CVE-2019-1810

Published May 15, 2019

Last updated 2 years ago

Overview

Description: A vulnerability in the Image Signature Verification feature used in an NX-OS CLI command in Cisco Nexus 3000 Series and 9000 Series Switches 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. Note: If the device has not been patched for the vulnerability previously disclosed in the Cisco Security Advisory cisco-sa-20190306-nxos-sig-verif, a successful exploit could allow the attacker to boot a malicious software image.
Source: ykramarz@cisco.com
NVD status: Analyzed

Hype score: Not currently trending

Risk scores

CVSS 3.1

Type: Primary
Base score: 6.7
Impact score: 5.9
Exploitability score: 0.8
Vector string: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Severity: MEDIUM

CVSS 3.0

Type: Secondary
Base score: 6.7
Impact score: 5.9
Exploitability score: 0.8
Vector string: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Severity: MEDIUM

CVSS 2.0

Type: Primary
Base score: 4.6
Impact score: 6.4
Exploitability score: 3.9
Vector string: AV:L/AC:L/Au:N/C:P/I:P/A:P

Weaknesses

nvd@nist.gov: CWE-347
ykramarz@cisco.com: CWE-347

Configurations

[
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "210189FB-C22C-4257-90F8-15A4423F7BF9",
            "versionEndExcluding": "7.0\\(3\\)i7\\(5\\)",
            "versionStartIncluding": "6.1\\(2\\)i3\\(4\\)"
          },
          {
            "criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "59A1E5DE-BF89-49F3-87C0-0C2A51F28CFA",
            "versionEndExcluding": "9.2\\(2\\)",
            "versionStartIncluding": "7.0\\(3\\)i7\\(5a\\)"
          }
        ],
        "operator": "OR"
      },
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:h:cisco:n3k-c3164q:-:*:*:*:*:*:*:*",
            "vulnerable": false,
            "matchCriteriaId": "D37D6E65-9F11-4C3C-857B-8509B276467A"
          }
        ],
        "operator": "OR"
      }
    ],
    "operator": "AND"
  },
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "CAEE89CF-815F-4A7B-B17B-9125AA04A033",
            "versionEndExcluding": "7.0\\(3\\)i7\\(1\\)",
            "versionStartIncluding": "7.0\\(3\\)i3\\(1\\)"
          },
          {
            "criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "CF2CCA0F-9A2E-4E5A-8A62-5F8F7ABFC9BD",
            "versionEndExcluding": "9.2\\(1\\)",
            "versionStartIncluding": "7.0\\(3\\)i7\\(2\\)"
          }
        ],
        "operator": "OR"
      },
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:h:cisco:n3k-c3232c:-:*:*:*:*:*:*:*",
            "vulnerable": false,
            "matchCriteriaId": "F7916925-6E0A-41DB-B902-7028EB579013"
          }
        ],
        "operator": "OR"
      }
    ],
    "operator": "AND"
  },
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "BB455C80-FB82-4AAF-A63E-A3E23E19E73B",
            "versionEndExcluding": "7.0\\(3\\)i7\\(5\\)",
            "versionStartIncluding": "7.0\\(3\\)i4\\(1\\)"
          },
          {
            "criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "59A1E5DE-BF89-49F3-87C0-0C2A51F28CFA",
            "versionEndExcluding": "9.2\\(2\\)",
            "versionStartIncluding": "7.0\\(3\\)i7\\(5a\\)"
          }
        ],
        "operator": "OR"
      },
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:h:cisco:n9k-c92304qc:-:*:*:*:*:*:*:*",
            "vulnerable": false,
            "matchCriteriaId": "876304F4-4CE5-45B8-ADF5-2523319D05BB"
          }
        ],
        "operator": "OR"
      }
    ],
    "operator": "AND"
  },
  {
    "nodes": [
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "8EF1BA94-CF4C-4615-9514-161890C3E8CC",
            "versionEndExcluding": "7.0\\(3\\)i7\\(5\\)",
            "versionStartIncluding": "7.0\\(3\\)i4\\(2\\)"
          },
          {
            "criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*",
            "vulnerable": true,
            "matchCriteriaId": "59A1E5DE-BF89-49F3-87C0-0C2A51F28CFA",
            "versionEndExcluding": "9.2\\(2\\)",
            "versionStartIncluding": "7.0\\(3\\)i7\\(5a\\)"
          }
        ],
        "operator": "OR"
      },
      {
        "negate": false,
        "cpeMatch": [
          {
            "criteria": "cpe:2.3:h:cisco:n9k-c9232c:-:*:*:*:*:*:*:*",
            "vulnerable": false,
            "matchCriteriaId": "2A9C0219-7EDC-40FD-A66B-24A92993F692"
          }
        ],
        "operator": "OR"
      }
    ],
    "operator": "AND"
  }
]

Overview

Social media

Risk scores

CVSS 3.1

CVSS 3.0

CVSS 2.0

Weaknesses

Configurations

References