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419 challenges are currently available for a total of 1840 points.

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Sandboxes Status

Challenges
SysAdmin Part 1 sandbox is Up Secure Mail sandbox is Up
Looking for god in your life? sandbox is Up XSS Challenge 1 sandbox is Up
Captcha I sandbox is Up Propaganda mail sandbox is Up
Basics of Linux x64 shellcoding sandbox is Up Level1 Pwnage Linux Level Up sandbox is Up
Level1 Pwnage Linux x86_64 sandbox is Up Virtual World sandbox is Up
Hot Single Mom sandbox is Up Bash Jail 1 sandbox is Up
Sometime there is no buffer overflow sandbox is Up Delivery As A Service sandbox is Up
Can you get the service password sandbox is Up Just another useless service sandbox is Up

Challenges

Coding Challenges (17)

Challenges descriptions Points Validation Author
Hash me please 2 3859 Mr.Un1k0d3r
Ask your grandpa! 2 1344 Mr.Un1k0d3r's Dad
Hash me reloaded 3 2057 Mr.Un1k0d3r
I hate mathematics 3 2176 Mr.Un1k0d3r
Ask your grandpa again! 4 472 Mr.Un1k0d3r's Dad
Hash breaker 4 1670 Mr.Un1k0d3r
I saw a little elf 4 617 Mr.Un1k0d3r
Hash breaker reloaded 5 960 Mr.Un1k0d3r
Execute me if you can 5 471 Mr.Un1k0d3r
Read me if you can 6 512 Mr.Un1k0d3r
Ascii Art 6 770 Mr.Un1k0d3r
Execute me if you can again 6 245 Mr.Un1k0d3r
Hash breaker reloaded again 6 319 Mr.Un1k0d3r
Xor me if you can 6 499 Mr.Un1k0d3r
Find the right word 7 412 Mr.Un1k0d3r
Number game 7 387 Mr.Un1k0d3r remade by theindian
Classic Sudoku 7 341 Mr.Un1k0d3r remade by dread_knight

Cryptography (36)

Challenges descriptions Points Validation Author
Some martian message 1 8373 Mr.Un1k0d3r
You're Drunk! 1 3003 Mr.Un1k0d3r
File recovery 1 3727 Mr.Un1k0d3r
Fashion Victim 2 735 GoSec CTF 2014
Martian message part 2 2 3418 Mr.Un1k0d3r
Public key recovery 2 1801 Mr.Un1k0d3r
I Lost my password 3 1355 Mr.Un1k0d3r
Let's Play Scrabble! 3 103 Madness
Hangovers and more: Bacon 3 647 SynneR
Martian message part 3 3 1377 Mr.Un1k0d3r
Can you understand this sentence? 3 809 Mr.Un1k0d3r
Encrypted Zip 4 683 Mr.Un1k0d3r
Crypto over the network 4 159 Mr.Un1k0d3r remade by theindian
Crypto Object 4 228 GoSec CTF 2014
Crypto Leak 4 76 NSEC 2018 (Towel)
SSO Service 4 33 Mr.Un1k0d3r (Trustwave CTF 2020)
Is it a secure string? 5 314 Cedrick Chaput
Let's Play Scrabble! Part 2 5 40 Madness
Jabber 5 18 Madness
Free Flag Encrypter 5 25 Towel
Guess the number 6 41 cyberguru
TotalSecure Message Encrypter 6 110 Towel
Welcome to the asylum 6 63 GoSec CTF 2014
Pattern is the key 6 52 Mr.Un1k0d3r
Malcolm 7 33 Trustwave CTF 2020
Jabber Part 2 7 12 Madness
Homemade craptography #2 7 17 HoLyVieR ft. large software company
Homemade Craptography 8 13 NSEC 2018 (HoLyVieR)
Mars Log 8 14 NSEC 2018 (Towel)
Crypto is not good as you think 8 194 Mr.Un1k0d3r
Find your path 9 22 cyberguru
Rusty RSA message signing service 9 17 b0n0n & An0n remade by dysleixa
Spies 9 38 CS Games 2016 (HoLyVieR)
Polly Wants a Cracker 10 9 Madness
TotalSecure Message Encrypter V2 10 23 Towel
Unicorn As A Service 11 13 Towel

