picoCTF 2018 Writeup

Content Page

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

Favorite Challenges

• Secured Logon
• buffer overflow 0
• Script Me
• caesar cipher 1
• Soon...

Binary Exploitation

Completed(0/20)

Challenges	Points	Solved
buffer overflow 0	150	Yes
leak-me	200
shellcode	200
buffer overflow 2	250
echooo	300
got-shell?	350
...	...

Cryptography

Completed(3/20)

Challenges	Points	Solved
Crypto Warmup 1	75	Yes
Crypto Warmup 2	75	Yes
HEEEEEEERE'S Johnny!	100	Yes
caesar cipher 1	150	Yes
hertz	150
rsa-madlibs	250
...	...

Forensics

Completed(2/24)

Challenges	Points	Solved
Forensics Warmup 1	50	Yes
Forensics Warmup 2	50	Yes
Desrouleaux	150
Reading Between the Eyes	150
Recovering From the Snap	150
admin panel	150
hex editor	150
Truly an Artist	200
now you don't	200
LoadSomeBits	550
...	...

General Skills

Completed(11/20)

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

Reversing Engineering

Completed(2/21)

Challenges	Points	Solved
Reversing Warmup 1	50	Yes
Reversing Warmup 2	50	Yes
assembly-0	150
be-quick-or-be-dead-1	200
...	...

Web Exploitation

Completed(11/21)

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