{"api_version":"1","generated_at":"2026-04-23T01:31:34+00:00","cve":"CVE-2019-1808","urls":{"html":"https://cve.report/CVE-2019-1808","api":"https://cve.report/api/cve/CVE-2019-1808.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-1808","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-1808"},"summary":{"title":"CVE-2019-1808","description":"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 loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.","state":"PUBLIC","assigner":"psirt@cisco.com","published_at":"2019-05-15 23:29:00","updated_at":"2023-03-24 17:46:00"},"problem_types":["CWE-347"],"metrics":[],"references":[{"url":"http://www.securityfocus.com/bid/108367","name":"108367","refsource":"BID","tags":["Third Party Advisory","VDB Entry"],"title":"Malformed Request","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-spsv","name":"20190515 Cisco MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification Vulnerability","refsource":"CISCO","tags":["Vendor Advisory"],"title":"Cisco MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification 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MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification Vulnerability"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Cisco NX-OS Software","version":{"version_data":[{"affected":"<","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 loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image."}]},"exploit":[{"lang":"eng","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":"6.7","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 MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification Vulnerability","refsource":"CISCO","url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-spsv"},{"refsource":"BID","name":"108367","url":"http://www.securityfocus.com/bid/108367"}]},"source":{"advisory":"cisco-sa-20190515-nxos-spsv","defect":[["CSCvi42248"]],"discovery":"INTERNAL"}},"nvd":{"publishedDate":"2019-05-15 23:29:00","lastModifiedDate":"2023-03-24 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":"A 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The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"1808","Ordinal":"2","NoteData":"2019-05-15","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"1808","Ordinal":"3","NoteData":"2019-05-17","Type":"Other","Title":"Modified"}]}}}