Introduction
Welcome back tothe OverTheWire Bandit challenges. In this level, we encounter a scenario involving networking and data transfer.
Previous Flag
Before we delve into the current challenge, let's input the flag from the previous level:
Flag:
VxCazJaVykI6W36BkBU0mJTCM8rR95XT
Netcat
The provided command involves using Netcat (nc
) to transfer the contents of the /etc/bandit_pass/bandit20
file over a network connection. Let's break it down:
cat /etc/bandit_pass/bandit20 | nc -lvp 1234 &
This command reads the password from the file and sends it over a network connection. The nc -lvp 1234
part sets up a Netcat listener on port 1234, waiting to receive the data.
Connecting with suconnect
Now, let's use the ./suconnect
command to establish a connection and retrieve the password:
./suconnect 1234
This command initiates a connection to the Netcat listener on port 1234, allowing us to receive the contents of the password file.
Flag Unveiled
Upon successful execution, the password for Bandit level 21 should be displayed, providing us with the key to the next stage:
Flag:
NvEJF7oVjkddltPSrdKEFOllh9V1IBcq
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