{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T05:04:43.806","vulnerabilities":[{"cve":{"id":"CVE-2022-20866","sourceIdentifier":"psirt@cisco.com","published":"2022-08-10T17:15:08.487","lastModified":"2024-11-21T06:43:42.867","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability in the handling of RSA keys on devices running Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to retrieve an RSA private key. This vulnerability is due to a logic error when the RSA key is stored in memory on a hardware platform that performs hardware-based cryptography. An attacker could exploit this vulnerability by using a Lenstra side-channel attack against the targeted device. A successful exploit could allow the attacker to retrieve the RSA private key. The following conditions may be observed on an affected device: This vulnerability will apply to approximately 5 percent of the RSA keys on a device that is running a vulnerable release of Cisco ASA Software or Cisco FTD Software; not all RSA keys are expected to be affected due to mathematical calculations applied to the RSA key. The RSA key could be valid but have specific characteristics that make it vulnerable to the potential leak of the RSA private key. If an attacker obtains the RSA private key, they could use the key to impersonate a device that is running Cisco ASA Software or Cisco FTD Software or to decrypt the device traffic. See the Indicators of Compromise section for more information on the detection of this type of RSA key. The RSA key could be malformed and invalid. A malformed RSA key is not functional, and a TLS client connection to a device that is running Cisco ASA Software or Cisco FTD Software that uses the malformed RSA key will result in a TLS signature failure, which means a vulnerable software release created an invalid RSA signature that failed verification. If an attacker obtains the RSA private key, they could use the key to impersonate a device that is running Cisco ASA Software or Cisco FTD Software or to decrypt the device traffic."},{"lang":"es","value":"Una vulnerabilidad en el manejo de las claves RSA en los dispositivos que ejecutan el software Cisco Adaptive Security Appliance (ASA) y el software Cisco Firepower Threat Defense (FTD) podría permitir a un atacante remoto no autenticado recuperar una clave privada RSA. Esta vulnerabilidad es debido a un error lógico cuando la clave RSA es almacenada en la memoria de una plataforma de hardware que lleva a cabo criptografía basada en hardware. Un atacante podría explotar esta vulnerabilidad al usar un ataque de canal lateral Lenstra contra el dispositivo objetivo. Una explotación con éxito podría permitir al atacante recuperar la clave privada RSA. Las siguientes condiciones pueden observarse en un dispositivo afectado: Esta vulnerabilidad será aplicada a aproximadamente el 5 por ciento de las claves RSA en un dispositivo que esté ejecutando una versión vulnerable del software Cisco ASA o del software Cisco FTD; no es esperado que todas las claves RSA sean afectadas debido a cálculos matemáticos aplicados a la clave RSA. La clave RSA podría ser válida pero tener características específicas que la hacen vulnerable a una posible filtración de la clave privada RSA. Si un atacante obtiene la clave privada RSA, podría usarla para hacerse pasar por un dispositivo que esté ejecutando el software Cisco ASA o el software Cisco FTD o para descifrar el tráfico del dispositivo. Consulte la sección Indicadores de compromiso para obtener más información sobre la detección de este tipo de clave RSA. La clave RSA podría estar malformada y no ser válida. Una clave RSA malformada no es funcional, y una conexión de cliente TLS a un dispositivo que ejecuta el software Cisco ASA o el software Cisco FTD que usa la clave RSA malformada resultará en un fallo de la firma TLS, lo que significa que una versión de software vulnerable creó una firma RSA no válida que falló en la verificación. Si un atacante obtiene la clave privada RSA, podría usarla para hacerse pasar por un dispositivo que esté ejecutando el software Cisco ASA o el software Cisco FTD o para descifrar el tráfico del dispositivo"}],"metrics":{"cvssMetricV31":[{"source":"psirt@cisco.