Challenges

376 challenges are currently available for a total of 1689 points.

RingZer0 Team provide you couple of tools that can help you. See available tools.

Means challenge completed.

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You have the opportunity to submit a write up for every challenge you successfully complete. Every time your write up is approved your earn RingZer0Gold. It's possible for you to exchange this gold for hints. The main goal of this initiative is to stimulate people to submit write up and share how they solved a challenge with other people. When you finish a challenge, you have the ability to view all published write up for the challenge. This way you can learn many ways to solve a unique challenge.

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
Sometime there is no buffer overflow sandbox is Up	Delivery As A Service sandbox is Up
Can you get the service password sandbox is Up	Just another useless service sandbox is Up

Coding Challenges (17)

Challenges descriptions	Points	Validation	Author
Hash me please	2	3275	Mr.Un1k0d3r
Ask your grandpa!	2	1190	Mr.Un1k0d3r's Dad
Hash me reloaded	3	1787	Mr.Un1k0d3r
I hate mathematics	3	1892	Mr.Un1k0d3r
Ask your grandpa again!	4	415	Mr.Un1k0d3r's Dad
Hash breaker	4	1465	Mr.Un1k0d3r
I saw a little elf	4	535	Mr.Un1k0d3r
Hash breaker reloaded	5	843	Mr.Un1k0d3r
Execute me if you can	5	411	Mr.Un1k0d3r
Read me if you can	6	452	Mr.Un1k0d3r
Ascii Art	6	667	Mr.Un1k0d3r
Execute me if you can again	6	206	Mr.Un1k0d3r
Hash breaker reloaded again	6	282	Mr.Un1k0d3r
Xor me if you can	6	420	Mr.Un1k0d3r
Find the right word	7	353	Mr.Un1k0d3r
Number game	7	337	Mr.Un1k0d3r remade by theindian
Classic Sudoku	7	286	Mr.Un1k0d3r remade by dread_knight

Cryptography (36)

Challenges descriptions	Points	Validation	Author
Some martian message	1	7035	Mr.Un1k0d3r
You're Drunk!	1	2201	Mr.Un1k0d3r
File recovery	1	3232	Mr.Un1k0d3r
Fashion Victim	2	567	GoSec CTF 2014
Martian message part 2	2	2916	Mr.Un1k0d3r
Public key recovery	2	1563	Mr.Un1k0d3r
I Lost my password	3	1153	Mr.Un1k0d3r
Let's Play Scrabble!	3	62	Madness
Hangovers and more: Bacon	3	563	SynneR
Martian message part 3	3	1139	Mr.Un1k0d3r
Can you understand this sentence?	3	708	Mr.Un1k0d3r
Encrypted Zip	4	583	Mr.Un1k0d3r
Crypto over the network	4	140	Mr.Un1k0d3r remade by theindian
Crypto Object	4	197	GoSec CTF 2014
Crypto Leak	4	54	NSEC 2018 (Towel)
SSO Service	4	20	Mr.Un1k0d3r (Trustwave CTF 2020)
Is it a secure string?	5	268	Cedrick Chaput
Let's Play Scrabble! Part 2	5	28	Madness
Jabber	5	9	Madness
Free Flag Encrypter	5	18	Towel
Guess the number	6	25	cyberguru
TotalSecure Message Encrypter	6	94	Towel
Welcome to the asylum	6	58	GoSec CTF 2014
Pattern is the key	6	46	Mr.Un1k0d3r
Malcolm	7	22	Trustwave CTF 2020
Jabber Part 2	7	8	Madness
Homemade craptography #2	7	12	HoLyVieR ft. large software company
Homemade Craptography	8	10	NSEC 2018 (HoLyVieR)
Mars Log	8	10	NSEC 2018 (Towel)
Crypto is not good as you think	8	173	Mr.Un1k0d3r
Find your path	9	11	cyberguru
Rusty RSA message signing service	9	15	b0n0n & An0n remade by dysleixa
Spies	9	33	CS Games 2016 (HoLyVieR)
Polly Wants a Cracker	10	7	Madness
TotalSecure Message Encrypter V2	10	19	Towel
Unicorn As A Service	11	9	Towel

Exotic Data Storage (4)

