{"containers": {"cna": {"affected": [{"product": "Cisco Firepower System Software", "vendor": "n/a", "versions": [{"status": "affected", "version": "Cisco Firepower System Software"}]}], "datePublic": "2017-08-07T00:00:00", "descriptions": [{"lang": "en", "value": "A vulnerability in the Secure Sockets Layer (SSL) Decryption and Inspection feature of Cisco Firepower System Software 5.4.0, 5.4.1, 6.0.0, 6.1.0, 6.2.0, 6.2.1, and 6.2.2 could allow an unauthenticated, remote attacker to bypass the SSL policy for decrypting and inspecting traffic on an affected system. The vulnerability is due to unexpected interaction with Known Key and Decrypt and Resign configuration settings of SSL policies when the affected software receives unexpected SSL packet headers. An attacker could exploit this vulnerability by sending a crafted SSL packet through an affected device in a valid SSL session. A successful exploit could allow the attacker to bypass the SSL decryption and inspection policy for the affected system, which could allow traffic to flow through the system without being inspected. Cisco Bug IDs: CSCve12652."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-310", "description": "CWE-310", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2017-08-07T05:57:01", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-fpw"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCve12652"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@cisco.com", "ID": "CVE-2017-6766", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Cisco Firepower System Software", "version": {"version_data": [{"version_value": "Cisco Firepower System Software"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in the Secure Sockets Layer (SSL) Decryption and Inspection feature of Cisco Firepower System Software 5.4.0, 5.4.1, 6.0.0, 6.1.0, 6.2.0, 6.2.1, and 6.2.2 could allow an unauthenticated, remote attacker to bypass the SSL policy for decrypting and inspecting traffic on an affected system. The vulnerability is due to unexpected interaction with Known Key and Decrypt and Resign configuration settings of SSL policies when the affected software receives unexpected SSL packet headers. An attacker could exploit this vulnerability by sending a crafted SSL packet through an affected device in a valid SSL session. A successful exploit could allow the attacker to bypass the SSL decryption and inspection policy for the affected system, which could allow traffic to flow through the system without being inspected. Cisco Bug IDs: CSCve12652."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-310"}]}]}, "references": {"reference_data": [{"name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-fpw", "refsource": "CONFIRM", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-fpw"}, {"name": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCve12652", "refsource": "CONFIRM", "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCve12652"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T15:41:17.426Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-fpw"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://quickview.cloudapps.cisco.com/quickview/bug/CSCve12652"}]}]}, "cveMetadata": {"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2017-6766", "datePublished": "2017-08-07T06:00:00", "dateReserved": "2017-03-09T00:00:00", "dateUpdated": "2024-08-05T15:41:17.426Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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La vulnerabilidad se debe a una interacci\u00f3n inesperada con las opciones de configuraci\u00f3n Known Key y Decrypt and Resign de las pol\u00edticas SSL cuando el software afectado recibe cabeceras de paquetes SSL inesperadas. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de un paquete SSL manipulado a trav\u00e9s de un dispositivo afectado en una sesi\u00f3n SSL v\u00e1lida. Si se explota esta vulnerabilidad con \u00e9xito, el atacante podr\u00eda eludir la pol\u00edtica de descifrado e inspecci\u00f3n SSL para el sistema afectado, lo que podr\u00eda permitir que el tr\u00e1fico fluyese a trav\u00e9s del sistema sin ser inspeccionado. 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