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358 challenges are currently available for a total of 1647 points.


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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 Up
Hot Single Mom sandbox is Up Bash Jail 1 sandbox is Up
Sometime there is no buffer overflow sandbox is Up Delivery As A Service sandbox is Up
Can you get the service password sandbox is Up Just another useless service sandbox is Up

Challenges


Coding Challenges (17)

Challenges descriptions Points Validation Author
Hash me please 2 3184 Mr.Un1k0d3r
Ask your grandpa! 2 1165 Mr.Un1k0d3r's Dad
Hash me reloaded 3 1743 Mr.Un1k0d3r
I hate mathematics 3 1851 Mr.Un1k0d3r
Ask your grandpa again! 4 395 Mr.Un1k0d3r's Dad
Hash breaker 4 1426 Mr.Un1k0d3r
I saw a little elf 4 518 Mr.Un1k0d3r
Hash breaker reloaded 5 822 Mr.Un1k0d3r
Execute me if you can 5 397 Mr.Un1k0d3r
Read me if you can 6 439 Mr.Un1k0d3r
Ascii Art 6 654 Mr.Un1k0d3r
Execute me if you can again 6 200 Mr.Un1k0d3r
Hash breaker reloaded again 6 273 Mr.Un1k0d3r
Xor me if you can 6 411 Mr.Un1k0d3r
Find the right word 7 343 Mr.Un1k0d3r
Number game 7 329 Mr.Un1k0d3r remade by theindian
Classic Sudoku 7 280 Mr.Un1k0d3r remade by dread_knight

Cryptography (36)

Challenges descriptions Points Validation Author
Some martian message 1 6826 Mr.Un1k0d3r
You're Drunk! 1 2079 Mr.Un1k0d3r
File recovery 1 3164 Mr.Un1k0d3r
Fashion Victim 2 542 GoSec CTF 2014
Martian message part 2 2 2846 Mr.Un1k0d3r
Public key recovery 2 1533 Mr.Un1k0d3r
I Lost my password 3 1128 Mr.Un1k0d3r
Let's Play Scrabble! 3 56 Madness
Hangovers and more: Bacon 3 552 SynneR
Martian message part 3 3 1110 Mr.Un1k0d3r
Can you understand this sentence? 3 696 Mr.Un1k0d3r
Encrypted Zip 4 567 Mr.Un1k0d3r
Crypto over the network 4 135 Mr.Un1k0d3r remade by theindian
Crypto Object 4 191 GoSec CTF 2014
Crypto Leak 4 50 NSEC 2018 (Towel)
SSO Service 4 19 Mr.Un1k0d3r (Trustwave CTF 2020)
Is it a secure string? 5 261 Cedrick Chaput
Let's Play Scrabble! Part 2 5 28 Madness
Jabber 5 9 Madness
Free Flag Encrypter 5 18 Towel
Guess the number 6 25 cyberguru
TotalSecure Message Encrypter 6 93 Towel
Welcome to the asylum 6 58 GoSec CTF 2014
Pattern is the key 6 46 Mr.Un1k0d3r
Malcolm 7 21 Trustwave CTF 2020
Jabber Part 2 7 8 Madness
Homemade craptography #2 7 12 HoLyVieR ft. large software company
Homemade Craptography 8 10 NSEC 2018 (HoLyVieR)
Mars Log 8 10 NSEC 2018 (Towel)
Crypto is not good as you think 8 170 Mr.Un1k0d3r
Find your path 9 11 cyberguru
Rusty RSA message signing service 9 15 b0n0n & An0n remade by dysleixa
Spies 9 33 CS Games 2016 (HoLyVieR)
Polly Wants a Cracker 10 7 Madness
TotalSecure Message Encrypter V2 10 18 Towel
Unicorn As A Service 11 9 Towel

Exotic Data Storage (4)

