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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 1288 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 - 52512 players

Position Username Points Gold Last Validation Special Mention
15201
mr07
3 0 2021-03-24 01:44:22
15202
courtneyw761
3 0 2021-03-22 17:41:42
15203
open-schnick
3 0 2021-03-22 13:34:51
15204
Graugeux
3 0 2021-03-22 13:34:40
15205
qvalentin
3 0 2021-03-22 13:34:37
15206
cissy
3 0 2021-03-20 05:26:10
15207
ava3a13
3 0 2021-03-18 18:06:13
15208
LifeLess
3 0 2021-03-13 11:12:05
15209
nslookup
3 0 2021-03-12 21:29:24
15210
Delight
3 0 2021-03-10 20:52:20
15211
Phaedra123
3 0 2021-03-10 15:28:15
15212
chenx3n
3 0 2021-03-08 17:56:11
15213
rubEas
3 0 2021-03-03 13:03:47
15214
botallu
3 0 2021-02-25 23:14:30
15215
tharnendil
3 0 2021-02-25 13:48:31
15216
CnADoH
3 0 2021-02-22 14:45:27
15217
StownCraft
3 0 2021-02-16 09:24:35
15218
Quail
3 0 2021-02-12 18:19:14
15219
lws
3 0 2021-02-09 07:42:54
15220
anonasd
3 0 2021-02-04 14:01:50
15221
mmad
3 0 2021-02-02 08:53:50
15222
SubZero2
3 0 2021-01-30 11:32:26
15223
Darkjl
3 0 2021-01-30 05:58:08
15224
adrian2117
3 0 2021-01-26 02:11:32
15225
crackleflea
3 0 2021-01-17 08:47:38
15226
mandranela17
3 0 2021-01-15 12:20:39
15227
youssefby
3 0 2021-01-14 15:09:36
15228
martire
3 0 2021-01-12 16:56:57
15229
SlowFox
3 0 2021-01-03 16:18:58
15230
alexv
3 0 2021-01-03 09:31:00
15231
Zeron
3 0 2020-12-28 06:36:03
15232
Birmun
3 0 2020-12-26 18:25:45
15233
aminelajili
3 0 2020-12-25 16:35:22
15234
zroot
3 0 2020-12-21 13:26:48
15235
rootrix
3 0 2020-12-18 14:38:22
15236
n1c3gu7
3 0 2020-12-17 05:53:10
15237
alfaraw
3 0 2020-12-17 02:27:52
15238
agbdtema7
3 0 2020-12-14 20:02:17
15239
fernando000005
3 0 2020-12-14 19:51:35
15240
D4ark_Kn1ght
3 0 2020-12-11 12:50:47
15241
lovishprajapati
3 0 2020-12-08 08:27:36
15242
Badshah
3 0 2020-12-08 00:36:06
15243
sylih
3 0 2020-12-06 08:54:02
15244
mattatrmc
3 0 2020-12-06 08:52:07
15245
krokoDial
3 0 2020-12-05 11:03:17
15246
zoobah
3 0 2020-12-03 12:07:45
15247
Wepeel
3 0 2020-12-03 04:23:06
15248
akateko
3 0 2020-12-01 13:03:43
15249
shibu
3 0 2020-12-01 07:08:25
15250
ThePlague87
3 0 2020-11-29 10:47:09

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Latest challenges validations

Last validation Challenge User who solved it
2025-08-18 09:13:35 Inspiration bluedevil
2025-08-18 02:52:46 Security thru obscurity! adce626
2025-08-18 02:42:46 Headache adce626
2025-08-18 02:33:43 Client side validation is bad! adce626
2025-08-18 02:25:13 Area 51 adce626
2025-08-18 02:09:25 Looking for password file adce626
2025-08-17 16:18:09 XPATH of hell! transcept
2025-08-17 15:21:51 PHP feature or 0day reloaded? transcept
2025-08-17 13:16:59 This malware excels Part 2 gdenhez
2025-08-17 11:07:50 Can you see through the star Wysi

The latest write-up with special mention


The latest challenges added



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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