{"api_version":"1","generated_at":"2026-07-23T19:55:31+00:00","cve":"CVE-2019-5102","urls":{"html":"https://cve.report/CVE-2019-5102","api":"https://cve.report/api/cve/CVE-2019-5102.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-5102","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-5102"},"summary":{"title":"CVE-2019-5102","description":"An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.","state":"PUBLIC","assigner":"talos-cna@cisco.com","published_at":"2019-11-18 18:15:00","updated_at":"2023-07-12 18:15:00"},"problem_types":["CWE-295"],"metrics":[],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0893","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0893","refsource":"MISC","tags":["Exploit","Third Party Advisory"],"title":"TALOS-2019-0893 ||  Cisco Talos Intelligence Group - Comprehensive Threat Intelligence","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-5102","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-5102","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2019","cve_id":"5102","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openwrt","cpe5":"openwrt","cpe6":"15.05.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"5102","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openwrt","cpe5":"openwrt","cpe6":"18.06.4","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"5102","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"openwrt","cpe5":"openwrt","cpe6":"15.05.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"5102","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"openwrt","cpe5":"openwrt","cpe6":"18.06.4","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"5102","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openwrt","cpe5":"openwrt","cpe6":"15.05.1","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"5102","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"openwrt","cpe5":"openwrt","cpe6":"18.06.4","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_version":"4.0","data_type":"CVE","data_format":"MITRE","CVE_data_meta":{"ID":"CVE-2019-5102","ASSIGNER":"talos-cna@cisco.com","STATE":"PUBLIC"},"description":{"description_data":[{"lang":"eng","value":"An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-295: Improper Certificate Validation","cweId":"CWE-295"}]}]},"affects":{"vendor":{"vendor_data":[{"vendor_name":"OpenWRT","product":{"product_data":[{"product_name":"OpenWRT","version":{"version_data":[{"version_affected":"=","version_value":"OpenWrt 15.05.1, via wget (busybox)"},{"version_affected":"=","version_value":"OpenWrt 18.06.4, via wget (uclient-fetch)"}]}}]}}]}},"references":{"reference_data":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0893","refsource":"MISC","name":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0893"}]},"credits":[{"lang":"en","value":"Discovered by Claudio Bozzato of Cisco Talos."}],"impact":{"cvss":[{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4,"baseSeverity":"MEDIUM"}]}},"nvd":{"publishedDate":"2019-11-18 18:15:00","lastModifiedDate":"2023-07-12 18:15:00","problem_types":["CWE-295"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":5.9,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.2,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:N/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"NONE","availabilityImpact":"NONE","baseScore":4.3},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:openwrt:openwrt:15.05.1:*:*:*:*:*:*:*","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:openwrt:openwrt:18.06.4:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2019","CveId":"5102","Ordinal":"142718","Title":"CVE-2019-5102","CVE":"CVE-2019-5102","Year":"2019"},"notes":[{"CveYear":"2019","CveId":"5102","Ordinal":"1","NoteData":"An exploitable information leak vulnerability exists in the ustream-ssl library of OpenWrt, versions 18.06.4 and 15.05.1. When connecting to a remote server, the server's SSL certificate is checked but no action is taken when the certificate is invalid. An attacker could exploit this behavior by performing a man-in-the-middle attack, providing any certificate, leading to the theft of all the data sent by the client during the first request.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"5102","Ordinal":"2","NoteData":"2019-11-18","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"5102","Ordinal":"3","NoteData":"2019-11-18","Type":"Other","Title":"Modified"}]}}}