PicoCTF 2018 Writeups

This is a collection of my writeups for challenges in PicoCTF 2018

(I left out the writeups of the simpler challenges due to my busy schedule)

Details

2018-09-28 to 2018-10-12

Score

Position: 107

Points: 25035 of 35135

Solved

Challenge	Category	Points	Remarks
assembly-0	Reversing	150
assembly-1	Reversing	200
assembly-2	Reversing	250
assembly-3	Reversing	400
assembly-4	Reversing	550
be-quick-or-be-dead-1	Reversing	200
be-quick-or-be-dead-2	Reversing	275
be-quick-or-be-dead-3	Reversing	350
circuit123	Reversing	800
keygen-me-1	Reversing	400
keygen-me-2	Reversing	750
quackme up	Reversing	350
quackme	Reversing	200
Radix's Terminal	Reversing	400
:	:	:	:
caesar cipher 2	Cryptography	250
Crypto Warmup 1	Cryptography	75
eleCTRic	Cryptography	400
HEEEEEEERE'S Johnny	Cryptography	100
Magic Padding Oracle	Cryptography	450
rsa-madlibs	Cryptography	250
Safe RSA	Cryptography	250
SpyFi	Cryptography	300
Super Safe RSA 2	Cryptography	425
Super Safe RSA 3	Cryptography	600
Super Safe RSA	Cryptography	350
:	:	:	:
Aca-Shell-A	General Skills	150
environ	General Skills	150
in out error	General Skills	275
learn gdb	General Skills	300
roulette	General Skills	350
script me	General Skills	500
store	General Skills	400
what base is this?	General Skills	200
you can't see me	General Skills	200
:	:	:	:
core	Forensics	350
Desrouleaux	Forensics	150
LoadSomeBits	Forensics	550
Malware Shops	Forensics	400
Reading Between the Eyes	Forensics	150
Recovering From the Snap	Forensics	150
:	:	:	:
are you root?	Binary Exploitation	550
authenticate	Binary Exploitation	350
buffer overflow 0	Binary Exploitation	150
buffer overflow 1	Binary Exploitation	200
buffer overflow 2	Binary Exploitation	250
buffer overflow 3	Binary Exploitation	450
echooo	Binary Exploitation	300
got-2-learn-libc	Binary Exploitation	250
got-shell?	Binary Exploitation	350
rop chain	Binary Exploitation	350
shellcode	Binary Exploitation	200
:	:	:	:
A Simple Question	Web Exploitation	650
Artisinal Handcrafted HTTP 3	Web Exploitation	300
fancy-alive-monitoring	Web Exploitation	400
Flaskcards and Freedom	Web Exploitation	900
Flaskcards Skeleton Key	Web Exploitation	600
Flaskcards	Web Exploitation	350
No Login	Web Exploitation	200
Secure Logon	Web Exploitation	500
The Vault	Web Exploitation	250