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CVE-2018-15397

Estado: ModificadaMedia (6.8)—

A vulnerability in the implementation of Traffic Flow Confidentiality (TFC) over IPsec functionality in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to an error that may occur if the affected software renegotiates the encryption key for an IPsec tunnel when certain TFC traffic is in flight.

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An attacker could exploit this vulnerability by sending a malicious stream of TFC traffic through an established IPsec tunnel on an affected device. A successful exploit could allow the attacker to cause a daemon process on the affected device to crash, which could cause the device to crash and result in a DoS condition.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Fuente: mapeo oficial MITRE CTID (CVE → ATT&CK).

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (2)

CWE

Referencias

JSON original (NVD)

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    },
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      "value": "Una vulnerabilidad en la implementación de Traffic Flow Confidentiality (TFC) en la funcionalidad IPsec en Cisco Adaptive Security Appliance (ASA) Software y Cisco Firepower Threat Defense (FTD) Software podría permitir que un atacante remoto no autenticado provoque que un dispositivo afectado se reinicie inesperadamente, lo que resulta en una denegación de servicio (DoS). La vulnerabilidad se debe a un error que podría ocurrir si el software afectado renegocia la clave de cifrado para un túnel IPsec cuando cierto tráfico TFC está en tránsito. Un atacante podría explotar esta vulnerabilidad enviando un flujo de tráfico TFC malicioso a través de un túnel IPsec establecido en un dispositivo afectado. Su explotación con éxito podría permitir que el atacante provoque el cierre inesperado de un proceso demonio en el dispositivo afectado, lo que provocará que el dispositivo se cierre inesperadamente y desemboque en una denegación de servicio (DoS)."
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