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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 Down
Hot Single Mom sandbox is Up Bash Jail 1 sandbox is Up

Challenges


Coding Challenges (17)

Challenges descriptions Points Validation Author
Hash me please 2 2230 Mr.Un1k0d3r
Ask your grandpa! 2 847 Mr.Un1k0d3r's Dad
Hash me reloaded 3 1270 Mr.Un1k0d3r
I hate mathematics 3 1369 Mr.Un1k0d3r
Ask your grandpa again! 4 276 Mr.Un1k0d3r's Dad
Hash breaker 4 1037 Mr.Un1k0d3r
I saw a little elf 4 374 Mr.Un1k0d3r
Hash breaker reloaded 5 624 Mr.Un1k0d3r
Execute me if you can 5 327 Mr.Un1k0d3r
Read me if you can 6 328 Mr.Un1k0d3r
Hash breaker reloaded again 6 210 Mr.Un1k0d3r
Ascii Art 6 493 Mr.Un1k0d3r
Execute me if you can again 6 164 Mr.Un1k0d3r
Xor me if you can 6 319 Mr.Un1k0d3r
Number game 7 204 Mr.Un1k0d3r
Classic Sudoku 7 180 Mr.Un1k0d3r
Find the right word 7 247 Mr.Un1k0d3r

Cryptography (31)

Challenges descriptions Points Validation Author
Some martian message 1 4631 Mr.Un1k0d3r
You're Drunk! 1 753 Mr.Un1k0d3r
File recovery 1 2226 Mr.Un1k0d3r
Fashion Victim 2 342 GoSec CTF 2014
Public key recovery 2 1100 Mr.Un1k0d3r
Martian message part 2 2 2051 Mr.Un1k0d3r
Let's Play Scrabble! 3 13 Madness
Can you understand this sentence? 3 499 Mr.Un1k0d3r
Hangovers and more: Bacon 3 385 SynneR
Martian message part 3 3 768 Mr.Un1k0d3r
I Lost my password 3 869 Mr.Un1k0d3r
Crypto over the network 4 105 Mr.Un1k0d3r
Crypto Object 4 137 GoSec CTF 2014
Crypto Leak 4 27 NSEC 2018 (Towel)
Encrypted Zip 4 414 Mr.Un1k0d3r
Let's Play Scrabble! Part 2 5 5 Madness
Jabber 5 4 Madness
Free Flag Encrypter 5 14 Towel
Is it a secure string? 5 200 Cedrick Chaput
Pattern is the key 6 38 Mr.Un1k0d3r
TotalSecure Message Encrypter 6 72 Towel
Welcome to the asylum 6 48 GoSec CTF 2014
Jabber Part 2 7 4 Madness
Homemade Craptography 8 5 NSEC 2018 (Holyvier)
Crypto is not good as you think 8 121 Mr.Un1k0d3r
Mars Log 8 6 NSEC 2018 (Towel)
Spies 9 28 CS Games 2016 (HoLyVieR)
Rusty RSA message signing service 9 10 b0n0n & An0n
TotalSecure Message Encrypter V2 10 16 Towel
Polly Wants a Cracker 10 0 Madness
Unicorn As A Service 11 7 Towel

Exotic Data Storage (4)

Challenges descriptions Points Validation Author
Just another login form 2 1275 Mr.Un1k0d3r
DON'T login as admin 2 8 mbergeron
I forgot my password 3 8 mbergeron
Inspiration 6 11 NSEC 2019 (becojo)

Forensics (28)