Challenges descriptions	Points	Validation	Author
Just another login form	2	1507	Mr.Un1k0d3r
DON'T login as admin	2	37	mbergeron
I forgot my password	3	33	mbergeron
Inspiration	6	35	NSEC 2019 (becojo)

Forensics (28)

Challenges descriptions	Points	Validation	Author
I made a dd of Agent Smith usb key	1	3361	Cedrick Chaput
Who I am part 2	1	761	Mr.Un1k0d3r
Meat Loaf	2	322	Ekse
Who I am?	2	1058	Mr.Un1k0d3r
Dr. Pouce	2	2393	Cedrick Chaput
Attention Dinosaure Survive	2	1376	PRL
The good, the bad and the ugly	2	144	Mr.Un1k0d3r
1 / 3 Do not waste the environment	2	1015	PRL
Hide my ass in my home!	2	1570	Cedrick Chaput
Hey Chuck where is the flag?	2	1561	Mr.Un1k0d3r
I love cat	2	793	Mr.Un1k0d3r
The words flew but writing remains	3	170	Martin Dube
2 / 3 Did you see my desktop?	3	830	PRL
Are you Twisted Insane?	3	32	Cedrick Feat Mr.Un1k0d3r
Someone steal my flag!	3	425	Mr.Un1k0d3r
802.1X Part 1	4	69	NSEC 2015
R.I.P MsPaint	4	108	Misker
3 / 3 Suspicious account password?	4	676	PRL
Poor internet connection	4	401	Cedrick Chaput
Agent Smith reloaded	4	266	Cedrick Chaput
Someone steal my flag again	5	146	GoSec CTF 2014
We got breached	5	218	Mr.Un1k0d3r
Ping pong	5	94	SynneR
Spy my girl	5	218	Cedrick Chaput
Russian Crypto Roulette	6	73	SynneR
We got breached again	6	157	Mr.Un1k0d3r
Really Depressed Protocol	7	81	SynneR
802.1X Part 2	8	48	NSEC 2015

Jail Escaping (21)

Challenges descriptions	Points	Validation	Author
Bash Jail 1	1	2418	Mr.Un1k0d3r
Bash Jail 2	2	1531	Mr.Un1k0d3r
Bash Jail 3	3	871	Mr.Un1k0d3r
Bash Jail 4	4	462	Mr.Un1k0d3r
Bash Jail 5	6	203	Mr.Un1k0d3r
Bash Jail 6	8	32	Garigouster
Bash Jail 7	12	17	Garigouster
C Jail 1	1	383	Mr.Un1k0d3r
C Jail 2	2	249	Mr.Un1k0d3r
C Jail 3	3	205	Mr.Un1k0d3r
C Jail 4	5	22	Garigouster
C Jail 5	7	15	Garigouster
C Jail 6	14	10	Garigouster
PHP Jail 1	1	574	Mr.Un1k0d3r
PHP Jail 2	2	381	Mr.Un1k0d3r
PHP Jail 3	3	269	Mr.Un1k0d3r
PHP Jail 4	4	210	Mr.Un1k0d3r
PHP Jail 5	6	176	Mr.Un1k0d3r
PyJail 1	3	248	Martin Dube
PyJail 2	5	133	Martin Dube
PyJail 3	6	46	Martin Dube

JavaScript (10)

Challenges descriptions	Points	Validation	Author
Client side validation is bad!	1	7149	Mr.Un1k0d3r
Hashing is more secure	1	6193	Mr.Un1k0d3r
Then obfuscation is more secure	1	4737	Mr.Un1k0d3r
Why not?	2	3625	Mr.Un1k0d3r
Valid key required	2	951	Francois Lajeunesse
Most Secure Crypto Algo	2	1717	Mr.Un1k0d3r
Why not be more secure?	5	588	Mr.Un1k0d3r
WTF Lol!	6	277	HoLyVieR
Interstellar PhoneBook	6	40	NSEC 2018 (HoLyVieR)
Beauty and the beast	7	41	Mr.Un1k0d3r

Malware Analysis (22)

