![]() ![]() Thanks for reading along! I hope you find as much use for the SSH Konami Code as I have. You perform the scan using a SSH (Secure Shell) tunnel through the Bastion host, to the scanned database. The input was still accepted, though, which is why the "whoami" command I typed returned "jeff" in the next line, followed by another newline and the SSH server's prompt. We were interacting with the SSH client itself at the line beginning with "ssh>", but when we finished that by pressing Enter, we didn't get a new prompt from the remote server. Here's an example of me connecting to an SSH server (I set up the alias in my ~/.ssh/config file) and using an SSH control sequence to add a SOCKS proxy on port 9001 retroactively:Īn example of using an SSH escape sequence Of these, I use "~." to kill stubborn SSH clients, "~C" to use additional SSH options (like "-D 8080" to start up a new SOCKS proxy), and rarely "~#" to see what forwards I've created. (Note that escapes are only recognized immediately after newline.).~~ - send the escape character by typing it twice.Cyprus, the Czech Republic, Estonia, Hungary, Liechtenstein, Lithuania. ~& - background ssh (when waiting for connections to terminate) The downside is that you need some tech-savviness to set up an SSH tunnel.~V/v - decrease/increase verbosity (LogLevel).terminate connection (and any multiplexed sessions) The encryption used by SSH provides confidentiality and integrity of data over an insecure network, such as the Internet. What are the support escape sequences, you ask? Well, press "?" as your second character, and your SSH client will tell you: Secure Shell or SSH is a network protocol that allows data to be exchanged using a secure channel between two networked devices. Next, press the tilde character (shift + backtick) followed by another character. So, how do you start a control sequence? First, make sure "Enter" was the last key you pressed, as the SSH client won't notice the control sequence otherwise. Adding SOCKS proxies or local and remote port forwards after I've already connected to an SSH server is very useful, and far less annoying than typing my SSH key passphrase again. Then, finding out about changing SSH's options *after I had established the connection* felt like cheating. First I learned how to kill an SSH client that wasn't responsive, which was convenient. Direct tunneling from the local port 5432 to remote host 10.1.4.200 port 5432. The code itself is a series of button presses as follows (from Wikipedia):įor me, learning about SSH control sequences felt like finding SSH's Konami code. This code is a sequence of control actions for some video games that'll let you jump forward in the game (some call it a "cheat," but I'd rather not judge.). Pictured above: Tangentially related to SSH Immediately apply the skills and techniques learned in SANS courses, ranges, and summitsĪre you familiar with the Konami code? The one popularized by the Contra video game? ![]()
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