Challenges descriptions Points Validation Author
Just another login form 2 1485 Mr.Un1k0d3r
DON'T login as admin 2 37 mbergeron
I forgot my password 3 33 mbergeron
Inspiration 6 35 NSEC 2019 (becojo)

Forensics (28)

Challenges descriptions Points Validation Author
I made a dd of Agent Smith usb key 1 3278 Cedrick Chaput
Who I am part 2 1 722 Mr.Un1k0d3r
Meat Loaf 2 317 Ekse
Who I am? 2 1027 Mr.Un1k0d3r
Dr. Pouce 2 2349 Cedrick Chaput
Attention Dinosaure Survive 2 1354 PRL
The good, the bad and the ugly 2 142 Mr.Un1k0d3r
1 / 3 Do not waste the environment 2 999 PRL
Hide my ass in my home! 2 1551 Cedrick Chaput
Hey Chuck where is the flag? 2 1535 Mr.Un1k0d3r
I love cat 2 766 Mr.Un1k0d3r
The words flew but writing remains 3 167 Martin Dube
2 / 3 Did you see my desktop? 3 816 PRL
Are you Twisted Insane? 3 29 Cedrick Feat Mr.Un1k0d3r
Someone steal my flag! 3 413 Mr.Un1k0d3r
802.1X Part 1 4 67 NSEC 2015
R.I.P MsPaint 4 106 Misker
3 / 3 Suspicious account password? 4 667 PRL
Poor internet connection 4 391 Cedrick Chaput
Agent Smith reloaded 4 260 Cedrick Chaput
Someone steal my flag again 5 143 GoSec CTF 2014
We got breached 5 215 Mr.Un1k0d3r
Ping pong 5 91 SynneR
Spy my girl 5 213 Cedrick Chaput
Russian Crypto Roulette 6 73 SynneR
We got breached again 6 155 Mr.Un1k0d3r
Really Depressed Protocol 7 80 SynneR
802.1X Part 2 8 46 NSEC 2015

Jail Escaping (21)

Challenges descriptions Points Validation Author
Bash Jail 1 1 2364 Mr.Un1k0d3r
Bash Jail 2 2 1498 Mr.Un1k0d3r
Bash Jail 3 3 856 Mr.Un1k0d3r
Bash Jail 4 4 457 Mr.Un1k0d3r
Bash Jail 5 6 200 Mr.Un1k0d3r
Bash Jail 6 8 32 Garigouster
Bash Jail 7 12 17 Garigouster
C Jail 1 1 378 Mr.Un1k0d3r
C Jail 2 2 245 Mr.Un1k0d3r
C Jail 3 3 203 Mr.Un1k0d3r
C Jail 4 5 21 Garigouster
C Jail 5 7 14 Garigouster
C Jail 6 14 10 Garigouster
PHP Jail 1 1 567 Mr.Un1k0d3r
PHP Jail 2 2 377 Mr.Un1k0d3r
PHP Jail 3 3 265 Mr.Un1k0d3r
PHP Jail 4 4 207 Mr.Un1k0d3r
PHP Jail 5 6 173 Mr.Un1k0d3r
PyJail 1 3 245 Martin Dube
PyJail 2 5 133 Martin Dube
PyJail 3 6 46 Martin Dube

JavaScript (10)

Challenges descriptions Points Validation Author
Client side validation is bad! 1 7044 Mr.Un1k0d3r
Hashing is more secure 1 6110 Mr.Un1k0d3r
Then obfuscation is more secure 1 4663 Mr.Un1k0d3r
Why not? 2 3560 Mr.Un1k0d3r
Valid key required 2 930 Francois Lajeunesse
Most Secure Crypto Algo 2 1690 Mr.Un1k0d3r
Why not be more secure? 5 576 Mr.Un1k0d3r
WTF Lol! 6 272 HoLyVieR
Interstellar PhoneBook 6 40 NSEC 2018 (HoLyVieR)
Beauty and the beast 7 40 Mr.Un1k0d3r

Malware Analysis (22)

