CTFtime.org

Tasks

NamePointsTagsWriteups
Deep down in the rabbit hole 1
Santa Knows Crypto 472 crypto 0
Rudolph Cipher V5 485 crypto 1
What's Up, Santa? 451 web 1
Hashed Presents v2.0 497 lattice crypto 1
Hashed Presents 472 lattice crypto 1
Dox the Yak 50 osint 1
Ancient Christmas 445 image-processing 1
Krampus' Return 349 python jail python2 1
45 Shades of Christmas 280 image base64 1
Robin's Wish 119 rsa-like crypto 1
Dox The Grinch 50 osint 1
Best Friends 435 misc 1
Blindfolded 491 blind pwn heap 3
Eggnog 409 pwn lcg 1
Emu 2.0 50 emulation 3
FUNction Plotter 50 misc netcat 2
DeFUNct Ransomware 50 crypto 1
Pythagoreic Pancakes 413 ppc 2
Orakel 152 ppc 2
PhotonOS 2 488 pwn kernel 1
PhotonOS 1 478 kernel pwn 1
The Elf Postmaster 378 pwn binaryexploitation 2
Don't Jump 500 re 1
Secret Journal 500 re 1
Discount VMProtect 465 re 6
Kernel Crackme 500 re 5
Lapland Mission 50 re 3
Quantum Secret 482 quantum 1
Datalines 488 quantum 1
Reverthable X-Math 85 lisp re 2
Q-Trivia 50 quantum 2
Last Christmas 383 re 3
Back to 2007 499 forensics 2
Information Gathering Automation 500 miscellaneous 1
Santa's Letter 250 forensics 3
Eggnog 409 shellcode prng 1
Mercenary Hat Factory 500 jwt web ssti 2
Santa's crackme 25 re 6
A trip to grandma's house 500 forensics 2
X-MAS Helper 50 web 3
SNT DCR SHP 50 misc 2
Santa’s Letter 50 forensics 1
Bobi’s wHack 25 osint 2
The Weather 127 pwn 3
Santa’s Forensics 101 25 forensics 3
SN0WVERFL0W 25 bufferoverflow pwn 6
Mata Nui’s Cookies 25 crypto 3
Execute No Evil 500 sqli web 5
Roboworld 500 web 7
Rigged Election 500 web 5
Sequel Fun 25 web exploitation 7