Challenges

347 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 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

Coding Challenges (17)

Challenges descriptions	Points	Validation	Author
Hash me please	2	2825	Mr.Un1k0d3r
Ask your grandpa!	2	1052	Mr.Un1k0d3r's Dad
Hash me reloaded	3	1576	Mr.Un1k0d3r
I hate mathematics	3	1670	Mr.Un1k0d3r
Ask your grandpa again!	4	352	Mr.Un1k0d3r's Dad
Hash breaker	4	1285	Mr.Un1k0d3r
I saw a little elf	4	469	Mr.Un1k0d3r
Hash breaker reloaded	5	751	Mr.Un1k0d3r
Execute me if you can	5	373	Mr.Un1k0d3r
Read me if you can	6	395	Mr.Un1k0d3r
Hash breaker reloaded again	6	254	Mr.Un1k0d3r
Ascii Art	6	595	Mr.Un1k0d3r
Execute me if you can again	6	187	Mr.Un1k0d3r
Xor me if you can	6	377	Mr.Un1k0d3r
Number game	7	300	Mr.Un1k0d3r remade by theindian
Classic Sudoku	7	253	Mr.Un1k0d3r remade by dread_knight
Find the right word	7	309	Mr.Un1k0d3r

Cryptography (36)

Challenges descriptions	Points	Validation	Author
Some martian message	1	5939	Mr.Un1k0d3r
You're Drunk!	1	1551	Mr.Un1k0d3r
File recovery	1	2822	Mr.Un1k0d3r
Fashion Victim	2	453	GoSec CTF 2014
Public key recovery	2	1397	Mr.Un1k0d3r
Martian message part 2	2	2547	Mr.Un1k0d3r
Let's Play Scrabble!	3	41	Madness
Can you understand this sentence?	3	625	Mr.Un1k0d3r
Hangovers and more: Bacon	3	485	SynneR
Martian message part 3	3	965	Mr.Un1k0d3r
I Lost my password	3	1036	Mr.Un1k0d3r
Crypto over the network	4	118	Mr.Un1k0d3r remade by theindian
Encrypted Zip	4	517	Mr.Un1k0d3r
Crypto Object	4	173	GoSec CTF 2014
Crypto Leak	4	42	NSEC 2018 (Towel)
SSO Service	4	11	Mr.Un1k0d3r (Trustwave CTF 2020)
Jabber	5	9	Madness
Free Flag Encrypter	5	16	Towel
Let's Play Scrabble! Part 2	5	23	Madness
Is it a secure string?	5	235	Cedrick Chaput
Guess the number	6	12	cyberguru
TotalSecure Message Encrypter	6	87	Towel
Pattern is the key	6	40	Mr.Un1k0d3r
Welcome to the asylum	6	53	GoSec CTF 2014
Jabber Part 2	7	7	Madness
Malcolm	7	11	Trustwave CTF 2020
Homemade craptography #2	7	9	HoLyVieR ft. large software company
Mars Log	8	8	NSEC 2018 (Towel)
Crypto is not good as you think	8	157	Mr.Un1k0d3r
Homemade Craptography	8	7	NSEC 2018 (HoLyVieR)
Rusty RSA message signing service	9	10	b0n0n & An0n remade by dysleixa
Spies	9	31	CS Games 2016 (HoLyVieR)
Find your path	9	3	cyberguru
Polly Wants a Cracker	10	5	Madness
TotalSecure Message Encrypter V2	10	17	Towel
Unicorn As A Service	11	7	Towel

Exotic Data Storage (4)

Challenges descriptions	Points	Validation	Author
Just another login form	2	1411	Mr.Un1k0d3r
DON'T login as admin	2	32	mbergeron
I forgot my password	3	31	mbergeron
Inspiration	6	31	NSEC 2019 (becojo)

Forensics (28)

