Switch to lite version Switch to dark theme

320 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 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 2403 Mr.Un1k0d3r
Ask your grandpa! 2 900 Mr.Un1k0d3r's Dad
Hash me reloaded 3 1350 Mr.Un1k0d3r
I hate mathematics 3 1453 Mr.Un1k0d3r
Ask your grandpa again! 4 295 Mr.Un1k0d3r's Dad
Hash breaker 4 1100 Mr.Un1k0d3r
I saw a little elf 4 393 Mr.Un1k0d3r
Hash breaker reloaded 5 650 Mr.Un1k0d3r
Execute me if you can 5 338 Mr.Un1k0d3r
Read me if you can 6 344 Mr.Un1k0d3r
Hash breaker reloaded again 6 218 Mr.Un1k0d3r
Ascii Art 6 522 Mr.Un1k0d3r
Execute me if you can again 6 167 Mr.Un1k0d3r
Xor me if you can 6 331 Mr.Un1k0d3r
Number game 7 240 Mr.Un1k0d3r remade by theindian
Classic Sudoku 7 206 Mr.Un1k0d3r remade by dread_knight
Find the right word 7 261 Mr.Un1k0d3r

Cryptography (32)

Challenges descriptions Points Validation Author
Some martian message 1 5007 Mr.Un1k0d3r
You're Drunk! 1 981 Mr.Un1k0d3r
File recovery 1 2389 Mr.Un1k0d3r
Public key recovery 2 1172 Mr.Un1k0d3r
Fashion Victim 2 383 GoSec CTF 2014
Martian message part 2 2 2184 Mr.Un1k0d3r
Can you understand this sentence? 3 536 Mr.Un1k0d3r
Let's Play Scrabble! 3 21 Madness
I Lost my password 3 924 Mr.Un1k0d3r
Martian message part 3 3 821 Mr.Un1k0d3r
Hangovers and more: Bacon 3 420 SynneR
Crypto Leak 4 37 NSEC 2018 (Towel)
Crypto Object 4 154 GoSec CTF 2014
Crypto over the network 4 105 Mr.Un1k0d3r
Encrypted Zip 4 445 Mr.Un1k0d3r
Let's Play Scrabble! Part 2 5 8 Madness
Jabber 5 4 Madness
Is it a secure string? 5 211 Cedrick Chaput
Free Flag Encrypter 5 14 Towel
Pattern is the key 6 38 Mr.Un1k0d3r
TotalSecure Message Encrypter 6 76 Towel
Welcome to the asylum 6 49 GoSec CTF 2014
Homemade craptography #2 7 4 holyvier(ft. large software company)
Jabber Part 2 7 4 Madness
Crypto is not good as you think 8 123 Mr.Un1k0d3r
Mars Log 8 6 NSEC 2018 (Towel)
Homemade Craptography 8 6 NSEC 2018 (Holyvier)
Spies 9 28 CS Games 2016 (HoLyVieR)
Rusty RSA message signing service 9 10 b0n0n & An0n
TotalSecure Message Encrypter V2 10 17 Towel
Polly Wants a Cracker 10 2 Madness
Unicorn As A Service 11 7 Towel

Exotic Data Storage (4)

Challenges descriptions Points Validation Author
Just another login form 2 1330 Mr.Un1k0d3r
DON'T login as admin 2 17 mbergeron
I forgot my password 3 17 mbergeron
Inspiration 6 22 NSEC 2019 (becojo)

Forensics (28)

