I am not devops person but this is strange sandbox setup. If I undestsnd correctly, there were no firewall set to block requests to the public internet. Just something along the lines of "Pretty please dont use internet". If I understand correctly, in cases like these package registry should be within sandbox without a need for external access and block on any outgoing request to the internet. Furthermore there should be network traffic monitoring which there wasnt?
That’s astonishing levels of incompetence.
No, the internet access was down to finding a 0 day exploit in artifactory. However this was only get requests and they had to then use a url shortener to use other methods, then used a cybergym instance they found to run more long running things.
It not just a case of saying “pls don’t”