{ "id": "CVE-2021-42757", "sourceIdentifier": "psirt@fortinet.com", "published": "2021-12-08T11:15:11.840", "lastModified": "2021-12-09T17:41:46.150", "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-120" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0.0", "versionEndIncluding": "7.0.2", "matchCriteriaId": "766B0D16-EA7D-4067-9245-B9449C5694BA" }, { "vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0.0", "versionEndIncluding": "7.0.2", "matchCriteriaId": "421CD1AB-234E-483F-9E0C-E7420A0CAC87" }, { "vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.0", "versionEndIncluding": "6.4.1", "matchCriteriaId": "587A849D-478A-4AD3-BD57-E66EA9ABC29F" }, { "vulnerable": true, "criteria": "cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0.0", "versionEndIncluding": "7.0.2", "matchCriteriaId": "7B74980A-E2B6-4D3D-9ECD-919B927E30C2" } ] } ] } ], "references": [ { "url": "https://fortiguard.com/advisory/FG-IR-21-173", "source": "psirt@fortinet.com", "tags": [ "Vendor Advisory" ] } ] }