Challenges

320 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 Down
Hot Single Mom sandbox is Up	Bash Jail 1 sandbox is Up

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>HellÔ !<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.