Challenges descriptions	Points	Validation	Author
Who I am part 2	1	535	Mr.Un1k0d3r
I made a dd of Agent Smith usb key	1	2928	Cedrick Chaput
I love cat	2	623	Mr.Un1k0d3r
Dr. Pouce	2	2181	Cedrick Chaput
Attention Dinosaure Survive	2	1195	PRL
The good, the bad and the ugly	2	88	Mr.Un1k0d3r
1 / 3 Do not waste the environment	2	936	PRL
Hide my ass in my home!	2	1405	Cedrick Chaput
Hey Chuck where is the flag?	2	1377	Mr.Un1k0d3r
Meat Loaf	2	245	Ekse
Who I am?	2	897	Mr.Un1k0d3r
The words flew but writing remains	3	154	Martin Dube
2 / 3 Did you see my desktop?	3	766	PRL
Are you Twisted Insane?	3	26	Cedrick Feat Mr.Un1k0d3r
Someone steal my flag!	3	373	Mr.Un1k0d3r
802.1X Part 1	4	59	NSEC 2015
3 / 3 Suspicious account password?	4	623	PRL
Poor internet connection	4	373	Cedrick Chaput
Agent Smith reloaded	4	246	Cedrick Chaput
R.I.P MsPaint	4	95	Misker
We got breached	5	199	Mr.Un1k0d3r
Someone steal my flag again	5	128	GoSec CTF 2014
Ping pong	5	82	SynneR
Spy my girl	5	199	Cedrick Chaput
We got breached again	6	145	Mr.Un1k0d3r
Russian Crypto Roulette	6	66	SynneR
Really Depressed Protocol	7	70	SynneR
802.1X Part 2	8	43	NSEC 2015

Jail Escaping (21)

Challenges descriptions	Points	Validation	Author
Bash Jail 1	1	2092	Mr.Un1k0d3r
Bash Jail 2	2	1341	Mr.Un1k0d3r
Bash Jail 3	3	752	Mr.Un1k0d3r
Bash Jail 4	4	406	Mr.Un1k0d3r
Bash Jail 5	6	174	Mr.Un1k0d3r
Bash Jail 6	8	22	Garigouster
Bash Jail 7	12	15	Garigouster
C Jail 1	1	338	Mr.Un1k0d3r
C Jail 2	2	220	Mr.Un1k0d3r
C Jail 3	3	181	Mr.Un1k0d3r
C Jail 4	5	18	Garigouster
C Jail 5	7	11	Garigouster
C Jail 6	14	6	Garigouster
PHP Jail 1	1	526	Mr.Un1k0d3r
PHP Jail 2	2	346	Mr.Un1k0d3r
PHP Jail 3	3	240	Mr.Un1k0d3r
PHP Jail 4	4	187	Mr.Un1k0d3r
PHP Jail 5	6	154	Mr.Un1k0d3r
PyJail 1	3	219	Martin Dube
PyJail 2	5	120	Martin Dube
PyJail 3	6	44	Martin Dube

JavaScript (10)

Challenges descriptions	Points	Validation	Author
Client side validation is bad!	1	6546	Mr.Un1k0d3r
Hashing is more secure	1	5691	Mr.Un1k0d3r
Then obfuscation is more secure	1	4328	Mr.Un1k0d3r
Most Secure Crypto Algo	2	1543	Mr.Un1k0d3r
Valid key required	2	858	Francois Lajeunesse
Why not?	2	3345	Mr.Un1k0d3r
Why not be more secure?	5	532	Mr.Un1k0d3r
WTF Lol!	6	252	HoLyVieR
Interstellar PhoneBook	6	38	NSEC 2018 (HoLyVieR)
Beauty and the beast	7	38	Mr.Un1k0d3r

Malware Analysis (21)

Challenges descriptions	Points	Validation	Author
APT 1337	4	44	NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1	1	598	Mr.Un1k0d3r
Capture 1 Part 2	1	198	Mr.Un1k0d3r
Capture 1 Part 3	1	223	Mr.Un1k0d3r
Capture 1 Part 4	2	28	Mr.Un1k0d3r
Capture 1 Part 5	3	51	Mr.Un1k0d3r
Capture 1 Part 6	3	138	Mr.Un1k0d3r
Capture 1 Part 7	3	26	Mr.Un1k0d3r
Capture 2 Part 1	1	55	Mr.Un1k0d3r
Capture 2 Part 2	1	102	Mr.Un1k0d3r
Capture 2 Part 3	1	102	Mr.Un1k0d3r
Capture 2 Part 4	3	101	Mr.Un1k0d3r
Capture 2 Part 5	4	36	Mr.Un1k0d3r
Capture 2 Part 6	7	14	Mr.Un1k0d3r
Just Another MBR Ransomware	8	18	Towel
RAO democracy	4	50	NSEC 2017 (Mr.Un1k0d3r)
This malware excels Part 1	2	14	HF 2020 (nic-lovin)
This malware excels Part 2	1	13	HF 2020 (nic-lovin)
This malware excels Part 3	2	10	HF 2020 (nic-lovin)
This malware excels Part 4	5	5	HF 2020 (nic-lovin)
WebShell of Hell	5	16	An0n