Exotic Data Storage (4)

Challenges descriptions Points Validation Author
Just another login form 2 1616 Mr.Un1k0d3r
DON'T login as admin 2 63 mbergeron
I forgot my password 3 56 mbergeron
Inspiration 6 59 NSEC 2019 (becojo)

Forensics (28)

Challenges descriptions Points Validation Author
I made a dd of Agent Smith usb key 1 4020 Cedrick Chaput
Who I am part 2 1 1128 Mr.Un1k0d3r
Meat Loaf 2 524 Ekse
Who I am? 2 1394 Mr.Un1k0d3r
Dr. Pouce 2 2716 Cedrick Chaput
Attention Dinosaure Survive 2 1675 PRL
The good, the bad and the ugly 2 247 Mr.Un1k0d3r
1 / 3 Do not waste the environment 2 1157 PRL
Hide my ass in my home! 2 1860 Cedrick Chaput
Hey Chuck where is the flag? 2 1848 Mr.Un1k0d3r
I love cat 2 986 Mr.Un1k0d3r
The words flew but writing remains 3 203 Martin Dube
2 / 3 Did you see my desktop? 3 944 PRL
Are you Twisted Insane? 3 34 Cedrick Feat Mr.Un1k0d3r
Someone steal my flag! 3 518 Mr.Un1k0d3r
802.1X Part 1 4 91 NSEC 2015
R.I.P MsPaint 4 125 Misker
3 / 3 Suspicious account password? 4 768 PRL
Poor internet connection 4 445 Cedrick Chaput
Agent Smith reloaded 4 309 Cedrick Chaput
Someone steal my flag again 5 206 GoSec CTF 2014
We got breached 5 274 Mr.Un1k0d3r
Ping pong 5 114 SynneR
Spy my girl 5 250 Cedrick Chaput
Russian Crypto Roulette 6 86 SynneR
We got breached again 6 184 Mr.Un1k0d3r
Really Depressed Protocol 7 90 SynneR
802.1X Part 2 8 58 NSEC 2015

Jail Escaping (21)

Challenges descriptions Points Validation Author
Bash Jail 1 1 2798 Mr.Un1k0d3r
Bash Jail 2 2 1785 Mr.Un1k0d3r
Bash Jail 3 3 1023 Mr.Un1k0d3r
Bash Jail 4 4 555 Mr.Un1k0d3r
Bash Jail 5 6 248 Mr.Un1k0d3r
Bash Jail 6 8 38 Garigouster
Bash Jail 7 12 20 Garigouster
C Jail 1 1 481 Mr.Un1k0d3r
C Jail 2 2 331 Mr.Un1k0d3r
C Jail 3 3 270 Mr.Un1k0d3r
C Jail 4 5 32 Garigouster
C Jail 5 7 21 Garigouster
C Jail 6 14 15 Garigouster
PHP Jail 1 1 661 Mr.Un1k0d3r
PHP Jail 2 2 453 Mr.Un1k0d3r
PHP Jail 3 3 333 Mr.Un1k0d3r
PHP Jail 4 4 266 Mr.Un1k0d3r
PHP Jail 5 6 231 Mr.Un1k0d3r
PyJail 1 3 278 Martin Dube
PyJail 2 5 150 Martin Dube
PyJail 3 6 56 Martin Dube

JavaScript (10)

Challenges descriptions Points Validation Author
Client side validation is bad! 1 7931 Mr.Un1k0d3r
Hashing is more secure 1 6829 Mr.Un1k0d3r
Then obfuscation is more secure 1 5224 Mr.Un1k0d3r
Why not? 2 4044 Mr.Un1k0d3r
Valid key required 2 1113 Francois Lajeunesse
Most Secure Crypto Algo 2 1886 Mr.Un1k0d3r
Why not be more secure? 5 711 Mr.Un1k0d3r
WTF Lol! 6 346 HoLyVieR
Interstellar PhoneBook 6 46 NSEC 2018 (HoLyVieR)
Beauty and the beast 7 49 Mr.Un1k0d3r

