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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 - 36148 players

Position Username Points Gold Last Validation Special Mention
101
falcon
384 0 2019-12-05 04:22:34
102
zerosum0x0
377 0 2020-02-05 20:05:26
103
chl0r
377 0 2019-06-14 11:18:20
104
Mister_Bert0ni
375 0 2017-06-24 15:54:59
105
techr0n
374 13 2019-01-27 05:14:40
106
kasia-tutej
373 10 2019-10-04 14:40:49
107
uaf.io
371 8 2017-03-14 01:40:03
108
andreaf83
370 113 2018-03-05 16:57:35
109
ekse
367 7 2020-03-07 15:43:36
110
Fox1337
367 6 2020-07-30 22:09:11
111
freak_out
363 0 2017-12-16 16:40:51
112
Akorlith
361 0 2019-10-17 23:23:33
113
tanovich
358 1 2018-10-06 12:53:14
114
mnadeau
357 1 2020-05-22 15:18:56
115
Felis-Sapiens
353 0 2016-10-07 07:18:23
116
hsp
352 28 2020-03-05 12:42:04
117
bluerng
350 1 2018-04-18 06:41:41
118
stefano118
349 1 2019-04-27 21:31:10
119
_Unkn0wn_
343 9 2017-08-28 13:14:18
120
div
340 0 2019-04-15 17:01:50
121
Fooker
337 2 2018-04-27 16:40:49
122
dank23
334 1 2020-03-25 01:14:26
123
fatihender
332 118 2017-08-22 05:26:58
124
noble
328 0 2020-05-21 17:11:42
125
arthepsy
328 0 2017-11-15 17:26:50
126
wiz3kid
327 10 2019-06-01 12:31:28
127
benjamin6A
327 0 2020-02-08 01:49:44
128
HPx
325 2 2015-03-05 16:20:00
129
TyrannoKing
322 10 2015-07-20 00:13:07
130
rebe11ion
322 0 2019-05-17 23:43:13
131
nitbx
319 1 2019-01-30 01:54:01
132
gsdt
316 2 2019-11-02 00:11:43
133
wszostak
314 0 2020-03-18 18:33:45
134
ts
314 0 2016-04-15 08:47:00
135
christrc
311 13 2018-08-04 12:37:18
136
d4sher
310 1 2017-11-14 04:23:07
137
colonelzombie
309 0 2018-06-12 02:37:28
138
kichung
308 0 2018-05-18 12:13:44
139
hugbed
307 91 2017-11-04 23:57:06
140
zM_
307 6 2019-06-30 09:43:34
141
jeromeS
307 2 2020-06-01 00:37:58
142
funny_guy
306 2 2020-03-04 07:38:51
143
slothy
303 1 2017-11-13 22:47:03
144 Agent24-D 299 64 2020-08-08 23:44:08
145
privat
297 18 2020-05-30 02:10:52
146
whoisme
297 0 2020-04-10 13:03:48
147
ifftq2016
296 10 2019-02-25 08:12:25
148
fclout
294 59 2015-06-13 23:20:09
149
xehos
294 0 2020-06-25 22:04:08
150
OKOB
292 0 2019-11-21 17:29:33

Search by username


Latest challenges validations

Last validation Challenge User who solved it
2020-08-09 06:39:21 ACL rulezzz the world. bugerr0rjubjub
2020-08-09 06:15:39 Hashing is more secure bugerr0rjubjub
2020-08-09 06:05:51 File recovery bugerr0rjubjub
2020-08-09 04:50:44 Martian message part 2 hwood
2020-08-09 04:45:26 Some martian message hwood
2020-08-09 01:48:30 Then obfuscation is more secure GR4Ytxx008
2020-08-09 01:13:38 Hashing is more secure GR4Ytxx008
2020-08-09 00:57:06 Client side validation is bad! GR4Ytxx008
2020-08-09 00:42:25 The Vault fob
2020-08-09 00:05:58 Basics of Linux x64 shellcoding ubik

The latest write-up with special mention


The latest challenges added

Challenge Points Category
Beyond Reality Part 2 5 Web
Beyond Reality Part 1 3 Web
NeuroSoft: Observation Unit Center 3 Web
The Vault 3 Pwnage Linux
Captcha IV 3 Web


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.


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