Pwnage Linux (21)

Challenges descriptions	Points	Validation	Author
Level1 Pwnage Linux Level Up	1	627	P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up	2	390	P-Y Feat Martin Dube
Remote Auth	2	96	NSEC 2015
Level3 Pwnage Linux Level Up	3	282	P-Y Feat Martin Dube
The Vault	3	40	Mr.Un1k0d3r
Level1 Pwnage Linux x86_64	3	192	Mr.Un1k0d3r
Level2 Pwnage Linux x86_64	4	64	Mr.Un1k0d3r
Sometime there is no buffer overflow	4	70	Mr.Un1k0d3r
Can you get the service password	4	111	Mr.Un1k0d3r
Friendly race	5	21	Garigouster
Level4 Pwnage Linux Level Up	5	133	Mr.Un1k0d3r
RPCFTW!	6	34	NSEC 2015
Jack the heaper	6	18	uaf.io
Level4 Pwnage Linux x86_64	7	36	Mr.Un1k0d3r
Level3 Pwnage Linux x86_64	7	62	Mr.Un1k0d3r
Base64 As A Service	8	26	Guilt
Take over the Virtual World	8	35	NSEC 2015
Just another useless service	8	34	NSEC 2015
All You Need Is a Client	8	6	Mr.Un1k0d3r (Trustwave CTF 2020)
Base64 As A Service Reloaded	9	21	Guilt
Delivery As A Service	10	14	NSEC 2016

Reverse Engineering (56)

Challenges descriptions	Points	Validation	Author
Can you see through the star	2	1192	Mr.Un1k0d3r
See No Evil - Part 1	2	101	alxbl
Gift as a Service Part 2	2	15	H0H0H0 Day (R0 team)
Time to learn x86 ASM & gdb	2	1998	Mr.Un1k0d3r
See No Evil - Part 2	3	80	alxbl
See No Evil - Part 3	3	78	alxbl
Intro To Sparc	3	164	Ian-Kyle Wagner
Kernel introduction	3	247	Mr.Un1k0d3r
Heap allocator	3	267	NSEC 2015
Windows x86 reversing is cool	3	684	Mr.Un1k0d3r
Crack Me 1	3	748	Mr.Un1k0d3r
Introduction to MIPS	3	309	Mr.Un1k0d3r
I never forget the Nintendo 64	3	612	Mr.Un1k0d3r
Power to the people	4	58	NSEC 2015
Old School	4	63	Towel
Let's take a detour	4	80	Floesen
Altera?	4	59	NSEC 2016
Wrong byte!	4	262	Mr.Un1k0d3r
Windows API for the win	4	319	Mr.Un1k0d3r
Introduction to ARM	4	344	Mr.Un1k0d3r
Space Invaders	4	8	Trustwave CTF 2020
I love tea!	4	18	nic-lovin
See No Evil - Part 5	4	52	alxbl
See No Evil - Part 4	4	59	alxbl
ASM Lovers	4	86	NSEC 2016
The MI7 password prompt	5	53	NSEC 2018 (Mr.Un1k0d3r)
Reindeer Game	5	3	H0H0H0 Day 2020 (Towel)
Phenix Golgoth	5	46	Hackfest 2016
Can I speak with the kernel?	5	68	Zerosum0x0
WASM Part 1	5	54	NSEC 2018 (Isra17)
Back to our roots	5	102	Mr.Un1k0d3r
Virtual World	5	71	NSEC 2015
RingZer0 Authenticator	5	228	Ekse
Smart enough?	5	109	NSEC 2015
Pwndr3 Authenticator	5	52	Pwndr3
Flag stealer	6	68	Ekse
Need a client	6	71	Mr.Un1k0d3r
Update Manager	6	55	Ekse
I Think I forgot to take out the garbage!	6	18	Mr.Un1k0d3r
SOS Lib	7	22	Mr.Un1k0d3r
Armed and ready	7	13	NSEC 2015
The supreme bash	7	22	NSEC 2017 (Mr.Un1k0d3r)
Cappin'	7	2	Mr.Un1k0d3r (Trustwave CTF 2020)
Buggy Bunny	7	10	Garigouster
Rebate As A Service	8	40	NSEC 2016
You're not welcome	8	53	Towel
WASM Part 2	8	8	NSEC 2018 (Isra17)
License to kill	8	3	Mr.Un1k0d3r
The Matrix	9	11	Towel
Trolling the troll	10	31	Mr.Un1k0d3r
Keygen time again	10	30	GoSec CTF 2014
The unknown challenge	11	16	Mr.Un1k0d3r
You're not welcome again!	12	20	Towel
WASM Part 3	12	6	NSEC 2018 (Isra17)
The oracle	13	17	Towel
Mars Reloaded	18	9	NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions	Points	Validation	Author
Basics of Linux x64 shellcoding	2	501	Mr.Un1k0d3r
Linux x64 shellcoding level 2	4	255	Mr.Un1k0d3r
Linux x64 shellcoding level 3	6	201	Mr.Un1k0d3r
Linux x64 shellcoding level 4	8	160	Mr.Un1k0d3r
Linux x64 shellcoding level 5	10	112	Mr.Un1k0d3r
Linux x64 shellcoding level 6	12	96	Mr.Un1k0d3r
Linux x64 shellcoding level 7	14	54	Mr.Un1k0d3r

