Show plain JSON{"id": "CVE-2017-3859", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": true, "impactScore": 6.9, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2017-03-22T19:59:00.370", "references": [{"url": "http://www.securityfocus.com/bid/97008", "tags": ["Third Party Advisory", "VDB Entry"], "source": "ykramarz@cisco.com"}, {"url": "http://www.securitytracker.com/id/1038104", "source": "ykramarz@cisco.com"}, {"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170322-ztp", "tags": ["Vendor Advisory"], "source": "ykramarz@cisco.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-134"}]}, {"type": "Secondary", "source": "ykramarz@cisco.com", "description": [{"lang": "en", "value": "CWE-134"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the DHCP code for the Zero Touch Provisioning feature of Cisco ASR 920 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a format string vulnerability when processing a crafted DHCP packet for Zero Touch Provisioning. An attacker could exploit this vulnerability by sending a specially crafted DHCP packet to an affected device. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition. This vulnerability affects Cisco ASR 920 Series Aggregation Services Routers that are running an affected release of Cisco IOS XE Software (3.13 through 3.18) and are listening on the DHCP server port. By default, the devices do not listen on the DHCP server port. Cisco Bug IDs: CSCuy56385."}, {"lang": "es", "value": "Una vulnerabilidad en el c\u00f3digo DHCP para la funcionalidad Zero Touch Provisioning de Cisco ASR 920 Series Aggregation Services Routers podr\u00eda permitir a atacantes remotos no autenticados hacer que un dispositivo afectado vuelva a cargar. La vulnerabilidad es debida a una vulnerabilidad de formato de cadena cuando procesa un paquete DHCP manipulado para Zero Touch Provisioning. Un atacante podr\u00eda explotar esta vulnerabilidad enviando un paquete DHCP especialmente manipulado a un dispositivo afectado. Una explotac\u00f3n podr\u00eda permitir al atacante hacer que el dispositivo se volviera a cargar, dando como resultado una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad afecta a los enrutadores de servicios de agregaci\u00f3n de la serie ASR 920 de Cisco que ejecutan una versi\u00f3n afectada del software Cisco IOS XE (3.13 en versiones hasta 3.18) y est\u00e1n escuchando en el puerto del servidor DHCP. De forma predeterminada, los dispositivos no escuchan en el puerto del servidor DHCP. ID de bugs de Cisco: CSCuy56385."}], "lastModified": "2017-07-12T01:29:16.317", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xe:3.13.4s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7E70C455-E41C-4B17-847A-5F4281139252"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:3.13.5as:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3DD0A60B-6848-4B9A-B11D-2C2952D2D48C"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:3.13.5s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "64A07329-3A7D-4483-AE69-4786FEB23D92"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:3.13.6as:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F84E4463-DB0F-4B06-B403-B3606B386F02"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:3.13.6s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "665ACEAC-AE81-40F7-8A01-E8DB9DD7DD7A"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:3.14.3s:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "579C9E7F-6AE4-4DF5-ABCF-DB390E4669E6"}, 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