Challenges

299 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	2065	Mr.Un1k0d3r
Ask your grandpa!	2	800	Mr.Un1k0d3r's Dad
Hash me reloaded	3	1196	Mr.Un1k0d3r
I hate mathematics	3	1300	Mr.Un1k0d3r
Ask your grandpa again!	4	257	Mr.Un1k0d3r's Dad
Hash breaker	4	977	Mr.Un1k0d3r
I saw a little elf	4	352	Mr.Un1k0d3r
Hash breaker reloaded	5	586	Mr.Un1k0d3r
Execute me if you can	5	309	Mr.Un1k0d3r
Read me if you can	6	306	Mr.Un1k0d3r
Hash breaker reloaded again	6	199	Mr.Un1k0d3r
Ascii Art	6	460	Mr.Un1k0d3r
Execute me if you can again	6	156	Mr.Un1k0d3r
Xor me if you can	6	308	Mr.Un1k0d3r
Number game	7	204	Mr.Un1k0d3r
Classic Sudoku	7	180	Mr.Un1k0d3r
Find the right word	7	235	Mr.Un1k0d3r

Cryptography (28)

Challenges descriptions	Points	Validation	Author
Some martian message	1	4246	Mr.Un1k0d3r
You're Drunk!	1	566	Mr.Un1k0d3r
File recovery	1	2112	Mr.Un1k0d3r
Martian message part 2	2	1930	Mr.Un1k0d3r
Fashion Victim	2	314	GoSec CTF 2014
Public key recovery	2	1052	Mr.Un1k0d3r
Hangovers and more: Bacon	3	358	SynneR
Can you understand this sentence?	3	461	Mr.Un1k0d3r
I Lost my password	3	835	Mr.Un1k0d3r
Martian message part 3	3	722	Mr.Un1k0d3r
Crypto over the network	4	105	Mr.Un1k0d3r
Crypto Leak	4	20	NSEC 2018 (Towel)
Crypto Object	4	125	GoSec CTF 2014
Encrypted Zip	4	383	Mr.Un1k0d3r
Is it a secure string?	5	190	Cedrick Chaput
Jabber	5	3	Madness
Free Flag Encrypter	5	14	Towel
Welcome to the asylum	6	46	GoSec CTF 2014
Pattern is the key	6	38	Mr.Un1k0d3r
TotalSecure Message Encrypter	6	68	Towel
Jabber Part 2	7	2	Madness
Crypto is not good as you think	8	115	Mr.Un1k0d3r
Homemade Craptography	8	3	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	16	Towel
Unicorn As A Service	11	6	Towel

Forensics (28)

Challenges descriptions	Points	Validation	Author
Who I am part 2	1	250	Mr.Un1k0d3r
I made a dd of Agent Smith usb key	1	2285	Cedrick Chaput
I love cat	2	217	Mr.Un1k0d3r
Dr. Pouce	2	1671	Cedrick Chaput
Attention Dinosaure Survive	2	910	PRL
The good, the bad and the ugly	2	53	Mr.Un1k0d3r
1 / 3 Do not waste the environment	2	723	PRL
Hide my ass in my home!	2	1100	Cedrick Chaput
Hey Chuck where is the flag?	2	1069	Mr.Un1k0d3r
Meat Loaf	2	177	Ekse
Who I am?	2	640	Mr.Un1k0d3r
The words flew but writing remains	3	113	Martin Dube
2 / 3 Did you see my desktop?	3	616	PRL
Are you Twisted Insane?	3	20	Cedrick Feat Mr.Un1k0d3r
Someone steal my flag!	3	263	Mr.Un1k0d3r
802.1X Part 1	4	41	NSEC 2015
3 / 3 Suspicious account password?	4	494	PRL
Poor internet connection	4	319	Cedrick Chaput
Agent Smith reloaded	4	186	Cedrick Chaput
R.I.P MsPaint	4	62	Misker
We got breached	5	149	Mr.Un1k0d3r
Someone steal my flag again	5	77	GoSec CTF 2014
Ping pong	5	67	SynneR
Spy my girl	5	141	Cedrick Chaput
We got breached again	6	117	Mr.Un1k0d3r
Russian Crypto Roulette	6	54	SynneR
Really Depressed Protocol	7	59	SynneR
802.1X Part 2	8	32	NSEC 2015

Jail Escaping (21)