Malware Analysis (22)

Challenges descriptions Points Validation Author
APT 1337 4 58 NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1 1 792 Mr.Un1k0d3r
Capture 1 Part 2 1 267 Mr.Un1k0d3r
Capture 1 Part 3 1 293 Mr.Un1k0d3r
Capture 1 Part 4 2 63 Mr.Un1k0d3r
Capture 1 Part 5 3 90 Mr.Un1k0d3r
Capture 1 Part 6 3 193 Mr.Un1k0d3r
Capture 1 Part 7 3 57 Mr.Un1k0d3r
Capture 2 Part 1 1 75 Mr.Un1k0d3r
Capture 2 Part 2 1 145 Mr.Un1k0d3r
Capture 2 Part 3 1 146 Mr.Un1k0d3r
Capture 2 Part 4 3 142 Mr.Un1k0d3r
Capture 2 Part 5 4 49 Mr.Un1k0d3r
Capture 2 Part 6 7 24 Mr.Un1k0d3r
Evil X 8 13 cyberguru
Just Another MBR Ransomware 8 23 Towel
RAO democracy 4 67 NSEC 2017 (Mr.Un1k0d3r)
This malware excels Part 1 2 53 HF 2020 (nic-lovin)
This malware excels Part 2 1 52 HF 2020 (nic-lovin)
This malware excels Part 3 2 35 HF 2020 (nic-lovin)
This malware excels Part 4 5 21 HF 2020 (nic-lovin)
WebShell of Hell 5 25 An0n

NorthSec 2021 (10)

Challenges descriptions Points Validation Author
Crapto Century 3 79 NSEC 2021 (davidlebr1)
Farmer Search (1/3) 3 51 NSEC 2021 (mbergeron)
Farmer Search (2/3) 2 41 NSEC 2021 (mbergeron)
Farmer Search (3/3) 4 32 NSEC 2021 (mbergeron)
Knight Portal (1/3) 2 113 NSEC 2021 (mbergeron)
Knight Portal (2/3) 2 78 NSEC 2021 (mbergeron)
Knight Portal (3/3) 5 29 NSEC 2021 (mbergeron)
Reading Through the Cloud 4 51 NSEC 2021 (davidlebr1)
Scammed again 3 8 mnadeau
The Cabal 2 46 mnadeau

NorthSec 2022 (4)

Challenges descriptions Points Validation Author
Email Template (1/3) 2 32 mbergeron
Email Template (2/3) 5 13 mbergeron
Email Template (3/3) 4 6 mbergeron
Stock Options Portal 6 9 SynneR

NorthSec 2023 (27)

Challenges descriptions Points Validation Author
Ask G.O.D (01/18) 3 31 mbergeron
Ask G.O.D (02/18) 1 17 mbergeron
Ask G.O.D (03/18) 2 16 mbergeron
Ask G.O.D (04/18) 5 15 mbergeron
Ask G.O.D (05/18) 3 15 mbergeron
Ask G.O.D (06/18) 1 31 mbergeron
Ask G.O.D (07/18) 1 26 mbergeron
Ask G.O.D (08/18) 3 16 mbergeron
Ask G.O.D (09/18) 7 11 mbergeron
Ask G.O.D (10/18) 2 22 mbergeron
Ask G.O.D (11/18) 2 22 mbergeron
Ask G.O.D (12/18) 2 22 mbergeron
Ask G.O.D (13/18) 1 25 mbergeron
Ask G.O.D (14/18) 2 26 mbergeron
Ask G.O.D (15/18) 1 26 mbergeron
Ask G.O.D (16/18) 2 16 mbergeron
Ask G.O.D (17/18) 2 16 mbergeron
Ask G.O.D (18/18) 2 17 mbergeron
Corporate Cafeteria Menu 6 9 SynneR
Orchestry (1/3) 1 12 dlebrun
Orchestry (2/3) 4 5 dlebrun
Orchestry (3/3) 2 4 dlebrun
The G.O.D Archive 12 5 alxbl
We Call it Spring (1/4) 1 11 dlebrun
We Call it Spring (2/4) 1 11 dlebrun
We Call it Spring (3/4) 5 5 dlebrun
We Call it Spring (4/4) 2 5 dlebrun