Software Defined Radio (5)

Challenges descriptions	Points	Validation	Author
SigID Level 1	1	921	Guenael
You Turn Me On And Off	3	3	Trustwave CTF 2020
Let's Get Scwhifty!	5	2	Trustwave CTF 2020
SigID Level 2	6	11	Guenael
Don't flip out, Thomas!	7	2	Trustwave CTF 2020

SQL Injection (32)

Challenges descriptions	Points	Validation	Author
Most basic SQLi pattern.	1	8286	Mr.Un1k0d3r
Random Login Form	2	1662	Mr.Un1k0d3r
Po po po po postgresql	2	1776	Mr.Un1k0d3r
Login portal 1	2	3052	Mr.Un1k0d3r
ACL rulezzz the world.	2	4101	Mart
Login portal 2	3	608	Mr.Un1k0d3r
Don't mess with Noemie; she hates admin!	3	799	Mr.Un1k0d3r
0 Day Store	3	125	NSEC 2015
What's the definition of NULL	3	677	Mr.Un1k0d3r
Don't Stumble in the Process	4	47	mbergeron
Brain Teaser 1	4	24	Sideni
Quote of the day	4	604	Mr.Un1k0d3r
No more hacking for me!	4	298	Mr.Un1k0d3r
Thinking outside the box is the key	4	506	Mr.Un1k0d3r
Quote of the day reloaded	5	233	Mr.Un1k0d3r
When it's lite it's not necessarily easy	6	211	Mr.Un1k0d3r
Login portal 3	6	239	Mr.Un1k0d3r
Hot Single Mom	6	160	GoSec CTF 2014
Internet As A Service	7	112	Mr.Un1k0d3r
Size DOES matter	7	133	Mr.Un1k0d3r
Brain Teaser 2	7	13	Sideni
/etc/passwd	7	140	Mr.Un1k0d3r
Groups of hacker	7	155	Mr.Un1k0d3r
Login portal 4	7	145	Mr.Un1k0d3r
Login portal 5	8	69	Mr.Un1k0d3r
The useless search tool	8	118	Mr.Un1k0d3r
stackoverflow.com lied to me... again	9	77	Corb3nik
Doctor Who ?	9	8	Sideni
Login portal 6	10	57	Mr.Un1k0d3r
SQHell	11	14	Sideni feat. mbergeron
Don't Stumble in the Process Reloaded	12	8	mbergeron
!Mysql + Brain fart	13	30	Mr.Un1k0d3r

Steganography (24)

Challenges descriptions	Points	Validation	Author
You're lost? Use the map	1	1540	Mr.Un1k0d3r
Victor you're hidding me something	1	2245	Cedrick Chaput
The vestige of dial-up Internet	2	105	Uid0
Pixel Everywhere	2	115	Mr.Un1k0d3r
Hidden In Plain Sight	2	603	NSEC 2015
Missing Pieces	2	702	Cedrick Chaput
Brainsick	2	785	Mr.Un1k0d3r
I'm Goronyo Babad Nigerian prince	2	504	Mr.Un1k0d3r
The Sloth	2	102	Misker
Victor reloaded	2	912	Cedrick Chaput
A ghost sound	2	749	Cedrick Chaput
Look inside the house	2	834	Mr.Un1k0d3r
Crazy Cat Lady	3	66	Madness
Can you see through the matrix!	3	134	Mr.Un1k0d3r
Love Letter	3	179	Towel
5 beautiful colors	3	41	PublicName
Your old friend Orloge Simard	3	544	Cedrick Chaput
Even the Odds	4	15	alxbl
Not just 64	4	13	Madness
Stay Classy!	4	17	Sideni
Can you see through the matrix reloaded!	4	27	Towel
Walk the line!	5	138	Cedrick Chaput
Stop the violence	5	16	jusb3
Stop the violence 2	5	6	jusb3

