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.
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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.
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The RingZer0 Team Online CTF is now proudly hosted using Claranet FR cloud service.
Challenges
Currently more than 300 challenges are available over 15 categories. Have fun resolving them.
Register
Your first time here? First step register an account, that way you will be able to login and start solving challenges.
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 - 37912 players |
| Position | Username | Points | Gold | Last Validation | Special Mention |
|---|---|---|---|---|---|
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1480 | 146 | 2021-01-21 20:43:34 | ||
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1410 | 2 | 2021-01-25 00:38:10 | ||
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1410 | 0 | 2021-01-25 07:47:59 | ||
| 4 |
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1244 | 17 | 2020-10-30 00:02:53 | |
| 5 |
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1231 | 684 | 2021-01-10 20:44:27 | |
| 6 |
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1213 | 210 | 2020-12-16 17:47:45 | |
| 7 |
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1201 | 0 | 2018-09-25 11:21:27 | |
| 8 |
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1129 | 11 | 2017-08-20 17:04:56 | |
| 9 |
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1119 | 0 | 2020-12-27 06:20:59 | |
| 10 |
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1089 | 87 | 2021-01-13 16:35:19 | |
| 11 |
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1086 | 8 | 2020-12-26 14:23:23 | |
| 12 |
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1085 | 4 | 2021-01-16 11:09:32 | |
| 13 |
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1052 | 74 | 2021-01-05 21:30:35 | |
| 14 |
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1047 | 97 | 2020-02-03 13:51:17 | |
| 15 |
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1020 | 17 | 2020-10-24 22:40:51 | |
| 16 |
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1018 | 2 | 2019-11-13 14:37:57 | |
| 17 |
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1009 | 117 | 2019-08-09 23:04:53 | |
| 18 |
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1006 | 0 | 2021-01-08 10:18:10 | |
| 19 |
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1005 | 311 | 2018-10-29 12:29:39 | |
| 20 |
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937 | 39 | 2021-01-10 05:12:05 | |
| 21 |
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912 | 0 | 2021-01-25 10:42:13 | |
| 22 |
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872 | 791 | 2017-06-05 09:19:11 | |
| 23 |
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832 | 158 | 2020-09-16 13:00:24 | |
| 24 |
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784 | 8 | 2020-12-23 03:10:47 | |
| 25 |
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778 | 17 | 2020-06-09 21:51:44 | |
| 26 |
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777 | 0 | 2018-01-18 12:58:24 | |
| 27 |
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758 | 4 | 2020-08-23 17:18:52 | |
| 28 |
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752 | 619 | 2021-01-02 14:13:39 | |
| 29 |
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751 | 7 | 2020-12-27 10:03:28 | |
| 30 |
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750 | 0 | 2021-01-04 15:24:54 | |
| 31 |
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735 | 0 | 2020-09-05 04:09:06 | |
| 32 |
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723 | 1 | 2020-12-30 14:58:52 | |
| 33 |
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689 | 105 | 2020-12-05 18:24:14 | |
| 34 |
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665 | 0 | 2015-06-15 15:37:39 | |
| 35 |
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643 | 42 | 2020-06-05 00:19:47 | |
| 36 |
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643 | 0 | 2020-09-24 01:21:59 | |
| 37 |
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639 | 8 | 2017-01-31 06:56:54 | |
| 38 |
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637 | 3 | 2020-12-06 17:40:18 | |
| 39 |
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634 | 0 | 2020-06-21 20:05:30 | |
| 40 |
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625 | 41 | 2020-08-30 06:58:07 | |
| 41 |
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624 | 1 | 2019-11-26 01:44:50 | |
| 42 |
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618 | 0 | 2020-06-29 22:29:23 | |
| 43 |
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613 | 517 | 2020-02-24 16:22:49 | |
| 44 |
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611 | 26 | 2018-02-23 15:37:57 | |
| 45 |
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611 | 18 | 2020-12-08 21:33:10 | |
| 46 |
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603 | 0 | 2016-05-03 15:48:08 | |
| 47 |
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595 | 194 | 2020-12-26 18:37:49 | |
| 48 |
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588 | 93 | 2020-07-27 14:43:12 | |
| 49 |
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581 | 1 | 2016-10-24 00:59:48 | |
| 50 |
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569 | 5 | 2020-06-16 02:29:45 |
Search by username
Latest challenges validations
| Last validation | Challenge | User who solved it |
|---|---|---|
| 2021-01-26 02:32:19 | Words mean something? | elchals |
| 2021-01-26 02:11:32 | File recovery | adrian2117 |
| 2021-01-26 01:59:13 | You're Drunk! | adrian2117 |
| 2021-01-26 01:52:25 | Some martian message | adrian2117 |
| 2021-01-25 21:19:54 | Then obfuscation is more secure | pynchon |
| 2021-01-25 21:08:54 | Hashing is more secure | pynchon |
| 2021-01-25 21:04:31 | Client side validation is bad! | pynchon |
| 2021-01-25 20:22:44 | PHP feature or 0day? | nostoc |
| 2021-01-25 20:11:59 | Gift as a Service Part 2 | nostoc |
| 2021-01-25 19:48:42 | Can you see through the star | pynchon |
The latest write-up with special mention
The latest challenges added
| Challenge | Points | Category |
|---|---|---|
| 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 |
| This malware excels Part 4 | 5 | Malware Analysis |
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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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