CVE-2023-20243

{"id": "CVE-2023-20243", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "ykramarz@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 3.9}]}, "published": "2023-09-06T18:15:08.133", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-radius-dos-W7cNn7gt", "tags": ["Vendor Advisory"], "source": "ykramarz@cisco.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-755"}]}, {"type": "Secondary", "source": "ykramarz@cisco.com", "description": [{"lang": "en", "value": "CWE-399"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the RADIUS message processing feature of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to cause the affected system to stop processing RADIUS packets.\r\n\r This vulnerability is due to improper handling of certain RADIUS accounting requests. An attacker could exploit this vulnerability by sending a crafted authentication request to a network access device (NAD) that uses Cisco ISE for authentication, authorization, and accounting (AAA). This would eventually result in the NAD sending a RADIUS accounting request packet to Cisco ISE. An attacker could also exploit this vulnerability by sending a crafted RADIUS accounting request packet to Cisco ISE directly if the RADIUS shared secret is known. A successful exploit could allow the attacker to cause the RADIUS process to unexpectedly restart, resulting in authentication or authorization timeouts and denying legitimate users access to the network or service. Clients already authenticated to the network would not be affected.\r\n\r Note: To recover the ability to process RADIUS packets, a manual restart of the affected Policy Service Node (PSN) may be required. For more information, see the Details [\"#details\"] section of this advisory."}, {"lang": "es", "value": "Una vulnerabilidad en el procesamiento de mensajes en RADIUS de Cisco Identity Services Engine (ISE) podr\u00eda permitir a un atacante remoto no autenticado causar que el sistema afectado deje de procesar paquetes. Esta vulnerabilidad es debido al manejo inapropiado de determinadas peticiones. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de una petici\u00f3n de autenticaci\u00f3n a un dispositivo de acceso a la red (NAD)que use Cisco ISE para la autenticaci\u00f3n. autorizaci\u00f3n y contabilidad (AAA). Esto eventualmente dar\u00eda como resultado que el NAD env\u00ede un paquete de solicitud de contabilidad RADIUS a Cisco ISE. Un atacante tambi\u00e9n podr\u00eda aprovechar esta vulnerabilidad enviando un paquete de solicitud de contabilidad RADIUS manipulado a Cisco ISE si el secreto compartido de Radius es conocido. Un exploit exitoso podr\u00eda permitir que el atacante haga que el proceso RADIUS se reinicie inesperadamente, lo que provocar\u00eda tiempos de espera de autenticaci\u00f3n o autorizaci\u00f3n y negar\u00eda a los usuarios leg\u00edtimos el acceso a la red o al servicio. Los clientes ya autenticados en la red no se ver\u00edan afectados. Nota: Para recuperar la capacidad de procesar paquetes RADIUS, es posible que sea necesario reiniciar manualmente el nodo de servicio de pol\u00edticas (PSN) afectado. Para obtener m\u00e1s informaci\u00f3n, consulte la secci\u00f3n Detalles [\"#details\"] de este aviso."}], "lastModified": "2024-01-25T17:15:40.503", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.1:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C4DB9726-532F-45CE-81FD-45F2F6C7CE51"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.1:patch1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2E8F0066-0EC0-41FD-80BE-55C4ED5F6B0E"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.1:patch2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1E81F86-7ED6-4D6C-8DAF-09EB2A7BC496"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.1:patch3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5D1765DB-1BEF-4CE9-8B86-B91F709600EB"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.1:patch4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3D1E80EF-C3FD-4F7A-B63D-0EAA5C878B11"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.1:patch5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "095F27EC-5713-4D4F-AD06-57D3DF068B90"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.1:patch6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FEA5210C-E674-4C4B-9EB3-C681C70005B6"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.2:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "36722B6C-64A5-4D00-94E1-442878C37A35"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.2:patch1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7EEEA06A-AD58-48D3-8975-B21A961985B3"}, {"criteria": "cpe:2.3:a:cisco:identity_services_engine:3.2:patch2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ED937BCD-60F7-4555-99D8-B6229214FA73"}], "operator": "OR"}]}], "sourceIdentifier": "ykramarz@cisco.com"}