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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:zammad:zammad:*:*:*:*:*:*:*:*", "matchCriteriaId": "0DA96224-D95E-4967-A932-F42B7E93F83D", "versionEndExcluding": "3.4.1", "versionStartIncluding": "1.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An issue was discovered in Zammad before 3.4.1. There is an authentication bypass in the SSO endpoint via a crafted header, when SSO is not configured. An attacker can create a valid and authenticated session that can be used to perform any actions in the name of other users."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Zammad versiones anteriores a 3.4.1. Se presenta una omisi\u00f3n de autenticaci\u00f3n en el endpoint de SSO por medio de un encabezado dise\u00f1ado, cuando la SSO no est\u00e1 configurada. Un atacante puede crear una sesi\u00f3n v\u00e1lida y autenticada que puede ser usada para llevar a cabo algunas acciones en el nombre de otros usuarios"}], "id": "CVE-2020-26030", "lastModified": "2020-12-29T14:31:44.663", "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": "2020-12-28T08:15:11.257", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://zammad.com/news/security-advisory-zaa-2020-18"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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