Challenges

328 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	2703	Mr.Un1k0d3r
Ask your grandpa!	2	1014	Mr.Un1k0d3r's Dad
Hash me reloaded	3	1515	Mr.Un1k0d3r
I hate mathematics	3	1613	Mr.Un1k0d3r
Ask your grandpa again!	4	335	Mr.Un1k0d3r's Dad
Hash breaker	4	1231	Mr.Un1k0d3r
I saw a little elf	4	445	Mr.Un1k0d3r
Hash breaker reloaded	5	720	Mr.Un1k0d3r
Execute me if you can	5	365	Mr.Un1k0d3r
Read me if you can	6	382	Mr.Un1k0d3r
Hash breaker reloaded again	6	242	Mr.Un1k0d3r
Ascii Art	6	574	Mr.Un1k0d3r
Execute me if you can again	6	182	Mr.Un1k0d3r
Xor me if you can	6	365	Mr.Un1k0d3r
Number game	7	282	Mr.Un1k0d3r remade by theindian
Classic Sudoku	7	240	Mr.Un1k0d3r remade by dread_knight
Find the right word	7	295	Mr.Un1k0d3r

Cryptography (32)

Challenges descriptions	Points	Validation	Author
Some martian message	1	5688	Mr.Un1k0d3r
You're Drunk!	1	1373	Mr.Un1k0d3r
File recovery	1	2703	Mr.Un1k0d3r
Public key recovery	2	1346	Mr.Un1k0d3r
Fashion Victim	2	431	GoSec CTF 2014
Martian message part 2	2	2445	Mr.Un1k0d3r
Can you understand this sentence?	3	600	Mr.Un1k0d3r
Let's Play Scrabble!	3	35	Madness
I Lost my password	3	1000	Mr.Un1k0d3r
Martian message part 3	3	918	Mr.Un1k0d3r
Hangovers and more: Bacon	3	465	SynneR
Crypto Leak	4	41	NSEC 2018 (Towel)
Crypto Object	4	169	GoSec CTF 2014
Crypto over the network	4	110	Mr.Un1k0d3r remade by theindian
Encrypted Zip	4	496	Mr.Un1k0d3r
Let's Play Scrabble! Part 2	5	20	Madness
Jabber	5	8	Madness
Is it a secure string?	5	229	Cedrick Chaput
Free Flag Encrypter	5	16	Towel
Pattern is the key	6	40	Mr.Un1k0d3r
TotalSecure Message Encrypter	6	86	Towel
Welcome to the asylum	6	52	GoSec CTF 2014
Homemade craptography #2	7	8	HoLyVieR ft. large software company
Jabber Part 2	7	7	Madness
Crypto is not good as you think	8	153	Mr.Un1k0d3r
Mars Log	8	7	NSEC 2018 (Towel)
Homemade Craptography	8	7	NSEC 2018 (HoLyVieR)
Spies	9	30	CS Games 2016 (HoLyVieR)
Rusty RSA message signing service	9	10	b0n0n & An0n remade by dysleixa
TotalSecure Message Encrypter V2	10	17	Towel
Polly Wants a Cracker	10	3	Madness
Unicorn As A Service	11	7	Towel

Exotic Data Storage (4)

Challenges descriptions	Points	Validation	Author
Just another login form	2	1393	Mr.Un1k0d3r
DON'T login as admin	2	26	mbergeron
I forgot my password	3	26	mbergeron
Inspiration	6	30	NSEC 2019 (becojo)

Forensics (28)

