{"item": {"cve_id": "CVE-2024-38475", "ghsa_id": "", "osv_id": "", "title": "Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.", "description": "Improper escaping of output in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure. \n\nSubstitutions in server context that use a backreferences or variables as the first segment of the substitution are affected.  Some unsafe RewiteRules will be broken by this change and the rewrite flag \"UnsafePrefixStat\" can be used to opt back in once ensuring the substitution is appropriately constrained.", "published_at": "2024-07-01T19:15:04.883", "modified_at": "2026-06-17T07:40:21.380", "vendor": "Apache", "product": "Http Server", "affected_versions": ["2.4.0"], "fixed_versions": [], "cvss_score": 9.1, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "severity": "CRITICAL", "epss_score": 0.99957, "epss_percentile": 0.99975, "epss_date": "2026-10-07", "is_kev": true, "kev_date": "2025-05-01", "kev_due_date": "2025-05-22", "kev_action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cwe_ids": ["CWE-116"], "attack_vector": "NETWORK", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "NONE", "references": ["https://httpd.apache.org/security/vulnerabilities_24.html", "https://security.netapp.com/advisory/ntap-20240712-0001/", "http://www.openwall.com/lists/oss-security/2024/07/01/8", "https://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf", "https://httpd.apache.org/security/vulnerabilities_24.html", "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0018", "https://security.netapp.com/advisory/ntap-20240712-0001/", "https://www.blackhat.com/us-24/briefings/schedule/index.html#confusion-attacks-exploiting-hidden-semantic-ambiguity-in-apache-http-server-pre-recorded-40227", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38475"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2024-38475", "CVE.org": "https://www.cve.org/CVERecord?id=CVE-2024-38475", "CISA": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38475", "FIRST EPSS": "https://api.first.org/data/v1/epss?cve=CVE-2024-38475"}, "patch_available": null, "workaround_available": null, "sources": ["NVD", "CVE.org", "CISA", "FIRST EPSS"], "reference_items": [{"url": "https://httpd.apache.org/security/vulnerabilities_24.html", "tags": ["Vendor Advisory"], "source": "NVD", "name": ""}, {"url": "https://security.netapp.com/advisory/ntap-20240712-0001/", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "http://www.openwall.com/lists/oss-security/2024/07/01/8", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf", "tags": ["Patch"], "source": "NVD", "name": ""}, {"url": "https://httpd.apache.org/security/vulnerabilities_24.html", "tags": ["Vendor Advisory", "vendor-advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0018", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://security.netapp.com/advisory/ntap-20240712-0001/", "tags": ["Third Party Advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.blackhat.com/us-24/briefings/schedule/index.html#confusion-attacks-exploiting-hidden-semantic-ambiguity-in-apache-http-server-pre-recorded-40227", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38475", "tags": ["Third Party Advisory", "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": "2024-06-17T11:09:56.096Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "yes", "Technical Impact": "total"}, "version": "2.0.3", "timestamp": "2025-05-02T03:55:18.245532Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Apache", "product": "Http Server", "ranges": ["de 2.4.0 à 2.4.60 (exclue)"], "first_unaffected": ["2.4.60"], "source": "NVD"}, {"vendor": "Netapp", "product": "Ontap 9", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 200 Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 210 Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 400 Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 410 Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 500v Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Apache Software Foundation", "product": "Apache HTTP Server", "ranges": ["de 2.4.0 à 2.4.59 (incluse)"], "first_unaffected": [], "source": "CVE.org"}], "kev_name": "Apache HTTP Server Improper Escaping of Output Vulnerability", "kev_short_description": "Apache HTTP Server contains an improper escaping of output vulnerability in mod_rewrite that allows an attacker to map URLs to filesystem locations that are permitted to be served by the server but are not intentionally/directly reachable by any URL, resulting in code execution or source code disclosure.", "kev_ransomware": "Unknown", "kev_notes": "This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://httpd.apache.org/security/vulnerabilities_24.html ; https://nvd.nist.gov/vuln/detail/CVE-2024-38475", "kev_cwes": ["CWE-116"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 83, "risk_class": "Critique", "impact": {"confidentialite": "élevé", "integrite": "élevé", "disponibilite": "aucun", "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 et l'intégrité du système.", "basis": "CVSS 3.1"}, "mechanism": "Encodage ou échappement incorrect en sortie : des caractères spéciaux ne sont pas neutralisés avant affichage ou transmission.", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Http Server 2.4.60, Sma 200 Firmware 10.2.1.14-75sv, Sma 210 Firmware 10.2.1.14-75sv, Sma 400 Firmware 10.2.1.14-75sv, Sma 410 Firmware 10.2.1.14-75sv."