Challenges descriptions Points Validation Author
Who I am part 2 1 304 Mr.Un1k0d3r
I made a dd of Agent Smith usb key 1 2419 Cedrick Chaput
I love cat 2 223 Mr.Un1k0d3r
Dr. Pouce 2 1779 Cedrick Chaput
Attention Dinosaure Survive 2 960 PRL
The good, the bad and the ugly 2 58 Mr.Un1k0d3r
1 / 3 Do not waste the environment 2 766 PRL
Hide my ass in my home! 2 1167 Cedrick Chaput
Hey Chuck where is the flag? 2 1141 Mr.Un1k0d3r
Meat Loaf 2 189 Ekse
Who I am? 2 685 Mr.Un1k0d3r
The words flew but writing remains 3 118 Martin Dube
2 / 3 Did you see my desktop? 3 648 PRL
Are you Twisted Insane? 3 23 Cedrick Feat Mr.Un1k0d3r
Someone steal my flag! 3 278 Mr.Un1k0d3r
802.1X Part 1 4 43 NSEC 2015
3 / 3 Suspicious account password? 4 520 PRL
Poor internet connection 4 332 Cedrick Chaput
Agent Smith reloaded 4 196 Cedrick Chaput
R.I.P MsPaint 4 72 Misker
We got breached 5 157 Mr.Un1k0d3r
Someone steal my flag again 5 82 GoSec CTF 2014
Ping pong 5 70 SynneR
Spy my girl 5 152 Cedrick Chaput
We got breached again 6 119 Mr.Un1k0d3r
Russian Crypto Roulette 6 54 SynneR
Really Depressed Protocol 7 62 SynneR
802.1X Part 2 8 33 NSEC 2015

Jail Escaping (21)

Challenges descriptions Points Validation Author
Bash Jail 1 1 1562 Mr.Un1k0d3r
Bash Jail 2 2 1018 Mr.Un1k0d3r
Bash Jail 3 3 584 Mr.Un1k0d3r
Bash Jail 4 4 325 Mr.Un1k0d3r
Bash Jail 5 6 136 Mr.Un1k0d3r
Bash Jail 6 8 17 Garigouster
Bash Jail 7 12 13 Garigouster
C Jail 1 1 261 Mr.Un1k0d3r
C Jail 2 2 171 Mr.Un1k0d3r
C Jail 3 3 140 Mr.Un1k0d3r
C Jail 4 5 13 Garigouster
C Jail 5 7 9 Garigouster
C Jail 6 14 4 Garigouster
PHP Jail 1 1 424 Mr.Un1k0d3r
PHP Jail 2 2 276 Mr.Un1k0d3r
PHP Jail 3 3 186 Mr.Un1k0d3r
PHP Jail 4 4 139 Mr.Un1k0d3r
PHP Jail 5 6 112 Mr.Un1k0d3r
PyJail 1 3 169 Martin Dube
PyJail 2 5 98 Martin Dube
PyJail 3 6 32 Martin Dube

JavaScript (10)

Challenges descriptions Points Validation Author
Client side validation is bad! 1 5440 Mr.Un1k0d3r
Hashing is more secure 1 4744 Mr.Un1k0d3r
Then obfuscation is more secure 1 3567 Mr.Un1k0d3r
Most Secure Crypto Algo 2 1177 Mr.Un1k0d3r
Valid key required 2 696 Francois Lajeunesse
Why not? 2 2974 Mr.Un1k0d3r
Why not be more secure? 5 431 Mr.Un1k0d3r
WTF Lol! 6 200 HoLyVieR
Interstellar PhoneBook 6 25 NSEC 2018 (Holyvier)
Beauty and the beast 7 31 Mr.Un1k0d3r

Malware Analysis (17)

Challenges descriptions Points Validation Author
APT 1337 4 26 NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1 1 480 Mr.Un1k0d3r
Capture 1 Part 2 1 157 Mr.Un1k0d3r
Capture 1 Part 3 1 175 Mr.Un1k0d3r
Capture 1 Part 4 2 19 Mr.Un1k0d3r
Capture 1 Part 5 3 37 Mr.Un1k0d3r
Capture 1 Part 6 3 117 Mr.Un1k0d3r
Capture 1 Part 7 3 21 Mr.Un1k0d3r
Capture 2 Part 1 1 45 Mr.Un1k0d3r
Capture 2 Part 2 1 80 Mr.Un1k0d3r
Capture 2 Part 3 1 82 Mr.Un1k0d3r
Capture 2 Part 4 3 80 Mr.Un1k0d3r
Capture 2 Part 5 4 29 Mr.Un1k0d3r
Capture 2 Part 6 7 12 Mr.Un1k0d3r
Just Another MBR Ransomware 8 13 Towel
RAO democracy 4 41 NSEC 2017 (Mr.Un1k0d3r)
WebShell of Hell 5 7 An0n

