Growing Up (Misc - 200 points) [SHA2017 CTF]
This was a JuniorCTF given as the problem Growing Up in SHA2017 CTF. JuniorCTF was a good one for new people who might want to start with CTFs.
Binary
1. Find The Flag
Use
strings
3. Hidden Message
ApkTool
4. Jump Around
Requires knowing x86 Assembly Language.
Observe the jumps
4. FlipACoin
Requires knowing x86 Assembly Language, little hard on Windows. Hint : ne -> mp
Web
1. In Your Head
HTTP Headers
2. Broken Image
Base64
2. Old School
Browser Spoofing
3. Location
Open up Network Tab in the Console and then Click on the Link. You can also try with some command line verbose cURL.
4. Ping
You are pinging via a Linux Machine. Hint: Bash
Crypto
1. All about the Base64
Base64 Encoding/Decoding
1. Rotation
ROT-n or ROT-X
2. Substitute Teacher
Substitution Cipher, plaintext is in English Language along with flag at the end.
2. Exclusive or
As name suggests, XOR cipher. Key-length=1
3. Transposition
As the name tells, Transposition Cipher
Network
Prerequisites - Wireshark
1. Download
flag.jpg
2. Wanna Buy A Flag?
TCP Stream.
3. Weird Website
Similar to Download above.
4. Captured Mail
Similar to Download above.
Misc
Prerequisite - fcrackzip for the Zip Files
1. Zipfile One
Check Prerequisite
2. Zipfile Two
Check Prerequisite
3. Reverse
It’s not reverse! It’s swap! Contact for further hints.