Switch to lite version Switch to dark theme

RingZer0 Team Online CTF

RingZer0 Team's online CTF offers you tons of challenges designed to test and improve your hacking skills through hacking challenges. Register and get a flag for every challenge.



I started this website in 2014 hosting everything in my garage (Picture here). If you like the website you can support us by making a donation. With those donations it will be possible to buy modern hardware and add new great stuff on the website that required more resources. You can find the list of users that contributed here.



The RingZer0 Team Online CTF is now proudly hosted using Claranet FR cloud service.

Chat / Questions / Help

You'll find all what you need in the Discord Server.

Join the Discord now!

Challenges

Currently more than 300 challenges are available over 15 categories. Have fun resolving them.

View challenges »

Register

Your first time here? First step register an account, that way you will be able to login and start solving challenges.

Register »


Want to become certified RCEH?

Super simple get at least 1000 points and you will receive your official badge and certification. The RingZer0 Certified Elite Hacker (RCEH) certification is a highly technical certification. Anyone holding the RCEH title is a highly skilled hacker.

Once you get your RCEH title you can proudly use the certified logo and show to the rest of the world that you successfully managed to solve several hacking challenges on the RingZer0 CTF.


Scoreboard - 40845 players

Position Username Points Gold Last Validation Special Mention
101
xaav
391 45 2021-11-12 04:22:56
102
sambecks
391 22 2016-05-05 12:02:20
103
markmark
391 0 2018-04-23 20:31:44
104
capsl
391 0 2016-02-14 18:48:16
105
ramza500
390 19 2018-05-27 00:27:46
106
mikejam
390 0 2020-10-21 11:23:58
107
pylessard
388 15 2017-01-14 02:01:38
108
yayctf
388 0 2018-08-15 22:49:20
109
flash2307
385 0 2022-01-18 21:44:34
110
Decay
384 11 2019-05-11 19:55:20
111
kasia-tutej
384 10 2020-09-11 11:24:59
112
falcon
384 0 2019-12-05 04:22:34
113
zerosum0x0
377 0 2020-02-05 20:05:26
114
Mister_Bert0ni
375 0 2017-06-24 15:54:59
115
techr0n
374 13 2019-01-27 05:14:40
116
uaf.io
371 8 2017-03-14 01:40:03
117
andreaf83
370 113 2018-03-05 16:57:35
118
ekse
367 7 2020-03-07 15:43:36
119
Fox1337
367 6 2020-07-30 22:09:11
120
0xFF1E071F
364 0 2021-12-03 02:40:35
121
div
363 0 2022-01-14 19:10:18
122
freak_out
363 0 2017-12-16 16:40:51
123
Akorlith
361 0 2019-10-17 23:23:33
124
mnadeau
359 1 2021-08-19 15:41:23
125
tanovich
358 1 2018-10-06 12:53:14
126
noble
356 0 2022-01-18 10:53:08
127
hsp
354 28 2020-12-06 17:21:23
128
Felis-Sapiens
353 0 2016-10-07 07:18:23
129
bluerng
350 1 2018-04-18 06:41:41
130
Cyberslash17
349 10 2021-06-18 22:20:01
131
stefano118
349 1 2019-04-27 21:31:10
132
twado
345 100 2022-01-16 15:15:44
133
_Unkn0wn_
343 9 2017-08-28 13:14:18
134
kensalt
340 0 2021-04-30 15:17:27
135
Fooker
337 2 2018-04-27 16:40:49
136
jeromeS
334 2 2020-12-06 22:16:35
137
dank23
334 1 2020-03-25 01:14:26
138
wiz3kid
333 10 2021-12-13 22:38:10
139
fatihender
332 118 2017-08-22 05:26:58
140
wszostak
328 0 2022-01-21 13:53:06
141
arthepsy
328 0 2017-11-15 17:26:50
142
benjamin6A
327 0 2020-02-08 01:49:44
143
HPx
325 2 2015-03-05 16:20:00
144
TyrannoKing
322 10 2015-07-20 00:13:07
145
rebe11ion
322 0 2019-05-17 23:43:13
146
privat
319 18 2021-06-02 21:34:33
147
nitbx
319 1 2019-01-30 01:54:01
148
baklava
319 0 2020-08-18 20:07:09
149
gsdt
316 2 2019-11-02 00:11:43
150
ts
314 0 2016-04-15 08:47:00

Search by username


Latest challenges validations

Last validation Challenge User who solved it
2022-01-21 18:11:20 Big Brother is watching salidibirov
2022-01-21 16:23:35 Hashing is more secure hackprosseto
2022-01-21 16:17:03 Client side validation is bad! hackprosseto
2022-01-21 13:53:06 DON'T login as admin wszostak
2022-01-21 13:43:54 Beyond Reality Part 1 klammydia
2022-01-21 13:41:13 Hashing is more secure gingerpi
2022-01-21 13:36:19 Client side validation is bad! gingerpi
2022-01-21 13:34:05 Just another login form wszostak
2022-01-21 13:21:47 You're Drunk! gingerpi
2022-01-21 12:59:40 Then obfuscation is more secure kopijos

The latest write-up with special mention


The latest challenges added

Challenge Points Category
Evil X 8 Malware Analysis
Reindeer Game 5 Reverse Engineering
Gift as a Service Part 2 2 Reverse Engineering
Gift as a Service Part 1 3 Web
Find your path 9 Cryptography


I started this website in 2014 hosting everything in my garage. If you like the website you can support us by making a donation. With those donations it will be possible to buy modern hardware and add new great stuff on the website that required more resources. You can find the list of users that contributed here.


top