{"item": {"cve_id": "CVE-2020-3580", "ghsa_id": "", "osv_id": "", "title": "Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities", "description": "Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.", "published_at": "2020-10-21T19:15:18.607", "modified_at": "2026-08-11T19:42:47.633", "vendor": "Cisco", "product": "Secure Firewall Threat Defense", "affected_versions": ["n/a"], "fixed_versions": [], "cvss_score": 6.1, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "severity": "MEDIUM", "epss_score": 0.85575, "epss_percentile": 0.99719, "epss_date": "2026-10-06", "is_kev": true, "kev_date": "2021-11-03", "kev_due_date": "2022-05-03", "kev_action": "Apply updates per vendor instructions.", "cwe_ids": ["CWE-79"], "attack_vector": "NETWORK", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "REQUIRED", "references": ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe", "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2020-3580", "CVE.org": "https://www.cve.org/CVERecord?id=CVE-2020-3580", "CISA": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580", "FIRST EPSS": "https://api.first.org/data/v1/epss?cve=CVE-2020-3580"}, "patch_available": null, "workaround_available": null, "sources": ["NVD", "CVE.org", "CISA", "FIRST EPSS"], "reference_items": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe", "tags": ["Patch", "Vendor Advisory"], "source": "NVD", "name": ""}, {"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe", "tags": ["Patch", "Vendor Advisory", "vendor-advisory", "x_refsource_CISCO", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580", "tags": ["US Government Resource", "government-resource"], "source": "NVD", "name": ""}], "cvss_v4_score": null, "cvss_v4_vector": "", "cvss_v4_severity": "", "nvd_status": "Analyzed", "cna": "cisco", "date_reserved": "2019-12-12T00:00:00.000Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "no", "Technical Impact": "partial"}, "version": "2.0.3", "timestamp": "2024-11-08T16:07:33.171667Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Cisco", "product": "Secure Firewall Threat Defense", "ranges": ["avant 6.4.0.12", "de 6.5.0 à 6.6.4 (exclue)", "de 6.7.0 à 6.7.0.2 (exclue)"], "first_unaffected": ["6.4.0.12", "6.6.4", "6.7.0.2"], "source": "NVD"}, {"vendor": "Cisco", "product": "Adaptive Security Appliance Software", "ranges": ["avant 9.8.4.34", "de 9.9 à 9.9.2.85 (exclue)", "de 9.10 à 9.12.4.13 (exclue)", "de 9.13 à 9.13.1.21 (exclue)", "de 9.14 à 9.14.2.8 (exclue)", "de 9.15 à 9.15.1.15 (exclue)"], "first_unaffected": ["9.8.4.34", "9.9.2.85", "9.12.4.13", "9.13.1.21", "9.14.2.8", "9.15.1.15"], "source": "NVD"}, {"vendor": "Cisco", "product": "Cisco Adaptive Security Appliance (ASA) Software", "ranges": ["n/a"], "first_unaffected": [], "source": "CVE.org"}], "kev_name": "Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability", "kev_short_description": "Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an insufficient input validation vulnerability for user-supplied input by the web services interface.  Successful exploitation could allow an attacker to perform cross-site scripting (XSS) in the context of the interface or access sensitive browser-based information.", "kev_ransomware": "Known", "kev_notes": "https://nvd.nist.gov/vuln/detail/CVE-2020-3580", "kev_cwes": ["CWE-79"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 67, "risk_class": "Important", "impact": {"confidentialite": "limité", "integrite": "limité", "disponibilite": "aucun", "summary": "Un attaquant exploitant cette vulnérabilité pourrait, selon les conditions décrites par les sources, exploitable à distance (réseau), sans authentification préalable, requiert une interaction de l'utilisateur, affecter la confidentialité des données et l'intégrité du système.", "basis": "CVSS 3.1"}, "mechanism": "Injection de code côté client (XSS) : des données non filtrées sont renvoyées dans une page, ce qui peut altérer son affichage ou son comportement.", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Secure Firewall Threat Defense 6.4.0.12, Secure Firewall Threat Defense 6.6.4, Secure Firewall Threat Defense 6.7.0.2, Adaptive Security Appliance Software 9.8.4.34, Adaptive Security Appliance Software 9.9.2.85."