Switch to lite version

272 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 Up
Captcha I sandbox is Up Propaganda mail sandbox is Down
Basics of Linux x64 shellcoding sandbox is Up 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 Up Bash Jail 1 sandbox is Down

Challenges


Coding challenges (17)

Challenges descriptions Points Validation Author
Hash me please 2 1405 Mr.Un1k0d3r
Ask your grandpa! 2 549 Mr.Un1k0d3r's Dad
Hash me reloaded 3 854 Mr.Un1k0d3r
I hate mathematics 3 934 Mr.Un1k0d3r
Ask your grandpa again! 4 175 Mr.Un1k0d3r's Dad
Hash breaker 4 722 Mr.Un1k0d3r
I saw a little elf 4 280 Mr.Un1k0d3r
Hash breaker reloaded 5 449 Mr.Un1k0d3r
Execute me if you can 5 263 Mr.Un1k0d3r
Read me if you can 6 237 Mr.Un1k0d3r
Hash breaker reloaded again 6 159 Mr.Un1k0d3r
Ascii Art 6 375 Mr.Un1k0d3r
Execute me if you can again 6 133 Mr.Un1k0d3r
Xor me if you can 6 249 Mr.Un1k0d3r
Number game 7 204 Mr.Un1k0d3r
Classic Sudoku 7 180 Mr.Un1k0d3r
Find the right word 7 186 Mr.Un1k0d3r

Cryptography (22)

Challenges descriptions Points Validation Author
Some martian message 1 2963 Mr.Un1k0d3r
File recovery 1 1522 Mr.Un1k0d3r
Martian message part 2 2 1296 Mr.Un1k0d3r
Fashion Victim 2 215 GoSec CTF 2014
Public key recovery 2 837 Mr.Un1k0d3r
Hangovers and more: Bacon 3 236 SynneR
Can you understand this sentence? 3 340 Mr.Un1k0d3r
I Lost my password 3 638 Mr.Un1k0d3r
Martian message part 3 3 528 Mr.Un1k0d3r
Encrypted Zip 4 302 Mr.Un1k0d3r
Crypto over the network 4 102 Mr.Un1k0d3r
Crypto Object 4 93 GoSec CTF 2014
Is it a secure string? 5 150 Cedrick Chaput
Free Flag Encrypter 5 9 Towel
Welcome to the asylum 6 38 GoSec CTF 2014
Pattern is the key 6 27 Mr.Un1k0d3r
TotalSecure Message Encrypter 6 46 Towel
Crypto is not good as you think 8 88 Mr.Un1k0d3r
Spies 9 16 CS Games 2016 (HoLyVieR)
Rusty RSA message signing service 9 10 b0n0n & An0n
TotalSecure Message Encrypter V2 10 10 Towel
Unicorn As A Service 11 3 Towel

Forensics (28)

Challenges descriptions Points Validation Author
Who I am part 2 1 108 Mr.Un1k0d3r
I made a dd of Agent Smith usb key 1 1759 Cedrick Chaput
I love cat 2 194 Mr.Un1k0d3r
Dr. Pouce 2 1246 Cedrick Chaput
Attention Dinosaure Survive 2 687 PRL
The good, the bad and the ugly 2 42 Mr.Un1k0d3r
1 / 3 Do not waste the environment 2 541 PRL
Hide my ass in my home! 2 851 Cedrick Chaput
Hey Chuck where is the flag? 2 838 Mr.Un1k0d3r
Meat Loaf 2 111 Ekse
Who I am? 2 461 Mr.Un1k0d3r
The words flew but writing remains 3 74 Martin Dube
2 / 3 Did you see my desktop? 3 473 PRL
Are you Twisted Insane? 3 19 Cedrick Feat Mr.Un1k0d3r
Someone steal my flag! 3 204 Mr.Un1k0d3r
802.1X Part 1 4 22 NSEC 2015
3 / 3 Suspicious account password? 4 380 PRL
Poor internet connection 4 265 Cedrick Chaput
Agent Smith reloaded 4 133 Cedrick Chaput
R.I.P MsPaint 4 29 Misker
We got breached 5 110 Mr.Un1k0d3r
Someone steal my flag again 5 50 GoSec CTF 2014
Ping pong 5 44 SynneR
Spy my girl 5 113 Cedrick Chaput
We got breached again 6 91 Mr.Un1k0d3r
Russian Crypto Roulette 6 39 SynneR
Really Depressed Protocol 7 42 SynneR
802.1X Part 2 8 14 NSEC 2015