Pwnage Linux (19)

Challenges descriptions Points Validation Author
Level1 Pwnage Linux Level Up 1 487 P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up 2 312 P-Y Feat Martin Dube
Remote Auth 2 96 NSEC 2015
Level3 Pwnage Linux Level Up 3 233 P-Y Feat Martin Dube
Level1 Pwnage Linux x86_64 3 169 Mr.Un1k0d3r
Level2 Pwnage Linux x86_64 4 58 Mr.Un1k0d3r
Sometime there is no buffer overflow 4 70 Mr.Un1k0d3r
Can you get the service password 4 110 Mr.Un1k0d3r
Level4 Pwnage Linux Level Up 5 111 Mr.Un1k0d3r
Friendly race 5 21 Garigouster
RPCFTW! 6 24 NSEC 2015
Jack the heaper 6 18 uaf.io
Level3 Pwnage Linux x86_64 7 52 Mr.Un1k0d3r
Level4 Pwnage Linux x86_64 7 31 Mr.Un1k0d3r
Just another useless service 8 34 NSEC 2015
Take over the Virtual World 8 26 NSEC 2015
Base64 As A Service 8 26 Guilt
Base64 As A Service Reloaded 9 21 Guilt
Delivery As A Service 10 14 NSEC 2016

Reverse Engineering (46)

Challenges descriptions Points Validation Author
Can you see through the star 2 1005 Mr.Un1k0d3r
Time to learn x86 ASM & gdb 2 1678 Mr.Un1k0d3r
Kernel introduction 3 192 Mr.Un1k0d3r
Intro To Sparc 3 113 Ian-Kyle Wagner
Crack Me 1 3 647 Mr.Un1k0d3r
Introduction to MIPS 3 259 Mr.Un1k0d3r
I never forget the Nintendo 64 3 524 Mr.Un1k0d3r
Heap allocator 3 197 NSEC 2015
Windows x86 reversing is cool 3 587 Mr.Un1k0d3r
Let's take a detour 4 68 Floesen
ASM Lovers 4 72 NSEC 2016
Altera? 4 45 NSEC 2016
Wrong byte! 4 230 Mr.Un1k0d3r
Power to the people 4 39 NSEC 2015
Old School 4 46 Towel
Introduction to ARM 4 284 Mr.Un1k0d3r
Windows API for the win 4 271 Mr.Un1k0d3r
Can I speak with the kernel? 5 51 Zerosum0x0
Phenix Golgoth 5 38 Hackfest 2016
The MI7 password prompt 5 40 NSEC 2018 (Mr.Un1k0d3r)
WASM Part 1 5 42 NSEC 2018 (Isra17)
Smart enough? 5 93 NSEC 2015
Virtual World 5 52 NSEC 2015
Back to our roots 5 91 Mr.Un1k0d3r
Pwndr3 Authenticator 5 46 Pwndr3
RingZer0 Authenticator 5 194 Ekse
Flag stealer 6 61 Ekse
Need a client 6 71 Mr.Un1k0d3r
I Think I forgot to take out the garbage! 6 18 Mr.Un1k0d3r
Update Manager 6 50 Ekse
Buggy Bunny 7 10 Garigouster
Armed and ready 7 11 NSEC 2015
SOS Lib 7 21 Mr.Un1k0d3r
The supreme bash 7 17 NSEC 2017 (Mr.Un1k0d3r)
WASM Part 2 8 8 NSEC 2018 (Isra17)
You're not welcome 8 45 Towel
License to kill 8 0 Mr.Un1k0d3r
Rebate As A Service 8 33 NSEC 2016
The Matrix 9 8 Towel
Trolling the troll 10 30 Mr.Un1k0d3r
Keygen time again 10 28 GoSec CTF 2014
The unknown challenge 11 15 Mr.Un1k0d3r
You're not welcome again! 12 19 Towel
WASM Part 3 12 6 NSEC 2018 (Isra17)
The oracle 13 17 Towel
Mars Reloaded 18 8 NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions Points Validation Author
Basics of Linux x64 shellcoding 2 436 Mr.Un1k0d3r
Linux x64 shellcoding level 2 4 223 Mr.Un1k0d3r
Linux x64 shellcoding level 3 6 172 Mr.Un1k0d3r
Linux x64 shellcoding level 4 8 136 Mr.Un1k0d3r
Linux x64 shellcoding level 5 10 95 Mr.Un1k0d3r
Linux x64 shellcoding level 6 12 81 Mr.Un1k0d3r
Linux x64 shellcoding level 7 14 43 Mr.Un1k0d3r