}, "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 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "Cisco", "domaine": "tools.cisco.com"}]}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Du code piégé peut être affiché aux visiteurs de Secure Firewall Threat Defense, à distance et sans compte", "headline_is_derived": true, "action": "Mettre à jour vers Secure Firewall Threat Defense 6.4.0.12, Secure Firewall Threat Defense 6.6.4, Secure Firewall Threat Defense 6.7.0.2, Adaptive Security Appliance Software 9.8.4.34 ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "Secure Firewall Threat Defense 6.4.0.12, Secure Firewall Threat Defense 6.6.4, Secure Firewall Threat Defense 6.7.0.2, Adaptive Security Appliance Software 9.8.4.34 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "n/a", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers Secure Firewall Threat Defense 6.4.0.12, Secure Firewall Threat Defense 6.6.4, Secure Firewall Threat Defense 6.7.0.2, Adaptive Security Appliance Software 9.8.4.34 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 Secure Firewall Threat Defense 6.4.0.12, Secure Firewall Threat Defense 6.6.4, Secure Firewall Threat Defense 6.7.0.2, Adaptive Security Appliance Software 9.8.4.34 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": "Secure Firewall Threat Defense 6.4.0.12, Secure Firewall Threat Defense 6.6.4, Secure Firewall Threat Defense 6.7.0.2, Adaptive Security Appliance Software 9.8.4.34 (non concernée selon les sources)", "affected_label": "n/a"}, "severity_display": "Moyenne", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2020-3580", "severity_fr": "Moyenne", "epss_pct": 85.6, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2020-10-21", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-3580"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2020-10-21", "url": "https://www.cve.org/CVERecord?id=CVE-2020-3580"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2021-11-03", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-06", "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-3580"}], "exploit_public": false, "reseau_sans_auth": false, "exposition": "À distance, sous conditions (compte ou 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 : 6.4.0.12, 6.6.4, 6.7.0.2, 9.8.4.34…", "source": "Versions publiées comme non concernées"}, {"question": "Comment l'attaquer ?", "ton": "neutre", "reponse": "À distance, sous conditions (compte ou action d'un utilisateur)", "source": "Vecteur CVSS publié"}, {"question": "Risque d'exploitation", "ton": "alerte", "reponse": "85,6 % 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe", "domaine": "tools.cisco.com", "editeur": "Cisco", "etiquettes": ["Correctif", "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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}], "liens_correction": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe", "domaine": "tools.cisco.com", "editeur": "Cisco", "etiquettes": ["Correctif", "Avis de l'éditeur"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}], "nb_exploits": 0, "cvss": {"version": "3.1", "vecteur": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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": "Requise", "brut": "R", "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": "Faible", "brut": "L", "explication": "Accès à des informations protégées."}, {"code": "I", "nom": "Intégrité", "valeur": "Faible", "brut": "L", "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:R/S:C/C:L/I:L/A:N", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-79", "nom": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "url": "https://cwe.mitre.org/data/definitions/79.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": "Partiel : contrôle ou informations limités", "brut": "partial"}], "version": "2.0.3", "date": "2024-11-08", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2019-12-12", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2020-10-21", "libelle": "Publication de la vulnérabilité", "qui": "cisco"}, {"date": "2021-11-03", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2022-05-03", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2024-11-08", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2026-08-11", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}, {"date": "2026-10-06", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-3580", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2020-3580", "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-2020-3580", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2020-3580", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2020-3580", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2020-3580", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Cisco", "product": "Secure Firewall Threat Defense", "ranges": ["avant 6.4.0.12", "de 6.5.0 à 6.6.4 (exclue)", "de 6.7.0 à 6.7.0.2 (exclue)"], "first_unaffected": ["6.4.0.12", "6.6.4", "6.7.0.2"], "source": "NVD"}, {"vendor": "Cisco", "product": "Adaptive Security Appliance Software", "ranges": ["avant 9.8.4.34", "de 9.9 à 9.9.2.85 (exclue)", "de 9.10 à 9.12.4.13 (exclue)", "de 9.13 à 9.13.1.21 (exclue)", "de 9.14 à 9.14.2.8 (exclue)", "de 9.15 à 9.15.1.15 (exclue)"], "first_unaffected": ["9.8.4.34", "9.9.2.85", "9.12.4.13", "9.13.1.21", "9.14.2.8", "9.15.1.15"], "source": "NVD"}, {"vendor": "Cisco", "product": "Cisco Adaptive Security Appliance (ASA) Software", "ranges": ["n/a"], "first_unaffected": [], "source": "CVE.org"}], "notes_kev": ["https://nvd.nist.gov/vuln/detail/CVE-2020-3580"]}, "consulted_at": "2026-10-07T04:52:28.142156+00:00"}