Challenges

348 challenges are currently available

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Sandboxes Status

Challenges
SysAdmin Part 1 sandbox is Up	Secure Mail sandbox is Down
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	2960	Mr.Un1k0d3r
Ask your grandpa!	2	1098	Mr.Un1k0d3r's Dad
Hash me reloaded	3	1634	Mr.Un1k0d3r
I hate mathematics	3	1727	Mr.Un1k0d3r
Ask your grandpa again!	4	368	Mr.Un1k0d3r's Dad
Hash breaker	4	1332	Mr.Un1k0d3r
I saw a little elf	4	484	Mr.Un1k0d3r
Hash breaker reloaded	5	775	Mr.Un1k0d3r
Execute me if you can	5	383	Mr.Un1k0d3r
Read me if you can	6	413	Mr.Un1k0d3r
Hash breaker reloaded again	6	262	Mr.Un1k0d3r
Ascii Art	6	614	Mr.Un1k0d3r
Execute me if you can again	6	192	Mr.Un1k0d3r
Xor me if you can	6	388	Mr.Un1k0d3r
Number game	7	309	Mr.Un1k0d3r remade by theindian
Classic Sudoku	7	262	Mr.Un1k0d3r remade by dread_knight
Find the right word	7	320	Mr.Un1k0d3r

Cryptography (36)

Challenges descriptions	Points	Validation	Author
Some martian message	1	6211	Mr.Un1k0d3r
You're Drunk!	1	1704	Mr.Un1k0d3r
File recovery	1	2931	Mr.Un1k0d3r
Fashion Victim	2	476	GoSec CTF 2014
Public key recovery	2	1448	Mr.Un1k0d3r
Martian message part 2	2	2632	Mr.Un1k0d3r
Let's Play Scrabble!	3	45	Madness
Can you understand this sentence?	3	649	Mr.Un1k0d3r
Hangovers and more: Bacon	3	512	SynneR
Martian message part 3	3	1004	Mr.Un1k0d3r
I Lost my password	3	1068	Mr.Un1k0d3r
Crypto over the network	4	124	Mr.Un1k0d3r remade by theindian
Encrypted Zip	4	533	Mr.Un1k0d3r
Crypto Object	4	179	GoSec CTF 2014
Crypto Leak	4	43	NSEC 2018 (Towel)
SSO Service	4	15	Mr.Un1k0d3r (Trustwave CTF 2020)
Jabber	5	9	Madness
Free Flag Encrypter	5	17	Towel
Let's Play Scrabble! Part 2	5	24	Madness
Is it a secure string?	5	244	Cedrick Chaput
Guess the number	6	17	cyberguru
TotalSecure Message Encrypter	6	90	Towel
Pattern is the key	6	43	Mr.Un1k0d3r
Welcome to the asylum	6	56	GoSec CTF 2014
Jabber Part 2	7	8	Madness
Malcolm	7	19	Trustwave CTF 2020
Homemade craptography #2	7	10	HoLyVieR ft. large software company
Mars Log	8	9	NSEC 2018 (Towel)
Crypto is not good as you think	8	164	Mr.Un1k0d3r
Homemade Craptography	8	9	NSEC 2018 (HoLyVieR)
Rusty RSA message signing service	9	14	b0n0n & An0n remade by dysleixa
Spies	9	32	CS Games 2016 (HoLyVieR)
Find your path	9	9	cyberguru
Polly Wants a Cracker	10	6	Madness
TotalSecure Message Encrypter V2	10	18	Towel
Unicorn As A Service	11	8	Towel

Exotic Data Storage (4)

Challenges descriptions	Points	Validation	Author
Just another login form	2	1433	Mr.Un1k0d3r
DON'T login as admin	2	33	mbergeron
I forgot my password	3	31	mbergeron
Inspiration	6	33	NSEC 2019 (becojo)

Forensics (28)

