Caesar Cipher 1 Category: Cryptography Points: 150 Problem This is one of the older ciphers in the books, can you decrypt the message? You can find the ciphertext in /problems/caesar-cipher-1_2_73ab1c3e92ea50396ad143ca48039b86 on the shell server. Hint caesar cipher tutorial Solution If you are interested in cryptography or if you have read any basic article related to cryptography you have …
Pipe Category: General Skills Points: 110 Problem During your adventure, you will likely encounter a situation where you need to process data that you receive over the network rather than through a file. Can you find a way to save the output from this program and search for the flag? Connect with 2018shell.picoctf.com 2015. Hint Remember the …
Client Side is Still Bad Category: Cryptography Points: 150 Problem I forgot my password again, but this time there doesn’t seem to be a reset, can you help me? http://2018shell.picoctf.com:8249 (link) Hint Client Side really is a bad way to do it. Solution In this problem, we are just given a site and on opening that site we …
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Crypto Warmup 1 Category: Cryptography Points: 75 Problem Crpyto can often be done by hand, here’s a message you got from a friend, llkjmlmpadkkc with the key of thisisalilkey. Can you use this table to solve it?. Hint Submit your answer in our competition’s flag format. For example, if you answer was ‘hello’, you would submit ‘picoCTF{HELLO}’ as the flag. …
Category: Web Exploitation Points: 125 Problem Inpect this code! http://2018shell.picoctf.com:56252 (link) Hint How do you inspect a website’s code on a browser? Check all the website code. Solution In this problem ‘Inspect Me’, you need to find the key or flags in the source files of the website provided. For that, you need to have basic knowledge …
Grep 1 Category : General Points: 75 Problem Can you find the flag in the file? This would be really obnoxious to look through by hand, see if you can find a faster way. You can also find the file in /problems/grep-1_3_8d9cff3d178c231ab735dfef3267a1c2 on the shell server. Hint grep tutorial Solution In this problem, you are given a …
Net Cat Category : General Points: 75 Problem Using netcat (nc) will be a necessity throughout your adventure. Can you connect to 2018shell.picoctf.com at port 22847 to get the flag? Hint nc tutorial Solution In this problem, we just need to connect to the shell with port number and we will get our flag. We are also provided with the …
Reversing Warmup 1 Category : Forensics Points: 50 Problem Throughout your journey, you will have to run many programs. Can you navigate to /problems/reversing-warmup-1_3_7c0eade7faf60ffe3485e12098e2a6c2 on the shell server and run this program to retrieve the flag? Hint If you are searching online, it might be worth finding how to execute a program in the command …
Forensics Warmup 1 Category : Forensics Points: 50 Problem Can you unzip this file for me and retreive the flag? Hint Make sure to submit the flag as picoCTF{XXXXX} Solution The file which has to be downloaded is in .zip format which can be easily opened with the help of a command-line or any software like Winrar …
General Warmup 1 Category : General Points: 50 Problem If I told you your grade was 0x41 in hexadecimal, what would it be in ASCII? Hint Submit your answer in our competition’s flag format. For example, if your answer was ‘hello’, you would submit ‘picoCTF{hello}’ as the flag. Solution The question is pretty straightforward that …
