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Si Apache está configurado como proxy inverso y mod_auth_mellon está configurado para que solo deje acceder a los usuarios autenticados (con la directiva \"require valid-user\"), la adición de cabeceras HTTP especiales que se suelen emplear para iniciar el SAML ECP especial (no basado en el navegador) puede emplearse para omitir la autenticación."}],"metrics":{"cvssMetricV30":[{"source":"secalert@redhat.com","type":"Secondary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":5.2},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.0","vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.2,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:P","baseScore":6.8,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"source":"secalert@redhat.com","type":"Secondary","description":[{"lang":"en","value":"CWE-305"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-287"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:mod_auth_mellon_project:mod_auth_mellon:*:*:*:*:*:apache:*:*","versionEndExcluding":"0.14.2","matchCriteriaId":"8FF38978-846A-409A-BEC7-81EADDF30F04"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*","matchCriteriaId":"D100F7CE-FC64-4CC6-852A-6136D72DA419"},{"vulnerable":true,"criteria":"cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*","matchCriteriaId":"97A4B8DF-58DA-4AB6-A1F9-331B36409BA3"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*","matchCriteriaId":"142AD0DD-4CF3-4D74-9442-459CE3347E3A"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*","matchCriteriaId":"33C068A4-3780-4EAB-A937-6082DF847564"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*","matchCriteriaId":"51EF4996-72F4-4FA4-814F-F5991E7A8318"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*","matchCriteriaId":"B353CE99-D57C-465B-AAB0-73EF581127D1"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*","matchCriteriaId":"BF77CDCF-B9C9-427D-B2BF-36650FB2148C"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*","matchCriteriaId":"B76AA310-FEC7-497F-AF04-C3EC1E76C4CC"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*","matchCriteriaId":"825ECE2D-E232-46E0-A047-074B34DB1E97"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*","matchCriteriaId":"23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D"},{"vulnerable":true,"criteria":"cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*","matchCriteriaId":"07C312A0-CD2C-4B9C-B064-6409B25C278F"}]}]}],"references":[{"url":"https://access.redhat.com/errata/RHBA-2019:0959","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2019:0746","source":"secalert@redhat.com","tags":["Third 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