21yh79

Zhengzhou University

China

7th place

13530 points


Solves

Challenge Category Value Time
tux.tv Web III 150
Cowsay As A Service (CAAS) Web III 75
PwnyMart PWN I 250
Bug Bounty 5 PWN I 300
Bug Bounty 4 PWN I 250
Bug Bounty 3 PWN I 200
Integer Overflow PWN I 150
Bug Bounty 2 PWN I 150
Bug Bounty 1 PWN I 100
JS Jail Esoteric Languages 300
Meme Machine Web III 250
Budget Dalle Web III 100
ssrf 4 Web III 250
ssrf 3 Web III 200
ssrf 2 Web III 150
ssrf 1 Web III 100
printf read PWN II (Format) 150
00 - Stack Read PWN II (Format) 150
Format String Quiz PWN II (Format) 100
Word Counter II Web 75
XSS 2 Web II 200
XSS 1 Web II 100
Lockpicker Crypto II 200
RSA Crypto II 150
Technically RSA Crypto II 200
dialogue speed Reverse Engineering I 300
Flag Generator Reverse Engineering I 300
Word Counter I Web III 75
SUPERMEGACORP - Day 3 Reverse Engineering II 300
Crackme 2 Reverse Engineering II 150
SUPERMEGACORP - Day 2 Reverse Engineering II 100
New Intern 2 Web I 100
The Source of Your Problems Web I 50
Path To Success Web I 50
Inspect Me 4 Web I 50
Inspect Me 6 Web I 50
Inspect Me 7 Web I 50
Inspect Me 1 Web I 50
Inspect Me 3 Web I 50
New Intern 1 Web I 25
Decision Day 4 Web I 25
Decision Day 3 Web I 25
A Very Special Character 2 Intro to Terminal and Setup 30
Shell Basics 1 - Tab Completion Intro to Terminal and Setup 20
Shell Basics 0 Intro to Terminal and Setup 20
A Very Special Character Intro to Terminal and Setup 20
bandit12 Intro to Terminal and Setup 20
bandit11 Intro to Terminal and Setup 20
bandit10 Intro to Terminal and Setup 20
bandit09 Intro to Terminal and Setup 20
bandit08 Intro to Terminal and Setup 20
bandit07 Intro to Terminal and Setup 20
bandit06 Intro to Terminal and Setup 20
bandit05 Intro to Terminal and Setup 20
bandit04 Intro to Terminal and Setup 20
bandit03 Intro to Terminal and Setup 20
bandit02 Intro to Terminal and Setup 20
bandit01 Intro to Terminal and Setup 20
bandit00 Intro to Terminal and Setup 20
netcat Intro to Terminal and Setup 20
VIM Quiz Misc 100
Not Rough Crypto 400
Elgamal Oracle Crypto 350
Merkle Crypto 250
The Chars Are Friends Crypto 200
Odd One Out Crypto 200
Format 0 Pwn 50
International Crackdown Rev 200
encryption Rev 200
rot13 Rev 100
first_re Rev 100
Meeting Flag Networking Security 50
Java Meeting Flag Java Reverse Engineering 50
Meeting Flag Opsec 50
PWN III Meeting Flag PWN III (ROP) 50
Web III Meeting Flag Web III 50
Meeting Flag PWN II (Format) 50
Crypto I Meeting Flag Crypto I 50
Meeting Flag Ethics and Law 50
Python RE 1 Easy rev Reverse Engineering I 75
Flip Out Block/Stream Ciphers 250
Add One Block/Stream Ciphers 200
First AES Block/Stream Ciphers 100
Meeting Flag Block/Stream Ciphers 50
Meeting Flag Esoteric Languages 50
Password Cracking Meeting Flag Password Cracking 50
Web II Meeting Flag Web II 50
Setup Meeting Flag Intro to Terminal and Setup 50
Meeting Flag Game Hacking 100
OSINT I Meeting Flag OSINT I 50
Meeting Flag Python Jails 50
Meeting Flag Forensics I 50
Web I Meeting Flag Web I 50
RE II Meeting Flag Reverse Engineering II 50
Assembly Meeting Flag x86_64 Assembly 50
Crypto II Meeting Flag Crypto II 50
PWN I Meeting Flag PWN I 50
Reverse Engineering I Meeting Flag Reverse Engineering I 50
Crypto IV Meeting Flag Crypto IV: Elliptic Curve Crypto 50
PWN IV Meeting Flag PWN IV (Heap) 50
Kernel PWN Meeting Flag Kernel PWN 50
Meeting Flag Blockchains 100
Meeting Flag Security Careers 100
Meeting Flag Welcome Back! 100
More Hash More Better Crypto 100
basic64 Reverse Engineering I 100
Easy RSA Crypto I 200
Totient Turmoil Crypto I 150
flag_format Crypto I 100
Vigenère Visionary Crypto I 100
First XOR Crypto I 50
Decision Day 1 Web I 25
SIGPwny Discord Welcome 50
Natas 4 Shell 20
Natas 3 Shell 20
Natas 2 Shell 20
Natas 1 Shell 20
Natas 0 Shell 20
Calculator Escape 0 Jail 25
Crackme 1 Reverse Engineering II 100
Crackme 0.5 Reverse Engineering II 75
Crackme 0 Reverse Engineering II 50
Buried in the Sand Reverse Engineering II 50
Layer 6 Networking Security 75
Layer 4 Networking Security 50
Layer 3 Networking Security 50
File Transfer Networking Security 50
Layer 2 Networking Security 30
Layer 1 Networking Security 30
PM Hash Password Cracking 150
Hashcat 1 Password Cracking 50
Anakin's PC Password Cracking 50
Generate MD5 Hash Password Cracking 25
Pyjail 2 Python Jails 200
Pyjail 1 Python Jails 150
Pyjail 0.5 Python Jails 30
Pyjail 0 Python Jails 20
Make a Difference Forensics I 100
Bruh 1: lsbruh Forensics I 100
Partition Forensics I 50
Inside the Hackerman Forensics I 50
Bruh 0: Exif Forensics I 50
openme! Forensics I 20
Just Another Logo Forensics I 20
OSINT Waiver OSINT I 10
Welcome to SIGPwny! Welcome 50