{"containers":{"cna":{"affected":[{"product":"Junos OS","vendor":"Juniper Networks","versions":[{"lessThan":"12.3R12-S20","status":"affected","version":"12.3","versionType":"custom"},{"lessThan":"15.1R7-S11","status":"affected","version":"15.1","versionType":"custom"},{"lessThan":"18.3R3-S6","status":"affected","version":"18.3","versionType":"custom"},{"lessThan":"18.4R3-S10","status":"affected","version":"18.4","versionType":"custom"},{"lessThan":"19.1R3-S7","status":"affected","version":"19.1","versionType":"custom"},{"lessThan":"19.2R3-S4","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-S2","status":"affected","version":"20.1","versionType":"custom"},{"lessThan":"20.2R3-S3","status":"affected","version":"20.2","versionType":"custom"},{"lessThan":"20.3R3-S1","status":"affected","version":"20.3","versionType":"custom"},{"lessThan":"20.4R3","status":"affected","version":"20.4","versionType":"custom"},{"lessThan":"21.1R3","status":"affected","version":"21.1","versionType":"custom"},{"lessThan":"21.2R2","status":"affected","version":"21.2","versionType":"custom"}]}],"configurations":[{"lang":"en","value":"The device must have J-Web's HTTP services enabled to be susceptible to this issue:\n\n  [system services web-management http]"}],"credits":[{"lang":"en","value":"Andy Coles of Microsoft MSRC Vulnerabilities and Mitigations Team"}],"datePublic":"2021-10-13T00:00:00.000Z","descriptions":[{"lang":"en","value":"A Protection Mechanism Failure vulnerability in the J-Web HTTP service of Juniper Networks Junos OS allows a remote unauthenticated attacker to perform Person-in-the-Middle (PitM) attacks against the device. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S20; 15.1 versions prior to 15.1R7-S11; 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2."}],"exploits":[{"lang":"en","value":"Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-311","description":"CWE-311: Missing Encryption of Sensitive Data","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-325","description":"CWE-325: Missing Cryptographic Step","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-693","description":"CWE-693: Protection Mechanism Failure","lang":"en","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-300","description":"CWE-300 Channel Accessible by Non-Endpoint ('Man-in-the-Middle')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2021-10-19T18:17:31.000Z","orgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","shortName":"juniper"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://kb.juniper.net/JSA11254"}],"solutions":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 12.3R12-S20, 15.1R7-S11, 18.3R3-S6, 18.4R3-S10, 19.1R3-S7, 19.2R3-S4, 19.3R3-S4, 19.4R3-S6, 20.1R3-S2, 20.2R3-S3, 20.3R3-S1, 20.4R3, 21.1R3, 21.2R2, 21.3R1, and all subsequent releases.\n\nNote: Use of HTTP must also be discontinued."}],"source":{"advisory":"JSA11254","defect":["1603199"],"discovery":"EXTERNAL"},"title":"Junos OS: When using J-Web with HTTP an attacker may retrieve encryption keys via Person-in-the-Middle attacks.","workarounds":[{"lang":"en","value":"Discontinue the use of HTTP, instead use HTTPS when using J-Web.\n\n  [system services web-management https]"}],"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-2021-31386","STATE":"PUBLIC","TITLE":"Junos OS: When using J-Web with HTTP an attacker may retrieve encryption keys via Person-in-the-Middle attacks."},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Junos OS","version":{"version_data":[{"version_affected":"<","version_name":"12.3","version_value":"12.3R12-S20"},{"version_affected":"<","version_name":"15.1","version_value":"15.1R7-S11"},{"version_affected":"<","version_name":"18.3","version_value":"18.3R3-S6"},{"version_affected":"<","version_name":"18.4","version_value":"18.4R3-S10"},{"version_affected":"<","version_name":"19.1","version_value":"19.1R3-S7"},{"version_affected":"<","version_name":"19.2","version_value":"19.2R3-S4"},{"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-S2"},{"version_affected":"<","version_name":"20.2","version_value":"20.2R3-S3"},{"version_affected":"<","version_name":"20.3","version_value":"20.3R3-S1"},{"version_affected":"<","version_name":"20.4","version_value":"20.4R3"},{"version_affected":"<","version_name":"21.1","version_value":"21.1R3"},{"version_affected":"<","version_name":"21.2","version_value":"21.2R2"}]}}]},"vendor_name":"Juniper Networks"}]}},"configuration":[{"lang":"en","value":"The device must have J-Web's HTTP services enabled to be susceptible to this issue:\n\n  [system services web-management http]"}],"credit":[{"lang":"eng","value":"Andy Coles of Microsoft MSRC Vulnerabilities and Mitigations Team"}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"A Protection Mechanism Failure vulnerability in the J-Web HTTP service of Juniper Networks Junos OS allows a remote unauthenticated attacker to perform Person-in-the-Middle (PitM) attacks against the device. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S20; 15.1 versions prior to 15.1R7-S11; 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R3; 21.2 versions prior to 21.2R2."}]},"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":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-311: Missing Encryption of Sensitive Data"}]},{"description":[{"lang":"eng","value":"CWE-325: Missing Cryptographic Step"}]},{"description":[{"lang":"eng","value":"CWE-693: Protection Mechanism Failure"}]},{"description":[{"lang":"eng","value":"CWE-300 Channel Accessible by Non-Endpoint ('Man-in-the-Middle')"}]}]},"references":{"reference_data":[{"name":"https://kb.juniper.net/JSA11254","refsource":"CONFIRM","url":"https://kb.juniper.net/JSA11254"}]},"solution":[{"lang":"en","value":"The following software releases have been updated to resolve this specific issue: 12.3R12-S20, 15.1R7-S11, 18.3R3-S6, 18.4R3-S10, 19.1R3-S7, 19.2R3-S4, 19.3R3-S4, 19.4R3-S6, 20.1R3-S2, 20.2R3-S3, 20.3R3-S1, 20.4R3, 21.1R3, 21.2R2, 21.3R1, and all subsequent releases.\n\nNote: Use of HTTP must also be discontinued."}],"source":{"advisory":"JSA11254","defect":["1603199"],"discovery":"EXTERNAL"},"work_around":[{"lang":"en","value":"Discontinue the use of HTTP, instead use HTTPS when using J-Web.\n\n  [system services web-management https]"}]}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-03T22:55:53.783Z"},"title":"CVE Program Container","references":[{"tags":["x_refsource_CONFIRM","x_transferred"],"url":"https://kb.juniper.net/JSA11254"}]}]},"cveMetadata":{"assignerOrgId":"8cbe9d5a-a066-4c94-8978-4b15efeae968","assignerShortName":"juniper","cveId":"CVE-2021-31386","datePublished":"2021-10-19T18:17:31.942Z","dateReserved":"2021-04-15T00:00:00.000Z","dateUpdated":"2024-09-17T01:16:54.566Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"}