SysAdmin Linux (8)

Challenges descriptions	Points	Validation	Author
SysAdmin Part 1	1	2303	Cedrick Chaput
SysAdmin Part 2	1	1670	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3	1	1044	Mr.Un1k0d3r
SysAdmin Part 4	2	988	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5	2	623	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6	3	590	Cedrick Chaput
SysAdmin Part 7	4	483	Cedrick Chaput
SysAdmin Part 8	4	540	Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions	Points	Validation	Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1	7	51	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1	3	31	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2	7	29	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3	10	28	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 3	5	19	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 4	15	15	NSEC 2018 (isra17)

Web Warning (51)

Challenges descriptions	Points	Validation	Author
Looking for password file	1	3899	Mr.Un1k0d3r
Big Brother is watching	1	3740	Mr.Un1k0d3r
Area 51	1	2558	Mr.Un1k0d3r
Headache	1	3342	Mr.Un1k0d3r
Words mean something?	1	2660	Mr.Un1k0d3r
Hacking skill are optional	1	159	Breached Company
Unreadable captcha	2	359	SynneR
Captcha I	2	513	SynneR
Password reset	2	880	Mr.Un1k0d3r
Admin Portal	2	1098	Mr.Un1k0d3r
PHP Fairy	2	776	nic-Lovin
XSS Challenge 1	2	394	Mr.Un1k0d3r
XSS Challenge 2	2	388	Mr.Un1k0d3r
Security thru obscurity!	2	921	Mr.Un1k0d3r
Malicious upload	2	541	Mr.Un1k0d3r
Gift as a Service Part 1	3	17	H0H0H0 Day (R0 team)
PHP feature or 0day?	3	387	Mr.Un1k0d3r
UploadStar	3	24	nopernik
Beyond Reality Part 1	3	29	NSEC 2019 (ldionmarcil)
NeuroSoft: Observation Unit Center	3	36	NSEC 2019 (ldionmarcil)
Captcha IV	3	25	FadedForEver
JWT pitfall 1	3	51	Mr.Un1k0d3r
REST in peace	3	200	GoSec CTF 2014
XSS Challenge 3	3	179	Mr.Un1k0d3r
XSS Challenge 4	3	194	Mr.Un1k0d3r
Facebook will never forget this one	3	205	Mr.Un1k0d3r
Password reset reloaded	3	334	Mr.Un1k0d3r
Looking for the flag?	3	673	Mr.Un1k0d3r
Serial killer!	3	427	Mr.Un1k0d3r
Propaganda mail	4	222	NSEC 2015
Captcha II	4	135	SynneR
Captcha III	4	44	mbergeron
Beyond Reality Part 2	5	19	NSEC 2019 (ldionmarcil)
Lost API	5	25	NSEC 2019 (HoLyVieR)
The archive	5	20	NSEC 2019 (HoLyVieR)
UploadStar Reloaded	5	17	nopernik
Super Lottery	5	68	davidlebr1
Password Reset As a Service	5	55	Mr.Un1k0d3r
Timesheet As a Service	5	22	Mr.Un1k0d3r
Freedom Firewall	5	108	NSEC 2015
Read the unreadable	5	103	Mr.Un1k0d3r
XSS Challenge 5	6	119	Mr.Un1k0d3r
PHP feature or 0day reloaded?	6	70	Mr.Un1k0d3r
Serial killer part 2	6	41	HoLyVieR
Orao's factory	6	106	NSEC 2015
I hate this one	6	209	Mr.Un1k0d3r
XPATH of hell!	7	127	Francois L. Feat Mr.Un1k0d3r
Ping It!	7	22	mnadeau
Super Lottery Reloaded	7	20	davidlebr1 Feat mbergeron
Looking for god in your life?	8	62	NSEC 2015
Secure Mail	8	73	GoSec CTF 2014

Flag statistics (166312 submitted so far)

Number of points	Number of validation	Number of points	Number of validation
18 points	9	15 points	15
14 points	60	13 points	47
12 points	145	11 points	37
10 points	294	9 points	161
8 points	942	7 points	2138
6 points	4535	5 points	4497
4 points	9969	3 points	19737
2 points	54145	1 points	69581

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.