","summary":"Cookie parsing failure","details":"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'.","aliases":["BIT-aspnet-core-2020-1045","CVE-2020-1045"],"modified":"2024-11-29T05:41:49.773176Z","published":"2022-05-24T17:27:57Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2022-07-07T23:06:40Z","nvd_published_at":"2020-09-11T17:15:00Z","cwe_ids":[]},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1045"},{"type":"WEB","url":"https://github.com/dotnet/announcements/issues/165"},{"type":"WEB","url":"https://github.com/dotnet/aspnetcore/issues/25701"},{"type":"WEB","url":"https://github.com/dotnet/aspnetcore/issues/25701#issuecomment-689434477"},{"type":"WEB","url":"https://github.com/github/advisory-database/issues/302"},{"type":"WEB","url":"https://github.com/dotnet/aspnetcore/pull/24264"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2020:3699"},{"type":"WEB","url":"https://github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3"},{"type":"WEB","url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1045"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-RHEL8-DOTNET-1439600"}],"affected":[{"package":{"name":"Microsoft.AspNetCore.Http","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.Http"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.22"}]}],"versions":["0.0.1-alpha","1.0.0","1.0.0-rc2-final","1.0.1","1.0.2","1.0.3","1.0.4","1.1.0","1.1.0-preview1-final","1.1.1","1.1.2","2.0.0","2.0.0-preview1-final","2.0.0-preview2-final","2.0.1","2.0.2","2.0.3","2.1.0","2.1.0-preview1-final","2.1.0-preview2-final","2.1.0-rc1-final","2.1.1"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.22"}]}],"versions":["2.1.0","2.1.0-preview1-final","2.1.0-preview2-final","2.1.0-rc1-final","2.1.1","2.1.10","2.1.11","2.1.12","2.1.13","2.1.14","2.1.15","2.1.16","2.1.17","2.1.18","2.1.19","2.1.2","2.1.20","2.1.21","2.1.3","2.1.4","2.1.5","2.1.6","2.1.7","2.1.8","2.1.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json","last_known_affected_version_range":"\u003c= 2.1.21"}},{"package":{"name":"Microsoft.Owin","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.Owin"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.1"}]}],"versions":["1.1.0-beta1","1.1.0-beta2","2.0.0","2.0.0-rc1","2.0.1","2.0.2","2.1.0","2.1.0-rc1","3.0.0","3.0.0-alpha1","3.0.0-beta1","3.0.0-rc1","3.0.0-rc2","3.0.1","3.1.0","3.1.0-rc1","4.0.0","4.0.0-alpha1","4.0.0-preview1","4.0.1","4.1.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.linux-arm","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.linux-arm64","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-arm64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.linux-musl-x64","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-x64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.linux-x64","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-x64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.osx-x64","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.osx-x64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.win-arm","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-arm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.win-x64","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.win-x86","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.win-x86"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.linux-musl-arm64","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.AspNetCore.App.Runtime.linux-musl-arm64"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.1.0"},{"fixed":"3.1.8"}]}],"versions":["3.1.0","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-hxrm-9w7p-39cc/GHSA-hxrm-9w7p-39cc.json"}},{"package":{"name":"Microsoft.AspNetCore.App.Runtime.win-arm64","ecosystem":"NuGet","purl":"pkg:nuget/Microsoft.A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