Challenges descriptions Points Validation Author
Who I am part 2 1 349 Mr.Un1k0d3r
I made a dd of Agent Smith usb key 1 2546 Cedrick Chaput
I love cat 2 315 Mr.Un1k0d3r
Dr. Pouce 2 1891 Cedrick Chaput
Attention Dinosaure Survive 2 1029 PRL
The good, the bad and the ugly 2 63 Mr.Un1k0d3r
1 / 3 Do not waste the environment 2 805 PRL
Hide my ass in my home! 2 1231 Cedrick Chaput
Hey Chuck where is the flag? 2 1202 Mr.Un1k0d3r
Meat Loaf 2 198 Ekse
Who I am? 2 747 Mr.Un1k0d3r
The words flew but writing remains 3 131 Martin Dube
2 / 3 Did you see my desktop? 3 685 PRL
Are you Twisted Insane? 3 23 Cedrick Feat Mr.Un1k0d3r
Someone steal my flag! 3 304 Mr.Un1k0d3r
802.1X Part 1 4 49 NSEC 2015
3 / 3 Suspicious account password? 4 558 PRL
Poor internet connection 4 342 Cedrick Chaput
Agent Smith reloaded 4 215 Cedrick Chaput
R.I.P MsPaint 4 81 Misker
We got breached 5 169 Mr.Un1k0d3r
Someone steal my flag again 5 92 GoSec CTF 2014
Ping pong 5 73 SynneR
Spy my girl 5 159 Cedrick Chaput
We got breached again 6 128 Mr.Un1k0d3r
Russian Crypto Roulette 6 59 SynneR
Really Depressed Protocol 7 66 SynneR
802.1X Part 2 8 37 NSEC 2015

Jail Escaping (21)

Challenges descriptions Points Validation Author
Bash Jail 1 1 1709 Mr.Un1k0d3r
Bash Jail 2 2 1100 Mr.Un1k0d3r
Bash Jail 3 3 625 Mr.Un1k0d3r
Bash Jail 4 4 342 Mr.Un1k0d3r
Bash Jail 5 6 142 Mr.Un1k0d3r
Bash Jail 6 8 17 Garigouster
Bash Jail 7 12 13 Garigouster
C Jail 1 1 279 Mr.Un1k0d3r
C Jail 2 2 184 Mr.Un1k0d3r
C Jail 3 3 152 Mr.Un1k0d3r
C Jail 4 5 14 Garigouster
C Jail 5 7 10 Garigouster
C Jail 6 14 5 Garigouster
PHP Jail 1 1 449 Mr.Un1k0d3r
PHP Jail 2 2 292 Mr.Un1k0d3r
PHP Jail 3 3 196 Mr.Un1k0d3r
PHP Jail 4 4 145 Mr.Un1k0d3r
PHP Jail 5 6 116 Mr.Un1k0d3r
PyJail 1 3 178 Martin Dube
PyJail 2 5 99 Martin Dube
PyJail 3 6 34 Martin Dube

JavaScript (10)

Challenges descriptions Points Validation Author
Client side validation is bad! 1 5762 Mr.Un1k0d3r
Hashing is more secure 1 5020 Mr.Un1k0d3r
Then obfuscation is more secure 1 3781 Mr.Un1k0d3r
Most Secure Crypto Algo 2 1277 Mr.Un1k0d3r
Valid key required 2 749 Francois Lajeunesse
Why not? 2 3089 Mr.Un1k0d3r
Why not be more secure? 5 463 Mr.Un1k0d3r
WTF Lol! 6 213 HoLyVieR
Interstellar PhoneBook 6 29 NSEC 2018 (Holyvier)
Beauty and the beast 7 32 Mr.Un1k0d3r

Malware Analysis (17)

Challenges descriptions Points Validation Author
APT 1337 4 30 NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1 1 504 Mr.Un1k0d3r
Capture 1 Part 2 1 171 Mr.Un1k0d3r
Capture 1 Part 3 1 193 Mr.Un1k0d3r
Capture 1 Part 4 2 19 Mr.Un1k0d3r
Capture 1 Part 5 3 45 Mr.Un1k0d3r
Capture 1 Part 6 3 128 Mr.Un1k0d3r
Capture 1 Part 7 3 23 Mr.Un1k0d3r
Capture 2 Part 1 1 50 Mr.Un1k0d3r
Capture 2 Part 2 1 87 Mr.Un1k0d3r
Capture 2 Part 3 1 88 Mr.Un1k0d3r
Capture 2 Part 4 3 87 Mr.Un1k0d3r
Capture 2 Part 5 4 33 Mr.Un1k0d3r
Capture 2 Part 6 7 14 Mr.Un1k0d3r
Just Another MBR Ransomware 8 15 Towel
RAO democracy 4 43 NSEC 2017 (Mr.Un1k0d3r)
WebShell of Hell 5 7 An0n

