{"item": {"cve_id": "CVE-2021-45046", "ghsa_id": "", "osv_id": "", "title": "Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack", "description": "It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default.", "published_at": "2021-12-14T19:15:07.733", "modified_at": "2026-06-17T04:13:05.570", "vendor": "Apache", "product": "log4j", "affected_versions": ["Apache Log4j2"], "fixed_versions": [], "cvss_score": 9.0, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "severity": "CRITICAL", "epss_score": 0.99977, "epss_percentile": 0.9998, "epss_date": "2026-10-08", "is_kev": true, "kev_date": "2023-05-01", "kev_due_date": "2023-05-22", "kev_action": "Apply updates per vendor instructions.", "cwe_ids": ["CWE-917"], "attack_vector": "NETWORK", "attack_complexity": "HIGH", "privileges_required": "NONE", "user_interaction": "NONE", "references": ["http://www.openwall.com/lists/oss-security/2021/12/14/4", "http://www.openwall.com/lists/oss-security/2021/12/15/3", "http://www.openwall.com/lists/oss-security/2021/12/18/1", "https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf", "https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf", "https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf", "https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/", "https://logging.apache.org/log4j/2.x/security.html", "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032", "https://security.gentoo.org/glsa/202310-16", "https://www.oracle.com/security-alerts/alert-cve-2021-44228.html", "https://www.cve.org/CVERecord?id=CVE-2021-44228", "https://www.kb.cert.org/vuls/id/930724", "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html", "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd", "https://www.debian.org/security/2021/dsa-5022", "https://www.oracle.com/security-alerts/cpujan2022.html", "https://www.oracle.com/security-alerts/cpuapr2022.html", "https://www.oracle.com/security-alerts/cpujul2022.html", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45046"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2021-45046", "CVE.org": "https://www.cve.org/CVERecord?id=CVE-2021-45046", "CISA": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45046", "FIRST EPSS": "https://api.first.org/data/v1/epss?cve=CVE-2021-45046"}, "patch_available": null, "workaround_available": null, "sources": ["NVD", "CVE.org", "CISA", "FIRST EPSS"], "reference_items": [{"url": "http://www.openwall.com/lists/oss-security/2021/12/14/4", "tags": ["Mailing List", "Mitigation", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "http://www.openwall.com/lists/oss-security/2021/12/15/3", "tags": ["Mailing List", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "http://www.openwall.com/lists/oss-security/2021/12/18/1", "tags": ["Mailing List", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/", "tags": ["Mailing List", "Release Notes"], "source": "NVD", "name": ""}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/", "tags": ["Mailing List", "Release Notes"], "source": "NVD", "name": ""}, {"url": "https://logging.apache.org/log4j/2.x/security.html", "tags": ["Mitigation", "Release Notes", "Vendor Advisory"], "source": "NVD", "name": ""}, {"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://security.gentoo.org/glsa/202310-16", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.cve.org/CVERecord?id=CVE-2021-44228", "tags": ["Not Applicable"], "source": "NVD", "name": ""}, {"url": "https://www.debian.org/security/2021/dsa-5022", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.kb.cert.org/vuls/id/930724", "tags": ["Third Party Advisory", "US Government Resource"], "source": "NVD", "name": ""}, {"url": "https://www.oracle.com/security-alerts/alert-cve-2021-44228.html", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.oracle.com/security-alerts/cpuapr2022.html", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.oracle.com/security-alerts/cpujan2022.html", "tags": ["Patch", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.oracle.com/security-alerts/cpujul2022.html", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "http://www.openwall.com/lists/oss-security/2021/12/14/4", "tags": ["Mailing List", "Mitigation", "Third Party Advisory", "mailing-list", "x_refsource_MLIST", "x_transferred"], "source": "NVD", "name": ""}, {"url": "http://www.openwall.com/lists/oss-security/2021/12/15/3", "tags": ["Mailing List", "Third Party Advisory", "mailing-list", "x_refsource_MLIST", "x_transferred"], "source": "NVD", "name": ""}, {"url": "http://www.openwall.com/lists/oss-security/2021/12/18/1", "tags": ["Mailing List", "Third Party Advisory", "mailing-list", "x_refsource_MLIST", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf", "tags": ["Third Party Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf", "tags": ["Third Party Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf", "tags": ["Third Party Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf", "tags": ["Third Party Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/", "tags": ["Mailing List", "Release Notes", "vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/", "tags": ["Mailing List", "Release