Challenges descriptions Points Validation Author
APT 1337 4 49 NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1 1 665 Mr.Un1k0d3r
Capture 1 Part 2 1 221 Mr.Un1k0d3r
Capture 1 Part 3 1 244 Mr.Un1k0d3r
Capture 1 Part 4 2 39 Mr.Un1k0d3r
Capture 1 Part 5 3 60 Mr.Un1k0d3r
Capture 1 Part 6 3 154 Mr.Un1k0d3r
Capture 1 Part 7 3 33 Mr.Un1k0d3r
Capture 2 Part 1 1 64 Mr.Un1k0d3r
Capture 2 Part 2 1 115 Mr.Un1k0d3r
Capture 2 Part 3 1 116 Mr.Un1k0d3r
Capture 2 Part 4 3 113 Mr.Un1k0d3r
Capture 2 Part 5 4 43 Mr.Un1k0d3r
Capture 2 Part 6 7 19 Mr.Un1k0d3r
Evil X 8 6 cyberguru
Just Another MBR Ransomware 8 20 Towel
RAO democracy 4 57 NSEC 2017 (Mr.Un1k0d3r)
This malware excels Part 1 2 35 HF 2020 (nic-lovin)
This malware excels Part 2 1 33 HF 2020 (nic-lovin)
This malware excels Part 3 2 24 HF 2020 (nic-lovin)
This malware excels Part 4 5 17 HF 2020 (nic-lovin)
WebShell of Hell 5 19 An0n

NSEC 2021 (8)

Challenges descriptions Points Validation Author
Crapto Century 3 24 NSEC 2021 (davidlebr1)
Farmer Search (1/3) 3 24 NSEC 2021 (mbergeron)
Farmer Search (2/3) 2 20 NSEC 2021 (mbergeron)
Farmer Search (3/3) 4 14 NSEC 2021 (mbergeron)
Knight Portal (1/3) 2 61 NSEC 2021 (mbergeron)
Knight Portal (2/3) 2 50 NSEC 2021 (mbergeron)
Knight Portal (3/3) 5 19 NSEC 2021 (mbergeron)
Reading Through the Cloud 4 23 NSEC 2021 (davidlebr1)

Pwnage Linux (21)

Challenges descriptions Points Validation Author
Level1 Pwnage Linux Level Up 1 691 P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up 2 424 P-Y Feat Martin Dube
Remote Auth 2 110 NSEC 2015
Level3 Pwnage Linux Level Up 3 302 P-Y Feat Martin Dube
The Vault 3 57 Mr.Un1k0d3r
Level1 Pwnage Linux x86_64 3 205 Mr.Un1k0d3r
Can you get the service password 4 122 Mr.Un1k0d3r remade by sagefault
Sometime there is no buffer overflow 4 77 Mr.Un1k0d3r remade by GuilT
Level2 Pwnage Linux x86_64 4 72 Mr.Un1k0d3r
Friendly race 5 28 Garigouster
Level4 Pwnage Linux Level Up 5 143 Mr.Un1k0d3r
RPCFTW! 6 38 NSEC 2015
Jack the heaper 6 24 uaf.io
Level4 Pwnage Linux x86_64 7 44 Mr.Un1k0d3r
Level3 Pwnage Linux x86_64 7 69 Mr.Un1k0d3r
Just another useless service 8 40 NSEC 2015
Take over the Virtual World 8 37 NSEC 2015
Base64 As A Service 8 35 Guilt
All You Need Is a Client 8 14 Mr.Un1k0d3r (Trustwave CTF 2020)
Base64 As A Service Reloaded 9 29 Guilt
Delivery As A Service 10 19 NSEC 2016

Reverse Engineering (56)