NorthSec 2024 (7)

Challenges descriptions Points Validation Author
Anti-Allergens Immune System 4 7 mbergeron
Appendix System 2 30 mbergeron
Integumentary System (1/2) 3 1 mbergeron
Integumentary System (2/2) 5 1 mbergeron
Linguistic Memory System 5 4 mbergeron
Photographic Memory System (1/2) 3 6 mbergeron
Photographic Memory System (2/2) 3 6 mbergeron

NorthSec 2025 (21)

Challenges descriptions Points Validation Author
Disabling the camera operator (1/4) 1 8 SynneR
Disabling the camera operator (2/4) 3 8 SynneR
Disabling the camera operator (3/4) 4 4 SynneR
Disabling the camera operator (4/4) 4 2 SynneR
LED Display Controller (1/3) 4 5 mbergeron
LED Display Controller (2/3) 2 5 mbergeron
LED Display Controller (3/3) 3 4 mbergeron
Motor Sensors - Agent 1 (1/3) 1 6 mbergeron
Motor Sensors - Agent 1 (2/3) 5 1 mbergeron
Motor Sensors - Agent 1 (3/3) 2 1 mbergeron
Motor Sensors - Agent 2 (1/3) 4 1 mbergeron
Motor Sensors - Agent 2 (2/3) 2 1 mbergeron
Motor Sensors - Agent 2 (3/3) 3 1 mbergeron
Motor Sensors - Agent 3 (1/2) 5 1 mbergeron
Motor Sensors - Agent 3 (2/2) 4 1 mbergeron
Motor Sensors - Controller (1/4) 3 4 mbergeron
Motor Sensors - Controller (2/4) 3 2 mbergeron
Motor Sensors - Controller (3/4) 6 1 mbergeron
Motor Sensors - Controller (4/4) 2 1 mbergeron
Passenger Manifesto (1/2) 5 3 mbergeron
Passenger Manifesto (2/2) 4 1 mbergeron

Pwnage Linux (21)

Challenges descriptions Points Validation Author
Level1 Pwnage Linux Level Up 1 795 P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up 2 488 P-Y Feat Martin Dube
Remote Auth 2 131 NSEC 2015
Level3 Pwnage Linux Level Up 3 353 P-Y Feat Martin Dube
The Vault 3 80 Mr.Un1k0d3r
Level1 Pwnage Linux x86_64 3 223 Mr.Un1k0d3r
Can you get the service password 4 143 Mr.Un1k0d3r remade by sagefault
Sometime there is no buffer overflow 4 91 Mr.Un1k0d3r remade by GuilT
Level2 Pwnage Linux x86_64 4 79 Mr.Un1k0d3r
Friendly race 5 28 Garigouster
Level4 Pwnage Linux Level Up 5 153 Mr.Un1k0d3r
RPCFTW! 6 43 NSEC 2015
Jack the heaper 6 25 uaf.io
Level4 Pwnage Linux x86_64 7 45 Mr.Un1k0d3r
Level3 Pwnage Linux x86_64 7 76 Mr.Un1k0d3r
Just another useless service 8 44 NSEC 2015
Take over the Virtual World 8 37 NSEC 2015
Base64 As A Service 8 39 Guilt
All You Need Is a Client 8 15 Mr.Un1k0d3r (Trustwave CTF 2020)
Base64 As A Service Reloaded 9 32 Guilt
Delivery As A Service 10 20 NSEC 2016

Reverse Engineering (56)

