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296 challenges are currently available


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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 Down
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 1854 Mr.Un1k0d3r
Ask your grandpa! 2 710 Mr.Un1k0d3r's Dad
Hash me reloaded 3 1092 Mr.Un1k0d3r
I hate mathematics 3 1189 Mr.Un1k0d3r
Ask your grandpa again! 4 227 Mr.Un1k0d3r's Dad
Hash breaker 4 886 Mr.Un1k0d3r
I saw a little elf 4 329 Mr.Un1k0d3r
Hash breaker reloaded 5 535 Mr.Un1k0d3r
Execute me if you can 5 293 Mr.Un1k0d3r
Read me if you can 6 275 Mr.Un1k0d3r
Hash breaker reloaded again 6 180 Mr.Un1k0d3r
Ascii Art 6 425 Mr.Un1k0d3r
Execute me if you can again 6 150 Mr.Un1k0d3r
Xor me if you can 6 283 Mr.Un1k0d3r
Number game 7 204 Mr.Un1k0d3r
Classic Sudoku 7 180 Mr.Un1k0d3r
Find the right word 7 211 Mr.Un1k0d3r

Cryptography (28)

Challenges descriptions Points Validation Author
Some martian message 1 3744 Mr.Un1k0d3r
You're Drunk! 1 320 Mr.Un1k0d3r
File recovery 1 1898 Mr.Un1k0d3r
Martian message part 2 2 1675 Mr.Un1k0d3r
Fashion Victim 2 272 GoSec CTF 2014
Public key recovery 2 973 Mr.Un1k0d3r
Hangovers and more: Bacon 3 300 SynneR
Can you understand this sentence? 3 420 Mr.Un1k0d3r
I Lost my password 3 756 Mr.Un1k0d3r
Martian message part 3 3 654 Mr.Un1k0d3r
Crypto over the network 4 105 Mr.Un1k0d3r
Crypto Leak 4 12 NSEC 2018 (Towel)
Crypto Object 4 108 GoSec CTF 2014
Encrypted Zip 4 345 Mr.Un1k0d3r
Is it a secure string? 5 175 Cedrick Chaput
Jabber 5 1 Madness
Free Flag Encrypter 5 14 Towel
Welcome to the asylum 6 44 GoSec CTF 2014
Pattern is the key 6 33 Mr.Un1k0d3r
TotalSecure Message Encrypter 6 62 Towel
Jabber Part 2 7 1 Madness
Crypto is not good as you think 8 111 Mr.Un1k0d3r
Homemade Craptography 8 2 NSEC 2018 (Holyvier)
Mars Log 8 5 NSEC 2018 (Towel)
Rusty RSA message signing service 9 10 b0n0n & An0n
Spies 9 24 CS Games 2016 (HoLyVieR)
TotalSecure Message Encrypter V2 10 15 Towel
Unicorn As A Service 11 6 Towel

Forensics (28)

Challenges descriptions Points Validation Author
Who I am part 2 1 204 Mr.Un1k0d3r
I made a dd of Agent Smith usb key 1 2078 Cedrick Chaput
I love cat 2 209 Mr.Un1k0d3r
Dr. Pouce 2 1508 Cedrick Chaput
Attention Dinosaure Survive 2 823 PRL
The good, the bad and the ugly 2 47 Mr.Un1k0d3r
1 / 3 Do not waste the environment 2 661 PRL
Hide my ass in my home! 2 1003 Cedrick Chaput
Hey Chuck where is the flag? 2 970 Mr.Un1k0d3r
Meat Loaf 2 160 Ekse
Who I am? 2 594 Mr.Un1k0d3r
The words flew but writing remains 3 103 Martin Dube
2 / 3 Did you see my desktop? 3 572 PRL
Are you Twisted Insane? 3 19 Cedrick Feat Mr.Un1k0d3r
Someone steal my flag! 3 246 Mr.Un1k0d3r
802.1X Part 1 4 36 NSEC 2015
3 / 3 Suspicious account password? 4 461 PRL
Poor internet connection 4 297 Cedrick Chaput
Agent Smith reloaded 4 171 Cedrick Chaput
R.I.P MsPaint 4 56 Misker
We got breached 5 141 Mr.Un1k0d3r
Someone steal my flag again 5 66 GoSec CTF 2014
Ping pong 5 62 SynneR
Spy my girl 5 134 Cedrick Chaput
We got breached again 6 113 Mr.Un1k0d3r
Russian Crypto Roulette 6 50 SynneR
Really Depressed Protocol 7 52 SynneR
802.1X Part 2 8 25 NSEC 2015

Jail Escaping (21)

