{"item": {"cve_id": "CVE-2022-0028", "ghsa_id": "", "osv_id": "", "title": "PAN-OS: Reflected Amplification Denial-of-Service (DoS) Vulnerability in URL Filtering", "description": "A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The DoS attack would appear to originate from a Palo Alto Networks PA-Series (hardware), VM-Series (virtual) and CN-Series (container) firewall against an attacker-specified target. To be misused by an external attacker, the firewall configuration must have a URL filtering profile with one or more blocked categories assigned to a source zone that has an external facing interface. This configuration is not typical for URL filtering and, if set, is likely unintended by the administrator. If exploited, this issue would not impact the confidentiality, integrity, or availability of our products. However, the resulting denial-of-service (DoS) attack may help obfuscate the identity of the attacker and implicate the firewall as the source of the attack. We have taken prompt action to address this issue in our PAN-OS software. All software updates for this issue are expected to be released no later than the week of August 15, 2022. This issue does not impact Panorama M-Series or Panorama virtual appliances. This issue has been resolved for all Cloud NGFW and Prisma Access customers and no additional action is required from them.", "published_at": "2022-08-10T16:15:08.343", "modified_at": "2026-06-17T04:19:55.243", "vendor": "Paloaltonetworks", "product": "Pan-os", "affected_versions": ["8.1", "9.0", "9.1", "10.0", "10.1", "10.2"], "fixed_versions": ["8.1.23-h1", "9.0.16-h3", "9.1.14-h4", "10.0.11-h1", "10.1.6-h6", "10.2.2-h2"], "cvss_score": 8.6, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "severity": "HIGH", "epss_score": 0.02542, "epss_percentile": 0.84478, "epss_date": "2026-10-06", "is_kev": true, "kev_date": "2022-08-22", "kev_due_date": "2022-09-12", "kev_action": "Apply updates per vendor instructions.", "cwe_ids": ["CWE-406"], "attack_vector": "NETWORK", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "NONE", "references": ["https://security.paloaltonetworks.com/CVE-2022-0028", "https://security.paloaltonetworks.com/CVE-2022-0028", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0028"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2022-0028", "CVE.org": "https://www.cve.org/CVERecord?id=CVE-2022-0028", "CISA": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0028", "FIRST EPSS": "https://api.first.org/data/v1/epss?cve=CVE-2022-0028"}, "patch_available": true, "workaround_available": null, "sources": ["NVD", "CVE.org", "CISA", "FIRST EPSS"], "reference_items": [{"url": "https://security.paloaltonetworks.com/CVE-2022-0028", "tags": ["Mitigation", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://security.paloaltonetworks.com/CVE-2022-0028", "tags": ["Mitigation", "Third Party Advisory", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0028", "tags": ["US Government Resource", "government-resource"], "source": "NVD", "name": ""}], "cvss_v4_score": null, "cvss_v4_vector": "", "cvss_v4_severity": "", "nvd_status": "Analyzed", "cna": "palo_alto", "date_reserved": "2021-12-28T00:00:00.000Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "yes", "Technical Impact": "partial"}, "version": "2.0.3", "timestamp": "2025-01-27T22:26:35.523479Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Paloaltonetworks", "product": "Pan-os", "ranges": ["de 8.1.0 à 8.1.23 (exclue)", "de 9.0.0 à 9.0.16 (exclue)", "de 9.1.0 à 9.1.14 (exclue)", "de 10.0.0 à 10.0.11 (exclue)", "de 10.1.0 à 10.1.6 (exclue)", "de 10.2.0 à 10.2.2 (exclue)", "8.1.23", "9.0.16", "9.1.14", "10.0.11", "10.1.6", "10.2.2"], "first_unaffected": ["8.1.23", "9.0.16", "9.1.14", "10.0.11", "10.1.6", "10.2.2"], "source": "NVD"}, {"vendor": "Palo Alto Networks", "product": "Cloud NGFW", "ranges": [], "first_unaffected": ["All"], "source": "CVE.org"}, {"vendor": "Palo Alto Networks", "product": "PAN-OS", "ranges": ["de 8.1 à 8.1.23-h1 (exclue)", "de 9.0 à 9.0.16-h3 (exclue)", "de 9.1 à 9.1.14-h4 (exclue)", "de 10.0 à 10.0.11-h1 (exclue)", "de 10.1 à 10.1.6-h6 (exclue)", "de 10.2 à 10.2.2-h2 (exclue)"], "first_unaffected": ["8.1.23-h1", "9.0.16-h3", "9.1.14-h4", "10.0.11-h1", "10.1.6-h6", "10.2.2-h2"], "source": "CVE.org"}, {"vendor": "Palo Alto Networks", "product": "Prisma Access", "ranges": [], "first_unaffected": ["2.1 All", "2.2 All", "3.0 All", "3.1 All"], "source": "CVE.org"}], "kev_name": "Palo Alto Networks PAN-OS Reflected Amplification Denial-of-Service Vulnerability", "kev_short_description": "A Palo Alto Networks PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks.", "kev_ransomware": "Unknown", "kev_notes": "https://security.paloaltonetworks.com/CVE-2022-0028; https://nvd.nist.gov/vuln/detail/CVE-2022-0028", "kev_cwes": ["CWE-940"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 58, "risk_class": "Important", "impact": {"confidentialite": "aucun", "integrite": "aucun", "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 disponibilité du service.", "basis": "CVSS 3.1"}, "mechanism": "", "mitigation": {"correction": {"available": true, "text": "Mettre à jour vers une version corrigée : 8.1.23-h1, 9.0.16-h3, 9.1.14-h4, 10.0.11-h1, 10.1.6-h6."}, "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": ["https://security.paloaltonetworks.com/CVE-2022-0028"]}, "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://security.paloaltonetworks.com/CVE-2022-0028", "groupe": "contournement", "groupe_titre": "Mesures de contournement", "editeur": "Palo Alto Networks", "domaine": "security.paloaltonetworks.com"}]}, "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 Pan-os", "headline_is_derived": false, "action": "Mettre à jour Pan-os vers 8.1.23-h1, 9.0.16-h3, 9.1.14-h4.", "action_kind": "update", "concerned": [{"version": "8.1.23-h1, 9.0.16-h3, 9.1.14-h4 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "8.1, 9.0, 9.1, 10.0", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour Pan-os vers 8.1.23-h1, 9.0.16-h3, 9.1.14-h4."