CVE-2019-1920 – Cisco IOS Access Points Software 802.11r Fast Transition Denial of Service Vulnerability

https://notcve.org/view.php?id=CVE-2019-1920

A vulnerability in the 802.11r Fast Transition (FT) implementation for Cisco IOS Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected interface. The vulnerability is due to a lack of complete error handling condition for client authentication requests sent to a targeted interface configured for FT. An attacker could exploit this vulnerability by sending crafted authentication request traffic to the targeted interface, causing the device to restart unexpectedly. Una vulnerabilidad en la implementación de 802.11r Fast Transition (FT) para el Software IOS Access Points (APs) de Cisco, podría permitir a un atacante adyacente no autenticado causar una condición de denegación de servicio (DoS) en una interfaz afectada. La vulnerabilidad es debido a la falta de una condición de manejo de errores completo para las peticiones de autenticación de clientes enviadas hacia una interfaz específica configurada para FT. • http://www.securityfocus.com/bid/109312 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-aironet-dos • CWE-20: Improper Input Validation •