Notes", "vendor-advisory", "x_refsource_FEDORA", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://logging.apache.org/log4j/2.x/security.html", "tags": ["Mitigation", "Release Notes", "Vendor Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032", "tags": ["Third Party Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://security.gentoo.org/glsa/202310-16", "tags": ["Third Party Advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd", "tags": ["Third Party Advisory", "vendor-advisory", "x_refsource_CISCO", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.cve.org/CVERecord?id=CVE-2021-44228", "tags": ["Not Applicable", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.debian.org/security/2021/dsa-5022", "tags": ["Third Party Advisory", "vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html", "tags": ["Third Party Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.kb.cert.org/vuls/id/930724", "tags": ["Third Party Advisory", "US Government Resource", "third-party-advisory", "x_refsource_CERT-VN", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.oracle.com/security-alerts/alert-cve-2021-44228.html", "tags": ["Third Party Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.oracle.com/security-alerts/cpuapr2022.html", "tags": ["Third Party Advisory", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.oracle.com/security-alerts/cpujan2022.html", "tags": ["Patch", "Third Party Advisory", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.oracle.com/security-alerts/cpujul2022.html", "tags": ["Third Party Advisory", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45046", "tags": ["US Government Resource", "government-resource"], "source": "NVD", "name": ""}], "cvss_v4_score": null, "cvss_v4_vector": "", "cvss_v4_severity": "", "nvd_status": "Analyzed", "cna": "apache", "date_reserved": "2021-12-14T00:00:00.000Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "no", "Technical Impact": "total"}, "version": "2.0.3", "timestamp": "2025-02-04T19:31:22.638704Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Apache", "product": "log4j", "ranges": ["de 2.0.1 à 2.12.2 (exclue)", "de 2.13.0 à 2.16.0 (exclue)", "2.0"], "first_unaffected": ["2.12.2", "2.16.0"], "source": "NVD"}, {"vendor": "Cvat", "product": "Computer Vision Annotation Tool", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Audio Development Kit", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Datacenter Manager", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Genomics Kernel Library", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Oneapi", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Secure Device Onboard", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Sensor Solution Firmware Development Kit", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "System Debugger", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "System Studio", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "sppa-t3000 ses3000 Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "Captial", "ranges": ["avant 2019.1", "2019.1"], "first_unaffected": ["2019.1"], "source": "NVD"}, {"vendor": "Siemens", "product": "Comos", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "Desigo Cc Advanced Reports", "ranges": ["4.0", "4.1", "4.2", "5.0", "5.1"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "Desigo Cc Info Center", "ranges": ["5.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Debian", "product": "Debian Linux", "ranges": ["10.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Email Security", "ranges": ["avant 10.0.12"], "first_unaffected": ["10.0.12"], "source": "NVD"}, {"vendor": "Fedoraproject", "product": "Fedora", "ranges": ["34"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa12-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa22-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa32-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa42-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa52-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Apache Software Foundation", "product": "Apache Log4j", "ranges": ["de Apache Log4j2 à 2.16.0 (exclue)"], "first_unaffected": ["2.16.0"], "source": "CVE.org"}], "kev_name": "Apache Log4j2 Deserialization of Untrusted Data Vulnerability", "kev_short_description": "Apache Log4j2 contains a deserialization of untrusted data vulnerability due to the incomplete fix of CVE-2021-44228, where the Thread Context Lookup Pattern is vulnerable to remote code execution in certain non-default configurations.", "kev_ransomware": "Known", "kev_notes": "https://logging.apache.org/log4j/2.x/security.html; https://nvd.nist.gov/vuln/detail/CVE-2021-45046", "kev_cwes": ["CWE-917"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 79, "risk_class": "Critique", "impact": {"confidentialite": "élevé", "integrite": "élevé", "disponibilite": "élevé", "summary": "Un attaquant exploitant cette vulnérabilité pourrait, selon les conditions décrites par les sources, exploitable à distance (réseau), sans authentification préalable, affecter la confidentialité des données, l'intégrité du système et la disponibilité du service.", "basis": "CVSS 3.1"}, "mechanism": "Exécution de code à distance : sous certaines conditions, du code peut être exécuté sur le système.", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de log4j 2.12.2, log4j 2.16.0, Captial 2019.1, Email Security 10.0.12, 6bk1602-0aa12-0tp0 Firmware 2.7.0."