CVE-2019-1804 (GCVE-0-2019-1804)

Vulnerability from cvelistv5 – Published: 2019-05-03 16:25 – Updated: 2024-11-19 19:08
VLAI?
Summary
A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable.
Severity ?
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version
Cisco Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode 11.0.1b Affected: unspecified , < n/a (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T18:28:42.878Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20190501 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2019-1804",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-19T17:21:20.927627Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-19T19:08:10.858Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode 11.0.1b",
          "vendor": "Cisco",
          "versions": [
            {
              "lessThan": "n/a",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2019-05-01T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable."
        }
      ],
      "exploits": [
        {
          "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-310",
              "description": "CWE-310",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-05-03T16:25:31",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20190501 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey"
        }
      ],
      "source": {
        "advisory": "cisco-sa-20190501-nexus9k-sshkey",
        "defect": [
          [
            "CSCvo80686"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2019-05-01T16:00:00-0700",
          "ID": "CVE-2019-1804",
          "STATE": "PUBLIC",
          "TITLE": "Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode 11.0.1b",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable."
            }
          ]
        },
        "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."
          }
        ],
        "impact": {
          "cvss": {
            "baseScore": "9.8",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-310"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20190501 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-20190501-nexus9k-sshkey",
          "defect": [
            [
              "CSCvo80686"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2019-1804",
    "datePublished": "2019-05-03T16:25:32.005358Z",
    "dateReserved": "2018-12-06T00:00:00",
    "dateUpdated": "2024-11-19T19:08:10.858Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9332pq_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"30DB41FE-EC1D-4116-A4BA-5F578016D38E\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"113772B6-E9D2-4094-9468-3F4E1A87D07D\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_93180yc-ex_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C57C5155-B51A-4FB6-8352-10930C68C83B\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"F70D81F1-8B12-4474-9060-B4934D8A3873\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_93128tx_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E1C8D17B-FC0B-4ACA-B8F3-7D0C74211A62\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"F423E45D-A6DD-4305-9C6A-EAB26293E53A\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_93120tx_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"27BEE2C5-B41C-4C06-BA4B-44736ADF90CE\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"07DE6F63-2C7D-415B-8C34-01EC05C062F3\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_93108tc-ex_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D5B1EEB5-5EA3-4870-B312-3E97DF71128C\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"A90184B3-C82F-4CE5-B2AD-97D5E4690871\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9516_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"EA969704-C381-46F2-9381-A908799C6FD4\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"7E02DC82-0D26-436F-BA64-73C958932B0A\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9508_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"1D905244-4924-4DD7-87E8-76FDB3AAF648\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"DDC2F709-AFBE-48EA-A3A2-DA1134534FB6\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9504_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"07C8F61A-61C1-42EB-88FD-BDCFEBA3CFB2\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"768BE390-5ED5-48A7-9E80-C4DE8BA979B1\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9500_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"B09EE34F-FA8C-42BC-89BD-A162186C8FA7\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"63BE0266-1C00-4D6A-AD96-7F82532ABAA7\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9396tx_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"1EDC87DF-259C-46B5-BCCF-48957BA7D4EC\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"EA022E77-6557-4A33-9A3A-D028E2DB669A\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9396px_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"00629264-0F72-42E7-A4D1-B8C1ADBB417E\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"1BC5293E-F2B4-46DC-85DA-167EA323FCFD\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9372tx_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"2F2F0E62-4135-4E45-BDB1-9C745D46C732\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"49E0371B-FDE2-473C-AA59-47E1269D050F\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nexus_9372px_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"5E5C4F2E-AF6F-4212-892F-E945CFD2C0EA\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"4364ADB9-8162-451D-806A-B98924E6B2CF\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad en la gesti\\u00f3n de claves SSH para el software Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch podr\\u00eda permitir que un atacante remoto no autenticado se conecte al sistema afectado con los privilegios de usuario root. La vulnerabilidad se debe a la presencia de un par de claves SSH predeterminado que est\\u00e1 presente en todos los dispositivos. Un atacante podr\\u00eda explotar esta vulnerabilidad abriendo una conexi\\u00f3n SSH v\\u00eda IPv6 a un dispositivo objetivo utilizando los materiales clave extra\\u00eddos. Un exploit podr\\u00eda permitir al atacante acceder al sistema con los privilegios del usuario root. Esta vulnerabilidad s\\u00f3lo es explotable sobre IPv6; IPv4 no es vulnerable.\"}]",
      "id": "CVE-2019-1804",
      "lastModified": "2024-11-21T04:37:24.863",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}], \"cvssMetricV30\": [{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 9.8, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:C/I:C/A:C\", \"baseScore\": 10.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"COMPLETE\", \"integrityImpact\": \"COMPLETE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 10.0, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2019-05-03T17:29:00.813",
