{ "id": "CVE-2021-42756", "sourceIdentifier": "psirt@fortinet.com", "published": "2023-02-16T19:15:11.500", "lastModified": "2023-02-24T19:58:09.447", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 3.9, "impactScore": 5.9 }, { "source": "psirt@fortinet.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 3.9, "impactScore": 5.9 } ] }, "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:fortiweb:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6.0", "versionEndExcluding": "6.0.8", "matchCriteriaId": "D7C64AF2-21C5-4763-BF18-67B2D3D01614" }, { "vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.0", "versionEndExcluding": "6.1.3", "matchCriteriaId": "9EFA8AB9-2777-471C-A1DA-635BDACE2F10" }, { "vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2.0", "versionEndExcluding": "6.2.7", "matchCriteriaId": "919112F8-1479-45F0-BE4D-91112143D2AF" }, { "vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3.0", "versionEndExcluding": "6.3.17", "matchCriteriaId": "0B1B7CFD-96E5-40EA-9CBC-48D0255081BD" }, { "vulnerable": true, "criteria": "cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4.0", "versionEndIncluding": "6.4.2", "matchCriteriaId": "F6B93ABE-8620-4253-83C0-3D2228D20118" } ] } ] } ], "references": [ { "url": "https://fortiguard.com/psirt/FG-IR-21-186", "source": "psirt@fortinet.com", "tags": [ "Vendor Advisory" ] } ] }