CVE-2019-1809 (GCVE-0-2019-1809)

Vulnerability from cvelistv5 – Published: 2019-05-15 22:15 – Updated: 2024-11-20 17:19
VLAI?
Summary
A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.
Severity ?
6.4 (Medium)
CVSS:3.0/AV:L/AC:H/PR:H/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
http://www.securityfocus.com/bid/108375 vdb-entryx_refsource_BID
Impacted products
Vendor Product Version
Cisco Cisco NX-OS Software Affected: unspecified , < 8.3(1) (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T18:28:42.815Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20190515 Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb"
          },
          {
            "name": "108375",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/108375"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2019-1809",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-20T16:54:32.981622Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-20T17:19:35.902Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco NX-OS Software",
          "vendor": "Cisco",
          "versions": [
            {
              "lessThan": "8.3(1)",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2019-05-15T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image."
        }
      ],
      "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": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "CWE-347",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-05-20T14:06:08",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20190515 Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb"
        },
        {
          "name": "108375",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/108375"
        }
      ],
      "source": {
        "advisory": "cisco-sa-20190515-nxos-psvb",
        "defect": [
          [
            "CSCvi42264",
            "CSCvj12239"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2019-05-15T16:00:00-0700",
          "ID": "CVE-2019-1809",
          "STATE": "PUBLIC",
          "TITLE": "Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco NX-OS Software",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
                            "version_value": "8.3(1)"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image."
            }
          ]
        },
        "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": "6.4",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-347"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20190515 Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb"
            },
            {
              "name": "108375",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/108375"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-20190515-nxos-psvb",
          "defect": [
            [
              "CSCvi42264",
              "CSCvj12239"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2019-1809",
    "datePublished": "2019-05-15T22:15:23.669524Z",
    "dateReserved": "2018-12-06T00:00:00",
    "dateUpdated": "2024-11-20T17:19:35.902Z",
    "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:nx-os:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"7.3\", \"versionEndExcluding\": \"8.1\\\\(1a\\\\)\", \"matchCriteriaId\": \"B38D0244-062F-45FC-AE05-BDC398E7242C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"8.2\", \"versionEndExcluding\": \"8.3\\\\(1\\\\)\", \"matchCriteriaId\": \"F4863FC5-6578-48DE-838D-E5D2EEFF27B1\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:mds_9706:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"5182CB50-4D32-4835-B1A8-817D989F919F\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:mds_9710:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"36B3B617-7554-4C36-9B41-19AA3BD2F6E9\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:mds_9718:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"B88879A9-A7F5-41E0-8A38-0E09E3FD27F4\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"7.2\", \"versionEndExcluding\": \"7.3\\\\(3\\\\)d1\\\\(1\\\\)\", \"matchCriteriaId\": \"3411F8C2-D65A-46CF-9563-0A9866462491\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"8.0\", \"versionEndExcluding\": \"8.2\\\\(3\\\\)\", \"matchCriteriaId\": \"B8882184-A5B1-4F67-B942-FDEE2FFD43F4\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:7000_10-slot:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"489A59F2-D44D-44ED-844C-E0EF83A23C4F\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:7000_18-slot:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"79689D81-D8F0-4FB1-9B8F-62407474A042\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:7000_4-slot:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"BBA5F539-E8AC-44B5-9E9C-2E35F6CAA22E\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:7000_9-slot:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D01E7A7E-7111-4C89-8EBD-080B0A3E069C\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:7700_10-slot:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"ADCDCAC9-30F2-4EE3-9D02-5AA8BA6A1E99\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:7700_18-slot:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"610E21F4-8188-4B5E-A80F-CFE0F2B9D8A6\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:7700_2-slot:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"83003054-E458-4405-BA7F-A5EA415D296A\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:7700_6-slot:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C7610AAC-D1FE-44A8-9925-31F1CCA8AFEF\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n77-f312ck-26:