}, {"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 Pan-os vers 8.1.23-h1, 9.0.16-h3, 9.1.14-h4", "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": "8.1.23-h1, 9.0.16-h3, 9.1.14-h4", "affected_label": "8.1, 9.0, 9.1, 10.0"}, "severity_display": "Élevée", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2022-0028", "severity_fr": "Élevée", "epss_pct": 2.5, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2022-08-10", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0028"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2022-08-10", "url": "https://www.cve.org/CVERecord?id=CVE-2022-0028"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2022-08-22", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0028"}, {"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-2022-0028"}], "exploit_public": false, "reseau_sans_auth": true, "exposition": "À distance, sans compte et sans action d'un utilisateur", "owasp": [{"code": "A07", "nom": "Défaillances d'authentification", "nom_officiel": "Authentication Failures", "slug": "a07-defaillances-d-authentification", "libelle": "A07:2025 Défaillances d'authentification", "url_officielle": "https://top10.owasp.org/2025/A07_2025-Authentication_Failures/"}]}, "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 : 8.1.23-h1, 9.0.16-h3, 9.1.14-h4, 10.0.11-h1…", "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": "vigilance", "reponse": "2,5 % sur 30 jours", "source": "Plus probable que 84 % des failles connues"}], "references": [{"cle": "contournement", "titre": "Mesures de contournement", "explication": "Ce qu'on peut faire en attendant le correctif, quand une source en publie.", "items": [{"url": "https://security.paloaltonetworks.com/CVE-2022-0028", "domaine": "security.paloaltonetworks.com", "editeur": "Palo Alto Networks", "etiquettes": ["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": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0028", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}], "liens_correction": [{"url": "https://security.paloaltonetworks.com/CVE-2022-0028", "domaine": "security.paloaltonetworks.com", "editeur": "Palo Alto Networks", "etiquettes": ["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:L/PR:N/UI:N/S:C/C:N/I:N/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": "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": "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": "Aucun", "brut": "N", "explication": "Accès à des informations protégées."}, {"code": "I", "nom": "Intégrité", "valeur": "Aucun", "brut": "N", "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:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-406", "nom": "", "url": "https://cwe.mitre.org/data/definitions/406.html"}], "owasp": [{"code": "A07", "nom": "Défaillances d'authentification", "nom_officiel": "Authentication Failures", "slug": "a07-defaillances-d-authentification", "libelle": "A07:2025 Défaillances d'authentification", "url_officielle": "https://top10.owasp.org/2025/A07_2025-Authentication_Failures/"}], "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": "Partiel : contrôle ou informations limités", "brut": "partial"}], "version": "2.0.3", "date": "2025-01-27", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2021-12-28", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2022-08-10", "libelle": "Publication de la vulnérabilité", "qui": "palo_alto"}, {"date": "2022-08-22", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2022-09-12", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2025-01-27", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2026-06-17", "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-2022-0028", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2022-0028", "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-2022-0028", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-0028", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2022-0028", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2022-0028", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Paloaltonetworks", "product": "Pan-os", "ranges": ["de 8.1.0 à 8.1.23 (exclue)", "de 9.0.0 à 9.0.16 (exclue)", "de 9.1.0 à 9.1.14 (exclue)", "de 10.0.0 à 10.0.11 (exclue)", "de 10.1.0 à 10.1.6 (exclue)", "de 10.2.0 à 10.2.2 (exclue)", "8.1.23", "9.0.16", "9.1.14", "10.0.11", "10.1.6", "10.2.2"], "first_unaffected": ["8.1.23", "9.0.16", "9.1.14", "10.0.11", "10.1.6", "10.2.2"], "source": "NVD"}, {"vendor": "Palo Alto Networks", "product": "Cloud NGFW", "ranges": [], "first_unaffected": ["All"], "source": "CVE.org"}, {"vendor": "Palo Alto Networks", "product": "PAN-OS", "ranges": ["de 8.1 à 8.1.23-h1 (exclue)", "de 9.0 à 9.0.16-h3 (exclue)", "de 9.1 à 9.1.14-h4 (exclue)", "de 10.0 à 10.0.11-h1 (exclue)", "de 10.1 à 10.1.6-h6 (exclue)", "de 10.2 à 10.2.2-h2 (exclue)"], "first_unaffected": ["8.1.23-h1", "9.0.16-h3", "9.1.14-h4", "10.0.11-h1", "10.1.6-h6", "10.2.2-h2"], "source": "CVE.org"}, {"vendor": "Palo Alto Networks", "product": "Prisma Access", "ranges": [], "first_unaffected": ["2.1 All", "2.2 All", "3.0 All", "3.1 All"], "source": "CVE.org"}], "notes_kev": ["https://security.paloaltonetworks.com/CVE-2022-0028", "https://nvd.nist.gov/vuln/detail/CVE-2022-0028"]}, "consulted_at": "2026-10-07T06:34:38.429936+00:00"}