« Volver al listado

CVE-2019-1695

Estado: ModificadaMedia (6.5)—

A vulnerability in the detection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to send data directly to the kernel of an affected device. The vulnerability exists because the software improperly filters Ethernet frames sent to an affected device. An attacker could exploit this vulnerability by sending crafted packets to the management interface of an affected device. A successful exploit could allow the attacker to bypass the Layer 2 (L2) filters and send data directly to the kernel of the affected device. A malicious frame successfully delivered would make the target device generate a specific syslog entry.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Cisco — Adaptive Security Appliance SoftwareCisco — Secure Firewall Threat Defense

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2019-1695",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2019-1695",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-11-21T18:59:00.717881Z"
        }
      }
    ],
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.1,
          "accessVector": "ADJACENT_NETWORK",
          "vectorString": "AV:A/AC:L/Au:N/C:N/I:C/A:N",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.5,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Secondary",
        "source": "psirt@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 4.3,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "ADJACENT_NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "psirt@cisco.com",
      "affectedData": [
        {
          "vendor": "Cisco",
          "product": "Cisco Adaptive Security Appliance (ASA) Software",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "9.8.4",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "9.9.2.50",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "9.10.1.17",
              "versionType": "custom"
            }
          ]
        },
        {
          "vendor": "Cisco",
          "product": "Cisco Firepower Threat Defense (FTD) Software",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "6.2.3.12",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "6.3.0.3",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-05-03T15:29:01.103",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/108173",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-bypass",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "psirt@cisco.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/108173",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftd-bypass",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "psirt@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the detection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, adjacent attacker to send data directly to the kernel of an affected device. The vulnerability exists because the software improperly filters Ethernet frames sent to an affected device. An attacker could exploit this vulnerability by sending crafted packets to the management interface of an affected device. A successful exploit could allow the attacker to bypass the Layer 2 (L2) filters and send data directly to the kernel of the affected device. A malicious frame successfully delivered would make the target device generate a specific syslog entry."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el motor de detección del software Adaptive Security Appliance (ASA) de Cisco  y el software Firepower Threat Defense (FTD) de Cisco, podría permitir que un atacante adyacente no identificado envíe datos directamente hacia el kernel de un dispositivo afectado. La vulnerabilidad se presenta porque el software filtra incorrectamente las tramas de Ethernet enviadas a un dispositivo afectado. Un atacante podría aprovechar esta vulnerabilidad mediante el envío de paquetes creados a la interfaz de administración de un dispositivo afectado. Una operación con éxito podría permitir al atacante omitir los filtros de Capa 2 (L2) y enviar datos directamente hacia el kernel del dispositivo afectado. Una trama maliciosa entregada con éxito haría que el dispositivo de destino generara una entrada syslog específica."
    }
  ],
  "lastModified": "2026-08-11T19:33:44.513",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3DFE81CB-3B01-4905-A5E0-C770C60B7CDC",
              "versionEndExcluding": "9.8.4"
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "457AB9D1-FD88-4EF5-A675-363A5029AEAD",
              "versionEndExcluding": "6.2.3.12",
              "versionStartIncluding": "6.2.1"
            },
            {
              "criteria": "cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B94C0032-3A17-4993-A3AF-BBFF3B96266A",
              "versionEndExcluding": "6.3.0.3",
              "versionStartIncluding": "6.3.0"
            },
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "ABCD2AF8-97D4-45C6-B80E-D5FA9B719BD5",
              "versionEndExcluding": "9.9.2.50",
              "versionStartIncluding": "9.9"
            },
            {
              "criteria": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B4C6B343-2D4D-4C7E-A59E-629773DD2E60",
              "versionEndExcluding": "9.10.1.17",
              "versionStartIncluding": "9.10"
            }
          ],
          "operator": "OR"
        },
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "52D96810-5F79-4A83-B8CA-D015790FCF72"
            },
            {
              "criteria": "cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "16FE2945-4975-4003-AE48-7E134E167A7F"
            },
            {
              "criteria": "cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "DCE7122A-5AA7-4ECD-B024-E27C9D0CFB7B"
            },
            {
              "criteria": "cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*",
              "vulnerable": false,
              "matchCriteriaId": "976901BF-C52C-4F81-956A-711AF8A60140"
            }
          ],
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com"
}