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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
The kbdint_next_device function in auth2-chall.c in sshd in OpenSSH through 6.9 does not properly restrict the processing of keyboard-interactive devices within a single connection, which makes it easier for remote attackers to conduct brute-force attacks or cause a denial of service (CPU consumption) via a long and duplicative list in the ssh -oKbdInteractiveDevices option, as demonstrated by a modified client that provides a different password for each pam element on this list.
Metrics
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vector strings. CVSS information contributed by other sources is also
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Vulnerabilidad en la función kbdint_next_device en auth2-chall.c en sshd en OpenSSH hasta la versión 6.9, no restringe correctamente el procesamiento de dispositivos de teclado interactivo con una única conexión, lo cual facilita a atacantes remotos ejecutar un ataque de fuerza bruta o causar una denegación de servicio (mediante el consumo de la CPU) a través de una lista larga y redundante en la opción ssh -oKbdInteractiveDevices, según lo
Vulnerabilidad en la función kbdint_next_device en auth2-chall.c en sshd en OpenSSH hasta la versión 6.9, no restringe correctamente el procesamiento de teclado interactivo de los dispositivos con una única conexión lo cual facilita a atacantes remotos ejecutar un ataque de fuerza bruta o causar una denegación de servicio (mediante el consumo de la CPU) a través de una larga y duplicada lista ssh en la opción oKbdInteractiveDevices, como qued&oacu
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