CVE-2020-26276

{"id": "CVE-2020-26276", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 10.0, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.9}]}, "published": "2020-12-17T20:15:13.760", "references": [{"url": "https://github.com/fleetdm/fleet/blob/master/CHANGELOG.md#fleet-351-dec-14-2020", "tags": ["Release Notes", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/fleetdm/fleet/commit/57812a532e5f749c8e18c6f6a652eca65c083607", "tags": ["Patch", "Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/fleetdm/fleet/security/advisories/GHSA-w3wf-cfx3-6gcx", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/mattermost/xml-roundtrip-validator", "tags": ["Third Party Advisory"], "source": "security-advisories@github.com"}, {"url": "https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities", "tags": ["Not Applicable", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-290"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-290"}]}], "descriptions": [{"lang": "en", "value": "Fleet is an open source osquery manager. In Fleet before version 3.5.1, due to issues in Go's standard library XML parsing, a valid SAML response may be mutated by an attacker to modify the trusted document. This can result in allowing unverified logins from a SAML IdP. Users that configure Fleet with SSO login may be vulnerable to this issue. This issue is patched in 3.5.1. The fix was made using https://github.com/mattermost/xml-roundtrip-validator If upgrade to 3.5.1 is not possible, users should disable SSO authentication in Fleet."}, {"lang": "es", "value": "Fleet es un administrador de osquery de c\u00f3digo abierto. En Fleet versiones anteriores a 3.5.1, debido a problemas en el an\u00e1lisis de XML de la biblioteca est\u00e1ndar de Go, una respuesta v\u00e1lida SAML puede ser mutada por un atacante para modificar el documento confiable. Esto puede resultar en permitir inicios de sesi\u00f3n no verificados desde un IdP SAML. Los usuarios que configuran Fleet con inicio de sesi\u00f3n SSO pueden ser vulnerables a este problema. Este problema est\u00e1 parcheado en la versi\u00f3n 3.5.1. La correcci\u00f3n fue realizada usando https://github.com/mattermost/xml-roundtrip-validator si la actualizaci\u00f3n a la versi\u00f3n 3.5.1 no es posible, los usuarios deben deshabilitar la autenticaci\u00f3n SSO en Fleet"}], "lastModified": "2020-12-18T19:11:51.607", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:fleetdm:fleet:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "73A23340-9D58-472D-9ADD-4313F6B9C332", "versionEndExcluding": "3.5.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}