It's not true.
It can pull from other ports, URLs, make DNS calls, and seems to
evaluate even from environment variables.
It's a "virtual machine".
On 13 Dec 2021, at 11:54, Jean St-Laurent via NANOG wrote:
Well if you look to the right you won't see it, but if you look to the
left you will see it.
Meaning, that for a successful attack to work, the infected host needs
to first download a payload from ldap.
And ldap runs on port 389/636.
You probably can't see the log4j vulnerability in the https, but you
should be able to see your servers querying weird stuff on internet on
port 389/636.
Just don't allow your important hosts to fetch payload on internet on
port 389/636.
Et voila! Look to the left, not to the right.
Jean