Jail Escaping (21)

Challenges descriptions Points Validation Author
Bash Jail 1 1 830 Mr.Un1k0d3r
Bash Jail 2 2 568 Mr.Un1k0d3r
Bash Jail 3 3 342 Mr.Un1k0d3r
Bash Jail 4 4 196 Mr.Un1k0d3r
Bash Jail 5 6 81 Mr.Un1k0d3r
Bash Jail 6 8 6 Garigouster
Bash Jail 7 12 5 Garigouster
C Jail 1 1 153 Mr.Un1k0d3r
C Jail 2 2 100 Mr.Un1k0d3r
C Jail 3 3 78 Mr.Un1k0d3r
C Jail 4 5 3 Garigouster
C Jail 5 7 0 Garigouster
C Jail 6 14 0 Garigouster
PHP Jail 1 1 276 Mr.Un1k0d3r
PHP Jail 2 2 177 Mr.Un1k0d3r
PHP Jail 3 3 113 Mr.Un1k0d3r
PHP Jail 4 4 86 Mr.Un1k0d3r
PHP Jail 5 6 69 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 3655 Mr.Un1k0d3r
Hashing is more secure 1 3205 Mr.Un1k0d3r
Then obfuscation is more secure 1 2359 Mr.Un1k0d3r
Why not? 2 2214 Mr.Un1k0d3r
Valid key required 2 451 Francois Lajeunesse
Most Secure Crypto Algo 2 648 Mr.Un1k0d3r
Why not be more secure? 5 290 Mr.Un1k0d3r
WTF Lol! 6 110 HoLyVieR
Beauty and the beast 7 13 Mr.Un1k0d3r

Malware Analysis (17)

Challenges descriptions Points Validation Author
APT 1337 4 10 NorthSEC 2017 - Mr.Un1k0d3r
Capture 1 Part 1 1 337 Mr.Un1k0d3r
Capture 1 Part 2 1 105 Mr.Un1k0d3r
Capture 1 Part 3 1 117 Mr.Un1k0d3r
Capture 1 Part 4 2 19 Mr.Un1k0d3r
Capture 1 Part 5 3 21 Mr.Un1k0d3r
Capture 1 Part 6 3 85 Mr.Un1k0d3r
Capture 1 Part 7 3 17 Mr.Un1k0d3r
Capture 2 Part 1 1 33 Mr.Un1k0d3r
Capture 2 Part 2 1 57 Mr.Un1k0d3r
Capture 2 Part 3 1 58 Mr.Un1k0d3r
Capture 2 Part 4 3 56 Mr.Un1k0d3r
Capture 2 Part 5 4 20 Mr.Un1k0d3r
Capture 2 Part 6 7 6 Mr.Un1k0d3r
Just Another MBR Ransomware 8 3 Towel
RAO democracy 4 15 NorthSEC 2017 - Mr.Un1k0d3r
WebShell of Hell 5 7 An0n

Pwnage Linux (19)