Challenges descriptions Points Validation Author
Bash Jail 1 1 1129 Mr.Un1k0d3r
Bash Jail 2 2 754 Mr.Un1k0d3r
Bash Jail 3 3 457 Mr.Un1k0d3r
Bash Jail 4 4 260 Mr.Un1k0d3r
Bash Jail 5 6 109 Mr.Un1k0d3r
Bash Jail 6 8 11 Garigouster
Bash Jail 7 12 8 Garigouster
C Jail 1 1 206 Mr.Un1k0d3r
C Jail 2 2 140 Mr.Un1k0d3r
C Jail 3 3 115 Mr.Un1k0d3r
C Jail 4 5 12 Garigouster
C Jail 5 7 8 Garigouster
C Jail 6 14 3 Garigouster
PHP Jail 1 1 337 Mr.Un1k0d3r
PHP Jail 2 2 226 Mr.Un1k0d3r
PHP Jail 3 3 151 Mr.Un1k0d3r
PHP Jail 4 4 115 Mr.Un1k0d3r
PHP Jail 5 6 95 Mr.Un1k0d3r
PyJail 1 3 153 Martin Dube
PyJail 2 5 89 Martin Dube
PyJail 3 6 28 Martin Dube

JavaScript (10)

Challenges descriptions Points Validation Author
Client side validation is bad! 1 4499 Mr.Un1k0d3r
Hashing is more secure 1 3931 Mr.Un1k0d3r
Then obfuscation is more secure 1 2924 Mr.Un1k0d3r
Most Secure Crypto Algo 2 823 Mr.Un1k0d3r
Valid key required 2 568 Francois Lajeunesse
Why not? 2 2644 Mr.Un1k0d3r
Why not be more secure? 5 352 Mr.Un1k0d3r
WTF Lol! 6 156 HoLyVieR
Interstellar PhoneBook 6 9 NSEC 2018 (Holyvier)
Beauty and the beast 7 26 Mr.Un1k0d3r

Malware Analysis (17)

Challenges descriptions Points Validation Author
APT 1337 4 19 NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1 1 416 Mr.Un1k0d3r
Capture 1 Part 2 1 131 Mr.Un1k0d3r
Capture 1 Part 3 1 146 Mr.Un1k0d3r
Capture 1 Part 4 2 19 Mr.Un1k0d3r
Capture 1 Part 5 3 28 Mr.Un1k0d3r
Capture 1 Part 6 3 103 Mr.Un1k0d3r
Capture 1 Part 7 3 20 Mr.Un1k0d3r
Capture 2 Part 1 1 41 Mr.Un1k0d3r
Capture 2 Part 2 1 69 Mr.Un1k0d3r
Capture 2 Part 3 1 70 Mr.Un1k0d3r
Capture 2 Part 4 3 67 Mr.Un1k0d3r
Capture 2 Part 5 4 24 Mr.Un1k0d3r
Capture 2 Part 6 7 9 Mr.Un1k0d3r
Just Another MBR Ransomware 8 9 Towel
RAO democracy 4 32 NSEC 2017 (Mr.Un1k0d3r)
WebShell of Hell 5 7 An0n

Pwnage Linux (19)

Challenges descriptions Points Validation Author
Level1 Pwnage Linux Level Up 1 454 P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up 2 297 P-Y Feat Martin Dube
Remote Auth 2 96 NSEC 2015
Level3 Pwnage Linux Level Up 3 222 P-Y Feat Martin Dube
Level1 Pwnage Linux x86_64 3 150 Mr.Un1k0d3r
Level2 Pwnage Linux x86_64 4 50 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 42 Mr.Un1k0d3r
Level4 Pwnage Linux x86_64 7 25 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 (45)

