{"affected":[{"affectedData":[{"product":"Junos OS Evolved","vendor":"Juniper Networks","versions":[{"lessThan":"20.2R1-EVO","status":"affected","version":"unspecified","versionType":"custom"},{"lessThan":"18.4R1-EVO","status":"unaffected","version":"unspecified","versionType":"custom"}]}],"source":"sirt@juniper.net"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:juniper:junos_os_evolved:19.2:r1:*:*:*:*:*:*","matchCriteriaId":"914D6984-1820-483B-AEB9-2C5257B5E900","vulnerable":true},{"criteria":"cpe:2.3:o:juniper:junos_os_evolved:19.2:r2:*:*:*:*:*:*","matchCriteriaId":"14C57D33-01BB-4190-B787-F5BDACE82AFD","vulnerable":true},{"criteria":"cpe:2.3:o:juniper:junos_os_evolved:19.3:r2:*:*:*:*:*:*","matchCriteriaId":"2D3C2D74-AF22-4BED-A0C5-089B5507D275","vulnerable":true},{"criteria":"cpe:2.3:o:juniper:junos_os_evolved:19.4:r1:*:*:*:*:*:*","matchCriteriaId":"83447F3F-79A3-41DF-8FD1-31DCFCBE40A4","vulnerable":true},{"criteria":"cpe:2.3:o:juniper:junos_os_evolved:19.4:r2:*:*:*:*:*:*","matchCriteriaId":"2B14CED1-BEAF-4343-A05D-FB1E2B6AC955","vulnerable":true},{"criteria":"cpe:2.3:o:juniper:junos_os_evolved:19.4:r2-s1:*:*:*:*:*:*","matchCriteriaId":"ABB91C38-8C70-436A-83DB-42B8DF81D7D8","vulnerable":true},{"criteria":"cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:*","matchCriteriaId":"F64FBB4B-7CBF-499B-A523-804857DEFAFA","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"The system console configuration option 'log-out-on-disconnect' In Juniper Networks Junos OS Evolved fails to log out an active CLI session when the console cable is disconnected. This could allow a malicious attacker with physical access to the console the ability to resume a previous interactive session and possibly gain administrative privileges. This issue affects all Juniper Networks Junos OS Evolved versions after 18.4R1-EVO, prior to 20.2R1-EVO."},{"lang":"es","value":"La opción de configuración de la consola del sistema \"log-out-on-desconect\" en Juniper Networks Junos OS Evolved presenta un fallo al cerrar la sesión de una sesión de la CLI activa cuando el cable de la consola está desconectado. Esto podría permitir a un atacante malicioso con acceso físico a la consola la capacidad de reanudar una sesión interactiva anterior y posiblemente conseguir privilegios administrativos. Este problema afecta a todas las versiones de Juniper Networks Junos OS Evolved versiones posteriores a 18.4R1-EVO, anteriores a 20.2R1-EVO"}],"id":"CVE-2020-1666","lastModified":"2026-06-17T03:02:09.350","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"HIGH","cvssData":{"accessComplexity":"LOW","accessVector":"LOCAL","authentication":"NONE","availabilityImpact":"COMPLETE","baseScore":7.2,"confidentialityImpact":"COMPLETE","integrityImpact":"COMPLETE","vectorString":"AV:L/AC:L/Au:N/C:C/I:C/A:C","version":"2.0"},"exploitabilityScore":3.9,"impactScore":10.0,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"PHYSICAL","availabilityImpact":"HIGH","baseScore":6.6,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":0.7,"impactScore":5.9,"source":"sirt@juniper.net","type":"Secondary"}]},"published":"2020-10-16T21:15:12.677","references":[{"source":"sirt@juniper.net","tags":["Vendor Advisory"],"url":"https://kb.juniper.net/JSA11063"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://kb.juniper.net/JSA11063"}],"sourceIdentifier":"sirt@juniper.net","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-284"}],"source":"sirt@juniper.net","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-613"}],"source":"nvd@nist.gov","type":"Primary"}]}