Pwnage Linux (19)

Challenges descriptions Points Validation Author
Level1 Pwnage Linux Level Up 1 526 P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up 2 339 P-Y Feat Martin Dube
Remote Auth 2 96 NSEC 2015
Level3 Pwnage Linux Level Up 3 247 P-Y Feat Martin Dube
Level1 Pwnage Linux x86_64 3 175 Mr.Un1k0d3r
Level2 Pwnage Linux x86_64 4 59 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 5 117 Mr.Un1k0d3r
Friendly race 5 21 Garigouster
RPCFTW! 6 25 NSEC 2015
Jack the heaper 6 18 uaf.io
Level3 Pwnage Linux x86_64 7 53 Mr.Un1k0d3r
Level4 Pwnage Linux x86_64 7 32 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 (52)

Challenges descriptions Points Validation Author
Time to learn x86 ASM & gdb 2 1757 Mr.Un1k0d3r
Can you see through the star 2 1054 Mr.Un1k0d3r
See No Evil - Part 1 2 30 alxbl
Crack Me 1 3 680 Mr.Un1k0d3r
Heap allocator 3 214 NSEC 2015
Intro To Sparc 3 126 Ian-Kyle Wagner
Kernel introduction 3 210 Mr.Un1k0d3r
See No Evil - Part 2 3 24 alxbl
See No Evil - Part 3 3 23 alxbl
Introduction to MIPS 3 272 Mr.Un1k0d3r
Windows x86 reversing is cool 3 612 Mr.Un1k0d3r
I never forget the Nintendo 64 3 553 Mr.Un1k0d3r
Power to the people 4 43 NSEC 2015
Altera? 4 47 NSEC 2016
ASM Lovers 4 75 NSEC 2016
See No Evil - Part 5 4 17 alxbl
Old School 4 49 Towel
I love tea! 4 0 nic-lovin
See No Evil - Part 4 4 20 alxbl
Let's take a detour 4 71 Floesen
Windows API for the win 4 283 Mr.Un1k0d3r
Wrong byte! 4 239 Mr.Un1k0d3r
Introduction to ARM 4 309 Mr.Un1k0d3r
Virtual World 5 53 NSEC 2015
Phenix Golgoth 5 38 Hackfest 2016
WASM Part 1 5 47 NSEC 2018 (Isra17)
RingZer0 Authenticator 5 206 Ekse
Back to our roots 5 92 Mr.Un1k0d3r
Can I speak with the kernel? 5 54 Zerosum0x0
The MI7 password prompt 5 43 NSEC 2018 (Mr.Un1k0d3r)
Smart enough? 5 95 NSEC 2015
Pwndr3 Authenticator 5 47 Pwndr3
I Think I forgot to take out the garbage! 6 18 Mr.Un1k0d3r
Need a client 6 71 Mr.Un1k0d3r
Flag stealer 6 63 Ekse
Update Manager 6 50 Ekse
The supreme bash 7 18 NSEC 2017 (Mr.Un1k0d3r)
SOS Lib 7 22 Mr.Un1k0d3r
Buggy Bunny 7 10 Garigouster
Armed and ready 7 11 NSEC 2015
Rebate As A Service 8 36 NSEC 2016
You're not welcome 8 47 Towel
WASM Part 2 8 8 NSEC 2018 (Isra17)
License to kill 8 0 Mr.Un1k0d3r
The Matrix 9 10 Towel
Trolling the troll 10 30 Mr.Un1k0d3r
Keygen time again 10 29 GoSec CTF 2014
The unknown challenge 11 15 Mr.Un1k0d3r
WASM Part 3 12 6 NSEC 2018 (Isra17)
You're not welcome again! 12 19 Towel
The oracle 13 17 Towel
Mars Reloaded 18 8 NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions Points Validation Author
Basics of Linux x64 shellcoding 2 457 Mr.Un1k0d3r
Linux x64 shellcoding level 2 4 232 Mr.Un1k0d3r
Linux x64 shellcoding level 3 6 179 Mr.Un1k0d3r
Linux x64 shellcoding level 4 8 141 Mr.Un1k0d3r
Linux x64 shellcoding level 5 10 98 Mr.Un1k0d3r
Linux x64 shellcoding level 6 12 82 Mr.Un1k0d3r
Linux x64 shellcoding level 7 14 44 Mr.Un1k0d3r

