CVE-2021-34746

A vulnerability in the TACACS+ authentication, authorization and accounting (AAA) feature of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to bypass authentication and log in to an affected device as an administrator. This vulnerability is due to incomplete validation of user-supplied input that is passed to an authentication script. An attacker could exploit this vulnerability by injecting parameters into an authentication request. A successful exploit could allow the attacker to bypass authentication and log in as an administrator to the affected device.

A vulnerability in the TACACS+ authentication, authorization and accounting (AAA) feature of Cisco Enterprise NFV Infrastructure Software (NFVIS) could allow an unauthenticated, remote attacker to bypass authentication and log in to an affected device as an administrator. This vulnerability is due to incomplete validation of user-supplied input that is passed to an authentication script. An attacker could exploit this vulnerability by injecting parameters into an authentication request. A successful exploit could allow the attacker to bypass authentication and log in as an administrator to the affected device.

Una vulnerabilidad en la función de autenticación, autorización y contabilidad (AAA) de TACACS+ del software de infraestructura NFV de Cisco (NFVIS), podría permitir a un atacante remoto no autenticado omitir la autenticación e iniciar sesión en un dispositivo afectado como administrador. Esta vulnerabilidad es debido a una comprobación incompleta de la entrada suministrada por el usuario que se pasa a un script de autenticación. Un atacante podría explotar esta vulnerabilidad al inyectar parámetros en una petición de autenticación. Una explotación con éxito podría permitir al atacante omitir la autenticación e iniciar sesión como administrador en el dispositivo afectado