Challenges descriptions	Points	Validation	Author
APT 1337	4	50	NSEC 2017 (Mr.Un1k0d3r)
Capture 1 Part 1	1	677	Mr.Un1k0d3r
Capture 1 Part 2	1	227	Mr.Un1k0d3r
Capture 1 Part 3	1	251	Mr.Un1k0d3r
Capture 1 Part 4	2	39	Mr.Un1k0d3r
Capture 1 Part 5	3	64	Mr.Un1k0d3r
Capture 1 Part 6	3	158	Mr.Un1k0d3r
Capture 1 Part 7	3	34	Mr.Un1k0d3r
Capture 2 Part 1	1	64	Mr.Un1k0d3r
Capture 2 Part 2	1	120	Mr.Un1k0d3r
Capture 2 Part 3	1	121	Mr.Un1k0d3r
Capture 2 Part 4	3	118	Mr.Un1k0d3r
Capture 2 Part 5	4	43	Mr.Un1k0d3r
Capture 2 Part 6	7	20	Mr.Un1k0d3r
Evil X	8	7	cyberguru
Just Another MBR Ransomware	8	20	Towel
RAO democracy	4	59	NSEC 2017 (Mr.Un1k0d3r)
This malware excels Part 1	2	38	HF 2020 (nic-lovin)
This malware excels Part 2	1	38	HF 2020 (nic-lovin)
This malware excels Part 3	2	25	HF 2020 (nic-lovin)
This malware excels Part 4	5	17	HF 2020 (nic-lovin)
WebShell of Hell	5	19	An0n

NorthSec 2021 (8)

Challenges descriptions	Points	Validation	Author
Crapto Century	3	36	NSEC 2021 (davidlebr1)
Farmer Search (1/3)	3	34	NSEC 2021 (mbergeron)
Farmer Search (2/3)	2	28	NSEC 2021 (mbergeron)
Farmer Search (3/3)	4	21	NSEC 2021 (mbergeron)
Knight Portal (1/3)	2	70	NSEC 2021 (mbergeron)
Knight Portal (2/3)	2	56	NSEC 2021 (mbergeron)
Knight Portal (3/3)	5	25	NSEC 2021 (mbergeron)
Reading Through the Cloud	4	34	NSEC 2021 (davidlebr1)

NorthSec 2023 (18)

Challenges descriptions	Points	Validation	Author
Ask G.O.D (01/18)	3	7	mbergeron
Ask G.O.D (02/18)	1	5	mbergeron
Ask G.O.D (03/18)	2	5	mbergeron
Ask G.O.D (04/18)	5	5	mbergeron
Ask G.O.D (05/18)	3	4	mbergeron
Ask G.O.D (06/18)	1	10	mbergeron
Ask G.O.D (07/18)	1	10	mbergeron
Ask G.O.D (08/18)	3	3	mbergeron
Ask G.O.D (09/18)	7	2	mbergeron
Ask G.O.D (10/18)	2	8	mbergeron
Ask G.O.D (11/18)	2	8	mbergeron
Ask G.O.D (12/18)	2	8	mbergeron
Ask G.O.D (13/18)	1	10	mbergeron
Ask G.O.D (14/18)	2	7	mbergeron
Ask G.O.D (15/18)	1	10	mbergeron
Ask G.O.D (16/18)	2	3	mbergeron
Ask G.O.D (17/18)	2	3	mbergeron
Ask G.O.D (18/18)	2	3	mbergeron

Pwnage Linux (21)

Challenges descriptions	Points	Validation	Author
Level1 Pwnage Linux Level Up	1	704	P-Y Feat Martin Dube
Level2 Pwnage Linux Level Up	2	430	P-Y Feat Martin Dube
Remote Auth	2	113	NSEC 2015
Level3 Pwnage Linux Level Up	3	306	P-Y Feat Martin Dube
The Vault	3	60	Mr.Un1k0d3r
Level1 Pwnage Linux x86_64	3	208	Mr.Un1k0d3r
Can you get the service password	4	124	Mr.Un1k0d3r remade by sagefault
Sometime there is no buffer overflow	4	78	Mr.Un1k0d3r remade by GuilT
Level2 Pwnage Linux x86_64	4	72	Mr.Un1k0d3r
Friendly race	5	28	Garigouster
Level4 Pwnage Linux Level Up	5	143	Mr.Un1k0d3r
RPCFTW!	6	38	NSEC 2015
Jack the heaper	6	24	uaf.io
Level4 Pwnage Linux x86_64	7	44	Mr.Un1k0d3r
Level3 Pwnage Linux x86_64	7	70	Mr.Un1k0d3r
Just another useless service	8	40	NSEC 2015
Take over the Virtual World	8	37	NSEC 2015
Base64 As A Service	8	35	Guilt
All You Need Is a Client	8	14	Mr.Un1k0d3r (Trustwave CTF 2020)
Base64 As A Service Reloaded	9	29	Guilt
Delivery As A Service	10	19	NSEC 2016

