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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 1222 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 - 48256 players

Position Username Points Gold Last Validation Special Mention
sagefault
1733 168 2023-10-13 17:12:23
jusb3
1718 5 2023-11-23 05:54:04
dysleixa
1525 79 2023-08-16 21:31:25
4
Corb3nik
1437 2 2022-03-12 18:34:33
5
Sideni
1380 1 2022-07-17 21:39:25
6
Towel
1272 677 2022-11-30 08:23:05
7
Freddrickk
1242 17 2020-10-30 00:02:53
8
mbergeron
1218 196 2022-02-14 12:04:48
9
stamparm
1194 0 2018-09-25 11:21:27
10
acormier
1178 87 2023-09-26 23:36:58
11
cyberguru
1176 0 2022-03-20 15:48:01
12
nic-lovin
1129 2 2024-02-09 17:27:40
13
an0n
1124 6 2017-08-20 17:04:56
14
dinus
1085 2 2023-01-14 19:00:45
15
fob
1068 10 2023-08-03 20:02:34
16
theindian
1064 917 2022-10-27 16:58:17
17
fsharp
1053 4 2023-11-23 23:00:21
18
alxbl
1052 74 2021-01-05 21:30:35
19
yehuju
1047 0 2024-02-01 12:39:43
20
HoLyVieR
1041 97 2022-05-20 18:32:13
21
GuilT
1036 112 2023-11-27 23:13:52
22
allfro
1036 0 2023-11-19 02:16:33
23
fLink
1019 0 2019-11-13 14:37:57
24
errorinside
1012 0 2022-12-20 11:24:46
25
bluedevil
1012 0 2022-12-20 11:20:44
26
killer2
1005 311 2018-10-29 12:29:39
27
V5November
1000 0 2022-10-05 05:17:02
28
Superior
978 0 2023-06-15 05:04:33
29
nopernik
972 66 2023-06-18 18:17:36
30
garigouster
867 780 2017-06-05 09:19:11
31
gdenhez
830 598 2024-02-19 19:12:55
32
fffroze
788 8 2023-05-27 02:31:41
33
snowscan
779 17 2022-10-23 15:17:01
34
lolwut
770 0 2018-01-18 12:58:24
35
destiny
758 4 2020-08-23 17:18:52
36
becojo
750 7 2021-11-11 19:06:39
37
marcS0H
737 1 2021-05-20 17:18:53
38
marcan2020
720 18 2023-02-24 22:07:57
39
MusicLegend98
707 1 2024-02-02 12:34:24
40
minektur
705 175 2023-04-07 18:13:43
41
davidlebr1
703 98 2022-04-03 20:26:13
42
madness
697 567 2022-03-18 14:58:55
43
watchdog
693 58 2021-09-09 16:43:09
44
lixtelnis
690 3 2023-08-27 16:25:09
45
madbat2
659 0 2015-06-15 15:37:39
46
marlo
653 0 2023-11-18 06:28:10
47
Pourliver
648 0 2022-10-20 16:08:38
48
pwndre
642 42 2020-06-05 00:19:47
49
sulliedeclat
638 1 2023-04-24 22:36:50
50
rootkitg
638 0 2023-05-05 03:10:23

Search by username


Latest challenges validations

Last validation Challenge User who solved it
2024-02-25 00:51:59 ACL rulezzz the world. De11machine101
2024-02-25 00:37:24 Most basic SQLi pattern. De11machine101
2024-02-24 23:57:47 I love cat Dotrongtam4321
2024-02-24 19:28:26 Headache ozr
2024-02-24 19:27:22 Area 51 ozr
2024-02-24 19:23:18 Big Brother is watching ozr
2024-02-24 18:36:47 Most basic SQLi pattern. mina_g
2024-02-24 18:20:42 Then obfuscation is more secure ozr
2024-02-24 17:38:23 Hashing is more secure mack0r
2024-02-24 17:35:24 Client side validation is bad! mack0r

The latest write-up with special mention


The latest challenges added

Challenge Points Category
Scammed again 3 NorthSec 2021
The Cabal 2 NorthSec 2021
Stock Options Portal 6 NorthSec 2022
Corporate Cafeteria Menu 6 NorthSec 2023
We Call it Spring (4/4) 2 NorthSec 2023


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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