picoCTF 2022 Write-Up

Welcome to my write-up for all challenges in picoCTF 2022.

Table of Contents

• General Information
• Challenges
  • Category 1: Reverse Engineering
  • Category 2: Cryptography
  • Category 3: Web Exploitation
  • Category 4: Forensics
  • Category 5: Binary Exploitation

General Information

picoCTF 2022 is basically a big cyber competition made for all kinds of folks, from newbies to seasoned pros. They throw all sorts of challenges at you, covering everything from hacking to code-breaking. Here, I'm laying out how I tackled each challenge and what I learned along the way. Let's dive in!

Challenges

Category 0: General Skills

• Challenge: codebook
• Challenge: convertme_py
• Challenge: fixme1_py
• Challenge: fixme2_py
• Challenge: glitch_cat
• Challenge: hashing_job_app
• Challenge: pw_crack1
• Challenge: pw_crack2
• Challenge: pw_crack3
• Challenge: pw_crack4
• Challenge: pw_crack5
• Challenge: runme.py
• Challenge: serpentine

Category 1: Reverse Engineering

• Challenge: Bbbbloat
• Challenge: file-run1
• Challenge: file-run2
• Challenge: fresh_java
• Challenge: bloat_py
• Challenge: patchme.py
• Challenge: safe_opener
• Challenge: unpackme.py
• Challenge: unpackme
• Challenge: GDB_Test_Drive
• Challenge: keygenme

Category 2: Cryptography

• Challenge: basic_mod1
• Challenge: basic_mod2
• Challenge: credstuff
• Challenge: morse-code
• Challenge: rail-fence
• Challenge: substitution0
• Challenge: substitution1
• Challenge: substitution2
• Challenge: transposition-trial
• Challenge: vigenere
• Challenge: very_smooth
• Challenge: sequences

Category 3: Web Exploitation

• Challenge: inspect_html
• Challenge: Includes
• Challenge: local_authority
• Challenge: search_source
• Challenge: forbidden_paths
• Challenge: power_cookie
• Challenge: roboto_sans
• Challenge: secrets
• Challenge: sql_direct

Category 4: Forensics

• Challenge: 'Enhance!'
• Challenge: file_types
• Challenge: lookey_here
• Challenge: packet_primer
• Challenge: redaction_gone_wrong
• Challenge: sleuthkit_intro
• Challenge: sleuthkit_apprentice
• Challenge: eavesdrop
• Challenge: st3g0
• Challenge: operation_orchid .

Category 5: Binary Exploitation

• Challenge: basic_file_exploit
• Challenge: buffer_overflow0
• Challenge: buffer_overflow1
• Challenge: RPS
• Challenge: x-sixty-what
• Challenge: buffer_overflow2
• Challenge: buffer_overflow3
• Challenge: flag_leak
• Challenge: wine
• Challenge: function_overwrite
• Challenge: ropfu