Challenges descriptions	Points	Validation	Author
Who I am part 2	1	607	Mr.Un1k0d3r
I made a dd of Agent Smith usb key	1	3059	Cedrick Chaput
I love cat	2	682	Mr.Un1k0d3r
Dr. Pouce	2	2251	Cedrick Chaput
Attention Dinosaure Survive	2	1267	PRL
The good, the bad and the ugly	2	120	Mr.Un1k0d3r
1 / 3 Do not waste the environment	2	961	PRL
Hide my ass in my home!	2	1473	Cedrick Chaput
Hey Chuck where is the flag?	2	1452	Mr.Un1k0d3r
Meat Loaf	2	279	Ekse
Who I am?	2	953	Mr.Un1k0d3r
The words flew but writing remains	3	157	Martin Dube
2 / 3 Did you see my desktop?	3	783	PRL
Are you Twisted Insane?	3	26	Cedrick Feat Mr.Un1k0d3r
Someone steal my flag!	3	391	Mr.Un1k0d3r
802.1X Part 1	4	62	NSEC 2015
3 / 3 Suspicious account password?	4	640	PRL
Poor internet connection	4	381	Cedrick Chaput
Agent Smith reloaded	4	249	Cedrick Chaput
R.I.P MsPaint	4	98	Misker
We got breached	5	204	Mr.Un1k0d3r
Someone steal my flag again	5	134	GoSec CTF 2014
Ping pong	5	85	SynneR
Spy my girl	5	204	Cedrick Chaput
We got breached again	6	147	Mr.Un1k0d3r
Russian Crypto Roulette	6	67	SynneR
Really Depressed Protocol	7	73	SynneR
802.1X Part 2	8	44	NSEC 2015

Jail Escaping (21)

Challenges descriptions	Points	Validation	Author
Bash Jail 1	1	2200	Mr.Un1k0d3r
Bash Jail 2	2	1403	Mr.Un1k0d3r
Bash Jail 3	3	794	Mr.Un1k0d3r
Bash Jail 4	4	428	Mr.Un1k0d3r
Bash Jail 5	6	185	Mr.Un1k0d3r
Bash Jail 6	8	27	Garigouster
Bash Jail 7	12	15	Garigouster
C Jail 1	1	355	Mr.Un1k0d3r
C Jail 2	2	229	Mr.Un1k0d3r
C Jail 3	3	189	Mr.Un1k0d3r
C Jail 4	5	20	Garigouster
C Jail 5	7	11	Garigouster
C Jail 6	14	7	Garigouster
PHP Jail 1	1	546	Mr.Un1k0d3r
PHP Jail 2	2	361	Mr.Un1k0d3r
PHP Jail 3	3	252	Mr.Un1k0d3r
PHP Jail 4	4	196	Mr.Un1k0d3r
PHP Jail 5	6	162	Mr.Un1k0d3r
PyJail 1	3	229	Martin Dube
PyJail 2	5	124	Martin Dube
PyJail 3	6	44	Martin Dube

JavaScript (10)

Challenges descriptions	Points	Validation	Author
Client side validation is bad!	1	6755	Mr.Un1k0d3r
Hashing is more secure	1	5866	Mr.Un1k0d3r
Then obfuscation is more secure	1	4470	Mr.Un1k0d3r
Most Secure Crypto Algo	2	1624	Mr.Un1k0d3r
Valid key required	2	891	Francois Lajeunesse
Why not?	2	3415	Mr.Un1k0d3r
Why not be more secure?	5	552	Mr.Un1k0d3r
WTF Lol!	6	259	HoLyVieR
Interstellar PhoneBook	6	39	NSEC 2018 (HoLyVieR)
Beauty and the beast	7	39	Mr.Un1k0d3r

Malware Analysis (22)

Challenges descriptions	Points	Validation	Author
APT 1337	4	46	NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1	1	627	Mr.Un1k0d3r
Capture 1 Part 2	1	207	Mr.Un1k0d3r
Capture 1 Part 3	1	232	Mr.Un1k0d3r
Capture 1 Part 4	2	32	Mr.Un1k0d3r
Capture 1 Part 5	3	55	Mr.Un1k0d3r
Capture 1 Part 6	3	146	Mr.Un1k0d3r
Capture 1 Part 7	3	28	Mr.Un1k0d3r
Capture 2 Part 1	1	56	Mr.Un1k0d3r
Capture 2 Part 2	1	107	Mr.Un1k0d3r
Capture 2 Part 3	1	108	Mr.Un1k0d3r
Capture 2 Part 4	3	105	Mr.Un1k0d3r
Capture 2 Part 5	4	38	Mr.Un1k0d3r
Capture 2 Part 6	7	16	Mr.Un1k0d3r
Evil X	8	3	cyberguru
Just Another MBR Ransomware	8	18	Towel
RAO democracy	4	52	NSEC 2017 (Mr.Un1k0d3r)
This malware excels Part 1	2	27	HF 2020 (nic-lovin)
This malware excels Part 2	1	26	HF 2020 (nic-lovin)
This malware excels Part 3	2	19	HF 2020 (nic-lovin)
This malware excels Part 4	5	11	HF 2020 (nic-lovin)
WebShell of Hell	5	18	An0n

