picoCTF

picoCTF

This was the CTF I first started off with! In early July 2023 I was introduced to picoCTF and everything just kept going from there. It’s a really great beginner’s CTF that I personally have learned a lot from. As of late November 2023 have not solved all of the challenges, but I hope someday I will fully complete the site’s challenges!

If you’re interested in getting into CTFs, I highly recommend picoCTF as a starter.

Writeups

• Babygame01
  [100] <pwn/> <out-of-bounds/>
• Buffer Overflow 2
  [300] <pwn/> <buffer-overflow/> <ret-to-win/> <args-on-stack/> <gets/>
• Buffer Overflow 3
  [300] <pwn/> <buffer-overflow/> <stack-canary/> <ret-to-win/> <byte-by-byte/>
• Flag Leak
  [300] <pwn/> <format-strings/> <%p/>
• Rps
  [200] <pwn/> <strstr/>
• X Sixty What
  [200] <pwn/> <x64/> <buffer-overflow/>
• Aes Abc
  [400] <crypto/> <aes/>
• B00tl3grsa2
  [400] <crypto/> <rsa/>
• B00tl3grsa3
  [450] <crypto/> <rsa/> <multi-prime/>
• College Rowing Team
  [250] <crypto/> <rsa/> <unpadded/>
• Compress And Attack
  [130] <crypto/> <zlib/> <Salsa20/> <brute-force/>
• John Pollard
  [500] <crypto/> <rsa/> <certificate/>
• Mini Rsa (both)
  [300] <crypto/> <rsa/> <brute-force/> <small-e/>
• New Vignere
  [300] <crypto/> <vigenere/> <bits/>
• Nsa Backdoor
  [500] <crypto/> <diffie-hellman/> <rsa/> <smooth-primes/> <pollard-attack/>
• Rsa Pop Quiz
  [200] <crypto/> <rsa/>
• Scrambled Rsa
  [140] <crypto/> <rsa/> <brute-force/> <byte-by-byte/>
• Sra
  [400] <crypto/> <rsa/> <factorization/> <brute-force/>
• Sum O Primes
  [400] <crypto/> <rsa/>
• Very Smooth
  [300] <crypto/> <rsa/> <smooth-primes/> <pollard-attack/>
• Waves Over Lambda
  [300] <crypto/> <monoalphabetic-substitution/>
• Operation Oni
  [300] <forensics/> <disk/> <permissions/>
• Operation Orchid
  [400] <forensics/> <disk/> <openssl/>
• Sidechannel
  [400] <forensics/> <side-channel/> <timing/>
• Whitepages
  [250] <forensics/> <unicode/> <binary/>
• Otp Implementation
  [300] <rev/> <otp/> <byte-by-byte/>
• Reverse Cipher
  [300] <rev/>
• Irish Name Repo 1
  [300] <web/> <sql-injection/>
• Irish Name Repo 2
  [350] <web/> <sql-injection/>
• Irish Name Repo 3
  [400] <web/> <sql-injection/> <curl/>
• Roboto Sans
  [200] <web/> <robots.txt/>
• Secrets
  [200] <web/> <curl/>