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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 - 40845 players

Position Username Points Gold Last Validation Special Mention
sagefault
1542 161 2021-08-27 21:12:17
jusb3
1484 1 2021-10-11 09:30:03
Corb3nik
1435 2 2021-05-09 19:22:03
4
Freddrickk
1244 17 2020-10-30 00:02:53
5
dysleixa
1242 29 2021-08-29 00:12:10
6
Towel
1234 684 2022-01-19 22:16:45
7
mbergeron
1216 210 2021-02-11 14:38:20
8
stamparm
1201 0 2018-09-25 11:21:27
9
cyberguru
1168 11 2021-07-16 04:01:39
10
Sideni
1162 4 2021-11-05 16:09:25
11
an0n
1129 11 2017-08-20 17:04:56
12
nic-lovin
1090 8 2021-10-20 00:02:27
13
acormier
1089 87 2021-01-13 16:35:19
14
dinus
1085 4 2021-01-16 11:09:32
15
alxbl
1052 74 2021-01-05 21:30:35
16
HoLyVieR
1047 97 2020-02-03 13:51:17
17
GuilT
1028 114 2021-12-31 00:06:42
18
fLink
1018 2 2019-11-13 14:37:57
19
allfro
1010 0 2021-04-07 21:13:55
20
killer2
1005 311 2018-10-29 12:29:39
21
fob
1001 10 2022-01-06 22:37:58
22
yehuju
995 0 2021-12-03 00:48:25
23
theindian
987 858 2022-01-15 21:49:44
24
errorinside
949 0 2021-12-03 02:40:28
25
nopernik
940 105 2022-01-12 07:46:22
26
garigouster
872 791 2017-06-05 09:19:11
27
V5November
824 0 2021-08-27 12:06:27
28
fffroze
784 8 2020-12-23 03:10:47
29
snowscan
778 17 2020-06-09 21:51:44
30
lolwut
777 0 2018-01-18 12:58:24
31
destiny
758 4 2020-08-23 17:18:52
32
becojo
755 7 2021-11-11 19:06:39
33
marcS0H
737 1 2021-05-20 17:18:53
34
marcan2020
697 18 2022-01-20 16:02:57
35
watchdog
693 58 2021-09-09 16:43:09
36
madness
689 574 2021-06-10 16:19:02
37
davidlebr1
689 105 2020-12-05 18:24:14
38
madbat2
665 0 2015-06-15 15:37:39
39
pwndre
643 42 2020-06-05 00:19:47
40
marlo
643 0 2020-09-24 01:21:59
41
minektur
641 175 2022-01-16 18:40:14
42
turksec
639 8 2017-01-31 06:56:54
43
Pourliver
639 0 2021-02-11 18:35:08
44
lixtelnis
637 3 2020-12-06 17:40:18
45
rootkitg
634 0 2020-06-21 20:05:30
46
sulliedeclat
627 1 2021-04-03 21:22:10
47
Kileak
614 26 2021-10-26 04:22:42
48 Agent24-D 607 76 2022-01-10 09:28:05
49
dloser
603 0 2016-05-03 15:48:08
50
Laish
600 191 2021-06-16 19:52:36

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Latest challenges validations

Last validation Challenge User who solved it
2022-01-21 18:11:20 Big Brother is watching salidibirov
2022-01-21 16:23:35 Hashing is more secure hackprosseto
2022-01-21 16:17:03 Client side validation is bad! hackprosseto
2022-01-21 13:53:06 DON'T login as admin wszostak
2022-01-21 13:43:54 Beyond Reality Part 1 klammydia
2022-01-21 13:41:13 Hashing is more secure gingerpi
2022-01-21 13:36:19 Client side validation is bad! gingerpi
2022-01-21 13:34:05 Just another login form wszostak
2022-01-21 13:21:47 You're Drunk! gingerpi
2022-01-21 12:59:40 Then obfuscation is more secure kopijos

The latest write-up with special mention


The latest challenges added

Challenge Points Category
Evil X 8 Malware Analysis
Reindeer Game 5 Reverse Engineering
Gift as a Service Part 2 2 Reverse Engineering
Gift as a Service Part 1 3 Web
Find your path 9 Cryptography


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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