Key Croc doesn't connect to C2 (Current device.config / https)

[supercop89]

Hi,

we started the binary with the https flag and downloaded the device.config to the croc.

In the firewall we see that the croc tries to connect to 443 but the binary delivers the following answer to the croc. Therefore it is no connection to the c2 cloud.

remote error: tls: expired certificate

Everytime the same behaviour. Very strange.

BR cop

[dark_pyrro]

Check the Lets Encrypt certs handling on the Croc. Someone did a "howto" based on my posts on the forums about fixing this:
https://bobmckay.com/i-t-support-networking/security/hak5-keycroc-problems-connecting-to-cloud-c2-when-https-is-used/

My original forum post:
https://forums.hak5.org/topic/52070-keycroc-cannot-connect-to-c2/?do=findComment&comment=344952