FKIE_CVE-2019-1951

Vulnerability from fkie_nvd - Published: 2019-08-08 08:15 - 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:L/A:N
Summary
A vulnerability in the packet filtering features of Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a target device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet in the network.
References
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypassVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypassVendor Advisory
Impacted products
Vendor Product Version
cisco sd-wan_firmware *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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              "criteria": "cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EEB9E49A-5972-4F6E-B61A-002CC1EA112D",
              "versionEndIncluding": "19.1.0",
              "vulnerable": true
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          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the packet filtering features of Cisco SD-WAN Solution could allow an unauthenticated, remote attacker to bypass L3 and L4 traffic filters. The vulnerability is due to improper traffic filtering conditions on an affected device. An attacker could exploit this vulnerability by crafting a malicious TCP packet with specific characteristics and sending it to a target device. A successful exploit could allow the attacker to bypass the L3 and L4 traffic filters and inject an arbitrary packet in the network."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en las funcionalidades de filtrado de paquete de SD-WAN Solution de Cisco, podr\u00eda permitir a un atacante remoto no autenticado omitir los filtros de tr\u00e1fico L3 y L4. La vulnerabilidad es debido a condiciones de filtrado de tr\u00e1fico inapropiadas en un dispositivo afectado. Un atacante podr\u00eda explotar esta vulnerabilidad dise\u00f1ando un paquete TCP malicioso con caracter\u00edsticas espec\u00edficas y envi\u00e1ndolo a un dispositivo de destino. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante omitir los filtros de tr\u00e1fico L3 y L4 e inyectar un paquete arbitrario en la red."
    }
  ],
  "id": "CVE-2019-1951",
  "lastModified": "2024-11-21T04:37:45.270",
  "metrics": {
    "cvssMetricV2": [
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
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          "baseScore": 5.8,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
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          "privilegesRequired": "NONE",
          "scope": "CHANGED",
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          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
          "version": "3.0"
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        "impactScore": 1.4,
        "source": "psirt@cisco.com",
        "type": "Secondary"
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    "cvssMetricV31": [
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          "attackComplexity": "LOW",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
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  "published": "2019-08-08T08:15:12.273",
  "references": [
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      "tags": [
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      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypass"
    },
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      "tags": [
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      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-sd-wan-bypass"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
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}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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