$ ctf42

Challenges

Category
Difficulty
CTFtime weight
–
Higher weight ≈ harder, more prestigious event.
Year
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Must have
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271 challenges · browse all techniques

Challenge CTF Weight Category Has
elite_ball_knowledge GreyCatTheFlag 2026 Quals – Pwn files
filter_flag GreyCatTheFlag 2026 Quals – Crypto files
ghidra_gangster_edition GreyCatTheFlag 2026 Quals – Reverse files
lights_out GreyCatTheFlag 2026 Quals – Reverse files
my_greycat GreyCatTheFlag 2026 Quals – Reverse files
spidr GreyCatTheFlag 2026 Quals – Reverse files
E_Files LagNCrash 2026 25.00 Misc files
Flag_Transfer_Protocol LagNCrash 2026 25.00 Reverse files
Heartbleed LagNCrash 2026 25.00 Forensics files
Keeper LagNCrash 2026 25.00 Forensics files
Lorem_ipsum LagNCrash 2026 25.00 Forensics files
Operation_Conductor_Part_1 LagNCrash 2026 25.00 Forensics files
Operation_Conductor_Part_2 LagNCrash 2026 25.00 OSINT files
PRNGbreakthrough LagNCrash 2026 25.00 Crypto files
Ping2Win LagNCrash 2026 25.00 Forensics files
PowerSploit LagNCrash 2026 25.00 Forensics files
ProtoCipher67 LagNCrash 2026 25.00 Crypto files
Puppy_Petsmart LagNCrash 2026 25.00 Pwn files
Quarrying_Around LagNCrash 2026 25.00 OSINT files
Round_and_Round LagNCrash 2026 25.00 Crypto files
Rubics_Cube LagNCrash 2026 25.00 Misc files
Spring_will_be_here_soon... LagNCrash 2026 25.00 OSINT files
The_Oregon_Trail LagNCrash 2026 25.00 OSINT files
baby_heap LagNCrash 2026 25.00 Pwn files
do_it LagNCrash 2026 25.00 Pwn files
effc LagNCrash 2026 25.00 Reverse files
got_or_not LagNCrash 2026 25.00 Reverse files
hypebeast LagNCrash 2026 25.00 OSINT files
hyperboros LagNCrash 2026 25.00 Misc files
infinite_bit_security LagNCrash 2026 25.00 Crypto files
infohazard LagNCrash 2026 25.00 Reverse files
intro_to_malloc LagNCrash 2026 25.00 Pwn files
john LagNCrash 2026 25.00 OSINT files
just_a_osint_challenge LagNCrash 2026 25.00 OSINT files
lets_go LagNCrash 2026 25.00 Reverse files
lf_lf_lfsr_sr_sr LagNCrash 2026 25.00 Crypto files
looping_the_frames LagNCrash 2026 25.00 Pwn files
mixed_signals LagNCrash 2026 25.00 Pwn files
overly_simplified_pwn_challenge_v2 LagNCrash 2026 25.00 Pwn files
pyj_pyjail_ail LagNCrash 2026 25.00 Misc files