Challenges descriptions Points Validation Author
Level1 Pwnage Linux Level Up 1 447 P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up 2 293 P-Y Feat Martin Dube
Remote Auth 2 96 NSEC 2015
Level3 Pwnage Linux Level Up 3 218 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 1245 Mr.Un1k0d3r
Can you see through the star 2 782 Mr.Un1k0d3r
Crack Me 1 3 506 Mr.Un1k0d3r
Heap allocator 3 124 NSEC 2015
Intro To Sparc 3 34 Ian-Kyle Wagner
Kernel introduction 3 131 Mr.Un1k0d3r
Introduction to MIPS 3 185 Mr.Un1k0d3r
Windows x86 reversing is cool 3 458 Mr.Un1k0d3r
I never forget the Nintendo 64 3 395 Mr.Un1k0d3r
Introduction to ARM 4 204 Mr.Un1k0d3r
Old School 4 21 Towel
Altera? 4 27 NSEC 2016
ASM Lovers 4 42 NSEC 2016
Power to the people 4 22 NSEC 2015
Windows API for the win 4 206 Mr.Un1k0d3r
Wrong byte! 4 172 Mr.Un1k0d3r
Let's take a detour 4 45 Floesen
Phenix Golgoth 5 22 Hackfest 2016
Can I speak with the kernel? 5 27 Zerosum0x0
Back to our roots 5 72 Mr.Un1k0d3r
Virtual World 5 52 NSEC 2015
Smart enough? 5 66 NSEC 2015
RingZer0 Authenticator 5 151 Ekse
Pwndr3 Authenticator 5 31 Pwndr3
Flag stealer 6 42 Ekse
Update Manager 6 41 Ekse
Need a client 6 71 Mr.Un1k0d3r
I Think I forgot to take out the garbage! 6 12 Mr.Un1k0d3r
Buggy Bunny 7 5 Garigouster
The supreme bash 7 8 NorthSEC 2017 - Mr.Un1k0d3r
SOS Lib 7 13 Mr.Un1k0d3r
Armed and ready 7 8 NSEC 2015
Rebate As A Service 8 22 NSEC 2016
You're not welcome 8 28 Towel
License to kill 8 0 Mr.Un1k0d3r
Keygen time again 10 18 GoSec CTF 2014
Trolling the troll 10 24 Mr.Un1k0d3r
The unknown challenge 11 11 Mr.Un1k0d3r
You're not welcome again! 12 10 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 (27)

Challenges descriptions Points Validation Author
Most basic SQLi pattern. 1 4390 Mr.Un1k0d3r
ACL rulezzz the world. 2 2285 Mart
Login portal 1 2 1474 Mr.Un1k0d3r
Random Login Form 2 521 Mr.Un1k0d3r
Just another login form 2 783 Mr.Un1k0d3r
Po po po po postgresql 2 742 Mr.Un1k0d3r
0 Day Store 3 46 NSEC 2015
Don't mess with Noemie; she hates admin! 3 273 Mr.Un1k0d3r
What's the definition of NULL 3 293 Mr.Un1k0d3r
Login portal 2 3 224 Mr.Un1k0d3r
Quote of the day 4 312 Mr.Un1k0d3r
Thinking outside the box is the key 4 291 Mr.Un1k0d3r
No more hacking for me! 4 155 Mr.Un1k0d3r
Quote of the day reloaded 5 131 Mr.Un1k0d3r
Hot Single Mom 6 89 GoSec CTF 2014
Login portal 3 6 145 Mr.Un1k0d3r
When it's lite it's not necessarily easy 6 132 Mr.Un1k0d3r
Internet As A Service 7 22 Mr.Un1k0d3r
Login portal 4 7 81 Mr.Un1k0d3r
Size DOES matter 7 94 Mr.Un1k0d3r
/etc/passwd 7 91 Mr.Un1k0d3r
Groups of hacker 7 89 Mr.Un1k0d3r
The useless search tool 8 64 Mr.Un1k0d3r
Login portal 5 8 50 Mr.Un1k0d3r
stackoverflow.com lied to me... again 9 19 Corb3nik
Login portal 6 10 39 Mr.Un1k0d3r
!Mysql + Brain fart 13 21 Mr.Un1k0d3r

Steganography (21)