Challenges descriptions	Points	Validation	Author
Who I am part 2	1	485	Mr.Un1k0d3r
I made a dd of Agent Smith usb key	1	2840	Cedrick Chaput
I love cat	2	545	Mr.Un1k0d3r
Dr. Pouce	2	2115	Cedrick Chaput
Attention Dinosaure Survive	2	1161	PRL
The good, the bad and the ugly	2	83	Mr.Un1k0d3r
1 / 3 Do not waste the environment	2	904	PRL
Hide my ass in my home!	2	1364	Cedrick Chaput
Hey Chuck where is the flag?	2	1330	Mr.Un1k0d3r
Meat Loaf	2	235	Ekse
Who I am?	2	858	Mr.Un1k0d3r
The words flew but writing remains	3	152	Martin Dube
2 / 3 Did you see my desktop?	3	746	PRL
Are you Twisted Insane?	3	26	Cedrick Feat Mr.Un1k0d3r
Someone steal my flag!	3	352	Mr.Un1k0d3r
802.1X Part 1	4	55	NSEC 2015
3 / 3 Suspicious account password?	4	606	PRL
Poor internet connection	4	362	Cedrick Chaput
Agent Smith reloaded	4	236	Cedrick Chaput
R.I.P MsPaint	4	91	Misker
We got breached	5	187	Mr.Un1k0d3r
Someone steal my flag again	5	120	GoSec CTF 2014
Ping pong	5	80	SynneR
Spy my girl	5	194	Cedrick Chaput
We got breached again	6	140	Mr.Un1k0d3r
Russian Crypto Roulette	6	64	SynneR
Really Depressed Protocol	7	70	SynneR
802.1X Part 2	8	41	NSEC 2015

Jail Escaping (21)

Challenges descriptions	Points	Validation	Author
Bash Jail 1	1	1997	Mr.Un1k0d3r
Bash Jail 2	2	1280	Mr.Un1k0d3r
Bash Jail 3	3	722	Mr.Un1k0d3r
Bash Jail 4	4	391	Mr.Un1k0d3r
Bash Jail 5	6	165	Mr.Un1k0d3r
Bash Jail 6	8	21	Garigouster
Bash Jail 7	12	15	Garigouster
C Jail 1	1	322	Mr.Un1k0d3r
C Jail 2	2	213	Mr.Un1k0d3r
C Jail 3	3	176	Mr.Un1k0d3r
C Jail 4	5	16	Garigouster
C Jail 5	7	10	Garigouster
C Jail 6	14	5	Garigouster
PHP Jail 1	1	510	Mr.Un1k0d3r
PHP Jail 2	2	335	Mr.Un1k0d3r
PHP Jail 3	3	230	Mr.Un1k0d3r
PHP Jail 4	4	176	Mr.Un1k0d3r
PHP Jail 5	6	146	Mr.Un1k0d3r
PyJail 1	3	206	Martin Dube
PyJail 2	5	115	Martin Dube
PyJail 3	6	38	Martin Dube

JavaScript (10)

Challenges descriptions	Points	Validation	Author
Client side validation is bad!	1	6342	Mr.Un1k0d3r
Hashing is more secure	1	5513	Mr.Un1k0d3r
Then obfuscation is more secure	1	4182	Mr.Un1k0d3r
Most Secure Crypto Algo	2	1472	Mr.Un1k0d3r
Valid key required	2	832	Francois Lajeunesse
Why not?	2	3267	Mr.Un1k0d3r
Why not be more secure?	5	514	Mr.Un1k0d3r
WTF Lol!	6	246	HoLyVieR
Interstellar PhoneBook	6	34	NSEC 2018 (HoLyVieR)
Beauty and the beast	7	35	Mr.Un1k0d3r

Malware Analysis (17)

