{"answers":{"affected":"40 open source packages ship an affected version, including System.ServiceModel.NetTcp, System.Private.ServiceModel and System.ServiceModel.Duplex. It affects 5 products.","exploited":"There is no known exploitation of CVE-2018-8356 in the wild and no public exploit code.","fix":"Upgrade System.ServiceModel.NetTcp to a fixed version for your release line: 4.1.3, 4.3.3, 4.4.4 or 4.5.3.","what":"CVE-2018-8356 is a medium-severity vulnerability in Microsoft .Net Framework, published on 11 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-8356 and fix it if it is affected.\n\nWhat it is: CVE-2018-8356 is a medium-severity vulnerability in Microsoft .Net Framework, published on 11 Jul 2018. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-8356 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- System.ServiceModel.NetTcp (NuGet): affected from 4.0.0; fixed in 4.1.3\n- System.ServiceModel.NetTcp (NuGet): affected from 4.0.0; fixed in 4.1.3\n- System.ServiceModel.NetTcp (NuGet): affected from 4.3.0; fixed in 4.3.3\n- System.ServiceModel.NetTcp (NuGet): affected from 4.3.0; fixed in 4.3.3\n- System.ServiceModel.NetTcp (NuGet): affected from 4.4.0; fixed in 4.4.4\n- System.ServiceModel.NetTcp (NuGet): affected from 4.4.0; fixed in 4.4.4\n- System.ServiceModel.NetTcp (NuGet): affected from 4.5.0; fixed in 4.5.3\n- System.ServiceModel.NetTcp (NuGet): affected from 4.5.0; fixed in 4.5.3\n- System.Private.ServiceModel (NuGet): affected from 4.0.0; fixed in 4.1.3\n- System.Private.ServiceModel (NuGet): affected from 4.0.0; fixed in 4.1.3\n- System.Private.ServiceModel (NuGet): affected from 4.3.0; fixed in 4.3.3\n- System.Private.ServiceModel (NuGet): affected from 4.3.0; fixed in 4.3.3\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-2018-8356/ (Markdown: https://insights.sbomify.com/CVE-2018-8356/index.md)","id":"CVE-2018-8356","markdown":"https://insights.sbomify.com/CVE-2018-8356/index.md","name":"CVE-2018-8356","record":{"aliases":["GHSA-p9wx-v264-q34p"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Microsoft .NET Framework","requires_auth":"low_privilege","summary":"Attackers can bypass certificate validation in Microsoft .NET Framework components, potentially undermining secure communications.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":".net_core","vendor":"microsoft"},{"product":".net_framework","vendor":"microsoft"},{"product":".net_framework_developer_pack","vendor":"microsoft"},{"product":"asp.net_core","vendor":"microsoft"},{"product":"powershell_core","vendor":"microsoft"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"A security feature bypass vulnerability exists when Microsoft .NET Framework components do not correctly validate certificates, aka \".NET Framework Security Feature Bypass Vulnerability.\" This affects .NET Framework 4.7.2, Microsoft .NET Framework 3.0, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, ASP.NET Core 1.1, Microsoft .NET Framework 4.5.2, ASP.NET Core 2.0, ASP.NET Core 1.0, .NET Core 1.1, Microsoft .NET Framework 3.5, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6/4.6.1/4.6.2, .NET Core 1.0, .NET Core 2.0, Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, 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":"Improper Certificate Validation in Microsoft .NET Framework components","id":"CVE-2018-8356","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":"microsoft:.net_framework","products":["microsoft:.net_framework"],"type":"security_feature_bypass","year":"2018"},"n_packages":48,"n_references":3,"next":{"headline":"Privilege escalation in Internet Explorer 11","id":"CVE-2018-8357"},"packages":[{"ecosystem":"NuGet","fixed":["4.1.3"],"introduced":["4.0.0"],"last_affected":[],"package":"System.Private.ServiceModel","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.1.3"],"introduced":["4.0.0"],"last_affected":[],"package":"System.Private.ServiceModel","purl":"pkg:nuget/System.Private.ServiceModel","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.Private.ServiceModel","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.Private.ServiceModel","purl":"pkg:nuget/System.Private.ServiceModel","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.Private.ServiceModel","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.Private.ServiceModel","purl":"pkg:nuget/System.Private.ServiceModel","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.Private.ServiceModel","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.Private