CVE-2019-1813 (GCVE-0-2019-1813)

Vulnerability from cvelistv5 – Published: 2019-05-15 22:20 – 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 image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device.
Severity ?
6.7 (Medium)
CVSS:3.0/AV:L/AC:L/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/108425 vdb-entryx_refsource_BID
Impacted products
Vendor Product Version
Cisco Cisco NX-OS Software Affected: unspecified , < 8.3(1) (custom)
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      "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 image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad en la funci\\u00f3n Image Signature Verification del programa NX-OS de Cisco podr\\u00eda permitir que un atacante local autenticado con credenciales de administrador para instalar una imagen de programa malintencionado en un dispositivo afectado. La vulnerabilidad se debe a que las firmas digitales del programa no se verifican correctamente durante la ejecuci\\u00f3n del comando CLI. Un atacante podr\\u00eda aprovechar esta vulnerabilidad para instalar una imagen de programa sin firmar en un dispositivo afectado.\"}]",
      "id": "CVE-2019-1813",
      "lastModified": "2024-11-21T04:37:26.217",
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      "published": "2019-05-15T23:29:01.357",
      "references": "[{\"url\": \"http://www.securityfocus.com/bid/108425\", \"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-sisv2\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/108425\", \"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-sisv2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
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An attacker could exploit this vulnerability to install an unsigned software image on an affected device.\"}]}, \"exploit\": [{\"lang\": \"en\", \"value\": \"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.\"}], \"impact\": {\"cvss\": {\"baseScore\": \"6.7\", \"vectorString\": \"CVSS:3.0/AV:L/AC:L/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 CLI Command Software Image Signature Verification Vulnerabilities\", \"refsource\": \"CISCO\", \"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2\"}, {\"name\": \"108425\", \"refsource\": \"BID\", \"url\": \"http://www.securityfocus.com/bid/108425\"}]}, \"source\": {\"advisory\": \"cisco-sa-20190515-nxos-sisv2\", \"defect\": [[\"CSCvj14093\", \"CSCvj14106\", \"CSCvj14182\", \"CSCvk53125\", \"CSCvk53227\", \"CSCvk53256\"]], \"discovery\": \"INTERNAL\"}}}, \"adp\": [{\"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T18:28:42.901Z\"}, \"title\": \"CVE Program Container\", \"references\": [{\"name\": \"20190515 Cisco NX-OS CLI Command Software Image Signature Verification Vulnerabilities\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\", \"x_transferred\"], \"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-sisv2\"}, {\"name\": \"108425\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\", \"x_transferred\"], \"url\": \"http://www.securityfocus.com/bid/108425\"}]}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2019-1813\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-20T16:54:29.095234Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-20T16:55:22.600Z\"}}]}",
      "cveMetadata": "{\"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"assignerShortName\": \"cisco\", \"cveId\": \"CVE-2019-1813\", \"datePublished\": \"2019-05-15T22:20:16.342103Z\", \"dateReserved\": \"2018-12-06T00:00:00\", \"dateUpdated\": \"2024-11-20T17:19:18.285Z\", \"state\": \"PUBLISHED\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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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.