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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 70% of the total points (which is 1234 points at the moment). With this certification, you will be able to buy a RCEH token that will be available on the shop. 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 - 50736 players

Position Username Points Gold Last Validation Special Mention
101
SaxX
444 14 2016-02-25 12:01:04
102
MtucX
442 1 2019-03-27 14:51:50
103
salt
435 250 2019-03-24 01:07:08
104
xaav
434 55 2023-07-17 07:39:48
105
Munto
433 0 2024-12-11 10:56:37
106
archervatan
433 0 2023-06-04 06:16:41
107
xyzzy5475
428 328 2019-09-13 13:54:40
108
CyberPi2
428 0 2024-04-17 13:49:44
109
govlog
427 1 2018-04-27 17:33:07
110
solarwind
425 0 2017-07-04 02:41:01
111
Charo
422 0 2017-01-16 00:17:40
112
blablazej
421 0 2022-01-30 19:16:04
113
bipin
420 11 2024-11-23 08:08:33
114
s7dn9y
417 0 2015-05-01 23:27:10
115
Radu
416 1 2021-08-17 02:38:30
116
mantz
415 2 2019-09-30 02:40:59
117
GinTora
412 1 2024-10-18 01:16:25
118
carapas
411 1 2017-11-04 14:38:12
119
love0day
408 0 2017-01-02 00:48:37
120
testing
407 0 2024-01-21 09:01:12
121
tunelko
407 0 2017-04-25 02:46:51
122
flash2307
406 0 2023-09-01 13:25:02
123
div
403 0 2022-02-03 16:24:39
124
mukkul007
401 0 2020-04-22 18:52:09
125
Snider
398 5 2018-07-11 10:45:02
126
mikejam
397 0 2023-03-09 16:10:45
127
ramza500
391 19 2018-05-27 00:27:46
128
markmark
391 0 2018-04-23 20:31:44
129
twado
389 126 2024-06-01 13:31:43
130
capsl
389 0 2016-02-14 18:48:16
131
pylessard
388 15 2017-01-14 02:01:38
132
tanovich
388 1 2024-02-29 13:01:43
133
yayctf
388 0 2018-08-15 22:49:20
134
Decay
387 11 2024-01-15 06:11:13
135
kasia-tutej
384 10 2020-09-11 11:24:59
136
falcon
384 0 2019-12-05 04:22:34
137
sambecks
383 22 2016-05-05 12:02:20
138
techr0n
381 13 2023-10-06 00:38:26
139
dank23
381 1 2023-08-16 02:01:35
140
Fox1337
380 6 2023-03-02 01:02:58
141
noble
379 0 2023-04-06 08:56:06
142
zerosum0x0
375 0 2020-02-05 20:05:26
143
Mister_Bert0ni
375 0 2017-06-24 15:54:59
144
ekse
374 0 2022-04-27 18:52:43
145
wszostak
373 0 2022-02-08 12:39:09
146
andreaf83
370 113 2018-03-05 16:57:35
147
uaf.io
370 8 2017-03-14 01:40:03
148
Akorlith
370 0 2022-07-13 06:48:16
149
0xFF1E071F
368 0 2022-02-27 09:29:38
150
freak_out
362 0 2017-12-16 16:40:51

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Latest challenges validations

Last validation Challenge User who solved it
2024-12-21 09:12:21 Why not? noother
2024-12-21 09:05:24 Login portal 1 noother
2024-12-21 08:49:19 Then obfuscation is more secure noother
2024-12-21 07:39:33 ACL rulezzz the world. noother
2024-12-21 06:59:49 Hash me please bhavya23
2024-12-21 00:59:12 Client side validation is bad! SevenReborn
2024-12-20 18:15:49 Hash me please bart1029
2024-12-20 17:34:55 Can you see through the star blnt
2024-12-20 16:46:43 Words mean something? McDo
2024-12-20 16:33:29 Time to learn x86 ASM & gdb Parleyboy

The latest write-up with special mention


The latest challenges added

Challenge Points Category
Photographic Memory System (2/2) 3 NorthSec 2024
Photographic Memory System (1/2) 3 NorthSec 2024
Linguistic Memory System 5 NorthSec 2024
Anti-Allergens Immune System 4 NorthSec 2024
Appendix System 2 NorthSec 2024


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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