Challenges descriptions	Points	Validation	Author
APT 1337	4	40	NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1	1	568	Mr.Un1k0d3r
Capture 1 Part 2	1	188	Mr.Un1k0d3r
Capture 1 Part 3	1	213	Mr.Un1k0d3r
Capture 1 Part 4	2	26	Mr.Un1k0d3r
Capture 1 Part 5	3	49	Mr.Un1k0d3r
Capture 1 Part 6	3	135	Mr.Un1k0d3r
Capture 1 Part 7	3	25	Mr.Un1k0d3r
Capture 2 Part 1	1	52	Mr.Un1k0d3r
Capture 2 Part 2	1	93	Mr.Un1k0d3r
Capture 2 Part 3	1	93	Mr.Un1k0d3r
Capture 2 Part 4	3	92	Mr.Un1k0d3r
Capture 2 Part 5	4	34	Mr.Un1k0d3r
Capture 2 Part 6	7	14	Mr.Un1k0d3r
Just Another MBR Ransomware	8	17	Towel
RAO democracy	4	48	NSEC 2017 (Mr.Un1k0d3r)
WebShell of Hell	5	14	An0n

Pwnage Linux (20)

Challenges descriptions	Points	Validation	Author
Level1 Pwnage Linux Level Up	1	600	P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up	2	376	P-Y Feat Martin Dube
Remote Auth	2	96	NSEC 2015
The Vault	3	34	Mr.Un1k0d3r
Level1 Pwnage Linux x86_64	3	184	Mr.Un1k0d3r
Level3 Pwnage Linux Level Up	3	272	P-Y Feat Martin Dube
Sometime there is no buffer overflow	4	70	Mr.Un1k0d3r
Can you get the service password	4	110	Mr.Un1k0d3r
Level2 Pwnage Linux x86_64	4	63	Mr.Un1k0d3r
Friendly race	5	21	Garigouster
Level4 Pwnage Linux Level Up	5	128	Mr.Un1k0d3r
Jack the heaper	6	18	uaf.io
RPCFTW!	6	31	NSEC 2015
Level4 Pwnage Linux x86_64	7	36	Mr.Un1k0d3r
Level3 Pwnage Linux x86_64	7	59	Mr.Un1k0d3r
Just another useless service	8	34	NSEC 2015
Take over the Virtual World	8	34	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	1928	Mr.Un1k0d3r
Can you see through the star	2	1146	Mr.Un1k0d3r
See No Evil - Part 1	2	87	alxbl
Crack Me 1	3	731	Mr.Un1k0d3r
Heap allocator	3	255	NSEC 2015
Intro To Sparc	3	158	Ian-Kyle Wagner
Kernel introduction	3	240	Mr.Un1k0d3r
See No Evil - Part 2	3	69	alxbl
See No Evil - Part 3	3	68	alxbl
Introduction to MIPS	3	301	Mr.Un1k0d3r
Windows x86 reversing is cool	3	662	Mr.Un1k0d3r
I never forget the Nintendo 64	3	600	Mr.Un1k0d3r
Power to the people	4	55	NSEC 2015
Altera?	4	55	NSEC 2016
ASM Lovers	4	81	NSEC 2016
See No Evil - Part 5	4	46	alxbl
Old School	4	60	Towel
I love tea!	4	12	nic-lovin
See No Evil - Part 4	4	51	alxbl
Let's take a detour	4	79	Floesen
Windows API for the win	4	306	Mr.Un1k0d3r
Wrong byte!	4	256	Mr.Un1k0d3r
Introduction to ARM	4	338	Mr.Un1k0d3r
Virtual World	5	68	NSEC 2015
Phenix Golgoth	5	45	Hackfest 2016
WASM Part 1	5	53	NSEC 2018 (Isra17)
RingZer0 Authenticator	5	225	Ekse
Back to our roots	5	101	Mr.Un1k0d3r
Can I speak with the kernel?	5	64	Zerosum0x0
The MI7 password prompt	5	52	NSEC 2018 (Mr.Un1k0d3r)
Smart enough?	5	104	NSEC 2015
Pwndr3 Authenticator	5	51	Pwndr3
I Think I forgot to take out the garbage!	6	18	Mr.Un1k0d3r
Need a client	6	71	Mr.Un1k0d3r
Flag stealer	6	68	Ekse
Update Manager	6	54	Ekse
The supreme bash	7	22	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	38	NSEC 2016
You're not welcome	8	52	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	30	Mr.Un1k0d3r
Keygen time again	10	30	GoSec CTF 2014
The unknown challenge	11	16	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	9	NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions	Points	Validation	Author
Basics of Linux x64 shellcoding	2	489	Mr.Un1k0d3r
Linux x64 shellcoding level 2	4	249	Mr.Un1k0d3r
Linux x64 shellcoding level 3	6	196	Mr.Un1k0d3r
Linux x64 shellcoding level 4	8	157	Mr.Un1k0d3r
Linux x64 shellcoding level 5	10	109	Mr.Un1k0d3r
Linux x64 shellcoding level 6	12	93	Mr.Un1k0d3r
Linux x64 shellcoding level 7	14	53	Mr.Un1k0d3r

