Switch to lite version

273 challenges are currently available


RingZer0 Team provide you couple of tools that can help you. See available tools.
Means challenge completed.
Point to write-up that worth to be reading.
Earn RingZer0Gold for each of your write-up.

You have the opportunity to submit a write up for every challenge you successfully complete. Every time your write up is approved your earn RingZer0Gold. It's possible for you to exchange this gold for hints. The main goal of this initiative is to stimulate people to submit write up and share how they solved a challenge with other people. When you finish a challenge, you have the ability to view all published write up for the challenge. This way you can learn many ways to solve a unique challenge.

Sandboxes Status

Challenges
SysAdmin Part 1 sandbox is Down Secure Mail sandbox is Down
Looking for god in your life? sandbox is Down XSS Challenge 1 sandbox is Down
Captcha I sandbox is Down Propaganda mail sandbox is Down
Basics of Linux x64 shellcoding sandbox is Down Level1 Pwnage Linux Level Up sandbox is Down
Level1 Pwnage Linux x86_64 sandbox is Down Virtual World sandbox is Down
Hot Single Mom sandbox is Down Bash Jail 1 sandbox is Down

Challenges


Coding challenges (17)

Challenges descriptions Points Validation Author
Hash me please 2 1536 Mr.Un1k0d3r
Ask your grandpa! 2 600 Mr.Un1k0d3r's Dad
Hash me reloaded 3 930 Mr.Un1k0d3r
I hate mathematics 3 1012 Mr.Un1k0d3r
Ask your grandpa again! 4 188 Mr.Un1k0d3r's Dad
Hash breaker 4 753 Mr.Un1k0d3r
I saw a little elf 4 282 Mr.Un1k0d3r
Hash breaker reloaded 5 463 Mr.Un1k0d3r
Execute me if you can 5 270 Mr.Un1k0d3r
Read me if you can 6 246 Mr.Un1k0d3r
Hash breaker reloaded again 6 164 Mr.Un1k0d3r
Ascii Art 6 384 Mr.Un1k0d3r
Execute me if you can again 6 135 Mr.Un1k0d3r
Xor me if you can 6 257 Mr.Un1k0d3r
Number game 7 204 Mr.Un1k0d3r
Classic Sudoku 7 180 Mr.Un1k0d3r
Find the right word 7 190 Mr.Un1k0d3r

Cryptography (22)

Challenges descriptions Points Validation Author
Some martian message 1 3188 Mr.Un1k0d3r
File recovery 1 1632 Mr.Un1k0d3r
Martian message part 2 2 1429 Mr.Un1k0d3r
Fashion Victim 2 228 GoSec CTF 2014
Public key recovery 2 860 Mr.Un1k0d3r
Hangovers and more: Bacon 3 254 SynneR
Can you understand this sentence? 3 363 Mr.Un1k0d3r
I Lost my password 3 658 Mr.Un1k0d3r
Martian message part 3 3 564 Mr.Un1k0d3r
Encrypted Zip 4 307 Mr.Un1k0d3r
Crypto over the network 4 104 Mr.Un1k0d3r
Crypto Object 4 97 GoSec CTF 2014
Is it a secure string? 5 155 Cedrick Chaput
Free Flag Encrypter 5 11 Towel
Welcome to the asylum 6 38 GoSec CTF 2014
Pattern is the key 6 31 Mr.Un1k0d3r
TotalSecure Message Encrypter 6 50 Towel
Crypto is not good as you think 8 91 Mr.Un1k0d3r
Spies 9 21 CS Games 2016 (HoLyVieR)
Rusty RSA message signing service 9 10 b0n0n & An0n
TotalSecure Message Encrypter V2 10 12 Towel
Unicorn As A Service 11 4 Towel

Forensics (28)

