{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2018-7750","sourceIdentifier":"cve@mitre.org","published":"2018-03-13T18:29:00.303","lastModified":"2026-06-17T02:03:38.710","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed before processing other requests, as demonstrated by channel-open. A customized SSH client can simply skip the authentication step."},{"lang":"es","value":"transport.py en la implementación del servidor SSH de Paramiko, en versiones anteriores a la 1.17.6; versiones 1.18.x anteriores a la 1.18.5; versiones 2.0.x anteriores a la 2.0.8; versiones 2.1.x anteriores a la 2.1.5; versiones 2.2.x anteriores a la 2.2.3; versiones 2.3.x anteriores a la 2.3.2 y versiones 2.4.x anteriores a la 2.4.1, no comprueba adecuadamente si la autenticación se ha completado antes de procesar otras peticiones, tal y como demuestra channel-open. Un cliente SSH personalizado puede simplemente omitir el paso de autenticación."}],"affected":[{"source":"cve@mitre.org","affectedData":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","baseScore":7.5,"accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL"},"baseSeverity":"HIGH","exploitabilityScore":10.0,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}]},"weaknesses":[{"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:paramiko:paramiko:*:*:*:*:*:*:*:*","versionEndExcluding":"1.17.6","matchCriteriaId":"5D1D3BB9-1426-4498-9BB4-A7F7696C7D18"},{"vulnerable":true,"criteria":"cpe:2.3:a:paramiko:paramiko:*:*:*:*:*:*:*:*","versionStartIncluding":"1.18.0","versionEndExcluding":"1.18.5","matchCriteriaId":"8F645AC2-3A4F-47C7-9DFC-DEB25C467D21"},{"vulnerable":true,"criteria":"cpe:2.3:a:paramiko:paramiko:*:*:*:*:*:*:*:*","versionStartIncluding":"2.0.0","versionEndExcluding":"2.0.8","matchCriteriaId":"1B500C82-6C71-4ED6-B334-E13DBFFA6F51"},{"vulnerable":true,"criteria":"cpe:2.3:a:paramiko:paramiko:*:*:*:*:*:*:*:*","versionStartIncluding":"2.1.0","versionEndExcluding":"2.1.5","matchCriteriaId":"E90FB648-ABD2-4BDC-AD67-DD904595D967"},{"vulnerable":true,"criteria":"cpe:2.3:a:paramiko:paramiko:*:*:*:*:*:*:*:*","versionStartIncluding":"2.2.0","versionEndExcluding":"2.2.3","matchCriteriaId":"B2C6E9E8-AF99-4E7B-8EE4-646835D7AFE1"},{"vulnerable":true,"criteria":"cpe:2.3:a:paramiko:paramiko:*:*:*:*:*:*:*:*","versionStartIncluding":"2.3.0","versionEndExcluding":"2.3.2","matchCriteriaId":"4E16324F-880D-44DF-8F01-EFAAA5358E81"},{"vulnerable":true,"criteria":"cpe:2.3:a:paramiko:paramiko:2.4.0:*:*:*:*:*:*:*","matchCriteriaId":"CFD08D44-023B-4126-8D7F-E9ECFDA59A6E"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:redhat:ansible_engine:2.0:*:*:*:*:*:*:*","matchCriteriaId":"8989CD03-49A1-4831-BF98-9F21592788BE"},{"vulnerable":true,"criteria":"cpe:2.3:a:redhat:ansible_engine:2.4:*:*:*:*:*:*:*","matchCriteriaId":"5864D753-2A37-4800-A73E-6ACA0662B605"},{"vulnerable":true,"criteria":"cpe:2.3:a:redhat:cloudforms:4.5:*:*:*:*:*:*:*","matchCriteriaId":"32E1BA91-4695-4E64-A9D7-4A6CB6904D41"},{"vulnerable":true,"criteria":"cpe:2.3:a:redhat:cloudforms:4.6:*:*:*:*:*:*:*","matchCriteriaId":"67F7263F-113D-4BAE-B8CB-86A61531A2AC"},{"vulnerable":true,"criteria":"cpe:2.3:a:redhat:virtualization:4.1:*:*:*:*:*:*:*","matchCriteriaId":"03EB0F63-DB24-4240-BC44-C92BAE7EAF42"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*","matchCriteriaId":"EE249E1B-A1FD-4E08-AA71-A0E1F10FFE97"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*","matchCriteriaId":"9BBCD86A-E6C7-4444-9D74-F861084090F0"},{"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:6.4:*:*:*:*:*:*:*","matchCriteriaId":"AF83BB87-B203-48F9-9D06-48A5FE399050"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*","matchCriteriaId":"1F3BEFDB-5156-4E1C-80BB-8BE9FEAA7623"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*","matchCriteriaId":"16E6D998-B41D-4B49-9E00-8336D2E40A4A"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server_eus:6.7:*:*:*:*:*:*:*","matchCriteriaId":"6C81647C-9A53-481D-A54C-36770A093F90"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_server_tus:6.6:*:*:*:*:*:*:*","matchCriteriaId":"13E02156-E748-4820-B76F-7074793837E1"},{"vulnerable":true,"criteria":"cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*","matchCriteriaId":"E5ED5807-55B7-47C5-97A6-03233F4FBC3A"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*","matchCriteriaId":"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"},{"vulnerable":true,"criteria":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","matchCri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