CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 0CVE-2020-13595
https://notcve.org/view.php?id=CVE-2020-13595
The Bluetooth Low Energy (BLE) controller implementation in Espressif ESP-IDF 4.0 through 4.2 (for ESP32 devices) returns the wrong number of completed BLE packets and triggers a reachable assertion on the host stack when receiving a packet with an MIC failure. An attacker within radio range can silently trigger the assertion (which disables the target's BLE stack) by sending a crafted sequence of BLE packets. La implementación del controlador Bluetooth Low Energy (BLE) en Espressif ESP-IDF versiones 4.0 hasta 4.2 (para dispositivos ESP32) devuelve el número errado de paquetes BLE completados y desencadena una aserción alcanzable en la pila del host cuando está recibiendo un paquete con un fallo de MIC. Un atacante dentro del radio de alcance puede desencadenar silenciosamente la aserción (que deshabilita la pila BLE del objetivo) al enviar una secuencia de paquetes BLE diseñada • https://asset-group.github.io/cves.html https://asset-group.github.io/disclosures/sweyntooth https://github.com/espressif/esp32-bt-lib • CWE-617: Reachable Assertion •
CVSS: 6.5EPSS: 0%CPEs: 2EXPL: 0CVE-2020-13594
https://notcve.org/view.php?id=CVE-2020-13594
The Bluetooth Low Energy (BLE) controller implementation in Espressif ESP-IDF 4.2 and earlier (for ESP32 devices) does not properly restrict the channel map field of the connection request packet on reception, allowing attackers in radio range to cause a denial of service (crash) via a crafted packet. La implementación del controlador Bluetooth Low Energy (BLE) en Espressif ESP-IDF versiones 4.2 y anteriores (para dispositivos ESP32) no restringe apropiadamente el campo channel map del paquete de petición de conexión en la recepción, permitiendo a unos atacantes en el radio de alcance causar una denegación de servicio (bloqueo) por medio de un paquete diseñado • https://asset-group.github.io/cves.html https://asset-group.github.io/disclosures/sweyntooth https://github.com/espressif/esp32-bt-lib • CWE-20: Improper Input Validation •
CVSS: 6.8EPSS: 0%CPEs: 3EXPL: 1CVE-2020-12638
https://notcve.org/view.php?id=CVE-2020-12638
An encryption-bypass issue was discovered on Espressif ESP-IDF devices through 4.2, ESP8266_NONOS_SDK devices through 3.0.3, and ESP8266_RTOS_SDK devices through 3.3. Broadcasting forged beacon frames forces a device to change its authentication mode to OPEN, effectively disabling its 802.11 encryption. Se detectó un problema de omisión de cifrado en dispositivos Espressif ESP-IDF versiones hasta 4.2, dispositivos ESP8266_NONOS_SDK versiones hasta 3.0.3 y dispositivos ESP8266_RTOS_SDK versiones hasta 3.3. La transmisión de tramas beacon forjadas obliga a un dispositivo a cambiar su modo de autenticación a OPEN, deshabilitando efectivamente su encriptación 802.11 • https://github.com/espressif/ESP8266_NONOS_SDK https://github.com/espressif/ESP8266_RTOS_SDK https://github.com/espressif/esp-idf https://lbsfilm.at/blog/wpa2-authenticationmode-downgrade-in-espressif-microprocessors • CWE-287: Improper Authentication CWE-319: Cleartext Transmission of Sensitive Information •