Challenges descriptions Points Validation Author
Who I am part 2 1 136 Mr.Un1k0d3r
I made a dd of Agent Smith usb key 1 1844 Cedrick Chaput
I love cat 2 198 Mr.Un1k0d3r
Dr. Pouce 2 1322 Cedrick Chaput
Attention Dinosaure Survive 2 713 PRL
The good, the bad and the ugly 2 42 Mr.Un1k0d3r
1 / 3 Do not waste the environment 2 561 PRL
Hide my ass in my home! 2 880 Cedrick Chaput
Hey Chuck where is the flag? 2 865 Mr.Un1k0d3r
Meat Loaf 2 142 Ekse
Who I am? 2 497 Mr.Un1k0d3r
The words flew but writing remains 3 83 Martin Dube
2 / 3 Did you see my desktop? 3 488 PRL
Are you Twisted Insane? 3 19 Cedrick Feat Mr.Un1k0d3r
Someone steal my flag! 3 213 Mr.Un1k0d3r
802.1X Part 1 4 25 NSEC 2015
3 / 3 Suspicious account password? 4 394 PRL
Poor internet connection 4 275 Cedrick Chaput
Agent Smith reloaded 4 142 Cedrick Chaput
R.I.P MsPaint 4 39 Misker
We got breached 5 125 Mr.Un1k0d3r
Someone steal my flag again 5 55 GoSec CTF 2014
Ping pong 5 50 SynneR
Spy my girl 5 123 Cedrick Chaput
We got breached again 6 98 Mr.Un1k0d3r
Russian Crypto Roulette 6 42 SynneR
Really Depressed Protocol 7 44 SynneR
802.1X Part 2 8 17 NSEC 2015

Jail Escaping (21)

Challenges descriptions Points Validation Author
Bash Jail 1 1 835 Mr.Un1k0d3r
Bash Jail 2 2 571 Mr.Un1k0d3r
Bash Jail 3 3 344 Mr.Un1k0d3r
Bash Jail 4 4 198 Mr.Un1k0d3r
Bash Jail 5 6 81 Mr.Un1k0d3r
Bash Jail 6 8 6 Garigouster
Bash Jail 7 12 5 Garigouster
C Jail 1 1 154 Mr.Un1k0d3r
C Jail 2 2 101 Mr.Un1k0d3r
C Jail 3 3 79 Mr.Un1k0d3r
C Jail 4 5 3 Garigouster
C Jail 5 7 0 Garigouster
C Jail 6 14 0 Garigouster
PHP Jail 1 1 277 Mr.Un1k0d3r
PHP Jail 2 2 179 Mr.Un1k0d3r
PHP Jail 3 3 115 Mr.Un1k0d3r
PHP Jail 4 4 88 Mr.Un1k0d3r
PHP Jail 5 6 71 Mr.Un1k0d3r
PyJail 1 3 134 Martin Dube
PyJail 2 5 78 Martin Dube
PyJail 3 6 22 Martin Dube

JavaScript (9)

Challenges descriptions Points Validation Author
Client side validation is bad! 1 3896 Mr.Un1k0d3r
Hashing is more secure 1 3419 Mr.Un1k0d3r
Then obfuscation is more secure 1 2536 Mr.Un1k0d3r
Why not? 2 2368 Mr.Un1k0d3r
Valid key required 2 481 Francois Lajeunesse
Most Secure Crypto Algo 2 681 Mr.Un1k0d3r
Why not be more secure? 5 302 Mr.Un1k0d3r
WTF Lol! 6 120 HoLyVieR
Beauty and the beast 7 17 Mr.Un1k0d3r

Malware Analysis (17)