Challenges descriptions Points Validation Author
Time to learn x86 ASM & gdb 2 2535 Mr.Un1k0d3r
See No Evil - Part 1 2 248 alxbl
Can you see through the star 2 1456 Mr.Un1k0d3r
Gift as a Service Part 2 2 62 H0H0H0 Day (R0 team)
See No Evil - Part 2 3 183 alxbl
See No Evil - Part 3 3 170 alxbl
Intro To Sparc 3 240 Ian-Kyle Wagner
Kernel introduction 3 306 Mr.Un1k0d3r
Heap allocator 3 316 NSEC 2015
Crack Me 1 3 859 Mr.Un1k0d3r
Introduction to MIPS 3 373 Mr.Un1k0d3r
I never forget the Nintendo 64 3 764 Mr.Un1k0d3r
Windows x86 reversing is cool 3 834 Mr.Un1k0d3r
Old School 4 104 Towel
Power to the people 4 94 NSEC 2015
Let's take a detour 4 114 Floesen
Altera? 4 87 NSEC 2016
ASM Lovers 4 108 NSEC 2016
Wrong byte! 4 308 Mr.Un1k0d3r
See No Evil - Part 4 4 128 alxbl
See No Evil - Part 5 4 119 alxbl
I love tea! 4 45 nic-lovin
Space Invaders 4 32 Trustwave CTF 2020
Introduction to ARM 4 398 Mr.Un1k0d3r
Windows API for the win 4 374 Mr.Un1k0d3r
WASM Part 1 5 98 NSEC 2018 (Isra17)
The MI7 password prompt 5 90 NSEC 2018 (Mr.Un1k0d3r)
Phenix Golgoth 5 67 Hackfest 2016
Can I speak with the kernel? 5 103 Zerosum0x0
Reindeer Game 5 20 H0H0H0 Day 2020 (Towel)
Back to our roots 5 136 Mr.Un1k0d3r
Virtual World 5 89 NSEC 2015
Smart enough? 5 139 NSEC 2015
Pwndr3 Authenticator 5 77 Pwndr3
RingZer0 Authenticator 5 272 Ekse
Need a client 6 86 Mr.Un1k0d3r
I Think I forgot to take out the garbage! 6 31 Mr.Un1k0d3r
Flag stealer 6 92 Ekse
Update Manager 6 71 Ekse
Buggy Bunny 7 16 Garigouster
Cappin' 7 8 Mr.Un1k0d3r (Trustwave CTF 2020)
The supreme bash 7 31 NSEC 2017 (Mr.Un1k0d3r)
Armed and ready 7 33 NSEC 2015
SOS Lib 7 40 Mr.Un1k0d3r
You're not welcome 8 65 Towel
WASM Part 2 8 16 NSEC 2018 (Isra17)
License to kill 8 5 Mr.Un1k0d3r
Rebate As A Service 8 51 NSEC 2016
The Matrix 9 17 Towel
Keygen time again 10 39 GoSec CTF 2014
Trolling the troll 10 36 Mr.Un1k0d3r
The unknown challenge 11 18 Mr.Un1k0d3r
WASM Part 3 12 9 NSEC 2018 (Isra17)
You're not welcome again! 12 23 Towel
The oracle 13 21 Towel
Mars Reloaded 18 13 NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions Points Validation Author
Basics of Linux x64 shellcoding 2 601 Mr.Un1k0d3r
Linux x64 shellcoding level 2 4 303 Mr.Un1k0d3r
Linux x64 shellcoding level 3 6 239 Mr.Un1k0d3r
Linux x64 shellcoding level 4 8 194 Mr.Un1k0d3r
Linux x64 shellcoding level 5 10 144 Mr.Un1k0d3r
Linux x64 shellcoding level 6 12 124 Mr.Un1k0d3r
Linux x64 shellcoding level 7 14 70 Mr.Un1k0d3r

Software Defined Radio (5)

Challenges descriptions Points Validation Author
SigID Level 1 1 1181 Guenael
You Turn Me On And Off 3 39 Trustwave CTF 2020
Let's Get Scwhifty! 5 31 Trustwave CTF 2020
SigID Level 2 6 13 Guenael
Don't flip out, Thomas! 7 29 Trustwave CTF 2020

SQL Injection (32)

