zer0pts 2021

The second zer0pts CTF event is coming this March!

What you'll see: exciting challenges of varying difficulty and categories (pwn, crypto, web, reversing and misc) What you'll never see: guessy challenges

Duration: 36 hours from March 6 (Saturday) 00:00 UTC Website: https://2021.ctf.zer0pts.com/index.html

Our generous sponsors:

GitHub Security Lab: https://securitylab.github.com/
Tezos Community: https://tezoscommons.org/
Defenit: https://defenit.kr/

Web 6

Challenge	Has
baby_sqli #sql-injection #sqlite #escape-bypass #authentication-bypass	files wu 2
guestfs_afr	files
kantan_calc #nodejs #vm-escape #sandbox-escape	files wu 3
notpdfgen	files
pdfGen	files
simple_blog #xss #csp-bypass #trusted-types	files wu 3

Pwn 6

Challenge	Has
gorypto	files
nasm_kit #sandbox-escape #shellcode #map-fixed #aslr-bypass	files wu 3
not_beginners_stack #buffer-overflow #stack-pivot #shellcode	files wu 3
oneshot #oob-write #got-overwrite #integer-overflow	files wu 2
safe_vector #out-of-bounds (oob)#negative-index #tcache-poisoning #cpp	files wu 1
stopwatch #alloca #stack-manipulation #canary-leak #ret2libc	files wu 2

Reverse 6

Challenge	Has
Subleq64	files
SuperSecretLogin	files
infected #ld-preload #function-hooking #backdoor	files wu 3
not_beginners_rev	files
spotlight	files
syscall_777 #reversing #custom-syscall #xor	files wu 1

Crypto 8

Challenge	Has
easy_pseudo_random #blum-blum-shub #lll (lll-lattice-reduction)#lattice #msb-recovery	files wu 2
janken_vs_yoshiking #elgamal #quadratic-residue #legendre-symbol	files wu 2
not_mordell_primes #rsa #elliptic-curve #resultant #point-recovery	files wu 1
ot_or_not_ot #oblivious-transfer #legendre-symbol #aes-cbc	files wu 2
pure_division	files
signme #rsa #signature-forgery #weak-prng #seed-bruteforce	files wu 1
triple_aes	files
warsamup #rsa #franklin-reiter #related-message	files wu 3