OMH 2021

official repo

Organised by p4. Due to COVID, this year Oh My H@ck International Conference will continue the tradition of the CONFidence CTF.

Duration: 24h Format: online, jeopardy, team-based Categories: web, re, crypto, misc, pwn, forensics Contact (IRC): #p4team @ irc.freenode.org Contact (e-mail): team@p4.team Team size: Unlimited

CTF is sponsored by HUAWEI

Web 1

Challenge	Has
code_review	files

Pwn 3

Challenge	Has
cups_pdf	files
framed #uninitialized-stack-variable #partial-overwrite #ret2win	files wu 1
my_little_pwnie #format-string #return-address-overwrite #one-gadget	files wu 1

Reverse 4

Challenge	Has
flagsaver #dotnet-reversing #image-unscramble	files wu 2
grub #grub-cfg #regex-constraints #z3	files wu 2
playing_cards	files
remote_reports	files

Crypto 7

Challenge	Has
almost_perfect #vigenere #word-frequency-analysis #key-reuse	files wu 1
cry_for_help	files
csprng	files
fiend	files
hotlinker	files
jamal	files
tower_of_power	files

Misc 1

Challenge	Has
steg	files