Challenges descriptions	Points	Validation	Author
Bash Jail 1	1	1368	Mr.Un1k0d3r
Bash Jail 2	2	889	Mr.Un1k0d3r
Bash Jail 3	3	530	Mr.Un1k0d3r
Bash Jail 4	4	300	Mr.Un1k0d3r
Bash Jail 5	6	127	Mr.Un1k0d3r
Bash Jail 6	8	14	Garigouster
Bash Jail 7	12	9	Garigouster
C Jail 1	1	237	Mr.Un1k0d3r
C Jail 2	2	161	Mr.Un1k0d3r
C Jail 3	3	133	Mr.Un1k0d3r
C Jail 4	5	13	Garigouster
C Jail 5	7	9	Garigouster
C Jail 6	14	4	Garigouster
PHP Jail 1	1	391	Mr.Un1k0d3r
PHP Jail 2	2	258	Mr.Un1k0d3r
PHP Jail 3	3	173	Mr.Un1k0d3r
PHP Jail 4	4	133	Mr.Un1k0d3r
PHP Jail 5	6	108	Mr.Un1k0d3r
PyJail 1	3	162	Martin Dube
PyJail 2	5	95	Martin Dube
PyJail 3	6	32	Martin Dube

JavaScript (10)

Challenges descriptions	Points	Validation	Author
Client side validation is bad!	1	5050	Mr.Un1k0d3r
Hashing is more secure	1	4422	Mr.Un1k0d3r
Then obfuscation is more secure	1	3325	Mr.Un1k0d3r
Most Secure Crypto Algo	2	1040	Mr.Un1k0d3r
Valid key required	2	647	Francois Lajeunesse
Why not?	2	2844	Mr.Un1k0d3r
Why not be more secure?	5	401	Mr.Un1k0d3r
WTF Lol!	6	186	HoLyVieR
Interstellar PhoneBook	6	18	NSEC 2018 (Holyvier)
Beauty and the beast	7	28	Mr.Un1k0d3r

Malware Analysis (17)

Challenges descriptions	Points	Validation	Author
APT 1337	4	23	NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1	1	441	Mr.Un1k0d3r
Capture 1 Part 2	1	141	Mr.Un1k0d3r
Capture 1 Part 3	1	159	Mr.Un1k0d3r
Capture 1 Part 4	2	19	Mr.Un1k0d3r
Capture 1 Part 5	3	34	Mr.Un1k0d3r
Capture 1 Part 6	3	110	Mr.Un1k0d3r
Capture 1 Part 7	3	21	Mr.Un1k0d3r
Capture 2 Part 1	1	43	Mr.Un1k0d3r
Capture 2 Part 2	1	77	Mr.Un1k0d3r
Capture 2 Part 3	1	79	Mr.Un1k0d3r
Capture 2 Part 4	3	76	Mr.Un1k0d3r
Capture 2 Part 5	4	26	Mr.Un1k0d3r
Capture 2 Part 6	7	10	Mr.Un1k0d3r
Just Another MBR Ransomware	8	11	Towel
RAO democracy	4	37	NSEC 2017 (Mr.Un1k0d3r)
WebShell of Hell	5	7	An0n

Pwnage Linux (19)

Challenges descriptions	Points	Validation	Author
Level1 Pwnage Linux Level Up	1	456	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	158	Mr.Un1k0d3r
Level2 Pwnage Linux x86_64	4	52	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	48	Mr.Un1k0d3r
Level4 Pwnage Linux x86_64	7	29	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	1590	Mr.Un1k0d3r
Can you see through the star	2	957	Mr.Un1k0d3r
Crack Me 1	3	624	Mr.Un1k0d3r
Kernel introduction	3	182	Mr.Un1k0d3r
Heap allocator	3	186	NSEC 2015
Introduction to MIPS	3	240	Mr.Un1k0d3r
I never forget the Nintendo 64	3	491	Mr.Un1k0d3r
Windows x86 reversing is cool	3	564	Mr.Un1k0d3r
Intro To Sparc	3	96	Ian-Kyle Wagner
ASM Lovers	4	66	NSEC 2016
Wrong byte!	4	219	Mr.Un1k0d3r
Let's take a detour	4	63	Floesen
Altera?	4	41	NSEC 2016
Power to the people	4	30	NSEC 2015
Old School	4	42	Towel
Introduction to ARM	4	269	Mr.Un1k0d3r
Windows API for the win	4	269	Mr.Un1k0d3r
The MI7 password prompt	5	35	NSEC 2018 (Mr.Un1k0d3r)
WASM Part 1	5	36	NSEC 2018 (Isra17)
Virtual World	5	52	NSEC 2015
Smart enough?	5	89	NSEC 2015
Phenix Golgoth	5	35	Hackfest 2016
Can I speak with the kernel?	5	49	Zerosum0x0
Pwndr3 Authenticator	5	43	Pwndr3
Back to our roots	5	90	Mr.Un1k0d3r
RingZer0 Authenticator	5	186	Ekse
Update Manager	6	50	Ekse
Need a client	6	71	Mr.Un1k0d3r
Flag stealer	6	58	Ekse
I Think I forgot to take out the garbage!	6	17	Mr.Un1k0d3r
The supreme bash	7	16	NSEC 2017 (Mr.Un1k0d3r)
SOS Lib	7	18	Mr.Un1k0d3r
Buggy Bunny	7	8	Garigouster
Armed and ready	7	11	NSEC 2015
Rebate As A Service	8	31	NSEC 2016
You're not welcome	8	42	Towel
License to kill	8	0	Mr.Un1k0d3r
WASM Part 2	8	7	NSEC 2018 (Isra17)
Trolling the troll	10	28	Mr.Un1k0d3r
Keygen time again	10	24	GoSec CTF 2014
The unknown challenge	11	15	Mr.Un1k0d3r
You're not welcome again!	12	18	Towel
WASM Part 3	12	5	NSEC 2018 (Isra17)
The oracle	13	16	Towel
Mars Reloaded	18	5	NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions	Points	Validation	Author
Basics of Linux x64 shellcoding	2	414	Mr.Un1k0d3r
Linux x64 shellcoding level 2	4	215	Mr.Un1k0d3r
Linux x64 shellcoding level 3	6	168	Mr.Un1k0d3r
Linux x64 shellcoding level 4	8	132	Mr.Un1k0d3r
Linux x64 shellcoding level 5	10	94	Mr.Un1k0d3r
Linux x64 shellcoding level 6	12	78	Mr.Un1k0d3r
Linux x64 shellcoding level 7	14	43	Mr.Un1k0d3r