}, "mitigation": {"specific": "1 source publie une mesure de contournement étiquetée comme telle : consultez-la avant d'agir, elle fait foi.", "general": ["Maintenir le produit à jour et activer les mises à jour de sécurité.", "Restreindre l'exposition réseau du service au strict nécessaire.", "Appliquer le principe du moindre privilège.", "Surveiller les journaux et les alertes de sécurité."], "specific_links": ["http://www.openwall.com/lists/oss-security/2021/12/14/4"]}, "containment": {"applicable": true, "actions": ["Action recommandée par la CISA : Apply updates per vendor instructions.", "Isoler ou restreindre l'accès au service concerné.", "Restreindre les flux réseau entrants/sortants liés au composant.", "Renforcer la surveillance des journaux et des accès.", "Désactiver temporairement le composant vulnérable si l'activité le permet."]}, "note": "Priorité aux consignes officielles de l'éditeur et des références. Vérifiez toujours l'avis de sécurité avant toute intervention en production.", "official_links": [{"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "Fedora", "domaine": "lists.fedoraproject.org"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "Fedora", "domaine": "lists.fedoraproject.org"}, {"url": "https://logging.apache.org/log4j/2.x/security.html", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "Apache", "domaine": "logging.apache.org"}, {"url": "https://www.oracle.com/security-alerts/cpujan2022.html", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "Oracle", "domaine": "www.oracle.com"}, {"url": "http://www.openwall.com/lists/oss-security/2021/12/14/4", "groupe": "contournement", "groupe_titre": "Mesures de contournement", "editeur": "Openwall (oss-security)", "domaine": "www.openwall.com"}]}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Un attaquant peut faire exécuter son propre code à distance, à distance et sans compte", "headline_is_derived": true, "action": "Mettre à jour vers log4j 2.12.2, log4j 2.16.0 ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "log4j 2.12.2, log4j 2.16.0 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "Apache Log4j2", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers log4j 2.12.2, log4j 2.16.0 ou plus récent, version publiée comme non concernée."}, {"version": "Je ne connais pas ma version", "state": "unknown", "state_label": "À vérifier", "todo": "La version s'affiche généralement dans le menu « À propos » ou « Aide » du logiciel."}], "steps": [{"title": "Sauvegarder avant d'intervenir", "detail": "Une copie récente des données et de la configuration. Si votre hébergeur propose une sauvegarde en un clic, c'est le moment.", "duration": "10 min", "priority": false}, {"title": "Mettre à jour vers log4j 2.12.2, log4j 2.16.0 ou plus récent, version publiée comme non concernée", "detail": "C'est la correction officielle. Tant qu'elle n'est pas appliquée, les autres mesures ne sont que temporaires.", "duration": "15 à 45 min", "priority": true}, {"title": "En attendant : réduire l'exposition sur Internet", "detail": "La faille est exploitable à distance. Limiter l'accès au service depuis l'extérieur (pare-feu, filtrage d'adresses, VPN) réduit fortement le risque.", "duration": "30 min", "priority": false}, {"title": "Vérifier que vous n'avez pas déjà été touché", "detail": "Cette faille est activement exploitée. Contrôler les comptes créés récemment, les connexions inhabituelles et les fichiers modifiés depuis la date de publication.", "duration": "30 min", "priority": true}, {"title": "Confirmer que tout fonctionne encore", "detail": "Après correction : page d'accueil, connexion, et les deux ou trois fonctions dont vous vous servez tous les jours.", "duration": "10 min", "priority": false}], "exploited": true, "exploited_label": "Oui, des attaques réelles sont constatées", "fixed_label": "log4j 2.12.2, log4j 2.16.0 (non concernée selon les sources)", "affected_label": "Apache Log4j2"}, "severity_display": "Critique", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2021-45046", "severity_fr": "Critique", "epss_pct": 100.0, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2021-12-14", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45046"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2021-12-14", "url": "https://www.cve.org/CVERecord?id=CVE-2021-45046"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2023-05-01", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45046"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-08", "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-45046"}], "exploit_public": false, "reseau_sans_auth": true, "exposition": "À distance, sans compte et sans action d'un utilisateur", "owasp": [{"code": "A05", "nom": "Injection", "nom_officiel": "Injection", "slug": "a05-injection", "libelle": "A05:2025 Injection", "url_officielle": "https://top10.owasp.org/2025/A05_2025-Injection/"}]}, "presentation": {"en_bref": [{"question": "Est-elle attaquée ?", "ton": "alerte", "reponse": "Oui, attaques constatées", "source": "Catalogue CISA