Reverse Engineering (56)

Challenges descriptions	Points	Validation	Author
Time to learn x86 ASM & gdb	2	2184	Mr.Un1k0d3r
See No Evil - Part 1	2	169	alxbl
Can you see through the star	2	1317	Mr.Un1k0d3r
Gift as a Service Part 2	2	49	H0H0H0 Day (R0 team)
See No Evil - Part 2	3	123	alxbl
See No Evil - Part 3	3	117	alxbl
Intro To Sparc	3	200	Ian-Kyle Wagner
Kernel introduction	3	277	Mr.Un1k0d3r
Heap allocator	3	294	NSEC 2015
Crack Me 1	3	794	Mr.Un1k0d3r
Introduction to MIPS	3	339	Mr.Un1k0d3r
I never forget the Nintendo 64	3	671	Mr.Un1k0d3r
Windows x86 reversing is cool	3	741	Mr.Un1k0d3r
Old School	4	91	Towel
Power to the people	4	76	NSEC 2015
Let's take a detour	4	103	Floesen
Altera?	4	77	NSEC 2016
ASM Lovers	4	98	NSEC 2016
Wrong byte!	4	287	Mr.Un1k0d3r
See No Evil - Part 4	4	89	alxbl
See No Evil - Part 5	4	83	alxbl
I love tea!	4	36	nic-lovin
Space Invaders	4	26	Trustwave CTF 2020
Introduction to ARM	4	369	Mr.Un1k0d3r
Windows API for the win	4	353	Mr.Un1k0d3r
WASM Part 1	5	76	NSEC 2018 (Isra17)
The MI7 password prompt	5	76	NSEC 2018 (Mr.Un1k0d3r)
Phenix Golgoth	5	60	Hackfest 2016
Can I speak with the kernel?	5	92	Zerosum0x0
Reindeer Game	5	15	H0H0H0 Day 2020 (Towel)
Back to our roots	5	124	Mr.Un1k0d3r
Virtual World	5	86	NSEC 2015
Smart enough?	5	126	NSEC 2015
Pwndr3 Authenticator	5	69	Pwndr3
RingZer0 Authenticator	5	249	Ekse
Need a client	6	78	Mr.Un1k0d3r
I Think I forgot to take out the garbage!	6	29	Mr.Un1k0d3r
Flag stealer	6	84	Ekse
Update Manager	6	67	Ekse
Buggy Bunny	7	15	Garigouster
Cappin'	7	4	Mr.Un1k0d3r (Trustwave CTF 2020)
The supreme bash	7	28	NSEC 2017 (Mr.Un1k0d3r)
Armed and ready	7	26	NSEC 2015
SOS Lib	7	38	Mr.Un1k0d3r
You're not welcome	8	56	Towel
WASM Part 2	8	10	NSEC 2018 (Isra17)
License to kill	8	5	Mr.Un1k0d3r
Rebate As A Service	8	47	NSEC 2016
The Matrix	9	14	Towel
Keygen time again	10	34	GoSec CTF 2014
Trolling the troll	10	33	Mr.Un1k0d3r
The unknown challenge	11	17	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	12	NSEC 2018 (Towel)

Shellcoding (7)

Challenges descriptions	Points	Validation	Author
Basics of Linux x64 shellcoding	2	538	Mr.Un1k0d3r
Linux x64 shellcoding level 2	4	272	Mr.Un1k0d3r
Linux x64 shellcoding level 3	6	213	Mr.Un1k0d3r
Linux x64 shellcoding level 4	8	170	Mr.Un1k0d3r
Linux x64 shellcoding level 5	10	121	Mr.Un1k0d3r
Linux x64 shellcoding level 6	12	105	Mr.Un1k0d3r
Linux x64 shellcoding level 7	14	62	Mr.Un1k0d3r

Software Defined Radio (5)

