{"containers":{"cna":{"affected":[{"product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"12.3X48-D105","status":"affected","version":"12.3X48","versionType":"custom"},{"lessThan":"15.1X49-D220","status":"affected","version":"15.1X49","versionType":"custom"},{"lessThan":"18.3R3-S5","status":"affected","version":"18.3","versionType":"custom"},{"lessThan":"18.4R3-S9","status":"affected","version":"18.4","versionType":"custom"},{"lessThan":"19.1R3-S7","status":"affected","version":"19.1","versionType":"custom"},{"lessThan":"19.2R3-S3","status":"affected","version":"19.2","versionType":"custom"},{"lessThan":"19.3R3-S4","status":"affected","version":"19.3","versionType":"custom"},{"lessThan":"19.4R3-S6","status":"affected","version":"19.4","versionType":"custom"},{"lessThan":"20.1R3","status":"affected","version":"20.1","versionType":"custom"},{"lessThan":"20.2R1-S1, 20.2R2","status":"affected","version":"20.2","versionType":"custom"},{"lessThan":"20.3R2","status":"affected","version":"20.3","versionType":"custom"},{"lessThan":"20.4R2","status":"affected","version":"20.4","versionType":"custom"},{"lessThan":"21.1R2","status":"affected","version":"21.1","versionType":"custom"}]}],"configurations":[{"lang":"en","value":"A sample configuration for Captive Portal is shown below:\n\n  [system services web-management http ]\n  [set system services web-management https]\n  [services captive-portal secure-authentication https]"}],"credits":[{"lang":"en","value":"Juniper SIRT would like to acknowledge and thank Fans0n Fan for responsibly reporting this vulnerability."}],"datePublic":"2021-10-13T00:00:00.000Z","descriptions":[{"lang":"en","value":"A persistent cross-site scripting (XSS) vulnerability in the captive portal graphical user interface of Juniper Networks Junos OS may allow a remote authenticated user to inject web script or HTML and steal sensitive data and credentials from a web administration session, possibly tricking a follow-on administrative user to perform administrative actions on the device. This issue affects Juniper Networks Junos OS: All versions, including the following supported releases: 12.3X48 versions prior to 12.3X48-D105; 15.1X49 versions prior to 15.1X49-D220; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R1-S1, 20.2R2; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2; 21.1 versions prior to 21.1R2."}],"exploits":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79 Cross-site Scripting (XSS)","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2021-10-19T18:16:37.000Z","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://kb.juniper.net/JSA11220"}],"solutions":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: Junos OS 12.3X48-D105, 15.1X49-D220, 18.3R3-S5, 18.4R3-S9, 19.1R3-S7, 19.2R3-S3, 19.3R3-S4, 19.4R3-S6, 20.1R3, 20.2R1-S1, 20.2R2, 20.3R2, 20.4R2, 21.1R2, 21.2R1 and all subsequent releases.\n\nAdditionally, after performing an upgrade to a resolved release, additional steps must be taken to ensure that all stored malicious scripts are removed from the configuration."}],"source":{"advisory":"JSA11220","defect":["1449280"],"discovery":"EXTERNAL"},"title":"Junos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal","workarounds":[{"lang":"en","value":"There are no viable workarounds for this issue."}],"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"sirt@juniper.net","DATE_PUBLIC":"2021-10-13T16:00:00.000Z","ID":"CVE-2021-31355","STATE":"PUBLIC","TITLE":"Junos OS: Stored Cross-Site Scripting (XSS) vulnerability in captive portal"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Junos OS","version":{"version_data":[{"version_affected":"<","version_name":"12.3X48","version_value":"12.3X48-D105"},{"version_affected":"<","version_name":"15.1X49","version_value":"15.1X49-D220"},{"version_affected":"<","version_name":"18.3","version_value":"18.3R3-S5"},{"version_affected":"<","version_name":"18.4","version_value":"18.4R3-S9"},{"version_affected":"<","version_name":"19.1","version_value":"19.1R3-S7"},{"version_affected":"<","version_name":"19.2","version_value":"19.2R3-S3"},{"version_affected":"<","version_name":"19.3","version_value":"19.3R3-S4"},{"version_affected":"<","version_name":"19.4","version_value":"19.4R3-S6"},{"version_affected":"<","version_name":"20.1","version_value":"20.1R3"},{"version_affected":"<","version_name":"20.2","version_value":"20.2R1-S1, 20.2R2"},{"version_affected":"<","version_name":"20.3","version_value":"20.3R2"},{"version_affected":"<","version_name":"20.4","version_value":"20.4R2"},{"version_affected":"<","version_name":"21.1","version_value":"21.1R2"}]}}]},"vendor_name":"Juniper Networks"}]}},"configuration":[{"lang":"en","value":"A sample configuration for Captive Portal is shown below:\n\n  [system services web-management http ]\n  [set system services web-management https]\n  [services captive-portal secure-authentication https]"}],"credit":[{"lang":"eng","value":"Juniper SIRT would like to acknowledge and thank Fans0n Fan for responsibly reporting this vulnerability."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A persistent cross-site scripting (XSS) vulnerability in the captive portal graphical user interface of Juniper Networks Junos OS may allow a remote authenticated user to inject web script or HTML and steal sensitive data and credentials from a web administration session, possibly tricking a follow-on administrative user to perform administrative actions on the device. This issue affects Juniper Networks Junos OS: All versions, including the following supported releases: 12.3X48 versions prior to 12.3X48-D105; 15.1X49 versions prior to 15.1X49-D220; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R1-S1, 20.2R2; 20.3 versions prior to 20.3R2; 20.4 versions prior to 20.4R2; 21.1 versions prior to 21.1R2."}]},"exploit":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-79 Cross-site Scripting (XSS)"}]}]},"references":{"reference_data":[{"name":"https://kb.juniper.net/JSA11220","refsource":"CONFIRM","url":"https://kb.juniper.net/JSA11220"}]},"solution":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: Junos OS 12.3X48-D105, 15.1X49-D220, 18.3R3-S5, 18.4R3-S9, 19.1R3-S7, 19.2R3-S3, 19.3R3-S4, 19.4R3-S6, 20.1R3, 20.2R1-S1, 20.2R2, 20.3R2, 20.4R2, 21.1R2, 21.2R1 and all subsequent releases.\n\nAdditionally, after performing an upgrade to a resolved release, additional steps must be taken to ensure that all stored malicious scripts are removed from the configuration."}],"source":{"advisory":"JSA11220","defect":["1449280"],"discovery":"EXTERNAL"},"work_around":[{"lang":"en","value":"There are no viable workarounds for this issue."}]}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T22:55:53.586Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://kb.juniper.net/JSA11220"}]}]},"cveMetadata":{"assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","assignerShortName":"juniper","cveId":"CVE-2021-31355","datePublished":"2021-10-19T18:16:38.035Z","dateReserved":"2021-04-15T00:00:00.000Z","dateUpdated":"2024-09-17T00:42:23.357Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}