Pwnage Linux (21)

Challenges descriptions	Points	Validation	Author
Level1 Pwnage Linux Level Up	1	655	P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up	2	405	P-Y Feat Martin Dube
Remote Auth	2	96	NSEC 2015
Level3 Pwnage Linux Level Up	3	290	P-Y Feat Martin Dube
The Vault	3	47	Mr.Un1k0d3r
Level1 Pwnage Linux x86_64	3	194	Mr.Un1k0d3r
Level2 Pwnage Linux x86_64	4	69	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	136	Mr.Un1k0d3r
RPCFTW!	6	34	NSEC 2015
Jack the heaper	6	18	uaf.io
Level4 Pwnage Linux x86_64	7	41	Mr.Un1k0d3r
Level3 Pwnage Linux x86_64	7	66	Mr.Un1k0d3r
Base64 As A Service	8	26	Guilt
Take over the Virtual World	8	37	NSEC 2015
Just another useless service	8	34	NSEC 2015
All You Need Is a Client	8	10	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	1253	Mr.Un1k0d3r
See No Evil - Part 1	2	136	alxbl
Gift as a Service Part 2	2	40	H0H0H0 Day (R0 team)
Time to learn x86 ASM & gdb	2	2041	Mr.Un1k0d3r
See No Evil - Part 2	3	103	alxbl
See No Evil - Part 3	3	99	alxbl
Intro To Sparc	3	178	Ian-Kyle Wagner
Kernel introduction	3	262	Mr.Un1k0d3r
Heap allocator	3	281	NSEC 2015
Windows x86 reversing is cool	3	712	Mr.Un1k0d3r
Crack Me 1	3	769	Mr.Un1k0d3r
Introduction to MIPS	3	323	Mr.Un1k0d3r
I never forget the Nintendo 64	3	639	Mr.Un1k0d3r
Power to the people	4	72	NSEC 2015
Old School	4	79	Towel
Let's take a detour	4	96	Floesen
Altera?	4	74	NSEC 2016
Wrong byte!	4	277	Mr.Un1k0d3r
Windows API for the win	4	338	Mr.Un1k0d3r
Introduction to ARM	4	356	Mr.Un1k0d3r
Space Invaders	4	22	Trustwave CTF 2020
I love tea!	4	31	nic-lovin
See No Evil - Part 5	4	66	alxbl
See No Evil - Part 4	4	73	alxbl
ASM Lovers	4	94	NSEC 2016
The MI7 password prompt	5	64	NSEC 2018 (Mr.Un1k0d3r)
Reindeer Game	5	9	H0H0H0 Day 2020 (Towel)
Phenix Golgoth	5	59	Hackfest 2016
Can I speak with the kernel?	5	86	Zerosum0x0
WASM Part 1	5	71	NSEC 2018 (Isra17)
Back to our roots	5	118	Mr.Un1k0d3r
Virtual World	5	82	NSEC 2015
RingZer0 Authenticator	5	242	Ekse
Smart enough?	5	121	NSEC 2015
Pwndr3 Authenticator	5	63	Pwndr3
Flag stealer	6	79	Ekse
Need a client	6	73	Mr.Un1k0d3r
Update Manager	6	62	Ekse
I Think I forgot to take out the garbage!	6	24	Mr.Un1k0d3r
SOS Lib	7	32	Mr.Un1k0d3r
Armed and ready	7	15	NSEC 2015
The supreme bash	7	24	NSEC 2017 (Mr.Un1k0d3r)
Cappin'	7	2	Mr.Un1k0d3r (Trustwave CTF 2020)
Buggy Bunny	7	10	Garigouster
Rebate As A Service	8	42	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	12	Towel
Trolling the troll	10	32	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	10	NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions	Points	Validation	Author
Basics of Linux x64 shellcoding	2	517	Mr.Un1k0d3r
Linux x64 shellcoding level 2	4	264	Mr.Un1k0d3r
Linux x64 shellcoding level 3	6	206	Mr.Un1k0d3r
Linux x64 shellcoding level 4	8	163	Mr.Un1k0d3r
Linux x64 shellcoding level 5	10	115	Mr.Un1k0d3r
Linux x64 shellcoding level 6	12	99	Mr.Un1k0d3r
Linux x64 shellcoding level 7	14	58	Mr.Un1k0d3r