.ServiceModel","purl":"pkg:nuget/System.Private.ServiceModel","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.0.4"],"introduced":["4.0.0"],"last_affected":[],"package":"System.ServiceModel.Duplex","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.0.4"],"introduced":["4.0.0"],"last_affected":[],"package":"System.ServiceModel.Duplex","purl":"pkg:nuget/System.ServiceModel.Duplex","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.ServiceModel.Duplex","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.ServiceModel.Duplex","purl":"pkg:nuget/System.ServiceModel.Duplex","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.ServiceModel.Duplex","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.ServiceModel.Duplex","purl":"pkg:nuget/System.ServiceModel.Duplex","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.ServiceModel.Duplex","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.ServiceModel.Duplex","purl":"pkg:nuget/System.ServiceModel.Duplex","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.1.3"],"introduced":["4.0.0"],"last_affected":[],"package":"System.ServiceModel.Http","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.1.3"],"introduced":["4.0.0"],"last_affected":[],"package":"System.ServiceModel.Http","purl":"pkg:nuget/System.ServiceModel.Http","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.ServiceModel.Http","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.ServiceModel.Http","purl":"pkg:nuget/System.ServiceModel.Http","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.ServiceModel.Http","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.ServiceModel.Http","purl":"pkg:nuget/System.ServiceModel.Http","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.ServiceModel.Http","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.ServiceModel.Http","purl":"pkg:nuget/System.ServiceModel.Http","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.1.3"],"introduced":["4.0.0"],"last_affected":[],"package":"System.ServiceModel.NetTcp","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.1.3"],"introduced":["4.0.0"],"last_affected":[],"package":"System.ServiceModel.NetTcp","purl":"pkg:nuget/System.ServiceModel.NetTcp","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.ServiceModel.NetTcp","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.ServiceModel.NetTcp","purl":"pkg:nuget/System.ServiceModel.NetTcp","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.ServiceModel.NetTcp","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.ServiceModel.NetTcp","purl":"pkg:nuget/System.ServiceModel.NetTcp","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.ServiceModel.NetTcp","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.ServiceModel.NetTcp","purl":"pkg:nuget/System.ServiceModel.NetTcp","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.1.3"],"introduced":["4.0.0"],"last_affected":[],"package":"System.ServiceModel.Primitives","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.1.3"],"introduced":["4.0.0"],"last_affected":[],"package":"System.ServiceModel.Primitives","purl":"pkg:nuget/System.ServiceModel.Primitives","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.ServiceModel.Primitives","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.3.3"],"introduced":["4.3.0"],"last_affected":[],"package":"System.ServiceModel.Primitives","purl":"pkg:nuget/System.ServiceModel.Primitives","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.ServiceModel.Primitives","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.4.4"],"introduced":["4.4.0"],"last_affected":[],"package":"System.ServiceModel.Primitives","purl":"pkg:nuget/System.ServiceModel.Primitives","source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.ServiceModel.Primitives","purl":null,"source":"GHSA-p9wx-v264-q34p"},{"ecosystem":"NuGet","fixed":["4.5.3"],"introduced":["4.5.0"],"last_affected":[],"package":"System.ServiceModel.Primitives","purl":"pkg:nuget/System.ServiceModel.Primitives","source":"GHSA-p9wx-v264-q34p"}],"prev":{"headline":"ChakraCore RCE Vulnerability","id":"CVE-2018-8355"},"products":[".NET Core",".NET Framework","ASP.NET Core","Microsoft .NET Framework"],"published":"2018-07-11","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":"2024-08-05","vendors":["Microsoft"]},"summary":"Attackers can bypass certificate validation in Microsoft .NET Framework components, potentially undermining secure communications.","url":"https://insights.sbomify.com/CVE-2018-8356/"}