cve-2021-42757
Vulnerability from cvelistv5
Published
2021-12-08 11:01
Modified
2024-08-04 03:38
Summary
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.
Impacted products
FortinetFortinet FortiOS
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:38:50.116Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://fortiguard.com/advisory/FG-IR-21-173"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Fortinet FortiOS",
          "vendor": "Fortinet",
          "versions": [
            {
              "status": "affected",
              "version": "FortiOS before 6.4.7, FortiOS 7.0.0 through 7.0.2"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "remediationLevel": "UNAVAILABLE",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 6.3,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Execute unauthorized code or commands",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-12-08T11:01:11",
        "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "shortName": "fortinet"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://fortiguard.com/advisory/FG-IR-21-173"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@fortinet.com",
          "ID": "CVE-2021-42757",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Fortinet FortiOS",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "FortiOS before 6.4.7, FortiOS 7.0.0 through 7.0.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Fortinet"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "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."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "Low",
            "attackVector": "Local",
            "availabilityImpact": "High",
            "baseScore": 6.3,
            "baseSeverity": "Medium",
            "confidentialityImpact": "High",
            "integrityImpact": "High",
            "privilegesRequired": "High",
            "scope": "Unchanged",
            "userInteraction": "None",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Execute unauthorized code or commands"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://fortiguard.com/advisory/FG-IR-21-173",
              "refsource": "CONFIRM",
              "url": "https://fortiguard.com/advisory/FG-IR-21-173"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
    "assignerShortName": "fortinet",
    "cveId": "CVE-2021-42757",
    "datePublished": "2021-12-08T11:01:11",
    "dateReserved": "2021-10-20T00:00:00",
    "dateUpdated": "2024-08-04T03:38:50.116Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-42757\",\"sourceIdentifier\":\"psirt@fortinet.com\",\"published\":\"2021-12-08T11:15:11.840\",\"lastModified\":\"2024-01-18T15:48:06.043\",\"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:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.0.0\",\"versionEndIncluding\":\"6.0.10\",\"matchCriteriaId\":\"70E9D9A8-EFF1-4ABE-A04D-FD983443DD3A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:fortinet:fortivoice:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.4.0\",\"versionEndIncluding\":\"6.4.4\",\"matchCriteriaId\":\"E8611A25-64A1-4BCE-AA46-E47DFD607CB2\"},{\"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\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading...

Loading...

Loading...
  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.