{
  "id": "CVE-2021-42757",
  "sourceIdentifier": "psirt@fortinet.com",
  "published": "2021-12-08T11:15:11.840",
  "lastModified": "2023-08-29T19:49:23.853",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments."
    },
    {
      "lang": "es",
      "value": "Un desbordamiento de b\u00fafer [CWE-121] en la biblioteca del cliente TFTP de FortiOS versiones anteriores a 6.4.7 y FortiOS versiones 7.0.0 hasta 7.0.2, puede permitir a un atacante local autenticado lograr una ejecuci\u00f3n de c\u00f3digo arbitrario por medio de argumentos de l\u00ednea de comandos especialmente dise\u00f1ados"
    }
  ],
  "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",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.9
      },
      {
        "source": "psirt@fortinet.com",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 0.8,
        "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",
          "accessVector": "LOCAL",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.6
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.0.0",
              "versionEndIncluding": "6.1.5",
              "matchCriteriaId": "D6DD5253-F76E-4799-BB45-79D7B7ACFFB1"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.2.0",
              "versionEndIncluding": "6.2.2",
              "matchCriteriaId": "075C4223-7586-4799-AFA8-7B578BD144B5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.0.0",
              "versionEndIncluding": "6.4.7",
              "matchCriteriaId": "CF9AE101-566A-4460-AA97-18288BBD7639"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.0",
              "versionEndIncluding": "7.0.2",
              "matchCriteriaId": "CCEB8E5F-BBF2-4E6E-91C6-AA47E2CAD022"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.4.0",
              "versionEndIncluding": "6.2.7",
              "matchCriteriaId": "3E2DC5CE-ED48-48B7-8654-7B29A65A7454"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.4.0",
              "versionEndIncluding": "6.4.6",
              "matchCriteriaId": "C0A5C345-7055-4F18-AE77-FF1DBE41AB89"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.0",
              "versionEndIncluding": "7.0.2",
              "matchCriteriaId": "43038EC9-6FD3-488C-8CA3-8B4A705C3E11"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.0.0",
              "versionEndIncluding": "6.4.7",
              "matchCriteriaId": "958C238F-B3DD-41A7-801D-0C39143A5E09"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.0",
              "versionEndIncluding": "7.0.2",
              "matchCriteriaId": "7C5772DB-7F52-479C-914D-778552395990"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortindr:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.1.0",
              "versionEndIncluding": "1.5.2",
              "matchCriteriaId": "F49E4A60-2FA0-4298-BF2E-53C86AF21BEC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortios-6k7k:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "6.2.8",
              "matchCriteriaId": "BEE493CA-7BE8-454A-82FD-11DB82D8FC3A"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortios-6k7k:6.4.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "59BD8EE9-6F94-4EA5-B22B-1B446A15F2A1"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortios-6k7k:6.4.6:*:*:*:*:*:*:*",
              "matchCriteriaId": "50BDB150-8E02-427D-A9FC-C7C3C90F0584"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiportal:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.0.0",
              "versionEndIncluding": "6.0.10",
              "matchCriteriaId": "9D4A0E2F-41C7-4AFB-AC6D-83E7B1A5FC70"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.0.0",
              "versionEndIncluding": "2.0.7",
              "matchCriteriaId": "CEBD9074-C3A5-437E-AC44-C41E4B001980"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiproxy:7.0.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "D909C90B-E136-4E8E-B551-FE0369172C1E"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiproxy:7.0.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "BBCB4E87-0AEC-487E-8FAD-E8F647DA21D5"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortivoice:*:*:*:*:entreprise:*:*:*",
              "versionStartIncluding": "6.0.0",
              "versionEndIncluding": "6.0.10",
              "matchCriteriaId": "09D2F101-1B67-454C-B21B-28C86F8569FC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortivoice:*:*:*:*:entreprise:*:*:*",
              "versionStartIncluding": "6.4.0",
              "versionEndIncluding": "6.4.4",
              "matchCriteriaId": "CB5B77BB-A4A5-4E46-9FF6-A8686570E0D1"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.0.0",
              "versionEndIncluding": "6.3.16",
              "matchCriteriaId": "1FEA2E8B-78B6-40AA-9201-BDF4838950CC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiweb:6.4.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "74A92A08-E6F6-4522-A6DA-061950AD3525"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:fortinet:fortiweb:6.4.1:*:*:*:*:*:*:*",
              "matchCriteriaId": "A6A3D2C4-C3FA-4E12-9156-DAFEA4E00BCC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.0.0",
              "versionEndIncluding": "6.0.13",
              "matchCriteriaId": "BE1C5491-6C94-48A9-8D59-5162E576E54A"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.2.0",
              "versionEndIncluding": "6.2.9",
              "matchCriteriaId": "C4C0308D-8E52-456B-BFC2-62D4C1E9BDC3"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.4.0",
              "versionEndIncluding": "6.4.7",
              "matchCriteriaId": "D183D979-7F73-4D02-91B7-D0C93DE55A8F"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.0",
              "versionEndIncluding": "7.0.2",
              "matchCriteriaId": "F2E9D423-721A-482B-BA6B-52E4D8C07C58"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fortinet:fortirecorder_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.6.0",
              "versionEndIncluding": "6.0.10",
              "matchCriteriaId": "D3E33B56-1975-4B78-A157-E0EADB3BC1B7"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fortinet:fortirecorder_firmware:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.4.0",
              "versionEndIncluding": "6.4.2",
              "matchCriteriaId": "1CB7DEA7-E461-43B0-98EB-CE436DE87D98"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fortinet:fortiswitch:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "6.0.0",
              "versionEndIncluding": "6.4.9",
              "matchCriteriaId": "C6E5A33E-F744-4CC0-ABA0-D1734845AFBB"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:fortinet:fortiswitch:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "7.0.0",
              "versionEndIncluding": "7.0.3",
              "matchCriteriaId": "BB3C99AC-DCA1-44A0-9671-F424109A6038"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://fortiguard.com/advisory/FG-IR-21-173",
      "source": "psirt@fortinet.com",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}