{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2020-17049 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2020-17049 is a medium-severity vulnerability in Microsoft Windows Server 2012, published on 11 Nov 2020. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-17049 and fix it if it is affected.\n\nWhat it is: CVE-2020-17049 is a medium-severity vulnerability in Microsoft Windows Server 2012, published on 11 Nov 2020. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-17049 in the wild and no public exploit code.\n\nAffected product: Microsoft Windows Server 2012. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2020-17049/ (Markdown: https://insights.sbomify.com/CVE-2020-17049/index.md)","id":"CVE-2020-17049","markdown":"https://insights.sbomify.com/CVE-2020-17049/index.md","name":"CVE-2020-17049","record":{"aliases":["ALSA-2023:2570","AZL-10661","AZL-36992","GHSA-g2p3-j47p-8cwj","RHSA-2023:2570","openSUSE-SU-2024:13200-1"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Windows Server Kerberos","requires_auth":"high_privilege","summary":"Attackers can bypass Kerberos Constrained Delegation restrictions by tampering with service tickets, requiring a compromised service configured for KCD.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"microsoft","cpe":[{"product":"windows_server_2012","vendor":"microsoft"},{"product":"windows_server_2016","vendor":"microsoft"},{"product":"windows_server_2019","vendor":"microsoft"},{"product":"samba","vendor":"samba"}],"cvss":{"score":6.6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"A security feature bypass vulnerability exists in the way Key Distribution Center (KDC) determines if a service ticket can be used for delegation via Kerberos Constrained Delegation (KCD).\nTo exploit the vulnerability, a compromised service that is configured to use KCD could tamper with a service ticket that is not valid for delegation to force the KDC to accept it.\nThe update addresses this vulnerability by changing how the KDC validates service tickets used with KCD.","ecosystems":["AlmaLinux:9","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux:9::baseos"],"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":"Kerberos KDC Security Feature Bypass Vulnerability","id":"CVE-2020-17049","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"microsoft:windows_server_2012","products":["microsoft:windows_server_2012","microsoft:windows_server_2016","microsoft:windows_server_2019","samba:samba"],"type":"security_feature_bypass","year":"2020"},"n_packages":23,"n_references":3,"next":{"headline":"Windows Network File System Remote Code Execution Vulnerability","id":"CVE-2020-17051"},"packages":[{"ecosystem":"AlmaLinux:9","fixed":["1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-devel","purl":"pkg:rpm/almalinux/krb5-devel","source":"ALSA-2023:2570"},{"ecosystem":"AlmaLinux:9","fixed":["1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-libs","purl":"pkg:rpm/almalinux/krb5-libs","source":"ALSA-2023:2570"},{"ecosystem":"AlmaLinux:9","fixed":["1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-pkinit","purl":"pkg:rpm/almalinux/krb5-pkinit","source":"ALSA-2023:2570"},{"ecosystem":"AlmaLinux:9","fixed":["1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-server","purl":"pkg:rpm/almalinux/krb5-server","source":"ALSA-2023:2570"},{"ecosystem":"AlmaLinux:9","fixed":["1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-server-ldap","purl":"pkg:rpm/almalinux/krb5-server-ldap","source":"ALSA-2023:2570"},{"ecosystem":"AlmaLinux:9","fixed":["1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-workstation","purl":"pkg:rpm/almalinux/krb5-workstation","source":"ALSA-2023:2570"},{"ecosystem":"AlmaLinux:9","fixed":["1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"libkadm5","purl":"pkg:rpm/almalinux/libkadm5","source":"ALSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-devel","purl":"pkg:rpm/redhat/krb5-devel","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5","purl":"pkg:rpm/redhat/krb5","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-debuginfo","purl":"pkg:rpm/redhat/krb5-debuginfo","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-debugsource","purl":"pkg:rpm/redhat/krb5-debugsource","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-libs","purl":"pkg:rpm/redhat/krb5-libs","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-libs-debuginfo","purl":"pkg:rpm/redhat/krb5-libs-debuginfo","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-pkinit","purl":"pkg:rpm/redhat/krb5-pkinit","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-pkinit-debuginfo","purl":"pkg:rpm/redhat/krb5-pkinit-debuginfo","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-server","purl":"pkg:rpm/redhat/krb5-server","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-server-debuginfo","purl":"pkg:rpm/redhat/krb5-server-debuginfo","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-server-ldap","purl":"pkg:rpm/redhat/krb5-server-ldap","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-server-ldap-debuginfo","purl":"pkg:rpm/redhat/krb5-server-ldap-debuginfo","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-workstation","purl":"pkg:rpm/redhat/krb5-workstation","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"krb5-workstation-debuginfo","purl":"pkg:rpm/redhat/krb5-workstation-debuginfo","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"libkadm5","purl":"pkg:rpm/redhat/libkadm5","source":"RHSA-2023:2570"},{"ecosystem":"Red Hat:enterprise_linux:9::baseos","fixed":["0:1.20.1-8.el9"],"introduced":["0"],"last_affected":[],"package":"libkadm5-debuginfo","purl":"pkg:rpm/redhat/libkadm5-debuginfo","source":"RHSA-2023:2570"}],"prev":{"headline":"Chakra Scripting Engine Memory Corruption Vulnerability","id":"CVE-2020-17048"},"products":["Windows Server 2008  Service Pack 2","Windows Server 2008 R2 Service Pack 1","Windows Server 2008 R2 Service Pack 1 (Server Core installation)","Windows Server 2008 Service Pack 2","Windows Server 2008 Service Pack 2 (Server Core installation)","Windows Server 2012","Windows Server 2012 (Server Core installation)","Windows Server 2012 R2","Windows Server 2012 R2 (Server Core installation)","Windows Server 2016","Windows Server 2016 (Server Core installation)","Windows Server 2019","Windows Server 2019 (Server Core installation)","Windows Server version 2004","Windows Server version 20H2","Windows Server, version 1903 (Server Core installation)","Windows Server, version 1909 (Server Core installation)"],"published":"2020-11-11","related":[{"cvss_score":9.8,"headline":"Microsoft Windows Server Update Service (WSUS) Deserialization of Untrusted Data","id":"CVE-2025-59287","kev_date_added":"2025-10-24","published":"2025-10-14"},{"cvss_score":9.8,"headline":"Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability","id":"CVE-2026-69595","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":9.8,"headline":"Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability","id":"CVE-2026-78445","kev_date_added":null,"published":"2026-09-08"},{"cvss_score":9.8,"headline":"Windows Netlogon Remote Code Execution Vulnerability","id":"CVE-2026-41089","kev_date_added":null,"published":"2026-05-12"},{"cvss_score":9.8,"headline":"Windows KDC Proxy Remote Code Execution Vulnerability","id":"CVE-2024-43639","kev_date_added":null,"published":"2024-11-12"},{"cvss_score":9.8,"headline":"Windows Network File System Remote Code Execution Vulnerability","id":"CVE-2023-24941","kev_date_added":null,"published":"2023-05-09"},{"cvss_score":9.8,"headline":"Windows Network File System Remote Code Execution Vulnerability","id":"CVE-2022-30136","kev_date_added":null,"published":"2022-06-15"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-11-15","vendors":["Microsoft"]},"summary":"Attackers can bypass Kerberos Constrained Delegation restrictions by tampering with service tickets, requiring a compromised service configured for KCD.","url":"https://insights.sbomify.com/CVE-2020-17049/"}