CVE-2020-5217

{"id": "CVE-2020-5217", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 1.3}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 3.9}]}, "published": "2020-01-23T03:15:10.793", "references": [{"url": "https://github.com/twitter/secure_headers/commit/936a160e3e9659737a9f9eafce13eea36b5c9fa3", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/twitter/secure_headers/issues/418", "tags": ["Exploit", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/twitter/secure_headers/pull/421", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/twitter/secure_headers/security/advisories/GHSA-xq52-rv6w-397c", "tags": ["Mitigation", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/twitter/secure_headers/commit/936a160e3e9659737a9f9eafce13eea36b5c9fa3", "tags": ["Patch"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/twitter/secure_headers/issues/418", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/twitter/secure_headers/pull/421", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/twitter/secure_headers/security/advisories/GHSA-xq52-rv6w-397c", "tags": ["Mitigation", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-95"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-74"}]}], "descriptions": [{"lang": "en", "value": "In Secure Headers (RubyGem secure_headers), a directive injection vulnerability is present in versions before 3.8.0, 5.1.0, and 6.2.0. If user-supplied input was passed into append/override_content_security_policy_directives, a semicolon could be injected leading to directive injection. This could be used to e.g. override a script-src directive. Duplicate directives are ignored and the first one wins. The directives in secure_headers are sorted alphabetically so they pretty much all come before script-src. A previously undefined directive would receive a value even if SecureHeaders::OPT_OUT was supplied. The fixed versions will silently convert the semicolons to spaces and emit a deprecation warning when this happens. This will result in innocuous browser console messages if being exploited/accidentally used. In future releases, we will raise application errors resulting in 500s. Depending on what major version you are using, the fixed versions are 6.2.0, 5.1.0, 3.8.0."}, {"lang": "es", "value": "En Secure Headers (secure_headers de RubyGem), una vulnerabilidad de inyecci\u00f3n de directiva est\u00e1 presente en las versiones anteriores a 3.8.0, 5.1.0 y 6.2.0. Si una entrada suministrada por el usuario fue pasada a append/override_content_security_policy_directives, se podr\u00eda inyectar un punto y coma conllevando a una inyecci\u00f3n de directiva. Esto podr\u00eda ser usado para, por ejemplo anular una directiva script-src. Las directivas duplicadas son ignoradas y la primera gana. Las directivas en secure_headers est\u00e1n ordenadas alfab\u00e9ticamente, por lo que casi todas van antes de script-src. Una directiva previamente indefinida recibir\u00eda un valor inclusive si la funci\u00f3n SecureHeaders::OPT_OUT fue suministrada. Las versiones corregidas convertir\u00e1n silenciosamente los puntos y comas en espacios y emitir\u00e1n una advertencia de desaprobaci\u00f3n cuando esto suceda. Esto resultar\u00e1 en mensajes inocuos de la consola del navegador si est\u00e1 siendo explotada o usada accidentalmente. En futuras versiones, generaremos errores de aplicaci\u00f3n resultando en 500. Seg\u00fan la versi\u00f3n principal que est\u00e9 usando, las versiones corregidas son 6.2.0, 5.1.0, 3.8.0."}], "lastModified": "2024-11-21T05:33:41.997", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:twitter:secure_headers:*:*:*:*:*:ruby:*:*", "vulnerable": true, "matchCriteriaId": "F0F5AB6F-E584-4640-A497-3BC81A4171C8", "versionEndExcluding": "3.8.0"}, {"criteria": "cpe:2.3:a:twitter:secure_headers:*:*:*:*:*:ruby:*:*", "vulnerable": true, "matchCriteriaId": "B8A7D02A-9E27-4388-A128-14BFCCA049CA", "versionEndExcluding": "5.1.0", "versionStartIncluding": "5.0.0"}, {"criteria": "cpe:2.3:a:twitter:secure_headers:*:*:*:*:*:ruby:*:*", "vulnerable": true, "matchCriteriaId": "D8B75B75-5C9C-4C8D-ACD6-214D042546E7", "versionEndExcluding": "6.2.0", "versionStartIncluding": "6.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}