      "references": "[{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-310\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-1188\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-1804\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2019-05-03T17:29:00.813\",\"lastModified\":\"2024-11-21T04:37:24.863\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en la gesti\u00f3n de claves SSH para el software Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch podr\u00eda permitir que un atacante remoto no autenticado se conecte al sistema afectado con los privilegios de usuario root. La vulnerabilidad se debe a la presencia de un par de claves SSH predeterminado que est\u00e1 presente en todos los dispositivos. Un atacante podr\u00eda explotar esta vulnerabilidad abriendo una conexi\u00f3n SSH v\u00eda IPv6 a un dispositivo objetivo utilizando los materiales clave extra\u00eddos. Un exploit podr\u00eda permitir al atacante acceder al sistema con los privilegios del usuario root. Esta vulnerabilidad s\u00f3lo es explotable sobre IPv6; IPv4 no es vulnerable.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV30\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:C/I:C/A:C\",\"baseScore\":10.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"COMPLETE\",\"integrityImpact\":\"COMPLETE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":10.0,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-310\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1188\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9332pq_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"30DB41FE-EC1D-4116-A4BA-5F578016D38E\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"113772B6-E9D2-4094-9468-3F4E1A87D07D\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_93180yc-ex_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C57C5155-B51A-4FB6-8352-10930C68C83B\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F70D81F1-8B12-4474-9060-B4934D8A3873\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_93128tx_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E1C8D17B-FC0B-4ACA-B8F3-7D0C74211A62\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F423E45D-A6DD-4305-9C6A-EAB26293E53A\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_93120tx_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"27BEE2C5-B41C-4C06-BA4B-44736ADF90CE\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07DE6F63-2C7D-415B-8C34-01EC05C062F3\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_93108tc-ex_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D5B1EEB5-5EA3-4870-B312-3E97DF71128C\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A90184B3-C82F-4CE5-B2AD-97D5E4690871\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9516_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EA969704-C381-46F2-9381-A908799C6FD4\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7E02DC82-0D26-436F-BA64-73C958932B0A\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9508_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1D905244-4924-4DD7-87E8-76FDB3AAF648\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DDC2F709-AFBE-48EA-A3A2-DA1134534FB6\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9504_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"07C8F61A-61C1-42EB-88FD-BDCFEBA3CFB2\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"768BE390-5ED5-48A7-9E80-C4DE8BA979B1\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9500_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B09EE34F-FA8C-42BC-89BD-A162186C8FA7\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"63BE0266-1C00-4D6A-AD96-7F82532ABAA7\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9396tx_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1EDC87DF-259C-46B5-BCCF-48957BA7D4EC\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EA022E77-6557-4A33-9A3A-D028E2DB669A\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9396px_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"00629264-0F72-42E7-A4D1-B8C1ADBB417E\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1BC5293E-F2B4-46DC-85DA-167EA323FCFD\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9372tx_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2F2F0E62-4135-4E45-BDB1-9C745D46C732\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"49E0371B-FDE2-473C-AA59-47E1269D050F\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nexus_9372px_firmware:14.0\\\\(3d\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5E5C4F2E-AF6F-4212-892F-E945CFD2C0EA\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4364ADB9-8162-451D-806A-B98924E6B2CF\"}]}]}],\"references\":[{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey\", \"name\": \"20190501 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T18:28:42.878Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2019-1804\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-19T17:21:20.927627Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-19T17:21:55.788Z\"}}], \"cna\": {\"title\": \"Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability\", \"source\": {\"defect\": [[\"CSCvo80686\"]], \"advisory\": \"cisco-sa-20190501-nexus9k-sshkey\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"cvssV3_0\": {\"scope\": \"UNCHANGED\", \"version\": \"3.0\", \"baseScore\": 9.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode 11.0.1b\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"n/a\", \"versionType\": \"custom\"}]}], \"exploits\": [{\"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.\"}], \"datePublic\": \"2019-05-01T00:00:00\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey\", \"name\": \"20190501 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-310\", \"description\": \"CWE-310\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2019-05-03T16:25:31\"}, \"x_legacyV4Record\": {\"impact\": {\"cvss\": {\"version\": \"3.0\", \"baseScore\": \"9.8\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\"}}, \"source\": {\"defect\": [[\"CSCvo80686\"]], \"advisory\": \"cisco-sa-20190501-nexus9k-sshkey\", \"discovery\": \"INTERNAL\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"affected\": \"\u003c\", \"version_value\": \"n/a\", \"version_affected\": \"\u003c\"}]}, \"product_name\": \"Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode 11.0.1b\"}]}, \"vendor_name\": \"Cisco\"}]}}, \"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.\"}], \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-nexus9k-sshkey\", \"name\": \"20190501 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability\", \"refsource\": \"CISCO\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of a default SSH key pair that is present in all devices. An attacker could exploit this vulnerability by opening an SSH connection via IPv6 to a targeted device using the extracted key materials. An exploit could allow the attacker to access the system with the privileges of the root user. This vulnerability is only exploitable over IPv6; IPv4 is not vulnerable.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-310\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2019-1804\", \"STATE\": \"PUBLIC\", \"TITLE\": \"Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability\", \"ASSIGNER\": \"psirt@cisco.com\", \"DATE_PUBLIC\": \"2019-05-01T16:00:00-0700\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2019-1804\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-19T19:08:10.858Z\", \"dateReserved\": \"2018-12-06T00:00:00\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2019-05-03T16:25:32.005358Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.