Challenges descriptions Points Validation Author
Time to learn x86 ASM & gdb 2 2139 Mr.Un1k0d3r
See No Evil - Part 1 2 161 alxbl
Can you see through the star 2 1303 Mr.Un1k0d3r
Gift as a Service Part 2 2 47 H0H0H0 Day (R0 team)
See No Evil - Part 2 3 120 alxbl
See No Evil - Part 3 3 114 alxbl
Intro To Sparc 3 191 Ian-Kyle Wagner
Kernel introduction 3 269 Mr.Un1k0d3r
Heap allocator 3 288 NSEC 2015
Crack Me 1 3 788 Mr.Un1k0d3r
Introduction to MIPS 3 332 Mr.Un1k0d3r
I never forget the Nintendo 64 3 662 Mr.Un1k0d3r
Windows x86 reversing is cool 3 734 Mr.Un1k0d3r
Old School 4 87 Towel
Power to the people 4 75 NSEC 2015
Let's take a detour 4 102 Floesen
Altera? 4 76 NSEC 2016
ASM Lovers 4 97 NSEC 2016
Wrong byte! 4 284 Mr.Un1k0d3r
See No Evil - Part 4 4 87 alxbl
See No Evil - Part 5 4 81 alxbl
I love tea! 4 36 nic-lovin
Space Invaders 4 26 Trustwave CTF 2020
Introduction to ARM 4 365 Mr.Un1k0d3r
Windows API for the win 4 349 Mr.Un1k0d3r
WASM Part 1 5 75 NSEC 2018 (Isra17)
The MI7 password prompt 5 74 NSEC 2018 (Mr.Un1k0d3r)
Phenix Golgoth 5 60 Hackfest 2016
Can I speak with the kernel? 5 91 Zerosum0x0
Reindeer Game 5 14 H0H0H0 Day 2020 (Towel)
Back to our roots 5 124 Mr.Un1k0d3r
Virtual World 5 85 NSEC 2015
Smart enough? 5 126 NSEC 2015
Pwndr3 Authenticator 5 68 Pwndr3
RingZer0 Authenticator 5 248 Ekse
Need a client 6 77 Mr.Un1k0d3r
I Think I forgot to take out the garbage! 6 29 Mr.Un1k0d3r
Flag stealer 6 83 Ekse
Update Manager 6 67 Ekse
Buggy Bunny 7 15 Garigouster
Cappin' 7 4 Mr.Un1k0d3r (Trustwave CTF 2020)
The supreme bash 7 28 NSEC 2017 (Mr.Un1k0d3r)
Armed and ready 7 25 NSEC 2015
SOS Lib 7 38 Mr.Un1k0d3r
You're not welcome 8 56 Towel
WASM Part 2 8 9 NSEC 2018 (Isra17)
License to kill 8 4 Mr.Un1k0d3r
Rebate As A Service 8 46 NSEC 2016
The Matrix 9 14 Towel
Keygen time again 10 34 GoSec CTF 2014
Trolling the troll 10 33 Mr.Un1k0d3r
The unknown challenge 11 17 Mr.Un1k0d3r
WASM Part 3 12 6 NSEC 2018 (Isra17)
You're not welcome again! 12 20 Towel
The oracle 13 17 Towel
Mars Reloaded 18 12 NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions Points Validation Author
Basics of Linux x64 shellcoding 2 534 Mr.Un1k0d3r
Linux x64 shellcoding level 2 4 269 Mr.Un1k0d3r
Linux x64 shellcoding level 3 6 210 Mr.Un1k0d3r
Linux x64 shellcoding level 4 8 167 Mr.Un1k0d3r
Linux x64 shellcoding level 5 10 118 Mr.Un1k0d3r
Linux x64 shellcoding level 6 12 102 Mr.Un1k0d3r
Linux x64 shellcoding level 7 14 60 Mr.Un1k0d3r

Software Defined Radio (5)

Challenges descriptions Points Validation Author
SigID Level 1 1 1006 Guenael
You Turn Me On And Off 3 17 Trustwave CTF 2020
Let's Get Scwhifty! 5 15 Trustwave CTF 2020
SigID Level 2 6 13 Guenael
Don't flip out, Thomas! 7 15 Trustwave CTF 2020