Challenges descriptions	Points	Validation	Author
SigID Level 1	1	1013	Guenael
You Turn Me On And Off	3	20	Trustwave CTF 2020
Let's Get Scwhifty!	5	17	Trustwave CTF 2020
SigID Level 2	6	13	Guenael
Don't flip out, Thomas!	7	16	Trustwave CTF 2020

SQL Injection (32)

Challenges descriptions	Points	Validation	Author
Most basic SQLi pattern.	1	9695	Mr.Un1k0d3r
ACL rulezzz the world.	2	4691	Mart
Login portal 1	2	3635	Mr.Un1k0d3r
Random Login Form	2	2152	Mr.Un1k0d3r
Po po po po postgresql	2	2244	Mr.Un1k0d3r
Login portal 2	3	822	Mr.Un1k0d3r
0 Day Store	3	147	NSEC 2015
Don't mess with Noemie; she hates admin!	3	960	Mr.Un1k0d3r
What's the definition of NULL	3	804	Mr.Un1k0d3r
Quote of the day	4	675	Mr.Un1k0d3r
No more hacking for me!	4	355	Mr.Un1k0d3r
Thinking outside the box is the key	4	562	Mr.Un1k0d3r
Don't Stumble in the Process	4	68	mbergeron
Brain Teaser 1	4	33	Sideni
Quote of the day reloaded	5	266	Mr.Un1k0d3r
When it's lite it's not necessarily easy	6	239	Mr.Un1k0d3r
Login portal 3	6	272	Mr.Un1k0d3r
Hot Single Mom	6	188	GoSec CTF 2014
Brain Teaser 2	7	16	Sideni
Internet As A Service	7	135	Mr.Un1k0d3r
Size DOES matter	7	148	Mr.Un1k0d3r
/etc/passwd	7	162	Mr.Un1k0d3r
Groups of hacker	7	166	Mr.Un1k0d3r
Login portal 4	7	163	Mr.Un1k0d3r
The useless search tool	8	127	Mr.Un1k0d3r
Login portal 5	8	76	Mr.Un1k0d3r
stackoverflow.com lied to me... again	9	86	Corb3nik
Doctor Who ?	9	11	Sideni
Login portal 6	10	64	Mr.Un1k0d3r
SQHell	11	15	Sideni feat. mbergeron
Don't Stumble in the Process Reloaded	12	9	mbergeron
!Mysql + Brain fart	13	34	Mr.Un1k0d3r

Steganography (25)

Challenges descriptions	Points	Validation	Author
Victor you're hidding me something	1	2686	Cedrick Chaput
You're lost? Use the map	1	1845	Mr.Un1k0d3r
Look inside the house	2	1112	Mr.Un1k0d3r
A ghost sound	2	890	Cedrick Chaput
Victor reloaded	2	1127	Cedrick Chaput
The Sloth	2	151	Misker
Brainsick	2	905	Mr.Un1k0d3r
Missing Pieces	2	798	Cedrick Chaput
Hidden In Plain Sight	2	679	NSEC 2015
Pixel Everywhere	2	177	Mr.Un1k0d3r
The vestige of dial-up Internet	2	186	Uid0
I'm Goronyo Babad Nigerian prince	2	576	Mr.Un1k0d3r
5 beautiful colors	3	51	PublicName
Crazy Cat Lady	3	97	Madness
Love Letter	3	237	Towel
Can you see through the matrix!	3	149	Mr.Un1k0d3r
Your old friend Orloge Simard	3	597	Cedrick Chaput
Can you see through the matrix reloaded!	4	29	Towel
Stay Classy!	4	18	Sideni
Not just 64	4	16	Madness
Even the Odds	4	18	alxbl
Walk the line!	5	158	Cedrick Chaput
Stop the violence	5	19	jusb3
Stop the violence 2	5	7	jusb3
Hidden out of sight	5	10	cyberguru

SysAdmin Linux (8)

Challenges descriptions	Points	Validation	Author
SysAdmin Part 1	1	2643	Cedrick Chaput
SysAdmin Part 2	1	1922	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 3	1	1233	Mr.Un1k0d3r
SysAdmin Part 4	2	1143	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 5	2	748	Cedrick Feat Mr.Un1k0d3r
SysAdmin Part 6	3	702	Cedrick Chaput
SysAdmin Part 7	4	569	Cedrick Chaput
SysAdmin Part 8	4	619	Cedrick Feat Mr.Un1k0d3r