Challenges descriptions Points Validation Author
Time to learn x86 ASM & gdb 2 1473 Mr.Un1k0d3r
Can you see through the star 2 901 Mr.Un1k0d3r
Crack Me 1 3 586 Mr.Un1k0d3r
Kernel introduction 3 163 Mr.Un1k0d3r
Heap allocator 3 167 NSEC 2015
Introduction to MIPS 3 221 Mr.Un1k0d3r
I never forget the Nintendo 64 3 453 Mr.Un1k0d3r
Windows x86 reversing is cool 3 532 Mr.Un1k0d3r
Intro To Sparc 3 82 Ian-Kyle Wagner
ASM Lovers 4 57 NSEC 2016
Wrong byte! 4 196 Mr.Un1k0d3r
Let's take a detour 4 59 Floesen
Altera? 4 33 NSEC 2016
Power to the people 4 29 NSEC 2015
Old School 4 35 Towel
Introduction to ARM 4 244 Mr.Un1k0d3r
Windows API for the win 4 247 Mr.Un1k0d3r
The MI7 password prompt 5 23 NSEC 2018 (Mr.Un1k0d3r)
WASM Part 1 5 26 NSEC 2018 (Isra17)
Virtual World 5 52 NSEC 2015
Smart enough? 5 83 NSEC 2015
Phenix Golgoth 5 30 Hackfest 2016
Can I speak with the kernel? 5 41 Zerosum0x0
Pwndr3 Authenticator 5 39 Pwndr3
Back to our roots 5 82 Mr.Un1k0d3r
RingZer0 Authenticator 5 173 Ekse
Update Manager 6 48 Ekse
Need a client 6 71 Mr.Un1k0d3r
Flag stealer 6 54 Ekse
I Think I forgot to take out the garbage! 6 16 Mr.Un1k0d3r
The supreme bash 7 13 NSEC 2017 (Mr.Un1k0d3r)
SOS Lib 7 16 Mr.Un1k0d3r
Buggy Bunny 7 6 Garigouster
Armed and ready 7 9 NSEC 2015
Rebate As A Service 8 27 NSEC 2016
You're not welcome 8 36 Towel
License to kill 8 0 Mr.Un1k0d3r
WASM Part 2 8 5 NSEC 2018 (Isra17)
Trolling the troll 10 26 Mr.Un1k0d3r
Keygen time again 10 23 GoSec CTF 2014
The unknown challenge 11 13 Mr.Un1k0d3r
You're not welcome again! 12 15 Towel
WASM Part 3 12 5 NSEC 2018 (Isra17)
The oracle 13 14 Towel
Mars Reloaded 18 4 NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions Points Validation Author
Basics of Linux x64 shellcoding 2 384 Mr.Un1k0d3r
Linux x64 shellcoding level 2 4 197 Mr.Un1k0d3r
Linux x64 shellcoding level 3 6 154 Mr.Un1k0d3r
Linux x64 shellcoding level 4 8 122 Mr.Un1k0d3r
Linux x64 shellcoding level 5 10 87 Mr.Un1k0d3r
Linux x64 shellcoding level 6 12 74 Mr.Un1k0d3r
Linux x64 shellcoding level 7 14 36 Mr.Un1k0d3r

SQL Injection (30)

Challenges descriptions Points Validation Author
Most basic SQLi pattern. 1 5509 Mr.Un1k0d3r
ACL rulezzz the world. 2 2915 Mart
Login portal 1 2 1984 Mr.Un1k0d3r
Random Login Form 2 772 Mr.Un1k0d3r
Just another login form 2 1050 Mr.Un1k0d3r
Po po po po postgresql 2 987 Mr.Un1k0d3r
0 Day Store 3 80 NSEC 2015
Don't mess with Noemie; she hates admin! 3 444 Mr.Un1k0d3r
What's the definition of NULL 3 408 Mr.Un1k0d3r
Login portal 2 3 312 Mr.Un1k0d3r
Quote of the day 4 404 Mr.Un1k0d3r
Thinking outside the box is the key 4 360 Mr.Un1k0d3r
No more hacking for me! 4 197 Mr.Un1k0d3r
Don't Stumble in the Process 4 19 Mbergeron
Quote of the day reloaded 5 162 Mr.Un1k0d3r
Hot Single Mom 6 112 GoSec CTF 2014
Login portal 3 6 172 Mr.Un1k0d3r
When it's lite it's not necessarily easy 6 153 Mr.Un1k0d3r
Internet As A Service 7 44 Mr.Un1k0d3r
Login portal 4 7 104 Mr.Un1k0d3r
Size DOES matter 7 105 Mr.Un1k0d3r
/etc/passwd 7 104 Mr.Un1k0d3r
Groups of hacker 7 130 Mr.Un1k0d3r
The useless search tool 8 94 Mr.Un1k0d3r
Login portal 5 8 59 Mr.Un1k0d3r
stackoverflow.com lied to me... again 9 42 Corb3nik
Login portal 6 10 47 Mr.Un1k0d3r
SQHell 11 10 Sideni feat. Mbergeron
Don't Stumble in the Process Reloaded 12 5 Mbergeron
!Mysql + Brain fart 13 26 Mr.Un1k0d3r

Steganography (23)

Challenges descriptions Points Validation Author
You're lost? Use the map 1 939 Mr.Un1k0d3r
Victor you're hidding me something 1 1488 Cedrick Chaput
SigID Level 1 1 594 Guenael
Pixel Everywhere 2 73 Mr.Un1k0d3r
Hidden In Plain Sight 2 391 NSEC 2015
The vestige of dial-up Internet 2 48 Uid0
Missing Pieces 2 483 Cedrick Chaput
Brainsick 2 546 Mr.Un1k0d3r
I'm Goronyo Babad Nigerian prince 2 263 Mr.Un1k0d3r
The Sloth 2 64 Misker
Victor reloaded 2 672 Cedrick Chaput
A ghost sound 2 555 Cedrick Chaput
Look inside the house 2 606 Mr.Un1k0d3r
Stay Classy! 3 6 Sideni
Can you see through the matrix! 3 105 Mr.Un1k0d3r
Love Letter 3 122 Towel
5 beautiful colors 3 16 PublicName
Crazy Cat Lady 3 10 Madness
Your old friend Orloge Simard 3 411 Cedrick Chaput
Can you see through the matrix reloaded! 4 16 Towel
Not just 64 4 6 Madness
Walk the line! 5 101 Cedrick Chaput
SigID Level 2 6 4 Guenael