Challenges descriptions Points Validation Author
APT 1337 4 11 NorthSEC 2017 - Mr.Un1k0d3r
Capture 1 Part 1 1 354 Mr.Un1k0d3r
Capture 1 Part 2 1 114 Mr.Un1k0d3r
Capture 1 Part 3 1 127 Mr.Un1k0d3r
Capture 1 Part 4 2 19 Mr.Un1k0d3r
Capture 1 Part 5 3 22 Mr.Un1k0d3r
Capture 1 Part 6 3 91 Mr.Un1k0d3r
Capture 1 Part 7 3 18 Mr.Un1k0d3r
Capture 2 Part 1 1 35 Mr.Un1k0d3r
Capture 2 Part 2 1 61 Mr.Un1k0d3r
Capture 2 Part 3 1 62 Mr.Un1k0d3r
Capture 2 Part 4 3 59 Mr.Un1k0d3r
Capture 2 Part 5 4 22 Mr.Un1k0d3r
Capture 2 Part 6 7 6 Mr.Un1k0d3r
Just Another MBR Ransomware 8 4 Towel
RAO democracy 4 19 NorthSEC 2017 - Mr.Un1k0d3r
WebShell of Hell 5 7 An0n

Pwnage Linux (19)

Challenges descriptions Points Validation Author
Level1 Pwnage Linux Level Up 1 450 P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up 2 295 P-Y Feat Martin Dube
Remote Auth 2 96 NSEC 2015
Level3 Pwnage Linux Level Up 3 220 P-Y Feat Martin Dube
Level1 Pwnage Linux x86_64 3 131 Mr.Un1k0d3r
Level2 Pwnage Linux x86_64 4 45 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 5 104 Mr.Un1k0d3r
Friendly race 5 21 Garigouster
RPCFTW! 6 23 NSEC 2015
Jack the heaper 6 18 uaf.io
Level3 Pwnage Linux x86_64 7 41 Mr.Un1k0d3r
Level4 Pwnage Linux x86_64 7 24 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 (40)

Challenges descriptions Points Validation Author
Time to learn x86 ASM & gdb 2 1298 Mr.Un1k0d3r
Can you see through the star 2 812 Mr.Un1k0d3r
Crack Me 1 3 531 Mr.Un1k0d3r
Heap allocator 3 136 NSEC 2015
Intro To Sparc 3 51 Ian-Kyle Wagner
Kernel introduction 3 139 Mr.Un1k0d3r
Introduction to MIPS 3 193 Mr.Un1k0d3r
Windows x86 reversing is cool 3 474 Mr.Un1k0d3r
I never forget the Nintendo 64 3 405 Mr.Un1k0d3r
Introduction to ARM 4 216 Mr.Un1k0d3r
Old School 4 26 Towel
Altera? 4 29 NSEC 2016
ASM Lovers 4 44 NSEC 2016
Power to the people 4 25 NSEC 2015
Windows API for the win 4 216 Mr.Un1k0d3r
Wrong byte! 4 180 Mr.Un1k0d3r
Let's take a detour 4 47 Floesen
Phenix Golgoth 5 25 Hackfest 2016
Can I speak with the kernel? 5 29 Zerosum0x0
Back to our roots 5 74 Mr.Un1k0d3r
Virtual World 5 52 NSEC 2015
Smart enough? 5 68 NSEC 2015
RingZer0 Authenticator 5 157 Ekse
Pwndr3 Authenticator 5 35 Pwndr3
Flag stealer 6 46 Ekse
Update Manager 6 44 Ekse
Need a client 6 71 Mr.Un1k0d3r
I Think I forgot to take out the garbage! 6 13 Mr.Un1k0d3r
Buggy Bunny 7 5 Garigouster
The supreme bash 7 9 NorthSEC 2017 - Mr.Un1k0d3r
SOS Lib 7 14 Mr.Un1k0d3r
Armed and ready 7 8 NSEC 2015
Rebate As A Service 8 23 NSEC 2016
You're not welcome 8 31 Towel
License to kill 8 0 Mr.Un1k0d3r
Keygen time again 10 21 GoSec CTF 2014
Trolling the troll 10 24 Mr.Un1k0d3r
The unknown challenge 11 12 Mr.Un1k0d3r
You're not welcome again! 12 11 Towel
The oracle 13 11 Towel

Shellcoding (7)