KEV"}, {"question": "Existe-t-il un correctif ?", "ton": "bon", "reponse": "Oui : 2.12.2, 2.16.0, 2019.1, 10.0.12…", "source": "Versions publiées comme non concernées"}, {"question": "Comment l'attaquer ?", "ton": "alerte", "reponse": "À distance, sans compte et sans action d'un utilisateur", "source": "Vecteur CVSS publié"}, {"question": "Risque d'exploitation", "ton": "alerte", "reponse": "100,0 % sur 30 jours", "source": "Plus probable que 100 % des failles connues"}], "references": [{"cle": "correctif", "titre": "Correctifs et versions corrigées", "explication": "Les pages que les sources désignent comme correctif ou notes de version.", "items": [{"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion", "Notes de version"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion", "Notes de version"], "nom": "", "lien": true, "casse": false}, {"url": "https://logging.apache.org/log4j/2.x/security.html", "domaine": "logging.apache.org", "editeur": "Apache", "etiquettes": ["Mesure de contournement", "Notes de version", "Avis de l'éditeur"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.oracle.com/security-alerts/cpujan2022.html", "domaine": "www.oracle.com", "editeur": "Oracle", "etiquettes": ["Correctif", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}]}, {"cle": "contournement", "titre": "Mesures de contournement", "explication": "Ce qu'on peut faire en attendant le correctif, quand une source en publie.", "items": [{"url": "http://www.openwall.com/lists/oss-security/2021/12/14/4", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion", "Mesure de contournement", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}]}, {"cle": "avis_tiers", "titre": "Avis d'autorités et d'organismes tiers", "explication": "CERT, agences gouvernementales, bases de vulnérabilités, chercheurs.", "items": [{"url": "http://www.openwall.com/lists/oss-security/2021/12/15/3", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2021/12/18/1", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf", "domaine": "cert-portal.siemens.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf", "domaine": "cert-portal.siemens.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf", "domaine": "cert-portal.siemens.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf", "domaine": "cert-portal.siemens.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032", "domaine": "psirt.global.sonicwall.com", "editeur": "SonicWall", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://security.gentoo.org/glsa/202310-16", "domaine": "security.gentoo.org", "editeur": "Gentoo", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd", "domaine": "tools.cisco.com", "editeur": "Cisco", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.debian.org/security/2021/dsa-5022", "domaine": "www.debian.org", "editeur": "Debian", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html", "domaine": "www.intel.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.kb.cert.org/vuls/id/930724", "domaine": "www.kb.cert.org", "editeur": "CERT/CC", "etiquettes": ["Avis d'un tiers", "Ressource gouvernementale américaine"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.oracle.com/security-alerts/alert-cve-2021-44228.html", "domaine": "www.oracle.com", "editeur": "Oracle", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.oracle.com/security-alerts/cpuapr2022.html", "domaine": "www.oracle.com", "editeur": "Oracle", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.oracle.com/security-alerts/cpujul2022.html", "domaine": "www.oracle.com", "editeur": "Oracle", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45046", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}, {"cle": "autres", "titre": "Autres références", "explication": "Références publiées sans étiquette par les sources : leur nature n'est pas qualifiée.", "items": [{"url": "https://www.cve.org/CVERecord?id=CVE-2021-44228", "domaine": "www.cve.org", "editeur": "", "etiquettes": ["Non applicable"], "nom": "", "lien": true, "casse": false}]}], "liens_correction": [{"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion", "Notes de version"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion", "Notes de version"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://logging.apache.org/log4j/2.x/security.html", "domaine": "logging.apache.org", "editeur": "Apache", "etiquettes": ["Mesure de contournement", "Notes de version", "Avis de l'éditeur"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://www.oracle.com/security-alerts/cpujan2022.html", "domaine": "www.oracle.com", "editeur": "Oracle", "etiquettes": ["Correctif", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "http://www.openwall.com/lists/oss-security/2021/12/14/4", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion", "Mesure de contournement", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false, "groupe": "contournement", "groupe_titre": "Mesures de contournement"}], "nb_exploits": 0, "cvss": {"version": "3.1", "vecteur": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "metriques": [{"code": "AV", "nom": "Vecteur d'attaque", "valeur": "Réseau (à distance, y compris par Internet)", "brut": "N", "explication": "D'où l'attaquant doit agir."