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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Bitcoin: 16vqCWxyjvJPcVAuYnXr6FCvM9mDCsr1Ra | 
Ethereum: 0x6052363B113d90701E35768487643636134f3f2f
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 Slack Channel. https://ringzer0team.slack.com
Challenges
Currently more than 200 challenges are available over 13 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 - 25817 players |
| Position | Username | Points | Gold | Last Validation |
|---|---|---|---|---|
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1218 | 0 | 2018-12-07 22:51:59 | |
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1200 | 14 | 2018-09-25 11:21:27 | |
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1138 | 648 | 2018-12-07 22:49:21 | |
| 4 |
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1129 | 11 | 2017-08-20 17:04:56 |
| 5 |
|
1127 | 33 | 2018-12-16 21:59:44 |
| 6 |
 |
1046 | 0 | 2018-09-11 01:33:11 |
| 7 |
 |
1038 | 0 | 2018-07-19 20:33:11 |
| 8 |
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1005 | 311 | 2018-10-29 12:29:39 |
| 9 |
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1000 | 86 | 2018-08-20 03:05:31 |
| 10 |
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925 | 2 | 2018-12-15 21:36:20 |
| 11 |
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876 | 14 | 2018-12-15 14:24:43 |
| 12 |
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872 | 791 | 2017-06-05 09:19:11 |
| 13 |
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838 | 64 | 2018-12-13 15:58:44 |
| 14 |
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835 | 109 | 2018-08-25 15:03:46 |
| 15 |
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832 | 90 | 2018-12-08 03:09:39 |
| 16 |
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816 | 5 | 2018-12-14 05:00:47 |
| 17 |
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800 | 14 | 2018-11-18 00:42:38 |
| 18 |
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777 | 0 | 2018-01-18 12:58:24 |
| 19 |
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732 | 4 | 2018-03-13 01:51:32 |
| 20 |
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689 | 6 | 2018-11-08 16:43:58 |
| 21 |
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665 | 0 | 2015-06-15 15:37:39 |
| 22 |
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662 | 216 | 2018-11-06 02:22:10 |
| 23 |
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650 | 27 | 2018-10-29 20:29:05 |
| 24 |
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639 | 8 | 2017-01-31 06:56:54 |
| 25 |
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636 | 1 | 2018-07-19 23:24:44 |
| 26 |
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635 | 74 | 2018-12-17 14:41:35 |
| 27 |
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631 | 0 | 2018-11-21 20:12:06 |
| 28 |
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630 | 0 | 2018-12-13 14:44:11 |
| 29 |
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623 | 0 | 2018-12-16 05:29:52 |
| 30 |
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620 | 139 | 2018-12-12 05:29:18 |
| 31 |
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614 | 0 | 2016-12-12 06:53:58 |
| 32 |
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611 | 26 | 2018-02-23 15:37:57 |
| 33 |
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610 | 1 | 2017-11-27 02:33:19 |
| 34 |
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603 | 0 | 2016-05-03 15:48:08 |
| 35 |
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581 | 1 | 2016-10-24 00:59:48 |
| 36 |
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560 | 0 | 2017-10-17 06:16:09 |
| 37 |
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555 | 43 | 2017-03-08 08:01:22 |
| 38 |
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553 | 0 | 2018-04-15 22:00:18 |
| 39 |
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535 | 12 | 2018-03-18 13:53:40 |
| 40 |
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529 | 3 | 2018-12-09 14:12:09 |
| 41 |
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525 | 348 | 2017-12-12 15:27:09 |
| 42 |
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515 | 33 | 2018-11-27 04:27:13 |
| 43 |
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510 | 18 | 2018-12-08 00:23:27 |
| 44 |
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510 | 1 | 2017-06-25 21:31:29 |
| 45 |
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501 | 112 | 2018-10-30 20:28:18 |
| 46 |
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500 | 26 | 2018-06-05 00:33:58 |
| 47 |
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491 | 0 | 2018-12-14 15:42:16 |
| 48 |
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487 | 49 | 2018-06-06 02:00:07 |
| 49 |
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479 | 0 | 2018-12-01 22:40:52 |
| 50 |
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472 | 0 | 2015-04-07 07:13:52 |
Search by username
Latest challenges validations
| Last validation | Challenge | User who solved it |
|---|---|---|
| 2018-12-17 19:29:55 | Why not? | HackThisSite235 |
| 2018-12-17 18:40:18 | Some martian message | kitpusailor |
| 2018-12-17 18:39:25 | Victor you're hidding me something | H4ck3Rb4By |
| 2018-12-17 18:38:39 | Level1 Pwnage Linux x86_64 | H4ck3Rb4By |
| 2018-12-17 16:51:35 | Ascii Art | uso529133 |
| 2018-12-17 16:21:57 | Why not? | kenbarbour |
| 2018-12-17 15:18:38 | Unreadable captcha | AhnMo |
| 2018-12-17 15:04:26 | PHP Fairy | AhnMo |
| 2018-12-17 14:47:45 | Why not? | AhnMo |
| 2018-12-17 14:43:46 | Most Secure Crypto Algo | AhnMo |
The latest write-up with special mention
The latest challenges added
| Challenge | Points | Category |
|---|---|---|
| Hacking skill are optional | 1 | Web |
| Crazy Cat Lady | 3 | Steganography |
| Jabber Part 2 | 7 | Cryptography |
| Jabber | 5 | Cryptography |
| Not just 64 | 4 | Steganography |
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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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