Challenges descriptions Points Validation Author
Basics of Linux x64 shellcoding 2 355 Mr.Un1k0d3r
Linux x64 shellcoding level 2 4 183 Mr.Un1k0d3r
Linux x64 shellcoding level 3 6 144 Mr.Un1k0d3r
Linux x64 shellcoding level 4 8 113 Mr.Un1k0d3r
Linux x64 shellcoding level 5 10 81 Mr.Un1k0d3r
Linux x64 shellcoding level 6 12 68 Mr.Un1k0d3r
Linux x64 shellcoding level 7 14 32 Mr.Un1k0d3r

SQL Injection (28)

Challenges descriptions Points Validation Author
Most basic SQLi pattern. 1 4694 Mr.Un1k0d3r
ACL rulezzz the world. 2 2450 Mart
Login portal 1 2 1605 Mr.Un1k0d3r
Random Login Form 2 591 Mr.Un1k0d3r
Just another login form 2 858 Mr.Un1k0d3r
Po po po po postgresql 2 817 Mr.Un1k0d3r
0 Day Store 3 52 NSEC 2015
Don't mess with Noemie; she hates admin! 3 329 Mr.Un1k0d3r
What's the definition of NULL 3 316 Mr.Un1k0d3r
Login portal 2 3 238 Mr.Un1k0d3r
Quote of the day 4 332 Mr.Un1k0d3r
Thinking outside the box is the key 4 306 Mr.Un1k0d3r
No more hacking for me! 4 163 Mr.Un1k0d3r
Quote of the day reloaded 5 140 Mr.Un1k0d3r
Hot Single Mom 6 90 GoSec CTF 2014
Login portal 3 6 153 Mr.Un1k0d3r
When it's lite it's not necessarily easy 6 138 Mr.Un1k0d3r
Internet As A Service 7 24 Mr.Un1k0d3r
Login portal 4 7 86 Mr.Un1k0d3r
Size DOES matter 7 94 Mr.Un1k0d3r
/etc/passwd 7 91 Mr.Un1k0d3r
Groups of hacker 7 119 Mr.Un1k0d3r
The useless search tool 8 88 Mr.Un1k0d3r
Login portal 5 8 55 Mr.Un1k0d3r
SQHell 8 4 Sideni
stackoverflow.com lied to me... again 9 23 Corb3nik
Login portal 6 10 42 Mr.Un1k0d3r
!Mysql + Brain fart 13 23 Mr.Un1k0d3r

Steganography (21)

Challenges descriptions Points Validation Author
SigID Level 1 1 475 Guenael
You're lost? Use the map 1 791 Mr.Un1k0d3r
Victor you're hidding me something 1 1298 Cedrick Chaput
The Sloth 2 42 Misker
Hidden In Plain Sight 2 335 NSEC 2015
I'm Goronyo Babad Nigerian prince 2 218 Mr.Un1k0d3r
Missing Pieces 2 417 Cedrick Chaput
Brainsick 2 469 Mr.Un1k0d3r
Look inside the house 2 517 Mr.Un1k0d3r
The vestige of dial-up Internet 2 34 Uid0
Victor reloaded 2 590 Cedrick Chaput
A ghost sound 2 473 Cedrick Chaput
Pixel Everywhere 2 61 Mr.Un1k0d3r
Love Letter 3 95 Towel
5 beautiful colors 3 11 PublicName
Can you see through the matrix! 3 92 Mr.Un1k0d3r
Your old friend Orloge Simard 3 346 Cedrick Chaput
Stay Classy! 3 4 Sideni
Can you see through the matrix reloaded! 4 13 Towel
Walk the line! 5 87 Cedrick Chaput
SigID Level 2 6 4 Guenael

SysAdmin Linux (8)