Software Defined Radio (5)

Challenges descriptions	Points	Validation	Author
SigID Level 1	1	962	Guenael
You Turn Me On And Off	3	12	Trustwave CTF 2020
Let's Get Scwhifty!	5	11	Trustwave CTF 2020
SigID Level 2	6	12	Guenael
Don't flip out, Thomas!	7	10	Trustwave CTF 2020

SQL Injection (32)

Challenges descriptions	Points	Validation	Author
Most basic SQLi pattern.	1	8723	Mr.Un1k0d3r
Random Login Form	2	1846	Mr.Un1k0d3r
Po po po po postgresql	2	1933	Mr.Un1k0d3r
Login portal 1	2	3236	Mr.Un1k0d3r
ACL rulezzz the world.	2	4235	Mart
Login portal 2	3	693	Mr.Un1k0d3r
Don't mess with Noemie; she hates admin!	3	853	Mr.Un1k0d3r
0 Day Store	3	131	NSEC 2015
What's the definition of NULL	3	711	Mr.Un1k0d3r
Don't Stumble in the Process	4	52	mbergeron
Brain Teaser 1	4	27	Sideni
Quote of the day	4	624	Mr.Un1k0d3r
No more hacking for me!	4	309	Mr.Un1k0d3r
Thinking outside the box is the key	4	521	Mr.Un1k0d3r
Quote of the day reloaded	5	242	Mr.Un1k0d3r
When it's lite it's not necessarily easy	6	219	Mr.Un1k0d3r
Login portal 3	6	248	Mr.Un1k0d3r
Hot Single Mom	6	166	GoSec CTF 2014
Internet As A Service	7	119	Mr.Un1k0d3r
Size DOES matter	7	137	Mr.Un1k0d3r
Brain Teaser 2	7	15	Sideni
/etc/passwd	7	147	Mr.Un1k0d3r
Groups of hacker	7	159	Mr.Un1k0d3r
Login portal 4	7	148	Mr.Un1k0d3r
Login portal 5	8	71	Mr.Un1k0d3r
The useless search tool	8	121	Mr.Un1k0d3r
stackoverflow.com lied to me... again	9	80	Corb3nik
Doctor Who ?	9	9	Sideni
Login portal 6	10	59	Mr.Un1k0d3r
SQHell	11	14	Sideni feat. mbergeron
Don't Stumble in the Process Reloaded	12	8	mbergeron
!Mysql + Brain fart	13	31	Mr.Un1k0d3r

Steganography (24)

Challenges descriptions	Points	Validation	Author
You're lost? Use the map	1	1647	Mr.Un1k0d3r
Victor you're hidding me something	1	2356	Cedrick Chaput
The vestige of dial-up Internet	2	147	Uid0
Pixel Everywhere	2	145	Mr.Un1k0d3r
Hidden In Plain Sight	2	632	NSEC 2015
Missing Pieces	2	729	Cedrick Chaput
Brainsick	2	816	Mr.Un1k0d3r
I'm Goronyo Babad Nigerian prince	2	526	Mr.Un1k0d3r
The Sloth	2	115	Misker
Victor reloaded	2	946	Cedrick Chaput
A ghost sound	2	773	Cedrick Chaput
Look inside the house	2	885	Mr.Un1k0d3r
Crazy Cat Lady	3	77	Madness
Can you see through the matrix!	3	139	Mr.Un1k0d3r
Love Letter	3	192	Towel
5 beautiful colors	3	46	PublicName
Your old friend Orloge Simard	3	562	Cedrick Chaput
Even the Odds	4	17	alxbl
Not just 64	4	15	Madness
Stay Classy!	4	17	Sideni
Can you see through the matrix reloaded!	4	27	Towel
Walk the line!	5	143	Cedrick Chaput
Stop the violence	5	17	jusb3
Stop the violence 2	5	6	jusb3