SQL Injection (30)

Challenges descriptions	Points	Validation	Author
Most basic SQLi pattern.	1	6169	Mr.Un1k0d3r
ACL rulezzz the world.	2	3294	Mart
Login portal 1	2	2304	Mr.Un1k0d3r
Random Login Form	2	940	Mr.Un1k0d3r
Just another login form	2	1197	Mr.Un1k0d3r
Po po po po postgresql	2	1128	Mr.Un1k0d3r
0 Day Store	3	95	NSEC 2015
Don't mess with Noemie; she hates admin!	3	524	Mr.Un1k0d3r
What's the definition of NULL	3	479	Mr.Un1k0d3r
Login portal 2	3	353	Mr.Un1k0d3r
Quote of the day	4	454	Mr.Un1k0d3r
Thinking outside the box is the key	4	395	Mr.Un1k0d3r
No more hacking for me!	4	217	Mr.Un1k0d3r
Don't Stumble in the Process	4	33	Mbergeron
Quote of the day reloaded	5	179	Mr.Un1k0d3r
Hot Single Mom	6	121	GoSec CTF 2014
Login portal 3	6	185	Mr.Un1k0d3r
When it's lite it's not necessarily easy	6	163	Mr.Un1k0d3r
Internet As A Service	7	58	Mr.Un1k0d3r
Login portal 4	7	111	Mr.Un1k0d3r
Size DOES matter	7	115	Mr.Un1k0d3r
/etc/passwd	7	120	Mr.Un1k0d3r
Groups of hacker	7	139	Mr.Un1k0d3r
The useless search tool	8	103	Mr.Un1k0d3r
Login portal 5	8	64	Mr.Un1k0d3r
stackoverflow.com lied to me... again	9	54	Corb3nik
Login portal 6	10	51	Mr.Un1k0d3r
SQHell	11	12	Sideni feat. Mbergeron
Don't Stumble in the Process Reloaded	12	6	Mbergeron
!Mysql + Brain fart	13	29	Mr.Un1k0d3r

Steganography (24)

Challenges descriptions	Points	Validation	Author
You're lost? Use the map	1	1082	Mr.Un1k0d3r
Victor you're hidding me something	1	1674	Cedrick Chaput
SigID Level 1	1	682	Guenael
Pixel Everywhere	2	80	Mr.Un1k0d3r
The vestige of dial-up Internet	2	58	Uid0
The Sloth	2	76	Misker
Missing Pieces	2	542	Cedrick Chaput
Brainsick	2	602	Mr.Un1k0d3r
Hidden In Plain Sight	2	445	NSEC 2015
Victor reloaded	2	729	Cedrick Chaput
A ghost sound	2	611	Cedrick Chaput
Look inside the house	2	663	Mr.Un1k0d3r
I'm Goronyo Babad Nigerian prince	2	297	Mr.Un1k0d3r
Stay Classy!	3	10	Sideni
Crazy Cat Lady	3	23	Madness
Love Letter	3	136	Towel
5 beautiful colors	3	23	PublicName
Can you see through the matrix!	3	115	Mr.Un1k0d3r
Your old friend Orloge Simard	3	441	Cedrick Chaput
Can you see through the matrix reloaded!	4	21	Towel
Not just 64	4	6	Madness
Walk the line!	5	106	Cedrick Chaput
Stop the violence	5	7	jusb3
SigID Level 2	6	5	Guenael

