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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 - 39377 players

Position Username Points Gold Last Validation Special Mention
sagefault
1480 146 2021-01-21 20:43:34
jusb3
1456 1 2021-02-19 10:41:33
Corb3nik
1435 2 2021-05-09 19:22:03
4
Freddrickk
1244 17 2020-10-30 00:02:53
5
Towel
1231 684 2021-01-10 20:44:27
6
mbergeron
1216 210 2021-02-11 14:38:20
7
dysleixa
1204 28 2021-04-25 22:53:38
8
stamparm
1201 0 2018-09-25 11:21:27
9
cyberguru
1164 11 2021-04-27 12:57:27
10
an0n
1129 11 2017-08-20 17:04:56
11
acormier
1089 87 2021-01-13 16:35:19
12
nic-lovin
1086 8 2020-12-26 14:23:23
13
dinus
1085 4 2021-01-16 11:09:32
14
alxbl
1052 74 2021-01-05 21:30:35
15
HoLyVieR
1047 97 2020-02-03 13:51:17
16
Sideni
1030 17 2021-03-04 23:12:20
17
fLink
1018 2 2019-11-13 14:37:57
18
allfro
1010 0 2021-04-07 21:13:55
19
GuilT
1009 117 2019-08-09 23:04:53
20
killer2
1005 311 2018-10-29 12:29:39
21
fob
976 0 2021-04-26 16:21:15
22
garigouster
872 791 2017-06-05 09:19:11
23
theindian
859 733 2021-06-18 19:12:58
24
nopernik
832 158 2020-09-16 13:00:24
25
yehuju
802 0 2021-04-10 00:40:58
26
V5November
795 0 2021-05-13 02:19:47
27
fffroze
784 8 2020-12-23 03:10:47
28
snowscan
778 17 2020-06-09 21:51:44
29
lolwut
777 0 2018-01-18 12:58:24
30
destiny
758 4 2020-08-23 17:18:52
31
becojo
751 7 2020-12-27 10:03:28
32
marcS0H
737 1 2021-05-20 17:18:53
33
madness
689 574 2021-06-10 16:19:02
34
davidlebr1
689 105 2020-12-05 18:24:14
35
watchdog
669 59 2021-05-26 16:30:20
36
madbat2
665 0 2015-06-15 15:37:39
37
pwndre
643 42 2020-06-05 00:19:47
38
marlo
643 0 2020-09-24 01:21:59
39
turksec
639 8 2017-01-31 06:56:54
40
Pourliver
639 0 2021-02-11 18:35:08
41
lixtelnis
637 3 2020-12-06 17:40:18
42
marcan2020
636 18 2021-06-08 22:24:28
43
rootkitg
634 0 2020-06-21 20:05:30
44
sulliedeclat
627 1 2021-04-03 21:22:10
45
Kileak
611 26 2018-02-23 15:37:57
46
dloser
603 0 2016-05-03 15:48:08
47
Laish
600 191 2021-06-16 19:52:36
48
tihanyin
588 87 2020-07-27 14:43:12
49
xeksec
581 1 2016-10-24 00:59:48
50
FadedForEver
569 5 2020-06-16 02:29:45

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Latest challenges validations

Last validation Challenge User who solved it
2021-06-19 17:28:06 I love tea! merlinthebox
2021-06-19 17:15:00 Bash Jail 1 jbrooker.paystone
2021-06-19 16:22:29 Most Secure Crypto Algo jbrooker.paystone
2021-06-19 15:50:06 Hashing is more secure jbrooker.paystone
2021-06-19 15:49:06 Client side validation is bad! jbrooker.paystone
2021-06-19 14:57:00 Pattern is the key gdenhez
2021-06-19 12:15:38 Hashing is more secure Cata98
2021-06-19 12:11:17 Client side validation is bad! Cata98
2021-06-19 11:59:04 Hash me reloaded jell0
2021-06-19 10:35:03 Then obfuscation is more secure Xvenom

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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