Bandit Level 21 Write-Up — Hi! Time to tackle Bandit’s Level 21. Last time, we made good use of Netcat and setuid binary files to obtain a flag that will, as we already know, be used right now as password for this level. Full set of login details follows: Address: bandit.labs.overthewire.org; Port: 2220; Username: bandit21; …

Bandit Level 20 Write-Up — Greetings! Last time we learned a thing or two about setuid permissions. This next challenge will also have us launch a setuid binary file. We’ll also need to keep our Netcat skills handy, but we’ll get into that in a minute. Right now, we need to login using the following: …

Bandit Level 19 Write-Up — Hello, again! Time to go one step further in our Bandit wargame. Today I’ll be demonstrating Level 19, which should make for a rather short, yet satisfying challenge. For now, let’s begin by logging in to the machine. To do this, we need some data first: Address: bandit.labs.overthewire.org; Port: 2220; …

Bandit Level 18 Write-Up — Good day to you all and I hope you’re doing really well! Continuing our Bandit saga, it’s now time to take on the next level. Last level had us learn to efficiently look for file differences to find our flag and we’re now sure to put it to good use. …

Bandit Level 17 Write-Up — Greetings! Time to pick up from where we left off. The Bandit series of challenges gives us yet another fun and educative cyber-puzzle. During last level, we got our hands on a private key file which we’re now going to use to login to this 17th level: Address: bandit.labs.overthewire.org; Port…

The why, the how and the garbage collector — Greetings! For today, I picked a more “hairy” topic to share with you. It revolves around a phenomenon called reference cycle. …

Bandit Level 16 Write-Up — Greetings! Previously, we dealt with Bandit’s Level 15 and, while we can always feel good about ourselves for having completed it, it’s time we took a shot at the next one. The login details to this level are, as usual, defined by the same address, same port, the username keeping…

Bandit Level 15 Write-Up — Introduction Good day to you all! Continuing our saga, we’re going to be diving into the 15th level of the Bandit series. In the last challenge, we worked with Netcat to get the flag and beat the level. …

Bandit Level 14 Write-Up — Hi, all! Ready to start Level 14? Last level was a pretty big deal, in the sense that it kinda had us learn a thing or two about SSH private keys. If you remember, we didn’t get a flag like we’re used to. …