SQL Injection (32)

Challenges descriptions	Points	Validation	Author
Most basic SQLi pattern.	1	7989	Mr.Un1k0d3r
Random Login Form	2	1542	Mr.Un1k0d3r
Po po po po postgresql	2	1667	Mr.Un1k0d3r
Login portal 1	2	2953	Mr.Un1k0d3r
ACL rulezzz the world.	2	4002	Mart
Login portal 2	3	553	Mr.Un1k0d3r
Don't mess with Noemie; she hates admin!	3	744	Mr.Un1k0d3r
0 Day Store	3	118	NSEC 2015
What's the definition of NULL	3	642	Mr.Un1k0d3r
Don't Stumble in the Process	4	45	mbergeron
Brain Teaser 1	4	22	Sideni
Quote of the day	4	585	Mr.Un1k0d3r
No more hacking for me!	4	284	Mr.Un1k0d3r
Thinking outside the box is the key	4	491	Mr.Un1k0d3r
Quote of the day reloaded	5	228	Mr.Un1k0d3r
When it's lite it's not necessarily easy	6	202	Mr.Un1k0d3r
Login portal 3	6	231	Mr.Un1k0d3r
Hot Single Mom	6	155	GoSec CTF 2014
Internet As A Service	7	106	Mr.Un1k0d3r
Size DOES matter	7	131	Mr.Un1k0d3r
Brain Teaser 2	7	13	Sideni
/etc/passwd	7	137	Mr.Un1k0d3r
Groups of hacker	7	152	Mr.Un1k0d3r
Login portal 4	7	142	Mr.Un1k0d3r
Login portal 5	8	69	Mr.Un1k0d3r
The useless search tool	8	115	Mr.Un1k0d3r
stackoverflow.com lied to me... again	9	72	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 (26)

Challenges descriptions	Points	Validation	Author
You're lost? Use the map	1	1476	Mr.Un1k0d3r
Victor you're hidding me something	1	2175	Cedrick Chaput
SigID Level 1	1	904	Guenael
I'm Goronyo Babad Nigerian prince	2	484	Mr.Un1k0d3r
Hidden In Plain Sight	2	585	NSEC 2015
The vestige of dial-up Internet	2	98	Uid0
Missing Pieces	2	684	Cedrick Chaput
Brainsick	2	759	Mr.Un1k0d3r
Pixel Everywhere	2	106	Mr.Un1k0d3r
The Sloth	2	98	Misker
Victor reloaded	2	893	Cedrick Chaput
A ghost sound	2	725	Cedrick Chaput
Look inside the house	2	815	Mr.Un1k0d3r
Crazy Cat Lady	3	58	Madness
Love Letter	3	169	Towel
5 beautiful colors	3	38	PublicName
Can you see through the matrix!	3	133	Mr.Un1k0d3r
Your old friend Orloge Simard	3	528	Cedrick Chaput
Even the Odds	4	14	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	132	Cedrick Chaput
Stop the violence	5	16	jusb3
Stop the violence 2	5	6	jusb3
SigID Level 2	6	11	Guenael

SysAdmin Linux (8)

