CVE-2019-1749 (GCVE-0-2019-1749)

Vulnerability from cvelistv5 – Published: 2019-03-27 23:55 – Updated: 2024-09-16 16:48
VLAI?
Summary
A vulnerability in the ingress traffic validation of Cisco IOS XE Software for Cisco Aggregation Services Router (ASR) 900 Route Switch Processor 3 (RSP3) could allow an unauthenticated, adjacent attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the software insufficiently validates ingress traffic on the ASIC used on the RSP3 platform. An attacker could exploit this vulnerability by sending a malformed OSPF version 2 (OSPFv2) message to an affected device. A successful exploit could allow the attacker to cause a reload of the iosd process, triggering a reload of the affected device and resulting in a DoS condition.
Severity ?
7.4 (High)
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
Assigner
References
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
http://www.securityfocus.com/bid/107615 vdb-entryx_refsource_BID
Impacted products
Vendor Product Version
Cisco Cisco IOS XE Software Affected: 3.13.6aS
Affected: 3.16.0aS
Affected: 3.16.1aS
Affected: 3.16.2aS
Affected: 3.16.3aS
Affected: 3.16.4S
Affected: 3.16.4bS
Affected: 3.16.4gS
Affected: 3.16.5S
Affected: 3.16.4cS
Affected: 3.16.4dS
Affected: 3.16.4eS
Affected: 3.16.6S
Affected: 3.16.5aS
Affected: 3.16.7S
Affected: 3.16.6bS
Affected: 3.16.7bS
Affected: 3.16.8S
Affected: 3.17.0S
Affected: 3.17.1S
Affected: 3.17.2S
Affected: 3.17.3S
Affected: 3.17.4S
Affected: 16.5.1
Affected: 16.5.2
Affected: 16.5.3
Affected: 3.18.0S
Affected: 3.18.1S
Affected: 3.18.2S
Affected: 3.18.3S
Affected: 3.18.4S
Affected: 3.18.0SP
Affected: 3.18.1SP
Affected: 3.18.1gSP
Affected: 3.18.1bSP
Affected: 3.18.2SP
Affected: 3.18.1hSP
Affected: 3.18.1iSP
Affected: 3.18.3SP
Affected: 3.18.4SP
Affected: 16.6.1
Affected: 16.6.2
Affected: 16.6.3
Affected: 16.6.4
Affected: 16.7.1
Affected: 16.7.2
Affected: 16.8.1
Affected: 16.8.1b
Affected: 16.8.1c
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability in the ingress traffic validation of Cisco IOS XE Software for Cisco Aggregation Services Router (ASR) 900 Route Switch Processor 3 (RSP3) could allow an unauthenticated, adjacent attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the software insufficiently validates ingress traffic on the ASIC used on the RSP3 platform. An attacker could exploit this vulnerability by sending a malformed OSPF version 2 (OSPFv2) message to an affected device. A successful exploit could allow the attacker to cause a reload of the iosd process, triggering a reload of the affected device and resulting in a DoS condition.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad en la validaci\\u00f3n del tr\\u00e1fico entrante del software Cisco IOS XE para Cisco Aggregation Services Router (ASR) 900 Route Switch Processor 3 (RSP3) podr\\u00eda permitir que un atacante adyacente no autenticado desencadene la recarga de un dispositivo afectado, lo que resulta en una condici\\u00f3n de denegaci\\u00f3n de servicio (DoS). La vulnerabilidad existe debido a que el software no valida lo suficiente el tr\\u00e1fico entrante en el ASIC empleado en la plataforma RSP3. Un atacante podr\\u00eda explotar esta vulnerabilidad enviando un mensaje OSPF versi\\u00f3n 2 (OSPFv2) mal formado a un dispositivo afectado. Su explotaci\\u00f3n con \\u00e9xito podr\\u00eda permitir que el atacante provoque la recarga del proceso iosd, desencadenando la recarga del dispositivo afectado y resultando en una condici\\u00f3n de denegaci\\u00f3n de servicio (DoS).\"}]",
      "id": "CVE-2019-1749",
      "lastModified": "2024-11-21T04:37:16.703",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\", \"baseScore\": 7.4, \"baseSeverity\": \"HIGH\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 4.0}], \"cvssMetricV30\": [{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H\", \"baseScore\": 7.4, \"baseSeverity\": \"HIGH\", \"attackVector\": \"ADJACENT_NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 4.0}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:A/AC:L/Au:N/C:N/I:N/A:C\", \"baseScore\": 6.1, \"accessVector\": \"ADJACENT_NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 6.5, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2019-03-28T00:29:00.717",
      "references": "[{\"url\": \"http://www.securityfocus.com/bid/107615\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-rsp3-ospf\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/107615\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-rsp3-ospf\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\", \"Vendor Advisory\"]}]",
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-1749\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2019-03-28T00:29:00.717\",\"lastModified\":\"2024-11-21T04:37:16.703\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the ingress traffic validation of Cisco IOS XE Software for Cisco Aggregation Services Router (ASR) 900 Route Switch Processor 3 (RSP3) could allow an unauthenticated, adjacent attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability exists because the software insufficiently validates ingress traffic on the ASIC used on the RSP3 platform. An attacker could exploit this vulnerability by sending a malformed OSPF version 2 (OSPFv2) message to an affected device. A successful exploit could allow the attacker to cause a reload of the iosd process, triggering a reload of the affected device and resulting in a DoS condition.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en la validaci\u00f3n del tr\u00e1fico entrante del software Cisco IOS XE para Cisco Aggregation Services Router (ASR) 900 Route Switch Processor 3 (RSP3) podr\u00eda permitir que un atacante adyacente no autenticado desencadene la recarga de un dispositivo afectado, lo que resulta en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). La vulnerabilidad existe debido a que el software no valida lo suficiente el tr\u00e1fico entrante en el ASIC empleado en la plataforma RSP3. Un atacante podr\u00eda explotar esta vulnerabilidad enviando un mensaje OSPF versi\u00f3n 2 (OSPFv2) mal formado a un dispositivo afectado. Su explotaci\u00f3n con \u00e9xito podr\u00eda permitir que el atacante provoque la recarga del proceso iosd, desencadenando la recarga del dispositivo afectado y resultando en una condici\u00f3n de denegaci\u00f3n de servicio 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Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-rsp3-ospf\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/107615\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-rsp3-ospf\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}"
  }
}


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Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.