}, "mitigation": {"specific": "Aucune mesure de mitigation spécifique confirmée par les sources consultées. Consultez les références officielles pour d'éventuelles mesures détaillées.", "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": []}, "containment": {"applicable": true, "actions": ["Action recommandée par la CISA : Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "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://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "GitHub", "domaine": "github.com"}, {"url": "https://httpd.apache.org/security/vulnerabilities_24.html", "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur", "editeur": "Apache", "domaine": "httpd.apache.org"}]}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Faille de sécurité signalée dans Http Server", "headline_is_derived": false, "action": "Mettre à jour vers Http Server 2.4.60, Sma 200 Firmware 10.2.1.14-75sv ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "Http Server 2.4.60, Sma 200 Firmware 10.2.1.14-75sv ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "2.4.0", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers Http Server 2.4.60, Sma 200 Firmware 10.2.1.14-75sv 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 Http Server 2.4.60, Sma 200 Firmware 10.2.1.14-75sv 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": "Http Server 2.4.60, Sma 200 Firmware 10.2.1.14-75sv (non concernée selon les sources)", "affected_label": "2.4.0"}, "severity_display": "Critique", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2024-38475", "severity_fr": "Critique", "epss_pct": 100.0, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2024-07-01", "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38475"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2024-07-01", "url": "https://www.cve.org/CVERecord?id=CVE-2024-38475"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2025-05-01", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38475"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-07", "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-38475"}], "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 : 2.4.60, 10.2.1.14-75sv", "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://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Correctif"], "nom": "", "lien": true, "casse": false}]}, {"cle": "avis_editeur", "titre": "Avis de sécurité de l'éditeur", "explication": "La parole de l'éditeur du produit : elle fait foi pour savoir quoi installer.", "items": [{"url": "https://httpd.apache.org/security/vulnerabilities_24.html", "domaine": "httpd.apache.org", "editeur": "Apache", "etiquettes": ["Avis de l'éditeur"], "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": "https://security.netapp.com/advisory/ntap-20240712-0001/", "domaine": "security.netapp.com", "editeur": "NetApp", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2024/07/01/8", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0018", "domaine": "psirt.global.sonicwall.com", "editeur": "SonicWall", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.blackhat.com/us-24/briefings/schedule/index.html#confusion-attacks-exploiting-hidden-semantic-ambiguity-in-apache-http-server-pre-recorded-40227", "domaine": "www.blackhat.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38475", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Avis d'un tiers", "Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}], "liens_correction": [{"url": "https://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Correctif"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://httpd.apache.org/security/vulnerabilities_24.html", "domaine": "httpd.apache.org", "editeur": "Apache", "etiquettes": ["Avis de l'éditeur"], "nom": "", "lien": true, "casse": false, "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur"}], "nb_exploits": 0, "cvss": {"version": "3.1", "vecteur": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "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": "Faible", "brut": "L", "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": "Inchangée", "brut": "U", "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": "Aucun", "brut": "N", "explication": "Arrêt ou ralentissement du service."}], "calculateur": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-116", "nom": "", "url": "https://cwe.mitre.org/data/definitions/116.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": "Oui : l'attaque peut être enchaînée sans intervention humaine", "brut": "yes"}, {"nom": "Impact technique", "valeur": "Total : contrôle complet du composant ou de ses informations", "brut": "total"}], "version": "2.0.3", "date": "2025-05-02", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2024-06-17", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2024-07-01", "libelle": "Publication de la vulnérabilité", "qui": "apache"}, {"date": "2025-05-01", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2025-05-02", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2025-05-22", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2026-06-17", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}, {"date": "2026-10-07", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38475", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2024-38475", "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-2024-38475", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2024-38475", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2024-38475", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2024-38475", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Apache", "product": "Http Server", "ranges": ["de 2.4.0 à 2.4.60 (exclue)"], "first_unaffected": ["2.4.60"], "source": "NVD"}, {"vendor": "Netapp", "product": "Ontap 9", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 200 Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 210 Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 400 Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 410 Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Sonicwall", "product": "Sma 500v Firmware", "ranges": ["avant 10.2.1.14-75sv"], "first_unaffected": ["10.2.1.14-75sv"], "source": "NVD"}, {"vendor": "Apache Software Foundation", "product": "Apache HTTP Server", "ranges": ["de 2.4.0 à 2.4.59 (incluse)"], "first_unaffected": [], "source": "CVE.org"}], "notes_kev": ["https://httpd.apache.org/security/vulnerabilities_24.html", "https://nvd.nist.gov/vuln/detail/CVE-2024-38475"]}, "consulted_at": "2026-10-07T22:36:26.605955+00:00"}