{"answers":{"affected":"4 open source packages ship an affected version, including Microsoft.NETCore.App. It affects 2 products.","exploited":"There is no known exploitation of CVE-2019-0545 in the wild and no public exploit code.","fix":"Upgrade Microsoft.NETCore.App to a fixed version for your release line: 2.1.7 or 2.2.1.","what":"CVE-2019-0545 is a high-severity vulnerability in Microsoft .Net Framework, published on 8 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-0545 and fix it if it is affected.\n\nWhat it is: CVE-2019-0545 is a high-severity vulnerability in Microsoft .Net Framework, published on 8 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-0545 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Microsoft.NETCore.App (NuGet): affected from 2.1.0; fixed in 2.1.7\n- Microsoft.NETCore.App (NuGet): affected from 2.1.0; fixed in 2.1.7\n- Microsoft.NETCore.App (NuGet): affected from 2.2.0; fixed in 2.2.1\n- Microsoft.NETCore.App (NuGet): affected from 2.2.0; fixed in 2.2.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2019-0545/ (Markdown: https://insights.sbomify.com/CVE-2019-0545/index.md)","id":"CVE-2019-0545","markdown":"https://insights.sbomify.com/CVE-2019-0545/index.md","name":"CVE-2019-0545","record":{"aliases":["GHSA-2xjx-v99w-gqf3"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":".NET Framework","requires_auth":"none","summary":"An information disclosure vulnerability in .NET Framework and Core allows bypassing CORS configurations, potentially exposing sensitive data to unauthorized origins.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":".net_core","vendor":"microsoft"},{"product":".net_framework","vendor":"microsoft"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.0"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"An information disclosure vulnerability exists in .NET Framework and .NET Core which allows bypassing Cross-origin Resource Sharing (CORS) configurations, aka \".NET Framework Information Disclosure Vulnerability.\" This affects Microsoft .NET Framework 2.0, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.7/4.7.1/4.7.2, .NET Core 2.1, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 2.2, Microsoft .NET Framework 4.7.2.","ecosystems":["NuGet"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Exposure of Sensitive Information in System.Net.Http","id":"CVE-2019-0545","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":"microsoft:.net_framework","products":["microsoft:.net_framework"],"type":"information_disclosure","year":"2019"},"n_packages":4,"n_references":3,"next":{"headline":"Code injection in Microsoft Visual Studio","id":"CVE-2019-0546"},"packages":[{"ecosystem":"NuGet","fixed":["2.1.7"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App","purl":null,"source":"GHSA-2xjx-v99w-gqf3"},{"ecosystem":"NuGet","fixed":["2.1.7"],"introduced":["2.1.0"],"last_affected":[],"package":"Microsoft.NETCore.App","purl":"pkg:nuget/Microsoft.NETCore.App","source":"GHSA-2xjx-v99w-gqf3"},{"ecosystem":"NuGet","fixed":["2.2.1"],"introduced":["2.2.0"],"last_affected":[],"package":"Microsoft.NETCore.App","purl":null,"source":"GHSA-2xjx-v99w-gqf3"},{"ecosystem":"NuGet","fixed":["2.2.1"],"introduced":["2.2.0"],"last_affected":[],"package":"Microsoft.NETCore.App","purl":"pkg:nuget/Microsoft.NETCore.App","source":"GHSA-2xjx-v99w-gqf3"}],"prev":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2019-0544"},"products":[".NET Core","Microsoft .NET Framework"],"published":"2019-01-08","related":[{"cvss_score":7.8,"headline":"Microsoft .NET Framework, SharePoint, and Visual Studio Remote Code Execution","id":"CVE-2020-1147","kev_date_added":"2021-11-03","published":"2020-07-14"},{"cvss_score":8.8,"headline":"Code injection in .NET Core","id":"CVE-2020-0605","kev_date_added":null,"published":"2020-01-14"},{"cvss_score":8.8,"headline":"Remote code execution in Microsoft.WindowsDesktop.App.Ref","id":"CVE-2020-0606","kev_date_added":null,"published":"2020-01-14"},{"cvss_score":7.5,"headline":"High severity vulnerability that affects System.Management.Automation","id":"CVE-2019-1301","kev_date_added":null,"published":"2019-09-11"},{"cvss_score":7.5,"headline":"Regular Expression Denial of Service in System.Text.RegularExpressions","id":"CVE-2019-0820","kev_date_added":null,"published":"2019-05-16"},{"cvss_score":7.5,"headline":"Denial of service in ASP.NET Core","id":"CVE-2019-0980","kev_date_added":null,"published":"2019-05-16"},{"cvss_score":7.5,"headline":"Denial of service in ASP.NET Core","id":"CVE-2019-0981","kev_date_added":null,"published":"2019-05-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Microsoft"]},"summary":"An information disclosure vulnerability in .NET Framework and Core allows bypassing CORS configurations, potentially exposing sensitive data to unauthorized origins.","url":"https://insights.sbomify.com/CVE-2019-0545/"}