$ ctf42

Challenges

Category
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Higher weight ≈ harder, more prestigious event.
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14 challenges · browse all techniques

Challenge CTF Weight Category Has
highly-optimized
#vm-reversing#bytecode-interpreter
 UofTCTF 2025 23.90 Reverse files wu 1
All_Worbled_Up
#python-bytecode-reversing#adler32
 UofTCTF 2024 23.90 Reverse files wu 3
CEOs_Lost_Password
#z3#constraint-solving#java-reversing
 UofTCTF 2024 23.90 Reverse files wu 1
CSS_Password
#css#logic-reconstruction
 UofTCTF 2024 23.90 Reverse files wu 3
Random_Maze
#z3#constraint-solving
 UofTCTF 2024 23.90 Reverse files wu 2
Love_Debug UofTCTF 2024 23.90 Reverse files wu 1
Baby_Obfuscated_Flag_Checker UofTCTF 2026 33.49 Reverse files
Bring_Your_Own_Program UofTCTF 2026 33.49 Reverse files
ML_Connoisseur UofTCTF 2026 33.49 Reverse files
Symbol_of_Hope UofTCTF 2026 33.49 Reverse files
Will_u_Accept_Some_Magic UofTCTF 2026 33.49 Reverse files
bloatware UofTCTF 2025 23.90 Reverse files
encrypted-flag UofTCTF 2025 23.90 Reverse files
py-flagchecker UofTCTF 2025 23.90 Reverse files