Challenges descriptions Points Validation Author
SigID Level 1 1 445 Guenael
You're lost? Use the map 1 717 Mr.Un1k0d3r
Victor you're hidding me something 1 1219 Cedrick Chaput
The Sloth 2 39 Misker
Hidden In Plain Sight 2 307 NSEC 2015
I'm Goronyo Babad Nigerian prince 2 177 Mr.Un1k0d3r
Missing Pieces 2 373 Cedrick Chaput
Brainsick 2 452 Mr.Un1k0d3r
Look inside the house 2 478 Mr.Un1k0d3r
The vestige of dial-up Internet 2 33 Uid0
Victor reloaded 2 551 Cedrick Chaput
A ghost sound 2 448 Cedrick Chaput
Pixel Everywhere 2 59 Mr.Un1k0d3r
Love Letter 3 89 Towel
5 beautiful colors 3 11 PublicName
Can you see through the matrix! 3 89 Mr.Un1k0d3r
Your old friend Orloge Simard 3 335 Cedrick Chaput
Stay Classy! 3 4 Sideni
Can you see through the matrix reloaded! 4 13 Towel
Walk the line! 5 83 Cedrick Chaput
SigID Level 2 6 4 Guenael

SysAdmin Linux (8)

Challenges descriptions Points Validation Author
SysAdmin Part 1 1 1165 Cedrick Chaput
SysAdmin Part 2 1 801 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3 1 419 Mr.Un1k0d3r
SysAdmin Part 4 2 518 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5 2 232 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6 3 246 Cedrick Chaput
SysAdmin Part 7 4 180 Cedrick Chaput
SysAdmin Part 8 4 254 Cedrick Feat Mr.Un1k0d3r

Web Warning (36)

Challenges descriptions Points Validation Author
Big Brother is watching 1 1759 Mr.Un1k0d3r
Looking for password file 1 1995 Mr.Un1k0d3r
Area 51 1 1358 Mr.Un1k0d3r
Headache 1 1885 Mr.Un1k0d3r
Words mean something? 1 1470 Mr.Un1k0d3r
Admin Portal 2 589 Mr.Un1k0d3r
XSS Challenge 1 2 178 Mr.Un1k0d3r
Captcha I 2 352 SynneR
Unreadable captcha 2 170 SynneR
XSS Challenge 2 2 208 Mr.Un1k0d3r
Password reset 2 549 Mr.Un1k0d3r
PHP Fairy 2 232 nic-Lovin
Malicious upload 2 305 Mr.Un1k0d3r
Security thru obscurity! 2 576 Mr.Un1k0d3r
REST in peace 3 123 GoSec CTF 2014
PHP feature or 0day? 3 168 Mr.Un1k0d3r
Password reset reloaded 3 229 Mr.Un1k0d3r
Serial killer! 3 272 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 6 130 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 90 Francois L. Feat Mr.Un1k0d3r
Looking for god in your life? 8 28 NSEC 2015
Secure Mail 8 43 GoSec CTF 2014

Flag statistics (87665 submitted so far)

Number of points Number of validation Number of points Number of validation
14 points 32 13 points 32
12 points 83 11 points 14
10 points 186 9 points 66
8 points 545 7 points 1197
6 points 2719 5 points 2482
4 points 5383 3 points 10467
2 points 28852 1 points 35607

Shoutbox

2017-11-21 19:23:41 - pafejake
yop
2017-11-21 15:17:39 - pentest
"'<>zboub
2017-11-21 14:43:12 - pentest
Hello here
2017-11-20 09:10:21 - freesoulbg
Hey! Can you gime me SQL inj fot joomla 3.8.2 . I work in this firm https://divinitas-crew.com/ , but they don`t pay me from 12 weeks. HELP!
2017-11-17 10:49:37 - fabio
SysAdmin Linux challenges are not working
2017-11-14 05:40:21 - q3rv0
all exploiting challenges down
2017-11-12 17:57:48 - sarin
SQL '0 day store' && 'Internet As A Service' Down.
2017-11-12 17:55:28 - sarin
XSS [1-5] down, Captcha[1-3] down and Web challenges down. when will it come?
2017-11-11 15:39:45 - wiz3kid
port 20003 chal 240 down
2017-11-11 05:54:19 - dank23
I love cat - ringzer0team.com port 1000 is down
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