SysAdmin Linux (8)

Challenges descriptions	Points	Validation	Author
SysAdmin Part 1	1	2417	Cedrick Chaput
SysAdmin Part 2	1	1749	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3	1	1110	Mr.Un1k0d3r
SysAdmin Part 4	2	1044	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5	2	670	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6	3	634	Cedrick Chaput
SysAdmin Part 7	4	515	Cedrick Chaput
SysAdmin Part 8	4	571	Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions	Points	Validation	Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1	7	53	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1	3	32	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2	7	30	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3	10	30	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	4174	Mr.Un1k0d3r
Big Brother is watching	1	3980	Mr.Un1k0d3r
Area 51	1	2714	Mr.Un1k0d3r
Headache	1	3527	Mr.Un1k0d3r
Words mean something?	1	2815	Mr.Un1k0d3r
Hacking skill are optional	1	203	Breached Company
Unreadable captcha	2	380	SynneR
Captcha I	2	535	SynneR
Password reset	2	935	Mr.Un1k0d3r
Admin Portal	2	1131	Mr.Un1k0d3r
PHP Fairy	2	847	nic-Lovin
XSS Challenge 1	2	464	Mr.Un1k0d3r
XSS Challenge 2	2	447	Mr.Un1k0d3r
Security thru obscurity!	2	948	Mr.Un1k0d3r
Malicious upload	2	560	Mr.Un1k0d3r
Gift as a Service Part 1	3	42	H0H0H0 Day (R0 team)
PHP feature or 0day?	3	414	Mr.Un1k0d3r
UploadStar	3	38	nopernik
Beyond Reality Part 1	3	41	NSEC 2019 (ldionmarcil)
NeuroSoft: Observation Unit Center	3	44	NSEC 2019 (ldionmarcil)
Captcha IV	3	31	FadedForEver
JWT pitfall 1	3	57	Mr.Un1k0d3r
REST in peace	3	203	GoSec CTF 2014
XSS Challenge 3	3	184	Mr.Un1k0d3r
XSS Challenge 4	3	199	Mr.Un1k0d3r
Facebook will never forget this one	3	211	Mr.Un1k0d3r
Password reset reloaded	3	342	Mr.Un1k0d3r
Looking for the flag?	3	698	Mr.Un1k0d3r
Serial killer!	3	438	Mr.Un1k0d3r
Propaganda mail	4	232	NSEC 2015
Captcha II	4	137	SynneR
Captcha III	4	50	mbergeron
Beyond Reality Part 2	5	26	NSEC 2019 (ldionmarcil)
Lost API	5	35	NSEC 2019 (HoLyVieR)
The archive	5	22	NSEC 2019 (HoLyVieR)
UploadStar Reloaded	5	26	nopernik
Super Lottery	5	73	davidlebr1
Password Reset As a Service	5	59	Mr.Un1k0d3r
Timesheet As a Service	5	22	Mr.Un1k0d3r
Freedom Firewall	5	119	NSEC 2015
Read the unreadable	5	111	Mr.Un1k0d3r
XSS Challenge 5	6	123	Mr.Un1k0d3r
PHP feature or 0day reloaded?	6	72	Mr.Un1k0d3r
Serial killer part 2	6	43	HoLyVieR
Orao's factory	6	112	NSEC 2015
I hate this one	6	217	Mr.Un1k0d3r
XPATH of hell!	7	132	Francois L. Feat Mr.Un1k0d3r
Ping It!	7	30	mnadeau
Super Lottery Reloaded	7	26	davidlebr1 Feat mbergeron
Looking for god in your life?	8	63	NSEC 2015
Secure Mail	8	79	GoSec CTF 2014

Flag statistics (174829 submitted so far)

Number of points	Number of validation	Number of points	Number of validation
18 points	10	15 points	15
14 points	65	13 points	48
12 points	148	11 points	38
10 points	304	9 points	177
8 points	984	7 points	2263
6 points	4719	5 points	4807
4 points	10474	3 points	20746
2 points	56932	1 points	73099

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.