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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.



The RingZer0 Team Online CTF is now proudly hosted by NorthSec.

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 - 42463 players

Position Username Points Gold Last Validation Special Mention
101
tunelko
407 0 2017-04-25 02:46:51
102
flash2307
403 0 2022-06-24 00:52:40
103
div
403 0 2022-02-03 16:24:39
104
mukkul007
401 0 2020-04-22 18:52:09
105
Snider
398 5 2018-07-11 10:45:02
106
xaav
391 45 2021-11-12 04:22:56
107
ramza500
391 19 2018-05-27 00:27:46
108
markmark
391 0 2018-04-23 20:31:44
109
mikejam
390 0 2020-10-21 11:23:58
110
GinTora
389 1 2022-05-15 00:12:54
111
capsl
389 0 2016-02-14 18:48:16
112
pylessard
388 15 2017-01-14 02:01:38
113
yayctf
388 0 2018-08-15 22:49:20
114
Decay
384 11 2019-05-11 19:55:20
115
kasia-tutej
384 10 2020-09-11 11:24:59
116
falcon
384 0 2019-12-05 04:22:34
117
sambecks
383 22 2016-05-05 12:02:20
118
zerosum0x0
375 0 2020-02-05 20:05:26
119
Mister_Bert0ni
375 0 2017-06-24 15:54:59
120
techr0n
374 13 2019-01-27 05:14:40
121
ekse
374 0 2022-04-27 18:52:43
122
wszostak
373 0 2022-02-08 12:39:09
123
andreaf83
370 113 2018-03-05 16:57:35
124
uaf.io
370 8 2017-03-14 01:40:03
125
twado
369 119 2022-05-23 23:13:23
126
0xFF1E071F
368 0 2022-02-27 09:29:38
127
Fox1337
367 6 2020-07-30 22:09:11
128
noble
363 0 2022-05-27 13:01:44
129
freak_out
362 0 2017-12-16 16:40:51
130
Akorlith
361 0 2019-10-17 23:23:33
131
mnadeau
359 1 2021-08-19 15:41:23
132
Cyberslash17
358 7 2022-03-19 17:37:36
133
tanovich
358 1 2018-10-06 12:53:14
134
Felis-Sapiens
354 0 2016-10-07 07:18:23
135
stefano118
349 1 2019-04-27 21:31:10
136
bluerng
349 1 2018-04-18 06:41:41
137
jeromeS
344 2 2022-05-29 21:01:14
138
_Unkn0wn_
343 9 2017-08-28 13:14:18
139
kensalt
340 0 2021-04-30 15:17:27
140
Fooker
334 2 2018-04-27 16:40:49
141
dank23
334 1 2020-03-25 01:14:26
142
wiz3kid
333 10 2021-12-13 22:38:10
143
fatihender
330 118 2017-08-22 05:26:58
144
benjamin6A
327 0 2020-02-08 01:49:44
145
arthepsy
326 0 2017-11-15 17:26:50
146
HPx
324 2 2015-03-05 16:20:00
147
rebe11ion
322 0 2019-05-17 23:43:13
148
TyrannoKing
321 10 2015-07-20 00:13:07
149
nitbx
319 1 2019-01-30 01:54:01
150
baklava
319 0 2020-08-18 20:07:09

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Latest challenges validations

Last validation Challenge User who solved it
2022-07-05 00:49:10 Valid key required TheMilkMan
2022-07-05 00:48:58 Valid key required samgjones
2022-07-04 23:54:40 Headache puls3
2022-07-04 23:53:14 Looking for password file puls3
2022-07-04 23:52:20 Big Brother is watching puls3
2022-07-04 23:49:37 Words mean something? puls3
2022-07-04 23:38:40 Bash Jail 5 puls3
2022-07-04 23:38:23 Bash Jail 4 puls3
2022-07-04 23:02:20 Hashing is more secure hirntod
2022-07-04 23:01:13 Client side validation is bad! hirntod

The latest write-up with special mention


The latest challenges added

Challenge Points Category
Farmer Search (3/3) 4 NSEC 2021
Farmer Search (2/3) 2 NSEC 2021
Farmer Search (1/3) 3 NSEC 2021
Reading Through the Cloud 4 NSEC 2021
Crapto Century 3 NSEC 2021


Charles F. Hamilton started RingZer0 website in 2014 by hosting everything in his own garage (Picture here). You can find the list of users that contributed over the years here.


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