}, {"code": "AC", "nom": "Complexité de l'attaque", "valeur": "Élevée", "brut": "H", "explication": "Conditions hors du contrôle de l'attaquant."}, {"code": "PR", "nom": "Privilèges requis", "valeur": "Aucun (pas de compte)", "brut": "N", "explication": "Droits dont l'attaquant a besoin avant d'attaquer."}, {"code": "UI", "nom": "Interaction de l'utilisateur", "valeur": "Aucune", "brut": "N", "explication": "Une victime doit-elle cliquer ou ouvrir quelque chose ?"}, {"code": "S", "nom": "Portée", "valeur": "Modifiée (d'autres composants peuvent être touchés)", "brut": "C", "explication": "L'attaque peut-elle toucher d'autres composants que celui qui est vulnérable ?"}, {"code": "C", "nom": "Confidentialité", "valeur": "Élevé", "brut": "H", "explication": "Accès à des informations protégées."}, {"code": "I", "nom": "Intégrité", "valeur": "Élevé", "brut": "H", "explication": "Modification de données ou du système."}, {"code": "A", "nom": "Disponibilité", "valeur": "Élevé", "brut": "H", "explication": "Arrêt ou ralentissement du service."}], "calculateur": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-917", "nom": "", "url": "https://cwe.mitre.org/data/definitions/917.html"}], "owasp": [{"code": "A05", "nom": "Injection", "nom_officiel": "Injection", "slug": "a05-injection", "libelle": "A05:2025 Injection", "url_officielle": "https://top10.owasp.org/2025/A05_2025-Injection/"}], "ssvc": {"lignes": [{"nom": "Exploitation", "valeur": "Exploitation active constatée", "brut": "active"}, {"nom": "Automatisable", "valeur": "Non : l'attaque ne peut pas être entièrement automatisée", "brut": "no"}, {"nom": "Impact technique", "valeur": "Total : contrôle complet du composant ou de ses informations", "brut": "total"}], "version": "2.0.3", "date": "2025-02-04", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2021-12-14", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2021-12-14", "libelle": "Publication de la vulnérabilité", "qui": "apache"}, {"date": "2023-05-01", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2023-05-22", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2025-02-04", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2026-06-17", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}, {"date": "2026-10-08", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45046", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2021-45046", "description": "Enregistrement officiel publié par l'organisme qui a attribué l'identifiant."}, {"nom": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-45046", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-45046", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2021-45046", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2021-45046", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Apache", "product": "log4j", "ranges": ["de 2.0.1 à 2.12.2 (exclue)", "de 2.13.0 à 2.16.0 (exclue)", "2.0"], "first_unaffected": ["2.12.2", "2.16.0"], "source": "NVD"}, {"vendor": "Cvat", "product": "Computer Vision Annotation Tool", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Audio Development Kit", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Datacenter Manager", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Genomics Kernel Library", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Oneapi", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Secure Device Onboard", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "Sensor Solution Firmware Development Kit", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "System Debugger", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Intel", "product": "System Studio", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "sppa-t3000 ses3000 Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "Captial", "ranges": ["avant 2019.1", "2019.1"], "first_unaffected": ["2019.1"], "source": "NVD"}, {"vendor": "Siemens", "product": "Comos", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "Desigo Cc Advanced Reports", "ranges": ["4.0", "4.1", "4.2", "5.0", "5.1"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "Desigo Cc Info Center", "ranges": ["5.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Debian", "product": "Debian Linux", "ranges": ["10.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Email Security", "ranges": ["avant 10.0.12"], "first_unaffected": ["10.0.12"], "source": "NVD"}, {"vendor": "Fedoraproject", "product": "Fedora", "ranges": ["34"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa12-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa22-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa32-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa42-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Siemens", "product": "6bk1602-0aa52-0tp0 Firmware", "ranges": ["avant 2.7.0"], "first_unaffected": ["2.7.0"], "source": "NVD"}, {"vendor": "Apache Software Foundation", "product": "Apache Log4j", "ranges": ["de Apache Log4j2 à 2.16.0 (exclue)"], "first_unaffected": ["2.16.0"], "source": "CVE.org"}], "notes_kev": ["https://logging.apache.org/log4j/2.x/security.html", "https://nvd.nist.gov/vuln/detail/CVE-2021-45046"]}, "consulted_at": "2026-10-08T16:14:27.846159+00:00"}