OverTheWire Bandit Level 4 Walkthrough

Today we're doing a walkthrough of level 4 of the Bandit CTF wargame hosted at OverTheWire.org.  First, let's take a look at the level's objectives:

https://overthewire.org/wargames/bandit/bandit5.html


Looks like the Flag for the level is located in a "human readable" file located in the inhere directory.  Let's login to the game server using SSH:

ssh bandit4@bandit.labs.overthewire.org -p 2220


We use the Flag from the last level as the SSH password for this level.  After we're logged in, we look for the inhere directory, change directories and cat out the inhere directory's contents:

pwd
ls -a
cd inhere
ls -a


Looks like there are ten files here.  To find out whether a file is "human readable" or not, we can use the file command on each one.  The file command tells use what type of file the specified file is.  We also prepend the filepath with ./ because the filenames begin with a special character:

file ./-file09
file ./-file08
file ./-file07


So we find that the -file07 file type is ASCII text, meaning it is human readable.  Let's cat it out to finish the level:

cat ./-file07


Summary

Bandit4 requires us to sift through a number of files and identify the sole ASCII text file which contains the level's flag.

Finish













Comments

Post a Comment

Popular posts from this blog

TryHackMe - Windows PrivEsc - Walkthrough

Image
Introduction Today we're going to be doing a walkthrough for the Windows PrivEsc room hosted at https://tryhackme.com/room/w indows10privesc . For this walkthrough, we'll be using two virtual machines (VMs), a Kali Linux VM as our attacking machine, and the deployed Windows 10 client as the the victim machine. Task 1 - Deploy the Vulnerable Windows VM Press the green button here: The Windows machine should come online after a minute or two. The IP address of the machine can be found here: Of course, the actual IP address will probably be a different one from the one in the screenshot.  For the examples, however, we will use the IP address of 10.10.227.113 RDP should be available on port 3389 (it may take a few minutes for the service to start). You can login to the "user" account using the password "password321": xfreerdp /u:user /p:password321 /cert:ignore /v:10.10.227.113 Questions: Deploy the Windows VM and login using the "user" ...
Read more

TryHackMe - Reversing Elf - Walkthrough

Image
Introduction Today we're going to be doing a walkthrough for the Reversing ELF room hosted at https://tryhackme.com/room/ reverselfiles . For this walkthrough, we'll be using one virtual machine (VMs), a Kali Linux VM as our attacking machine. Task 1 - Crackme1 Questions What is the flag? Download the Task 1 Task File Copy it to your working directory Give the file executable permissions Run the file chmod +x crackme1 ./crackme1 Task 2 - Crackme2 Questions What is the super secret password ? Give the file executable permissions Run Ltrace on the file with a test string chmod +x crackme2 ltrace ./crackme2 test ./crackme2 passwordFoundInPreviousStep Task 3 - Crackme3 Questions What is the flag? Give the file executable permissions Run strings on the file Echo the base64 string you found, pipe it into Base64 decode chmod +x crackme3 strings crackme3 echo “ base64stringFoundInPreviousStep ” | base64 -d Task 4 - Crackme4 Questions What is the password ? Give the file execu...
Read more

TryHackMe - XSS - Walkthrough

Image
Introduction Today we're going to be doing a walkthrough for the XSS room hosted at https://tryhackme.com/room/ xss . For this walkthrough, we'll be using two virtual machines (VMs), the TryHackMe AttackBox VM as our attacking machine, and the deployed XSS vulnerable web client as the the victim machine. Task 1 - Introduction Questions: Read the introduction. No answer needed Task 2 - Deploy your XSS Playground Questions Deploy the machine and navigate to http://<ip> No answer needed Task 3 - Stored XSS Questions The machine you deployed earlier will guide you though exploiting some cool vulnerabilities, stored XSS has to offer. There are hints for answering these questions on the machine. No answer needed Add a comment and see if you can insert some of your own HTML. Doing so will reveal the answer to this question. Register for the web-app with the following parameters Username: test Password: test Click the Register button  Click the “hamburger menu” button Click the ...
Read more