SQL Injection (32)

Challenges descriptions Points Validation Author
Most basic SQLi pattern. 1 7182 Mr.Un1k0d3r
Random Login Form 2 1239 Mr.Un1k0d3r
Po po po po postgresql 2 1375 Mr.Un1k0d3r
Login portal 1 2 2657 Mr.Un1k0d3r
ACL rulezzz the world. 2 3729 Mart
Login portal 2 3 433 Mr.Un1k0d3r
Don't mess with Noemie; she hates admin! 3 624 Mr.Un1k0d3r
0 Day Store 3 106 NSEC 2015
What's the definition of NULL 3 556 Mr.Un1k0d3r
Don't Stumble in the Process 4 38 mbergeron
Brain Teaser 1 4 16 Sideni
Quote of the day 4 514 Mr.Un1k0d3r
No more hacking for me! 4 251 Mr.Un1k0d3r
Thinking outside the box is the key 4 443 Mr.Un1k0d3r
Quote of the day reloaded 5 200 Mr.Un1k0d3r
When it's lite it's not necessarily easy 6 182 Mr.Un1k0d3r
Login portal 3 6 207 Mr.Un1k0d3r
Hot Single Mom 6 138 GoSec CTF 2014
Internet As A Service 7 77 Mr.Un1k0d3r
Size DOES matter 7 124 Mr.Un1k0d3r
Brain Teaser 2 7 9 Sideni
/etc/passwd 7 126 Mr.Un1k0d3r
Groups of hacker 7 144 Mr.Un1k0d3r
Login portal 4 7 127 Mr.Un1k0d3r
Login portal 5 8 67 Mr.Un1k0d3r
The useless search tool 8 110 Mr.Un1k0d3r
stackoverflow.com lied to me... again 9 65 Corb3nik
Doctor Who ? 9 6 Sideni
Login portal 6 10 56 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 (25)

Challenges descriptions Points Validation Author
You're lost? Use the map 1 1294 Mr.Un1k0d3r
Victor you're hidding me something 1 1936 Cedrick Chaput
SigID Level 1 1 779 Guenael
Pixel Everywhere 2 97 Mr.Un1k0d3r
I'm Goronyo Babad Nigerian prince 2 365 Mr.Un1k0d3r
The vestige of dial-up Internet 2 69 Uid0
Missing Pieces 2 612 Cedrick Chaput
Brainsick 2 680 Mr.Un1k0d3r
Hidden In Plain Sight 2 497 NSEC 2015
The Sloth 2 87 Misker
Victor reloaded 2 810 Cedrick Chaput
A ghost sound 2 670 Cedrick Chaput
Look inside the house 2 739 Mr.Un1k0d3r
Crazy Cat Lady 3 47 Madness
Love Letter 3 153 Towel
5 beautiful colors 3 33 PublicName
Can you see through the matrix! 3 125 Mr.Un1k0d3r
Your old friend Orloge Simard 3 482 Cedrick Chaput
Not just 64 4 11 Madness
Stay Classy! 4 17 Sideni
Can you see through the matrix reloaded! 4 26 Towel
Even the Odds 4 7 alxbl
Walk the line! 5 124 Cedrick Chaput
Stop the violence 5 15 jusb3
SigID Level 2 6 8 Guenael

SysAdmin Linux (8)

Challenges descriptions Points Validation Author
SysAdmin Part 1 1 1892 Cedrick Chaput
SysAdmin Part 2 1 1343 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3 1 796 Mr.Un1k0d3r
SysAdmin Part 4 2 812 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5 2 471 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6 3 453 Cedrick Chaput
SysAdmin Part 7 4 360 Cedrick Chaput
SysAdmin Part 8 4 440 Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions Points Validation Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1 7 34 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1 3 22 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2 7 21 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3 10 21 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 (42)