SQL Injection (32)

Challenges descriptions Points Validation Author
Most basic SQLi pattern. 1 9434 Mr.Un1k0d3r
ACL rulezzz the world. 2 4547 Mart
Login portal 1 2 3507 Mr.Un1k0d3r
Random Login Form 2 2065 Mr.Un1k0d3r
Po po po po postgresql 2 2147 Mr.Un1k0d3r
Login portal 2 3 782 Mr.Un1k0d3r
0 Day Store 3 144 NSEC 2015
Don't mess with Noemie; she hates admin! 3 920 Mr.Un1k0d3r
What's the definition of NULL 3 778 Mr.Un1k0d3r
Quote of the day 4 661 Mr.Un1k0d3r
No more hacking for me! 4 339 Mr.Un1k0d3r
Thinking outside the box is the key 4 549 Mr.Un1k0d3r
Don't Stumble in the Process 4 65 mbergeron
Brain Teaser 1 4 32 Sideni
Quote of the day reloaded 5 259 Mr.Un1k0d3r
When it's lite it's not necessarily easy 6 230 Mr.Un1k0d3r
Login portal 3 6 263 Mr.Un1k0d3r
Hot Single Mom 6 179 GoSec CTF 2014
Brain Teaser 2 7 16 Sideni
Internet As A Service 7 128 Mr.Un1k0d3r
Size DOES matter 7 145 Mr.Un1k0d3r
/etc/passwd 7 159 Mr.Un1k0d3r
Groups of hacker 7 165 Mr.Un1k0d3r
Login portal 4 7 156 Mr.Un1k0d3r
The useless search tool 8 125 Mr.Un1k0d3r
Login portal 5 8 74 Mr.Un1k0d3r
stackoverflow.com lied to me... again 9 84 Corb3nik
Doctor Who ? 9 11 Sideni
Login portal 6 10 62 Mr.Un1k0d3r
SQHell 11 15 Sideni feat. mbergeron
Don't Stumble in the Process Reloaded 12 9 mbergeron
!Mysql + Brain fart 13 32 Mr.Un1k0d3r

Steganography (25)

Challenges descriptions Points Validation Author
Victor you're hidding me something 1 2590 Cedrick Chaput
You're lost? Use the map 1 1806 Mr.Un1k0d3r
Look inside the house 2 1044 Mr.Un1k0d3r
A ghost sound 2 859 Cedrick Chaput
Victor reloaded 2 1068 Cedrick Chaput
The Sloth 2 137 Misker
Brainsick 2 882 Mr.Un1k0d3r
Missing Pieces 2 784 Cedrick Chaput
Hidden In Plain Sight 2 664 NSEC 2015
Pixel Everywhere 2 171 Mr.Un1k0d3r
The vestige of dial-up Internet 2 176 Uid0
I'm Goronyo Babad Nigerian prince 2 565 Mr.Un1k0d3r
5 beautiful colors 3 48 PublicName
Crazy Cat Lady 3 92 Madness
Love Letter 3 227 Towel
Can you see through the matrix! 3 146 Mr.Un1k0d3r
Your old friend Orloge Simard 3 588 Cedrick Chaput
Can you see through the matrix reloaded! 4 28 Towel
Stay Classy! 4 18 Sideni
Not just 64 4 16 Madness
Even the Odds 4 18 alxbl
Walk the line! 5 155 Cedrick Chaput
Stop the violence 5 19 jusb3
Stop the violence 2 5 7 jusb3
Hidden out of sight 5 9 cyberguru

SysAdmin Linux (8)

Challenges descriptions Points Validation Author
SysAdmin Part 1 1 2569 Cedrick Chaput
SysAdmin Part 2 1 1864 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3 1 1192 Mr.Un1k0d3r
SysAdmin Part 4 2 1113 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5 2 722 Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6 3 680 Cedrick Chaput
SysAdmin Part 7 4 550 Cedrick Chaput
SysAdmin Part 8 4 603 Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions Points Validation Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1 7 58 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1 3 35 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2 7 32 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3 10 32 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 3 5 21 NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 4 15 17 NSEC 2018 (isra17)