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"F58B1C42-9150-48C9-9203-A2466FC61261\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n77-f324fq-25:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0AD5DA69-09D9-436A-8FC1-A46626DE2789\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n77-f348xp-23:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E0A9CD4D-4659-402D-BDF8-E5EF86449641\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n77-f430cq-36:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"5C9DC24E-6B6E-496C-8D8C-09B197B0A77E\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n77-m312cq-26l:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9AFA9BC1-3386-4AAE-A1B6-D81761D3EA9B\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n77-m324fq-25l:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9D753638-4BE8-4BF5-A083-F8360003869D\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n77-m348xp-23l:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"8E6AC35C-29B2-42C7-862D-D9AC3461D8D6\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n7k-f248xp-25e:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C4FD83D1-8ECB-4DB8-A6E0-2F795F83B4CF\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n7k-f306ck-25:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9B875911-E742-427B-AE07-C8A5955DEA62\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n7k-f312fq-25:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"CD0C6431-8EB1-4F69-AF28-8F5C55348AF5\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n7k-m202cf-22l:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"AFCA5EC7-9F36-4473-B0DF-4F0F9C680F10\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n7k-m206fq-23l:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"5D0E31D5-9F1D-46EC-824F-352A0098944B\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n7k-m224xp-23l:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E8AD0767-C42B-4BAC-B90C-F4412B661D7A\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n7k-m324fq-25l:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"B6BF05BA-E0CC-45D6-963F-27F0BD7B3C4F\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:n7k-m348xp-25l:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D409BDF3-9F35-4D94-9DF0-7B58A519A005\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_7000_supervisor_1:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"993AFE99-DFC3-4D92-90C8-D3A6495547BC\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_7000_supervisor_2:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"7453E0FA-B05D-4888-AFB0-8FE8B8040DFC\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_7000_supervisor_2e:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"108DB6B5-CB29-477F-84FC-52116F295878\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_7700_supervisor_2e:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"4FBB9435-1CD4-469E-BF16-AD98ADC99AAB\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:nexus_7700_supervisor_3e:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"42ABB93D-2C3A-4029-B545-B638B6C7788E\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"3.1\", \"versionEndExcluding\": \"3.2\\\\(3k\\\\)\", \"matchCriteriaId\": \"631B6866-7CEC-48F8-AC5A-2CBE4DBFF9A7\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:ucs_6248up:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"49112D3F-DFAD-4E71-992B-9E0640FA388C\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:ucs_6296up:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"38A1D8F2-A4A6-4BAC-8326-9F9DE9572FA2\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:ucs_6324:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"B82093C6-B36D-4E4E-AD7F-8C107646B8D9\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:ucs_6332:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E406DDCE-6753-43E9-B6F0-7A038DE84E41\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:ucs_6332-16up:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"054D8EB2-97A3-4725-9DFF-27A4D231D90A\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad en la funci\\u00f3n Image Signature Verification del programa Cisco NX-OS podr\\u00eda permitir que un atacante local autenticado con credenciales de administrador para instalar un parche de programa malicioso en un dispositivo afectado. La vulnerabilidad se debe a la verificaci\\u00f3n incorrecta de las firmas digitales para las im\\u00e1genes de parches. Un atacante podr\\u00eda aprovechar esta vulnerabilidad si crea un parche de programa sin firmar para evitar las comprobaciones de firmas y cargarlo en un dispositivo afectado. Una explotaci\\u00f3n exitosa podr\\u00eda permitir al atacante arrancar una imagen de parche de programa malicioso.\"}]",
      "id": "CVE-2019-1809",
      "lastModified": "2024-11-21T04:37:25.623",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 6.7, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 0.8, \"impactScore\": 5.9}], \"cvssMetricV30\": [{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\", \"baseScore\": 6.4, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 0.5, \"impactScore\": 5.9}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:L/AC:L/Au:N/C:P/I:P/A:P\", \"baseScore\": 4.6, \"accessVector\": \"LOCAL\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 3.9, \"impactScore\": 6.4, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2019-05-15T23:29:01.073",