Challenges descriptions Points Validation Author
Most basic SQLi pattern. 1 10957 Mr.Un1k0d3r
ACL rulezzz the world. 2 5409 Mart
Login portal 1 2 4287 Mr.Un1k0d3r
Random Login Form 2 2631 Mr.Un1k0d3r
Po po po po postgresql 2 2663 Mr.Un1k0d3r
Login portal 2 3 1081 Mr.Un1k0d3r
0 Day Store 3 172 NSEC 2015
Don't mess with Noemie; she hates admin! 3 1218 Mr.Un1k0d3r
What's the definition of NULL 3 1005 Mr.Un1k0d3r
Quote of the day 4 805 Mr.Un1k0d3r
No more hacking for me! 4 483 Mr.Un1k0d3r
Thinking outside the box is the key 4 683 Mr.Un1k0d3r
Don't Stumble in the Process 4 75 mbergeron
Brain Teaser 1 4 46 Sideni
Quote of the day reloaded 5 353 Mr.Un1k0d3r
When it's lite it's not necessarily easy 6 317 Mr.Un1k0d3r
Login portal 3 6 381 Mr.Un1k0d3r
Hot Single Mom 6 248 GoSec CTF 2014
Brain Teaser 2 7 25 Sideni
Internet As A Service 7 214 Mr.Un1k0d3r
Size DOES matter 7 157 Mr.Un1k0d3r
/etc/passwd 7 179 Mr.Un1k0d3r
Groups of hacker 7 180 Mr.Un1k0d3r
Login portal 4 7 259 Mr.Un1k0d3r
The useless search tool 8 133 Mr.Un1k0d3r
Login portal 5 8 87 Mr.Un1k0d3r
stackoverflow.com lied to me... again 9 94 Corb3nik
Doctor Who ? 9 15 Sideni
Login portal 6 10 72 Mr.Un1k0d3r
SQHell 11 17 Sideni feat. mbergeron
Don't Stumble in the Process Reloaded 12 12 mbergeron
!Mysql + Brain fart 13 36 Mr.Un1k0d3r

Steganography (25)

Challenges descriptions Points Validation Author
Victor you're hidding me something 1 3225 Cedrick Chaput
You're lost? Use the map 1 2270 Mr.Un1k0d3r
Look inside the house 2 1547 Mr.Un1k0d3r
A ghost sound 2 1122 Cedrick Chaput
Victor reloaded 2 1456 Cedrick Chaput
The Sloth 2 212 Misker
Brainsick 2 1081 Mr.Un1k0d3r
Missing Pieces 2 944 Cedrick Chaput
Hidden In Plain Sight 2 792 NSEC 2015
Pixel Everywhere 2 310 Mr.Un1k0d3r
The vestige of dial-up Internet 2 330 Uid0
I'm Goronyo Babad Nigerian prince 2 672 Mr.Un1k0d3r
5 beautiful colors 3 75 PublicName
Crazy Cat Lady 3 136 Madness
Love Letter 3 300 Towel
Can you see through the matrix! 3 171 Mr.Un1k0d3r
Your old friend Orloge Simard 3 682 Cedrick Chaput
Can you see through the matrix reloaded! 4 33 Towel
Stay Classy! 4 20 Sideni
Not just 64 4 19 Madness
Even the Odds 4 22 alxbl
Walk the line! 5 186 Cedrick Chaput
Stop the violence 5 26 jusb3
Stop the violence 2 5 11 jusb3
Hidden out of sight 5 22 cyberguru

SysAdmin Linux (8)

Challenges descriptions Points Validation Author
SysAdmin Part 1 1 3070 Cedrick Chaput
SysAdmin Part 2 1 2251 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3 1 1479 Mr.Un1k0d3r
SysAdmin Part 4 2 1331 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5 2 909 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6 3 847 Cedrick Chaput
SysAdmin Part 7 4 697 Cedrick Chaput
SysAdmin Part 8 4 734 Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions Points Validation Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1 7 88 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1 3 59 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2 7 56 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3 10 55 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 3 5 45 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 4 15 42 NSEC 2018 (isra17)