The NC8 Reverse Engineering Track (6)

Challenges descriptions	Points	Validation	Author
NC8 MAINFRAME MANAGEMENT INTERFACE Part 1	7	60	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 1	3	37	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 2	7	34	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 2 Flag 3	10	34	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 3	5	22	NSEC 2018 (isra17)
NC8 MAINFRAME MANAGEMENT INTERFACE Part 4	15	18	NSEC 2018 (isra17)

Web Warning (52)

Challenges descriptions	Points	Validation	Author
Words mean something?	1	3184	Mr.Un1k0d3r
Big Brother is watching	1	4423	Mr.Un1k0d3r
Hacking skill are optional	1	294	Breached Company
Looking for password file	1	4579	Mr.Un1k0d3r
Area 51	1	2930	Mr.Un1k0d3r
Headache	1	3797	Mr.Un1k0d3r
Security thru obscurity!	2	1062	Mr.Un1k0d3r
PHP Fairy	2	1031	nic-Lovin
XSS Challenge 2	2	541	Mr.Un1k0d3r
XSS Challenge 1	2	548	Mr.Un1k0d3r
Admin Portal	2	1189	Mr.Un1k0d3r
Password reset	2	984	Mr.Un1k0d3r
Malicious upload	2	610	Mr.Un1k0d3r
Captcha I	2	564	SynneR
Unreadable captcha	2	404	SynneR
Password reset reloaded	3	364	Mr.Un1k0d3r
PHP feature or 0day?	3	456	Mr.Un1k0d3r
Serial killer!	3	465	Mr.Un1k0d3r
JWT pitfall 1	3	64	Mr.Un1k0d3r
REST in peace	3	215	GoSec CTF 2014
Captcha IV	3	38	FadedForEver
NeuroSoft: Observation Unit Center	3	59	NSEC 2019 (ldionmarcil)
Beyond Reality Part 1	3	53	NSEC 2019 (ldionmarcil)
XSS Challenge 3	3	211	Mr.Un1k0d3r
XSS Challenge 4	3	218	Mr.Un1k0d3r
Facebook will never forget this one	3	227	Mr.Un1k0d3r
UploadStar	3	48	nopernik
Gift as a Service Part 1	3	57	H0H0H0 Day (R0 team)
Looking for the flag?	3	743	Mr.Un1k0d3r
Captcha III	4	59	mbergeron
Propaganda mail	4	247	NSEC 2015
Captcha II	4	147	SynneR
Read the unreadable	5	118	Mr.Un1k0d3r
Freedom Firewall	5	126	NSEC 2015
Timesheet As a Service	5	36	Mr.Un1k0d3r
Password Reset As a Service	5	61	Mr.Un1k0d3r
UploadStar Reloaded	5	28	nopernik
Super Lottery	5	85	davidlebr1
Beyond Reality Part 2	5	34	NSEC 2019 (ldionmarcil)
The archive	5	25	NSEC 2019 (HoLyVieR)
Lost API	5	38	NSEC 2019 (HoLyVieR)
PHP feature or 0day reloaded?	6	75	Mr.Un1k0d3r
I hate this one	6	227	Mr.Un1k0d3r
XSS Challenge 5	6	135	Mr.Un1k0d3r
Serial killer part 2	6	49	HoLyVieR
Orao's factory	6	119	NSEC 2015
Ping It!	7	33	mnadeau
Super Lottery Reloaded	7	33	davidlebr1 Feat mbergeron
XPATH of hell!	7	139	Francois L. Feat Mr.Un1k0d3r
Secure Mail	8	84	GoSec CTF 2014
Looking for god in your life?	8	65	NSEC 2015
Lotto 8/33	11	8	fishinspace

Flag statistics (192622 submitted so far)

Number of points	Number of validation	Number of points	Number of validation
18 points	12	15 points	18
14 points	72	13 points	51
12 points	157	11 points	49
10 points	331	9 points	199
8 points	1066	7 points	2507
6 points	5107	5 points	5256
4 points	11457	3 points	22816
2 points	62989	1 points	80535

close Intercepting SSL Traffic on RingZer0ctf.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.