      "references": "[{\"url\": \"http://www.securityfocus.com/bid/108375\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Broken Link\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/108375\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Broken Link\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb\", \"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-347\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-347\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2019-1809\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2019-05-15T23:29:01.073\",\"lastModified\":\"2024-11-21T04:37:25.623\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en la funci\u00f3n Image Signature Verification del programa Cisco NX-OS podr\u00eda permitir que un atacante local autenticado con credenciales de administrador para instalar un parche de programa malicioso en un dispositivo afectado. La vulnerabilidad se debe a la verificaci\u00f3n incorrecta de las firmas digitales para las im\u00e1genes de parches. Un atacante podr\u00eda aprovechar esta vulnerabilidad si crea un parche de programa sin firmar para evitar las comprobaciones de firmas y cargarlo en un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante arrancar una imagen de parche de programa malicioso.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":6.7,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.8,\"impactScore\":5.9}],\"cvssMetricV30\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":6.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":0.5,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":4.6,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":3.9,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-347\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-347\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.3\",\"versionEndExcluding\":\"8.1\\\\(1a\\\\)\",\"matchCriteriaId\":\"B38D0244-062F-45FC-AE05-BDC398E7242C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.2\",\"versionEndExcluding\":\"8.3\\\\(1\\\\)\",\"matchCriteriaId\":\"F4863FC5-6578-48DE-838D-E5D2EEFF27B1\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:mds_9706:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5182CB50-4D32-4835-B1A8-817D989F919F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:mds_9710:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"36B3B617-7554-4C36-9B41-19AA3BD2F6E9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:mds_9718:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B88879A9-A7F5-41E0-8A38-0E09E3FD27F4\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"7.2\",\"versionEndExcluding\":\"7.3\\\\(3\\\\)d1\\\\(1\\\\)\",\"matchCriteriaId\":\"3411F8C2-D65A-46CF-9563-0A9866462491\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"8.0\",\"versionEndExcluding\":\"8.2\\\\(3\\\\)\",\"matchCriteriaId\":\"B8882184-A5B1-4F67-B942-FDEE2FFD43F4\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:7000_10-slot:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"489A59F2-D44D-44ED-844C-E0EF83A23C4F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:7000_18-slot:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"79689D81-D8F0-4FB1-9B8F-62407474A042\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:7000_4-slot:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BBA5F539-E8AC-44B5-9E9C-2E35F6CAA22E\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:7000_9-slot:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D01E7A7E-7111-4C89-8EBD-080B0A3E069C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:7700_10-slot:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"ADCDCAC9-30F2-4EE3-9D02-5AA8BA6A1E99\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:7700_18-slot:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"610E21F4-8188-4B5E-A80F-CFE0F2B9D8A6\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:7700_2-slot:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"83003054-E458-4405-BA7F-A5EA415D296A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:7700_6-slot:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C7610AAC-D1FE-44A8-9925-31F1CCA8AFEF\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n77-f312ck-26:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F58B1C42-9150-48C9-9203-A2466FC61261\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n77-f324fq-25:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0AD5DA69-09D9-436A-8FC1-A46626DE2789\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n77-f348xp-23:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0A9CD4D-4659-402D-BDF8-E5EF86449641\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n77-f430cq-36:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5C9DC24E-6B6E-496C-8D8C-09B197B0A77E\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n77-m312cq-26l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9AFA9BC1-3386-4AAE-A1B6-D81761D3EA9B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n77-m324fq-25l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9D753638-4BE8-4BF5-A083-F8360003869D\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n77-m348xp-23l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8E6AC35C-29B2-42C7-862D-D9AC3461D8D6\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n7k-f248xp-25e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C4FD83D1-8ECB-4DB8-A6E0-2F795F83B4CF\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n7k-f306ck-25:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9B875911-E742-427B-AE07-C8A5955DEA62\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n7k-f312fq-25:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CD0C6431-8EB1-4F69-AF28-8F5C55348AF5\