Challenges descriptions	Points	Validation	Author
SysAdmin Part 1	1	2163	Cedrick Chaput
SysAdmin Part 2	1	1555	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3	1	958	Mr.Un1k0d3r
SysAdmin Part 4	2	923	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5	2	569	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6	3	539	Cedrick Chaput
SysAdmin Part 7	4	441	Cedrick Chaput
SysAdmin Part 8	4	509	Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions	Points	Validation	Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1	7	49	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1	3	27	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2	7	25	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3	10	26	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 (48)

Challenges descriptions	Points	Validation	Author
Looking for password file	1	3623	Mr.Un1k0d3r
Area 51	1	2419	Mr.Un1k0d3r
Big Brother is watching	1	3518	Mr.Un1k0d3r
Headache	1	3180	Mr.Un1k0d3r
Words mean something?	1	2524	Mr.Un1k0d3r
Hacking skill are optional	1	145	Breached Company
Captcha I	2	483	SynneR
Password reset	2	848	Mr.Un1k0d3r
Admin Portal	2	1076	Mr.Un1k0d3r
XSS Challenge 1	2	349	Mr.Un1k0d3r
PHP Fairy	2	726	nic-Lovin
XSS Challenge 2	2	345	Mr.Un1k0d3r
Unreadable captcha	2	345	SynneR
Security thru obscurity!	2	892	Mr.Un1k0d3r
Malicious upload	2	520	Mr.Un1k0d3r
REST in peace	3	197	GoSec CTF 2014
Beyond Reality Part 1	3	12	NSEC 2019 (ldionmarcil)
NeuroSoft: Observation Unit Center	3	15	NSEC 2019 (ldionmarcil)
Password reset reloaded	3	324	Mr.Un1k0d3r
Captcha IV	3	18	FadedForEver
PHP feature or 0day?	3	366	Mr.Un1k0d3r
JWT pitfall 1	3	44	Mr.Un1k0d3r
Serial killer!	3	417	Mr.Un1k0d3r
Looking for the flag?	3	647	Mr.Un1k0d3r
XSS Challenge 4	3	182	Mr.Un1k0d3r
XSS Challenge 3	3	167	Mr.Un1k0d3r
Facebook will never forget this one	3	193	Mr.Un1k0d3r
Captcha II	4	125	SynneR
Propaganda mail	4	212	NSEC 2015
Captcha III	4	39	mbergeron
Beyond Reality Part 2	5	10	NSEC 2019 (ldionmarcil)
Super Lottery	5	61	davidlebr1
The archive	5	18	NSEC 2019 (HoLyVieR)
Lost API	5	21	NSEC 2019 (HoLyVieR)
Password Reset As a Service	5	48	Mr.Un1k0d3r
Timesheet As a Service	5	22	Mr.Un1k0d3r
Read the unreadable	5	95	Mr.Un1k0d3r
Freedom Firewall	5	104	NSEC 2015
XSS Challenge 5	6	113	Mr.Un1k0d3r
I hate this one	6	204	Mr.Un1k0d3r
Orao's factory	6	103	NSEC 2015
Serial killer part 2	6	39	HoLyVieR
PHP feature or 0day reloaded?	6	68	Mr.Un1k0d3r
XPATH of hell!	7	122	Francois L. Feat Mr.Un1k0d3r
Super Lottery Reloaded	7	17	davidlebr1 Feat mbergeron
Ping It!	7	19	mnadeau
Looking for god in your life?	8	62	NSEC 2015
Secure Mail	8	71	GoSec CTF 2014

Flag statistics (159040 submitted so far)

Number of points	Number of validation	Number of points	Number of validation
18 points	9	15 points	15
14 points	58	13 points	47
12 points	142	11 points	37
10 points	286	9 points	152
8 points	915	7 points	2034
6 points	4368	5 points	4290
4 points	9521	3 points	18788
2 points	51987	1 points	66391

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.