SQL Injection (32)

Challenges descriptions Points Validation Author
Most basic SQLi pattern. 1 6693 Mr.Un1k0d3r
Random Login Form 2 1086 Mr.Un1k0d3r
Po po po po postgresql 2 1238 Mr.Un1k0d3r
Login portal 1 2 2522 Mr.Un1k0d3r
ACL rulezzz the world. 2 3599 Mart
Login portal 2 3 382 Mr.Un1k0d3r
Don't mess with Noemie; she hates admin! 3 570 Mr.Un1k0d3r
0 Day Store 3 104 NSEC 2015
What's the definition of NULL 3 519 Mr.Un1k0d3r
Don't Stumble in the Process 4 37 mbergeron
Brain Teaser 1 4 8 Sideni
Quote of the day 4 487 Mr.Un1k0d3r
No more hacking for me! 4 231 Mr.Un1k0d3r
Thinking outside the box is the key 4 423 Mr.Un1k0d3r
Quote of the day reloaded 5 190 Mr.Un1k0d3r
When it's lite it's not necessarily easy 6 175 Mr.Un1k0d3r
Login portal 3 6 196 Mr.Un1k0d3r
Hot Single Mom 6 132 GoSec CTF 2014
Internet As A Service 7 68 Mr.Un1k0d3r
Size DOES matter 7 120 Mr.Un1k0d3r
Brain Teaser 2 7 8 Sideni
/etc/passwd 7 125 Mr.Un1k0d3r
Groups of hacker 7 144 Mr.Un1k0d3r
Login portal 4 7 120 Mr.Un1k0d3r
Login portal 5 8 66 Mr.Un1k0d3r
The useless search tool 8 105 Mr.Un1k0d3r
stackoverflow.com lied to me... again 9 59 Corb3nik
Doctor Who ? 9 6 Sideni
Login portal 6 10 52 Mr.Un1k0d3r
SQHell 11 12 Sideni feat. mbergeron
Don't Stumble in the Process Reloaded 12 7 mbergeron
!Mysql + Brain fart 13 29 Mr.Un1k0d3r

Steganography (24)

Challenges descriptions Points Validation Author
You're lost? Use the map 1 1184 Mr.Un1k0d3r
Victor you're hidding me something 1 1813 Cedrick Chaput
SigID Level 1 1 735 Guenael
Pixel Everywhere 2 91 Mr.Un1k0d3r
I'm Goronyo Babad Nigerian prince 2 330 Mr.Un1k0d3r
The vestige of dial-up Internet 2 60 Uid0
Missing Pieces 2 573 Cedrick Chaput
Brainsick 2 640 Mr.Un1k0d3r
Hidden In Plain Sight 2 471 NSEC 2015
The Sloth 2 81 Misker
Victor reloaded 2 772 Cedrick Chaput
A ghost sound 2 636 Cedrick Chaput
Look inside the house 2 704 Mr.Un1k0d3r
Crazy Cat Lady 3 37 Madness
Love Letter 3 142 Towel
5 beautiful colors 3 27 PublicName
Can you see through the matrix! 3 119 Mr.Un1k0d3r
Your old friend Orloge Simard 3 460 Cedrick Chaput
Can you see through the matrix reloaded! 4 23 Towel
Stay Classy! 4 14 Sideni
Not just 64 4 9 Madness
Walk the line! 5 118 Cedrick Chaput
Stop the violence 5 12 jusb3
SigID Level 2 6 6 Guenael

SysAdmin Linux (8)