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n7k-m202cf-22l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AFCA5EC7-9F36-4473-B0DF-4F0F9C680F10\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n7k-m206fq-23l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5D0E31D5-9F1D-46EC-824F-352A0098944B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n7k-m224xp-23l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E8AD0767-C42B-4BAC-B90C-F4412B661D7A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n7k-m324fq-25l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B6BF05BA-E0CC-45D6-963F-27F0BD7B3C4F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:n7k-m348xp-25l:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D409BDF3-9F35-4D94-9DF0-7B58A519A005\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_7000_supervisor_1:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"993AFE99-DFC3-4D92-90C8-D3A6495547BC\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_7000_supervisor_2:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7453E0FA-B05D-4888-AFB0-8FE8B8040DFC\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_7000_supervisor_2e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"108DB6B5-CB29-477F-84FC-52116F295878\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_7700_supervisor_2e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4FBB9435-1CD4-469E-BF16-AD98ADC99AAB\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:nexus_7700_supervisor_3e:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"42ABB93D-2C3A-4029-B545-B638B6C7788E\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"3.1\",\"versionEndExcluding\":\"3.2\\\\(3k\\\\)\",\"matchCriteriaId\":\"631B6866-7CEC-48F8-AC5A-2CBE4DBFF9A7\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:ucs_6248up:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"49112D3F-DFAD-4E71-992B-9E0640FA388C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:ucs_6296up:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"38A1D8F2-A4A6-4BAC-8326-9F9DE9572FA2\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:ucs_6324:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B82093C6-B36D-4E4E-AD7F-8C107646B8D9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:ucs_6332:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E406DDCE-6753-43E9-B6F0-7A038DE84E41\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:ucs_6332-16up:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"054D8EB2-97A3-4725-9DFF-27A4D231D90A\"}]}]}],\"references\":[{\"url\":\"http://www.securityfocus.com/bid/108375\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/108375\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb\",\"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-20190515-nxos-psvb\", \"name\": \"20190515 Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\", \"x_transferred\"]}, {\"url\": \"http://www.securityfocus.com/bid/108375\", \"name\": \"108375\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T18:28:42.815Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2019-1809\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-20T16:54:32.981622Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-20T16:55:25.098Z\"}}], \"cna\": {\"title\": \"Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability\", \"source\": {\"defect\": [[\"CSCvi42264\", \"CSCvj12239\"]], \"advisory\": \"cisco-sa-20190515-nxos-psvb\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"cvssV3_0\": {\"scope\": \"UNCHANGED\", \"version\": \"3.0\", \"baseScore\": 6.4, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco NX-OS Software\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"lessThan\": \"8.3(1)\", \"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\": \"2019-05-15T00:00:00\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-psvb\", \"name\": \"20190515 Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\"]}, {\"url\": \"http://www.securityfocus.com/bid/108375\", \"name\": \"108375\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-347\", \"description\": \"CWE-347\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2019-05-20T14:06:08\"}, \"x_legacyV4Record\": {\"impact\": {\"cvss\": {\"version\": \"3.0\", \"baseScore\": \"6.4\", \"vectorString\": \"CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\"}}, \"source\": {\"defect\": [[\"CSCvi42264\", \"CSCvj12239\"]], \"advisory\": \"cisco-sa-20190515-nxos-psvb\", \"discovery\": \"INTERNAL\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"affected\": \"\u003c\", \"version_value\": \"8.3(1)\", \"version_affected\": \"\u003c\"}]}, \"product_name\": \"Cisco NX-OS Software\"}]}, \"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-20190515-nxos-psvb\", \"name\": \"20190515 Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability\", \"refsource\": \"CISCO\"}, {\"url\": \"http://www.securityfocus.com/bid/108375\", \"name\": \"108375\", \"refsource\": \"BID\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-347\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2019-1809\", \"STATE\": \"PUBLIC\", \"TITLE\": \"Cisco NX-OS Software Patch Signature Verification Bypass Vulnerability\", \"ASSIGNER\": \"psirt@cisco.com\", \"DATE_PUBLIC\": \"2019-05-15T16:00:00-0700\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2019-1809\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-20T17:19:35.902Z\", \"dateReserved\": \"2018-12-06T00:00:00\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2019-05-15T22:15:23.669524Z\", \"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.