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The basic firewall (Network Security Groups) blocks network access by default. So you have to grant the attacker access to the port and IP.



Does it block access within the same group by default for the lateral motion case? That would definitely help somewhat, although it's certainly too common for people to have allow-all rules for internal traffic.


has no one replied that any VM that handles HTTP(s) traffic MUST open ports to start functioning, and is therefore fully vulnerable? what am I missing here


Opening http(s) ports != opening all ports, or even the ones that the management services run on

Open ports to webservers like Apache,nginx etc. aren't affected by this issue.




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