picoCTF 2018 Writeup

This CTF was done with @pauxy and @StopDuckRoll

Special thanks to @LFlare for helping out with a few challenges!

Just a casual warmup before my school's annual CTF.

Content Page

• Binary Exploitation
• Cryptography
• Forensics
• General Skills
• Reversing
• Web Exploitation

Binary Exploitation

Challenges	Points	Status
buffer overflow 0	150	Solved
buffer overflow 1	200	Solved
leak-me	200	Solved
shellcode	200	Solved
buffer overflow 2	250	Solved
got-2-learn-libc	250	Solved
echooo	300	Solved
authenticate	350	Solved
got-shell?	350	Solved
rop chain	350	Solved
buffer overflow 3	450	Unsolved
echo back	500	Unsolved
are you root?	550	Unsolved
gps	550	Unsolved
can-you-gets-me	650	Solved
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???

Cryptography

Challenges	Points	Status
Crypto Warmup 1	75	Solved
Crypto Warmup 2	75	Solved
HEEEEEEERE'S Johnny!	100	Solved
caesar cipher 1	150	Solved
hertz	150	Solved
blaise's cipher	200	Solved
hertz 2	200	Solved
Safe RSA	250	Solved
caesar cipher 2	250	Solved
rsa-madlibs	250	Solved
SpyFi	300	Unsolved
Super Safe RSA	350	Solved
Super Safe RSA 2	425	Solved
Magic Padding Oracle	450	Unsolved
Super Safe RSA 3	600	Unsolved
James Brahm Returns	700	Unolved
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???

Forensics

Challenges	Points	Status
Forensics Warmup 1	50	Solved
Forensics Warmup 2	50	Solved
Desrouleaux	150	Solved
Reading Between the Eyes	150	Solved
Recovering From the Snap	150	Solved
admin panel	150	Solved
hex editor	150	Solved
Truly an Artist	200	Solved
now you don't	200	Solved
Ext Super Magic	250	Unsolved
Lying Out	250	Solved
What's My Name?	250	Solved
core	350	Unsolved
Malware Shops	400	Unsolved
LoadSomeBits	550	Solved
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???

General Skills

Challenges	Points	Status
General Skills 1	50	Solved
General Skills 2	50	Solved
General Skills 3	50	Solved
Resources	50	Solved
grep 1	75	Solved
net cat	75	Solved
strings	100	Solved
pipe	110	Solved
grep 2	125	Solved
Aca-Shell-A	150	Solved
environ	150	Solved
ssh-keyz	150	Solved
what base is this?	200	Solved
you can't see me	200	Solved
absolutely relative	200	Solved
in out error	275	Solved
learn gdb	300	Solved
roulette	350	Solved
store	400	Solved
script me	500	Unsolved
Dog or Frog	900	Unsolved

Reversing

Challenges	Points	Status
Reversing Warmup 1	50	Solved
Reversing Warmup 2	50	Solved
assembly-0	150	Solved
assembly-1	200	Solved
be-quick-or-be-dead-1	200	Solved
quackme	200	Solved
assembly-2	250	Solved
be-quick-or-be-dead-2	275	Solved
be-quick-or-be-dead-3	350	Unsolved
quackme up	350	Unsolved
Radix's Terminal	400	Solved
assembly-3	400	Solved
keygen-me-1	400	Unsolved
assembly-4	550	Solved
special-pw	600	Unsolved
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???
Unknown	???	???

Web Exploitation

Challenges	Points	Status
Inspect Me	125	Solved
Client Side is Still Bad	150	Solved
Logon	150	Solved
Irish Name Repo	200	Solved
Mr. Robots	200	Solved
No Login	200	Solved
Secret Agent	200	Solved
Buttons	250	Solved
The Vault	250	Solved
Artisinal Handcrafted HTTP 3	300	Solved
Flaskcards	350	Solved
fancy-alive-monitoring	400	Solved
Secure Logon	500	Unsolved
Flaskcards Skeleton Key	600	Unsolved
Help Me Reset 2	600	Solved
A Simple Question	650	Solved
LambDash 3	800	Unsolved
Unknown	???	???
Unknown	???	???
Unknown	???	???