FKIE_CVE-2018-19441

Vulnerability from fkie_nvd - Published: 2020-01-27 19:15 - Updated: 2024-11-21 03:57
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
An issue was discovered in Neato Botvac Connected 2.2.0. The GenerateRobotPassword function of the NeatoCrypto library generates insufficiently random numbers for robot secret_key values used for local and cloud authentication/authorization. If an attacker knows the serial number and is able to estimate the time of first provisioning of a robot, he is able to brute force the generated secret_key of the robot. This is because the entropy of the secret_key exclusively relies on these two values, due to not seeding the random generator and using several constant inputs for secret_key computation. Serial numbers are printed on the packaging and equal the MAC address of the robot.
References
cve@mitre.orghttps://www.usenix.org/system/files/woot19-paper_ullrich.pdfThird Party Advisory
cve@mitre.orghttps://www.youtube.com/watch?v=k5nj7Jhwn9cThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.usenix.org/system/files/woot19-paper_ullrich.pdfThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.youtube.com/watch?v=k5nj7Jhwn9cThird Party Advisory
Impacted products
Vendor Product Version
neatorobotics botvac_connected_firmware 2.2.0
neatorobotics botvac_connected -
To clipboard 

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      "value": "An issue was discovered in Neato Botvac Connected 2.2.0. The GenerateRobotPassword function of the NeatoCrypto library generates insufficiently random numbers for robot secret_key values used for local and cloud authentication/authorization. If an attacker knows the serial number and is able to estimate the time of first provisioning of a robot, he is able to brute force the generated secret_key of the robot. This is because the entropy of the secret_key exclusively relies on these two values, due to not seeding the random generator and using several constant inputs for secret_key computation. Serial numbers are printed on the packaging and equal the MAC address of the robot."
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      "value": "Se detect\u00f3 un problema en Neato Botvac Connected versi\u00f3n 2.2.0. La funci\u00f3n GenerateRobotPassword de la biblioteca NeatoCrypto, genera n\u00fameros aleatorios insuficientemente para los valores de clave secreta del robot usados para la autenticaci\u00f3n y autorizaci\u00f3n local y en la nube. Si un atacante sabe el n\u00famero de serie y es capaz de estimar el tiempo del primer aprovisionamiento de un robot, puede forzar a partir de fuerza bruta la clave secreta generada del robot. Esto es debido a que la entrop\u00eda de secret_key se basa exclusivamente en estos dos valores, debido a que el generador aleatorio no realizo el seeding y al usar varias entradas constantes para el c\u00e1lculo de secret_key. Los n\u00fameros de serie est\u00e1n impresos en el paquete y son iguales a la direcci\u00f3n MAC del robot."
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