medium6.8
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 throu…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Espressif | Esp-Idf | through 4.2 |
| Espressif | Esp8266 Nonos Sdk | through 3.0.3 |
| Espressif | Esp8266 Rtos Sdk | through 3.3 |
Weakness classification
References
- NVD record
- CVE.org record
- 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
- 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