FKIE_CVE-2019-1691

Vulnerability from fkie_nvd - Published: 2019-02-21 20:29 - Updated: 2024-11-21 04:37
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Summary
A vulnerability in the detection engine of Cisco Firepower Threat Defense Software could allow an unauthenticated, remote attacker to cause the unexpected restart of the SNORT detection engine, resulting in a denial of service (DoS) condition. The vulnerability is due to the incomplete error handling of the SSL or TLS packet header during the connection establishment. An attacker could exploit this vulnerability by sending a crafted SSL or TLS packet during the connection handshake. An exploit could allow the attacker to cause the SNORT detection engine to unexpectedly restart, resulting in a partial DoS condition while the detection engine restarts. Versions prior to 6.2.3.4 are affected.
References
psirt@cisco.comhttp://www.securityfocus.com/bid/107099Third Party Advisory, VDB Entry
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-fpwr-ssltls-dosVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/107099Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-fpwr-ssltls-dosVendor Advisory
Impacted products
Vendor Product Version
cisco firepower_threat_defense *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2D74B9AA-955B-4DE4-9915-4EADCDBA3434",
              "versionEndExcluding": "6.2.3.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the detection engine of Cisco Firepower Threat Defense Software could allow an unauthenticated, remote attacker to cause the unexpected restart of the SNORT detection engine, resulting in a denial of service (DoS) condition. The vulnerability is due to the incomplete error handling of the SSL or TLS packet header during the connection establishment. An attacker could exploit this vulnerability by sending a crafted SSL or TLS packet during the connection handshake. An exploit could allow the attacker to cause the SNORT detection engine to unexpectedly restart, resulting in a partial DoS condition while the detection engine restarts. Versions prior to 6.2.3.4 are affected."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en el motor de detecci\u00f3n del software Firepower Threat Defense de Cisco podr\u00eda permitir a un atacante remoto no autenticado provocar el reinicio inesperado del motor de detecci\u00f3n SNORT, conduciendo a una Denegaci\u00f3n de Servicio (DoS).  Esta vulnerabilidad se debe a la gesti\u00f3n de errores incompleta de la cabecera del paquete SSL o TLS durante el establecimiento de una conexi\u00f3n. Un atacante podr\u00eda explotar esta vulnerabilidad enviando un paquete SSL o TLS manipulado durante el handshake de conexi\u00f3n. Si se explota con \u00e9xito, podr\u00eda permitir que el atacante consiga que el motor de detecci\u00f3n SNORT se reinicie inesperadamente, conduciendo a una condici\u00f3n DoS parcial durante el reinicio del motor de detecci\u00f3n. Las versiones anteriores a la 6.2.3.4 se ven afectadas."
    }
  ],
  "id": "CVE-2019-1691",
  "lastModified": "2024-11-21T04:37:06.627",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
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        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
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        "source": "nvd@nist.gov",
        "type": "Primary",
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          "baseScore": 5.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
          "version": "3.0"
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          "confidentialityImpact": "NONE",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
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        "source": "nvd@nist.gov",
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  },
  "published": "2019-02-21T20:29:00.417",
  "references": [
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      "source": "psirt@cisco.com",
      "tags": [
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        "VDB Entry"
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      "url": "http://www.securityfocus.com/bid/107099"
    },
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      "source": "psirt@cisco.com",
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      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190220-fpwr-ssltls-dos"
    },
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  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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        {
          "lang": "en",
          "value": "CWE-20"
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      "source": "psirt@cisco.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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