Challenges descriptions Points Validation Author
SysAdmin Part 1 1 1747 Cedrick Chaput
SysAdmin Part 2 1 1230 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3 1 716 Mr.Un1k0d3r
SysAdmin Part 4 2 756 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5 2 422 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6 3 413 Cedrick Chaput
SysAdmin Part 7 4 324 Cedrick Chaput
SysAdmin Part 8 4 411 Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions Points Validation Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1 7 31 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1 3 20 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2 7 19 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3 10 18 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 3 5 16 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 4 15 14 NSEC 2018 (isra17)

Web Warning (40)

Challenges descriptions Points Validation Author
Hacking skill are optional 1 66 Breached Company
Words mean something? 1 2088 Mr.Un1k0d3r
Headache 1 2703 Mr.Un1k0d3r
Area 51 1 1961 Mr.Un1k0d3r
Looking for password file 1 3018 Mr.Un1k0d3r
Big Brother is watching 1 3039 Mr.Un1k0d3r
Unreadable captcha 2 275 SynneR
Admin Portal 2 915 Mr.Un1k0d3r
XSS Challenge 2 2 250 Mr.Un1k0d3r
Password reset 2 754 Mr.Un1k0d3r
PHP Fairy 2 535 nic-Lovin
Captcha I 2 437 SynneR
Malicious upload 2 410 Mr.Un1k0d3r
Security thru obscurity! 2 778 Mr.Un1k0d3r
XSS Challenge 1 2 223 Mr.Un1k0d3r
JWT pitfall 1 3 9 Mr.Un1k0d3r
REST in peace 3 183 GoSec CTF 2014
PHP feature or 0day? 3 288 Mr.Un1k0d3r
Serial killer! 3 376 Mr.Un1k0d3r
Password reset reloaded 3 292 Mr.Un1k0d3r
Looking for the flag? 3 564 Mr.Un1k0d3r
XSS Challenge 3 3 129 Mr.Un1k0d3r
XSS Challenge 4 3 146 Mr.Un1k0d3r
Facebook will never forget this one 3 162 Mr.Un1k0d3r
Captcha III 4 24 mbergeron
Captcha II 4 110 SynneR
Propaganda mail 4 165 NSEC 2015
Read the unreadable 5 63 Mr.Un1k0d3r
Freedom Firewall 5 91 NSEC 2015
Super Lottery 5 32 Sparkix
Password Reset As a Service 5 28 Mr.Un1k0d3r
Timesheet As a Service 5 22 Mr.Un1k0d3r
XSS Challenge 5 6 94 Mr.Un1k0d3r
I hate this one 6 181 Mr.Un1k0d3r
PHP feature or 0day reloaded? 6 63 Mr.Un1k0d3r
Serial killer part 2 6 34 HoLyVieR
Orao's factory 6 93 NSEC 2015
XPATH of hell! 7 104 Francois L. Feat Mr.Un1k0d3r
Secure Mail 8 63 GoSec CTF 2014
Looking for god in your life? 8 57 NSEC 2015

Flag statistics (131755 submitted so far)

Number of points Number of validation Number of points Number of validation
18 points 8 15 points 14
14 points 47 13 points 46
12 points 126 11 points 34
10 points 253 9 points 132
8 points 794 7 points 1630
6 points 3749 5 points 3535
4 points 7875 3 points 15445
2 points 43237 1 points 54830

Shoutbox Have more questions? You can join the Slack Channel https://ringzer0-slack-invite.herokuapp.com/

2019-06-12 13:38:24 - lenno
'
2019-06-01 12:30:32 - sparkix
Updates : We have added new challenges and a new category. We have also added Special Mention in the scoreboard. Enjoy !
2019-05-29 17:29:44 - Sideni
@nikitaz It is indeed down
2019-05-28 16:25:09 - nikitaz
this challenge doesnt seem to work: https://ringzer0ctf.com/challenges/251
2019-05-27 06:11:07 - GDASL
how do i connect to the website using python??
2019-05-24 14:44:14 - twado
FLAG-IsTh1sR34L
2019-05-23 05:42:30 - admin
hhhh
2019-05-08 07:45:44 - wiz3kid
66 is down
2019-05-07 16:39:42 - sukulent
silvesterjehomo
2019-05-06 05:31:27 - Silvestr
5555555555555555555
close Intercepting SSL Traffic on RingZer0team.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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