Challenges descriptions Points Validation Author
SysAdmin Part 1 1 1172 Cedrick Chaput
SysAdmin Part 2 1 806 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3 1 422 Mr.Un1k0d3r
SysAdmin Part 4 2 519 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5 2 235 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6 3 249 Cedrick Chaput
SysAdmin Part 7 4 183 Cedrick Chaput
SysAdmin Part 8 4 256 Cedrick Feat Mr.Un1k0d3r

Web Warning (36)

Challenges descriptions Points Validation Author
Big Brother is watching 1 1924 Mr.Un1k0d3r
Looking for password file 1 2007 Mr.Un1k0d3r
Area 51 1 1414 Mr.Un1k0d3r
Headache 1 1988 Mr.Un1k0d3r
Words mean something? 1 1531 Mr.Un1k0d3r
Admin Portal 2 628 Mr.Un1k0d3r
XSS Challenge 1 2 178 Mr.Un1k0d3r
Captcha I 2 353 SynneR
Unreadable captcha 2 170 SynneR
XSS Challenge 2 2 208 Mr.Un1k0d3r
Password reset 2 594 Mr.Un1k0d3r
PHP Fairy 2 283 nic-Lovin
Malicious upload 2 314 Mr.Un1k0d3r
Security thru obscurity! 2 591 Mr.Un1k0d3r
REST in peace 3 128 GoSec CTF 2014
PHP feature or 0day? 3 168 Mr.Un1k0d3r
Password reset reloaded 3 243 Mr.Un1k0d3r
Serial killer! 3 279 Mr.Un1k0d3r
Looking for the flag? 3 416 Mr.Un1k0d3r
XSS Challenge 3 3 90 Mr.Un1k0d3r
XSS Challenge 4 3 112 Mr.Un1k0d3r
Facebook will never forget this one 3 119 Mr.Un1k0d3r
Captcha II 4 88 SynneR
Propaganda mail 4 113 NSEC 2015
Freedom Firewall 5 61 NSEC 2015
Password Reset As a Service 5 28 Mr.Un1k0d3r
Timesheet As a Service 5 22 Mr.Un1k0d3r
Read the unreadable 5 45 Mr.Un1k0d3r
PHP feature or 0day reloaded? 6 33 Mr.Un1k0d3r
I hate this one 6 133 Mr.Un1k0d3r
Orao's factory 6 64 NSEC 2015
Serial killer part 2 6 21 HoLyVieR
XSS Challenge 5 6 74 Mr.Un1k0d3r
XPATH of hell! 7 92 Francois L. Feat Mr.Un1k0d3r
Looking for god in your life? 8 28 NSEC 2015
Secure Mail 8 43 GoSec CTF 2014

Flag statistics (92593 submitted so far)

Number of points Number of validation Number of points Number of validation
14 points 32 13 points 34
12 points 84 11 points 16
10 points 194 9 points 75
8 points 589 7 points 1248
6 points 2808 5 points 2590
4 points 5589 3 points 11013
2 points 30679 1 points 37642

Shoutbox

2018-02-19 11:18:15 - destiny
@towel are you an admin? Just trying to find out when sandboxes will be fixed, I still have a lot to finish here!
2018-02-17 20:35:33 - magvay
30
2018-02-13 23:23:48 - Towel
@jusb3 looks fine to me, feel free PM me if you are sitll having issues :)
2018-02-13 19:46:56 - jusb3
Is challenge 38 working 100%? I think there is something missing...
2018-02-12 17:15:53 - Bad23
Allarum e game kali nirthyo???
2018-02-12 15:49:23 - destiny
everything down, end of this site? :(
2018-02-08 01:36:43 - yudhaprimadiansyah
testttt
2018-02-07 11:02:13 - pssivakumar5354
HI.............
2018-02-03 23:54:13 - triopas
hmm
2018-02-03 05:04:56 - heir_of_slytherin
thanks LOLAN ....... pakshe sowhrudatinu ni 2 perkinte vilaidumennu nan karutiyilla........perkil tudangiyatalla nammude sowhrudam perkil atu avasanikukem illa....atond aliya ni perk maranneku....
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.

top