Web Warning (52)

Challenges descriptions Points Validation Author
Words mean something? 1 3770 Mr.Un1k0d3r
Big Brother is watching 1 5021 Mr.Un1k0d3r
Hacking skill are optional 1 479 Breached Company
Looking for password file 1 5178 Mr.Un1k0d3r
Area 51 1 3262 Mr.Un1k0d3r
Headache 1 4161 Mr.Un1k0d3r
Security thru obscurity! 2 1309 Mr.Un1k0d3r
PHP Fairy 2 1321 nic-Lovin
XSS Challenge 2 2 579 Mr.Un1k0d3r
XSS Challenge 1 2 577 Mr.Un1k0d3r
Admin Portal 2 1330 Mr.Un1k0d3r
Password reset 2 1088 Mr.Un1k0d3r
Malicious upload 2 715 Mr.Un1k0d3r
Captcha I 2 620 SynneR
Unreadable captcha 2 434 SynneR
Password reset reloaded 3 404 Mr.Un1k0d3r
PHP feature or 0day? 3 499 Mr.Un1k0d3r
Serial killer! 3 519 Mr.Un1k0d3r
JWT pitfall 1 3 83 Mr.Un1k0d3r
REST in peace 3 235 GoSec CTF 2014
Captcha IV 3 51 FadedForEver
NeuroSoft: Observation Unit Center 3 84 NSEC 2019 (ldionmarcil)
Beyond Reality Part 1 3 66 NSEC 2019 (ldionmarcil)
XSS Challenge 3 3 228 Mr.Un1k0d3r
XSS Challenge 4 3 232 Mr.Un1k0d3r
Facebook will never forget this one 3 251 Mr.Un1k0d3r
UploadStar 3 54 nopernik
Gift as a Service Part 1 3 80 H0H0H0 Day (R0 team)
Looking for the flag? 3 830 Mr.Un1k0d3r
Captcha III 4 73 mbergeron
Propaganda mail 4 282 NSEC 2015
Captcha II 4 167 SynneR
Read the unreadable 5 135 Mr.Un1k0d3r
Freedom Firewall 5 139 NSEC 2015
Timesheet As a Service 5 45 Mr.Un1k0d3r
Password Reset As a Service 5 68 Mr.Un1k0d3r
UploadStar Reloaded 5 34 nopernik
Super Lottery 5 99 davidlebr1
Beyond Reality Part 2 5 43 NSEC 2019 (ldionmarcil)
The archive 5 30 NSEC 2019 (HoLyVieR)
Lost API 5 47 NSEC 2019 (HoLyVieR)
PHP feature or 0day reloaded? 6 86 Mr.Un1k0d3r
I hate this one 6 245 Mr.Un1k0d3r
XSS Challenge 5 6 147 Mr.Un1k0d3r
Serial killer part 2 6 57 HoLyVieR
Orao's factory 6 136 NSEC 2015
Ping It! 7 39 mnadeau
Super Lottery Reloaded 7 41 davidlebr1 Feat mbergeron
XPATH of hell! 7 154 Francois L. Feat Mr.Un1k0d3r
Secure Mail 8 88 GoSec CTF 2014
Looking for god in your life? 8 69 NSEC 2015
Lotto 8/33 11 15 fishinspace

Flag statistics (226099 submitted so far)

Number of points Number of validation Number of points Number of validation
18 points 13 15 points 42
14 points 85 13 points 57
12 points 193 11 points 63
10 points 398 9 points 235
8 points 1196 7 points 3067
6 points 6103 5 points 6269
4 points 13452 3 points 26999
2 points 74710 1 points 93217
close Intercepting SSL Traffic on RingZer0ctf.com

If you are using Burpsuite as your proxy, you may experiment some issue regarding interception. If you got the following error unrecognized_name here is the solution.

Go to the main tab on your Burp then click on options you should now see the SSL tab. In the SSL Negociation section, check "Disable Java SNI extension (requires restart)"

Restart your Burp instance and you are good to go.

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