SysAdmin Linux (8)

Challenges descriptions	Points	Validation	Author
SysAdmin Part 1	1	1545	Cedrick Chaput
SysAdmin Part 2	1	1093	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3	1	624	Mr.Un1k0d3r
SysAdmin Part 4	2	685	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5	2	361	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6	3	363	Cedrick Chaput
SysAdmin Part 7	4	278	Cedrick Chaput
SysAdmin Part 8	4	364	Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions	Points	Validation	Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1	7	26	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1	3	18	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2	7	18	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3	10	17	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 3	5	15	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 4	15	12	NSEC 2018 (isra17)

Web Warning (39)

Challenges descriptions	Points	Validation	Author
Big Brother is watching	1	2755	Mr.Un1k0d3r
Hacking skill are optional	1	33	Breached Company
Looking for password file	1	2800	Mr.Un1k0d3r
Area 51	1	1853	Mr.Un1k0d3r
Headache	1	2553	Mr.Un1k0d3r
Words mean something?	1	1981	Mr.Un1k0d3r
XSS Challenge 1	2	216	Mr.Un1k0d3r
Admin Portal	2	874	Mr.Un1k0d3r
Unreadable captcha	2	254	SynneR
XSS Challenge 2	2	241	Mr.Un1k0d3r
Captcha I	2	420	SynneR
Password reset	2	723	Mr.Un1k0d3r
PHP Fairy	2	484	nic-Lovin
Malicious upload	2	380	Mr.Un1k0d3r
Security thru obscurity!	2	742	Mr.Un1k0d3r
REST in peace	3	169	GoSec CTF 2014
Serial killer!	3	352	Mr.Un1k0d3r
PHP feature or 0day?	3	259	Mr.Un1k0d3r
Password reset reloaded	3	282	Mr.Un1k0d3r
Facebook will never forget this one	3	153	Mr.Un1k0d3r
XSS Challenge 3	3	121	Mr.Un1k0d3r
Looking for the flag?	3	528	Mr.Un1k0d3r
XSS Challenge 4	3	139	Mr.Un1k0d3r
Propaganda mail	4	152	NSEC 2015
Captcha III	4	21	Mbergeron
Captcha II	4	103	SynneR
Password Reset As a Service	5	28	Mr.Un1k0d3r
Timesheet As a Service	5	22	Mr.Un1k0d3r
Super Lottery	5	13	Sparkix
Read the unreadable	5	59	Mr.Un1k0d3r
Freedom Firewall	5	85	NSEC 2015
PHP feature or 0day reloaded?	6	59	Mr.Un1k0d3r
I hate this one	6	166	Mr.Un1k0d3r
Orao's factory	6	90	NSEC 2015
Serial killer part 2	6	31	HoLyVieR
XSS Challenge 5	6	91	Mr.Un1k0d3r
XPATH of hell!	7	102	Francois L. Feat Mr.Un1k0d3r
Looking for god in your life?	8	52	NSEC 2015
Secure Mail	8	59	GoSec CTF 2014

Flag statistics (122328 submitted so far)

Number of points	Number of validation	Number of points	Number of validation
18 points	5	15 points	12
14 points	47	13 points	45
12 points	116	11 points	33
10 points	244	9 points	109
8 points	756	7 points	1546
6 points	3539	5 points	3306
4 points	7330	3 points	14469
2 points	40279	1 points	50492

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

2019-02-17 14:53:32 - softie Please how do I submit my flags?
2019-02-07 13:11:02 - team_rocket solved 68 - need client, but sandbox.ringzer0team.com:60001 is down so no points :(
2019-02-06 00:31:50 - alakazou 30
2019-02-03 02:38:09 - TigerTony hey guyz, new here, where to start
2019-01-28 20:10:39 - sparkix sup
2019-01-27 21:50:40 - dakor Just made it to 30 points! Only need to do that 33 more times to get certified lol. Maybe someday...
2019-01-11 20:25:18 - Mr.Prontissimo @ghost_rider_0x90: Which Challenge ? Are you using Requests module ?
2019-01-07 10:41:49 - x00T hi all
2018-12-29 23:32:55 - Barberousse @ghost_rider_0x90 i've done all my coding challenges in python or shell. The language isn't the problem. You probably need to optimize your program
2018-12-25 10:49:16 - 4dla3 @jtnydv make writeups

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.