CVE-2021-45468

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:imperva:web_application_firewall:*:*:*:*:*:*:*:*", "matchCriteriaId": "5418199D-4B2D-4019-AA2E-E97F9A89EA85", "versionEndExcluding": "2021-12-23", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Imperva Web Application Firewall (WAF) before 2021-12-23 allows remote unauthenticated attackers to use \"Content-Encoding: gzip\" to evade WAF security controls and send malicious HTTP POST requests to web servers behind the WAF."}, {"lang": "es", "value": "Imperva Web Application Firewall (WAF) versiones anteriores a 31-12-2021 permite a atacantes remotos no autenticados usar \"Content-Encoding: gzip\" para omitir los controles de seguridad del WAF y enviar peticiones HTTP POST maliciosas a servidores web detr\u00e1s del WAF"}], "id": "CVE-2021-45468", "lastModified": "2026-06-17T04:13:25.630", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2022-01-14T18:15:10.203", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://bishopfox.com/blog/imperva-eliminates-critical-exposure"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://bishopfox.com/blog/imperva-eliminates-critical-exposure"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-444"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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