Challenges descriptions Points Validation Author
Area 51 1 2083 Mr.Un1k0d3r
Words mean something? 1 2247 Mr.Un1k0d3r
Headache 1 2866 Mr.Un1k0d3r
Hacking skill are optional 1 83 Breached Company
Big Brother is watching 1 3184 Mr.Un1k0d3r
Looking for password file 1 3185 Mr.Un1k0d3r
XSS Challenge 1 2 251 Mr.Un1k0d3r
Admin Portal 2 974 Mr.Un1k0d3r
Password reset 2 775 Mr.Un1k0d3r
XSS Challenge 2 2 277 Mr.Un1k0d3r
PHP Fairy 2 588 nic-Lovin
Unreadable captcha 2 310 SynneR
Malicious upload 2 433 Mr.Un1k0d3r
Security thru obscurity! 2 825 Mr.Un1k0d3r
Captcha I 2 447 SynneR
PHP feature or 0day? 3 320 Mr.Un1k0d3r
JWT pitfall 1 3 20 Mr.Un1k0d3r
REST in peace 3 186 GoSec CTF 2014
Serial killer! 3 390 Mr.Un1k0d3r
Password reset reloaded 3 300 Mr.Un1k0d3r
Looking for the flag? 3 603 Mr.Un1k0d3r
Facebook will never forget this one 3 169 Mr.Un1k0d3r
XSS Challenge 4 3 158 Mr.Un1k0d3r
XSS Challenge 3 3 142 Mr.Un1k0d3r
Propaganda mail 4 186 NSEC 2015
Captcha II 4 111 SynneR
Captcha III 4 30 mbergeron
Lost API 5 7 holyvier (NSEC 2019)
Password Reset As a Service 5 36 Mr.Un1k0d3r
Super Lottery 5 38 Sparkix
Read the unreadable 5 74 Mr.Un1k0d3r
Freedom Firewall 5 93 NSEC 2015
The archive 5 8 holyvier (NSEC 2019)
Timesheet As a Service 5 22 Mr.Un1k0d3r
I hate this one 6 187 Mr.Un1k0d3r
Serial killer part 2 6 36 HoLyVieR
PHP feature or 0day reloaded? 6 65 Mr.Un1k0d3r
XSS Challenge 5 6 97 Mr.Un1k0d3r
Orao's factory 6 93 NSEC 2015
XPATH of hell! 7 108 Francois L. Feat Mr.Un1k0d3r
Secure Mail 8 63 GoSec CTF 2014
Looking for god in your life? 8 57 NSEC 2015

Flag statistics (140810 submitted so far)

Number of points Number of validation Number of points Number of validation
18 points 8 15 points 14
14 points 49 13 points 46
12 points 127 11 points 34
10 points 267 9 points 140
8 points 819 7 points 1753
6 points 3925 5 points 3747
4 points 8441 3 points 16577
2 points 46102 1 points 58761

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

2019-10-11 23:53:02 - 0mount
<b> Harusny kalau vuln XSS ini bold </b>
2019-10-01 22:27:26 - madness
@Qubn if you can't read it clearly, then you are not finished. I can't say any more without giving too much away.
2019-09-27 11:42:38 - anonimo159
some clue to the "pixel everywhere" challenge
2019-09-18 04:55:40 - junglejuice
solved Really Depressed Protocol but flag not taken
2019-09-12 08:17:55 - nebo
</span>HellĂ” !<span>
2019-09-09 12:07:23 - behindy0uu
i only known hint about "Malicious Upload"
2019-09-09 12:06:59 - behindy0uu
hhmmm this forum useless for asking
2019-09-03 05:15:07 - sebastianpc
Hacking skill are optional??
2019-08-23 11:06:43 - behindy0uu
Hey any hint about "Malicious Upload", I try any trik no one work
2019-08-07 17:16:44 - Hyperfenix
m
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