Web Warning (52)

Challenges descriptions Points Validation Author
Words mean something? 1 3072 Mr.Un1k0d3r
Big Brother is watching 1 4299 Mr.Un1k0d3r
Hacking skill are optional 1 254 Breached Company
Looking for password file 1 4478 Mr.Un1k0d3r
Area 51 1 2874 Mr.Un1k0d3r
Headache 1 3729 Mr.Un1k0d3r
Security thru obscurity! 2 1019 Mr.Un1k0d3r
PHP Fairy 2 949 nic-Lovin
XSS Challenge 2 2 530 Mr.Un1k0d3r
XSS Challenge 1 2 542 Mr.Un1k0d3r
Admin Portal 2 1174 Mr.Un1k0d3r
Password reset 2 978 Mr.Un1k0d3r
Malicious upload 2 596 Mr.Un1k0d3r
Captcha I 2 559 SynneR
Unreadable captcha 2 400 SynneR
Password reset reloaded 3 358 Mr.Un1k0d3r
PHP feature or 0day? 3 452 Mr.Un1k0d3r
Serial killer! 3 458 Mr.Un1k0d3r
JWT pitfall 1 3 64 Mr.Un1k0d3r
REST in peace 3 212 GoSec CTF 2014
Captcha IV 3 36 FadedForEver
NeuroSoft: Observation Unit Center 3 56 NSEC 2019 (ldionmarcil)
Beyond Reality Part 1 3 50 NSEC 2019 (ldionmarcil)
XSS Challenge 3 3 205 Mr.Un1k0d3r
XSS Challenge 4 3 215 Mr.Un1k0d3r
Facebook will never forget this one 3 224 Mr.Un1k0d3r
UploadStar 3 45 nopernik
Gift as a Service Part 1 3 55 H0H0H0 Day (R0 team)
Looking for the flag? 3 731 Mr.Un1k0d3r
Captcha III 4 57 mbergeron
Propaganda mail 4 243 NSEC 2015
Captcha II 4 144 SynneR
Read the unreadable 5 116 Mr.Un1k0d3r
Freedom Firewall 5 126 NSEC 2015
Timesheet As a Service 5 33 Mr.Un1k0d3r
Password Reset As a Service 5 60 Mr.Un1k0d3r
UploadStar Reloaded 5 27 nopernik
Super Lottery 5 83 davidlebr1
Beyond Reality Part 2 5 32 NSEC 2019 (ldionmarcil)
The archive 5 25 NSEC 2019 (HoLyVieR)
Lost API 5 37 NSEC 2019 (HoLyVieR)
PHP feature or 0day reloaded? 6 74 Mr.Un1k0d3r
I hate this one 6 223 Mr.Un1k0d3r
XSS Challenge 5 6 132 Mr.Un1k0d3r
Serial killer part 2 6 48 HoLyVieR
Orao's factory 6 118 NSEC 2015
Ping It! 7 33 mnadeau
Super Lottery Reloaded 7 31 davidlebr1 Feat mbergeron
XPATH of hell! 7 135 Francois L. Feat Mr.Un1k0d3r
Secure Mail 8 82 GoSec CTF 2014
Looking for god in your life? 8 65 NSEC 2015
Lotto 8/33 11 7 fishinspace

Flag statistics (187712 submitted so far)

Number of points Number of validation Number of points Number of validation
18 points 12 15 points 17
14 points 70 13 points 49
12 points 154 11 points 48
10 points 323 9 points 197
8 points 1048 7 points 2442
6 points 5001 5 points 5142
4 points 11170 3 points 22251
2 points 61277 1 points 78511

close Intercepting SSL Traffic on RingZer0ctf.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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