Wrongly reacting to and sending 802.11 beacons with Channel Switch Announcement

[st0ff3r]

ESP's appear to honour 802.11 beacons containing CSA even if they are not connected to the AP sending the beacon.

Here is a simple command that sends out beacons containing CSA's
https://github.com/nabovarme/beacon_spammer

I am using an esp8266 with non-os sdk latest from master git.

The app is here: https://github.com/nabovarme/MeterLogger it is running as an AP and periodically scanning for wireless networks.

This is a severe error in the 802.11 implementation. Both the sending of CSA's and reacting on them while scanning should not happen I guess.

[st0ff3r]

Espressif, anyone having time to check it?

[ESP_Faye]

Hi,

So sorry that we missed this topic before. We have arranged an engineer to check with this issue. But due to the isolation caused by COVID-19, it may need some time to check and debug this issue. I will feedback to you as soon as there is any update. Sorry again for the inconvenience.

Thanks.

[st0ff3r]

Cool, thanks a lot

[Her Mary]

Does ESP8266 RTOS also have the same issue?