CVE-2019-1858 (GCVE-0-2019-1858)

Vulnerability from cvelistv5 – Published: 2019-05-16 01:20 – Updated: 2024-11-19 19:07
VLAI
Title
Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability
Summary
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause the SNMP application to leak system memory, which could cause an affected device to restart unexpectedly. The vulnerability is due to improper error handling when processing inbound SNMP packets. An attacker could exploit this vulnerability by sending multiple crafted SNMP packets to an affected device. A successful exploit could allow the attacker to cause the SNMP application to leak system memory because of an improperly handled error condition during packet processing. Over time, this memory leak could cause the SNMP application to restart multiple times, leading to a system-level restart and a denial of service (DoS) condition.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-19 17:24 UTC
CWE
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
http://www.securityfocus.com/bid/108358 vdb-entryx_refsource_BID
Impacted products
Vendor Product Version CPE status
Cisco Cisco Firepower Extensible Operating System (FXOS) Affected: unspecified , < n/a (custom)
guessed Create a notification for this product.
Date Public
2019-05-15 00:00
Show details on NVD website

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          "value": "Una vulnerabilidad en el procesador de paquetes de entrada del Protocolo de administraci\u00f3n de red simple (SNMP) de los programas FXOS y  NX-OS de Cisco podr\u00eda permitir que un atacante remoto no autenticado provoque que la aplicaci\u00f3n SNMP pierda memoria en el sistema, lo que podr\u00eda hacer que un dispositivo afectado se reinicie inesperadamente . La vulnerabilidad se debe a un manejo incorrecto de errores al procesar paquetes SNMP entrantes. Un atacante podr\u00eda aprovechar esta vulnerabilidad enviando m\u00faltiples paquetes SNMP dise\u00f1ados a un dispositivo afectado. Un aprovechamiento exitoso podr\u00eda permitir que el atacante haga que la aplicaci\u00f3n SNMP pierda memoria del sistema debido a una condici\u00f3n de error manejada incorrectamente durante el procesamiento del paquete. Con el tiempo, esta p\u00e9rdida de memoria podr\u00eda hacer que la aplicaci\u00f3n SNMP se reinicie varias veces, lo que lleva a un reinicio a nivel del sistema y una condici\u00f3n de denegaci\u00f3n de servicio (DoS)."
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      "id": "CVE-2019-1858",
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            "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
            "shortName": "cisco"
          },
          "references": [
            {
              "name": "20190515 Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability",
              "tags": [
                "vendor-advisory",
                "x_refsource_CISCO"
              ],
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-snmp-dos"
            },
            {
              "name": "108358",
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                "x_refsource_BID"
              ],
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            }
          ],
          "source": {
            "advisory": "cisco-sa-20190515-nxos-snmp-dos",
            "defect": [
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                "CSCvn19457",
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                "CSCvn19464",
                "CSCvn19465",
                "CSCvn19468",
                "CSCvn19483"
              ]
            ],
            "discovery": "INTERNAL"
          },
          "title": "Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability",
          "x_legacyV4Record": {
            "CVE_data_meta": {
              "ASSIGNER": "psirt@cisco.com",
              "DATE_PUBLIC": "2019-05-15T16:00:00-0700",
              "ID": "CVE-2019-1858",
              "STATE": "PUBLIC",
              "TITLE": "Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability"
            },
            "affects": {
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                  {
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                        {
                          "product_name": "Cisco Firepower Extensible Operating System (FXOS)",
                          "version": {
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                              {
                                "affected": "\u003c",
                                "version_affected": "\u003c",
                                "version_value": "n/a"
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            "data_format": "MITRE",
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            "data_version": "4.0",
            "description": {
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                }
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            },
            "exploit": [
              {
                "lang": "en",
                "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
                "version": "3.0"
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            },
            "problemtype": {
              "problemtype_data": [
                {
                  "description": [
                    {
                      "lang": "eng",
                      "value": "CWE-20"
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                  "CSCvn19468",
                  "CSCvn19483"
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      "cveMetadata": {
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "assignerShortName": "cisco",
        "cveId": "CVE-2019-1858",
        "datePublished": "2019-05-16T01:20:22.764Z",
        "dateReserved": "2018-12-06T00:00:00.000Z",
        "dateUpdated": "2024-11-19T19:07:01.018Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • 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.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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