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","baseScore":7.4,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.2,"impactScore":5.2},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"psirt@cisco.com","type":"Secondary","description":[{"lang":"en","value":"CWE-203"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-203"}]}],"configurations":[{"operator":"AND","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*","versionStartIncluding":"9.16.0","versionEndExcluding":"9.16.3.19","matchCriteriaId":"107E5744-F632-406D-AAE9-C04BF910D042"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*","versionStartIncluding":"9.17.0","versionEndExcluding":"9.17.1.13","matchCriteriaId":"299D4D24-6DF2-47DE-8DDD-71F8796A037A"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*","versionStartIncluding":"9.18.0","versionEndExcluding":"9.18.2","matchCriteriaId":"AC4CE962-515C-42EF-A209-1B82330D2049"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*","versionStartIncluding":"7.0.0","versionEndExcluding":"7.0.4","matchCriteriaId":"D8E887FA-6D5C-4AAB-BFBF-4239C1822BDF"},{"vulnerable":true,"criteria":"cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1.0","versionEndExcluding":"7.2.0.1","matchCriteriaId":"526BB5E8-D3CB-468B-B55A-C1FB032EB45A"}]},{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asa_5506-x:-:*:*:*:*:*:*:*","matchCriteriaId":"763B801D-CA1E-4C56-8B06-3373EA307C7E"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asa_5506h-x:-:*:*:*:*:*:*:*","matchCriteriaId":"30AC6907-3091-409F-967D-64A82A0C5A8C"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asa_5506w-x:-:*:*:*:*:*:*:*","matchCriteriaId":"D11AF728-8EB0-45EB-A7DD-F2D52B3BB7B8"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asa_5508-x:-:*:*:*:*:*:*:*","matchCriteriaId":"92AE506A-E710-465B-B795-470FDE0E0ECA"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:asa_5516-x:-:*:*:*:*:*:*:*","matchCriteriaId":"1E07AF10-FFB2-4AC7-BBE7-199C3EFED81F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_1000:-:*:*:*:*:*:*:*","matchCriteriaId":"E6F79864-CA70-4192-AC2C-E174DF3F25B2"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_1010:-:*:*:*:*:*:*:*","matchCriteriaId":"7FFE3880-4B85-4E23-9836-70875D5109F7"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_1020:-:*:*:*:*:*:*:*","matchCriteriaId":"EA8B5AF8-6A57-482A-9442-E857EE7E207B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_1030:-:*:*:*:*:*:*:*","matchCriteriaId":"A9929280-2AAC-4B56-A42C-1F6EDE83988E"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_1040:-:*:*:*:*:*:*:*","matchCriteriaId":"F29B6BC3-D716-4A3D-9679-B7BE81F719C8"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_1120:-:*:*:*:*:*:*:*","matchCriteriaId":"727A02E8-40A1-4DFE-A3A2-91D628D3044F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_1140:-:*:*:*:*:*:*:*","matchCriteriaId":"19F6546E-28F4-40DC-97D6-E0E023FE939B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_1150:-:*:*:*:*:*:*:*","matchCriteriaId":"EB3B0EC3-4654-4D90-9D41-7EC2AD1DDF99"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_2100:-:*:*:*:*:*:*:*","matchCriteriaId":"D23A26EF-5B43-437C-A962-4FC69D8A0FF4"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_2110:-:*:*:*:*:*:*:*","matchCriteriaId":"52D96810-5F79-4A83-B8CA-D015790FCF72"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_2120:-:*:*:*:*:*:*:*","matchCriteriaId":"16FE2945-4975-4003-AE48-7E134E167A7F"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_2130:-:*:*:*:*:*:*:*","matchCriteriaId":"DCE7122A-5AA7-4ECD-B024-E27C9D0CFB7B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_2140:-:*:*:*:*:*:*:*","matchCriteriaId":"976901BF-C52C-4F81-956A-711AF8A60140"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_4100:-:*:*:*:*:*:*:*","matchCriteriaId":"9E9552E6-0B9B-4B32-BE79-90D4E3887A7B"},{"vulnerable":false,"criteria":"cpe:2.3:h:cisco:firepower_4110:-:*: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