SysAdmin Linux (8)

Challenges descriptions Points Validation Author
SysAdmin Part 1 1 1315 Cedrick Chaput
SysAdmin Part 2 1 924 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3 1 506 Mr.Un1k0d3r
SysAdmin Part 4 2 596 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5 2 296 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6 3 300 Cedrick Chaput
SysAdmin Part 7 4 228 Cedrick Chaput
SysAdmin Part 8 4 312 Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions Points Validation Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1 7 18 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1 3 14 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2 7 14 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3 10 12 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 3 5 12 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 4 15 7 NSEC 2018 (isra17)

Web Warning (37)

Challenges descriptions Points Validation Author
Big Brother is watching 1 2390 Mr.Un1k0d3r
Looking for password file 1 2464 Mr.Un1k0d3r
Area 51 1 1663 Mr.Un1k0d3r
Headache 1 2301 Mr.Un1k0d3r
Words mean something? 1 1788 Mr.Un1k0d3r
Admin Portal 2 790 Mr.Un1k0d3r
XSS Challenge 1 2 209 Mr.Un1k0d3r
Captcha I 2 390 SynneR
Unreadable captcha 2 220 SynneR
XSS Challenge 2 2 227 Mr.Un1k0d3r
Password reset 2 677 Mr.Un1k0d3r
PHP Fairy 2 383 nic-Lovin
Malicious upload 2 366 Mr.Un1k0d3r
Security thru obscurity! 2 667 Mr.Un1k0d3r
REST in peace 3 160 GoSec CTF 2014
PHP feature or 0day? 3 221 Mr.Un1k0d3r
Password reset reloaded 3 272 Mr.Un1k0d3r
Serial killer! 3 320 Mr.Un1k0d3r
XSS Challenge 3 3 111 Mr.Un1k0d3r
XSS Challenge 4 3 129 Mr.Un1k0d3r
Facebook will never forget this one 3 148 Mr.Un1k0d3r
Looking for the flag? 3 481 Mr.Un1k0d3r
Captcha III 4 15 Mbergeron
Captcha II 4 97 SynneR
Propaganda mail 4 145 NSEC 2015
Read the unreadable 5 55 Mr.Un1k0d3r
Freedom Firewall 5 84 NSEC 2015
Timesheet As a Service 5 22 Mr.Un1k0d3r
Password Reset As a Service 5 28 Mr.Un1k0d3r
PHP feature or 0day reloaded? 6 54 Mr.Un1k0d3r
I hate this one 6 158 Mr.Un1k0d3r
Orao's factory 6 84 NSEC 2015
Serial killer part 2 6 30 HoLyVieR
XSS Challenge 5 6 86 Mr.Un1k0d3r
XPATH of hell! 7 100 Francois L. Feat Mr.Un1k0d3r
Looking for god in your life? 8 48 NSEC 2015
Secure Mail 8 57 GoSec CTF 2014

Flag statistics (109125 submitted so far)

Number of points Number of validation Number of points Number of validation
18 points 4 15 points 7
14 points 39 13 points 40
12 points 107 11 points 29
10 points 224 9 points 97
8 points 697 7 points 1421
6 points 3249 5 points 3019
4 points 6609 3 points 13091
2 points 36014 1 points 44478

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

2018-09-19 00:09:40 - Towel
@wiz3kid nc8 is back up, and x64 pwn track was already up.
2018-09-18 05:11:33 - madness
nc8 back up
2018-09-17 21:41:59 - wiz3kid
all pwnage linux ports are down :(
2018-09-17 21:37:19 - wiz3kid
Nc8 is down :(
2018-09-16 18:28:56 - oridamari
Nc8 reverse engineering server closes the connection right after establishment .. (port 10283)
2018-09-15 23:23:10 - madi
hello
2018-09-12 04:40:16 - In3tinct
fuck! i didn't read the page. Got it.
2018-09-12 04:38:57 - In3tinct
ssh challenges.ringzer0team.com -p 10218 , i tried with my username but it doesn't work.
2018-09-12 04:38:41 - In3tinct
how do i ssh into the challenges.
2018-09-12 02:41:37 - madness
looks like NC8 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.

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