{"@attributes":{"version":"2.0"},"channel":{"title":"tqts.ar","link":"https:\/\/tqts.ar\/","description":"Recent content on tqts.ar","generator":"Hugo -- gohugo.io","language":"en-us","copyright":"Written by tqts. All content under Creative Commons ","lastBuildDate":"Fri, 25 Feb 2022 01:10:01 -0300","item":[{"title":"Solving SherlockCTF","link":"https:\/\/tqts.ar\/post\/solving-sherlockctf\/","pubDate":"Fri, 25 Feb 2022 01:10:01 -0300","guid":"https:\/\/tqts.ar\/post\/solving-sherlockctf\/","description":"\n        \n          \n            <p>SherlockCTF was a collaborative CTF organized by <a href=\"https:\/\/sherlock.xyz\">Sherlock<\/a> and <a href=\"https:\/\/secureum.xyz\">Secureum<\/a>, for the top 32 participants in february's RACE event. Each participant submitted a CTF level, and for 7 days, the competition was opened. I managed to score 32 points.<\/p>\n          \n          \n        \n      "},{"title":"Solving DamnVulnerableDeFi - Part 1 - Levels 1 to 4","link":"https:\/\/tqts.ar\/post\/damnvulnerabledefi-1\/","pubDate":"Sat, 01 Jan 2022 12:10:12 -0300","guid":"https:\/\/tqts.ar\/post\/damnvulnerabledefi-1\/","description":"\n        \n          \n            <p>First part of the solutions\/exploits for the Most Vulnerable DeFi (tm) out there.<\/p>\n          \n          \n        \n      "},{"title":"Solving Ethernaut - Part 5 - Levels 21 to 25","link":"https:\/\/tqts.ar\/post\/ethernaut-5\/","pubDate":"Mon, 15 Nov 2021 17:11:01 -0300","guid":"https:\/\/tqts.ar\/post\/ethernaut-5\/","description":"\n        \n          \n            <p>Fifth (and last?) part of the solutions to Ethernaut. The challenges in this part are mostly vulnerabilities on more complex contracts, that mimic real exploits.<\/p>\n          \n          \n        \n      "},{"title":"Solving Ethernaut - Part 4 - Levels 16 to 20","link":"https:\/\/tqts.ar\/post\/ethernaut-4\/","pubDate":"Mon, 15 Nov 2021 12:11:01 -0300","guid":"https:\/\/tqts.ar\/post\/ethernaut-4\/","description":"\n        \n          \n            <p>Fourth part of the solutions to Ethernaut. This time the challenges get harder and more interesting.<\/p>\n          \n          \n        \n      "},{"title":"Solving Ethernaut - Part 3 - Levels 11 to 15","link":"https:\/\/tqts.ar\/post\/ethernaut-3\/","pubDate":"Mon, 15 Nov 2021 11:11:01 -0300","guid":"https:\/\/tqts.ar\/post\/ethernaut-3\/","description":"\n        \n          \n            <p>Third part of the solutions to Ethernaut. More fun levels, and a little bit harder than before.<\/p>\n          \n          \n        \n      "},{"title":"Solving Ethernaut - Part 2 - Levels 6 to 10","link":"https:\/\/tqts.ar\/post\/ethernaut-2\/","pubDate":"Mon, 15 Nov 2021 07:11:01 -0300","guid":"https:\/\/tqts.ar\/post\/ethernaut-2\/","description":"\n        \n          \n            <p>Second part of the solutions to Ethernaut. Levels start to get progressively harder, and a lot more interesting to solve and learn.<\/p>\n          \n          \n        \n      "},{"title":"Solving Ethernaut - Part 1 - Levels 0 to 5","link":"https:\/\/tqts.ar\/post\/ethernaut-1\/","pubDate":"Mon, 15 Nov 2021 07:10:01 -0300","guid":"https:\/\/tqts.ar\/post\/ethernaut-1\/","description":"\n        \n          \n            <p>Another Solidity and Ethereum security CTF game. This time we will be solving <a href=\"https:\/\/ethernaut.openzeppelin.com\/\">Ethernaut<\/a>, the game hosted by OpenZeppelin.<\/p>\n          \n          \n        \n      "},{"title":"Solving CaptureTheEther - Part 5 of 5 - Miscellaneous","link":"https:\/\/tqts.ar\/post\/capturetheether-5\/","pubDate":"Wed, 10 Nov 2021 02:14:25 -0300","guid":"https:\/\/tqts.ar\/post\/capturetheether-5\/","description":"\n        \n          \n            <p>This last category of challenges is a mix of various types of vulnerabilities that don't really fit into any of the other categories.<\/p>\n          \n          \n        \n      "},{"title":"Solving CaptureTheEther - Part 4 of 5 - Accounts","link":"https:\/\/tqts.ar\/post\/capturetheether-4\/","pubDate":"Wed, 10 Nov 2021 02:14:24 -0300","guid":"https:\/\/tqts.ar\/post\/capturetheether-4\/","description":"\n        \n          \n            <p>These challenges are meant to teach about the fine details of EVM-compatible networks accounts, contract deployment and cryptographic key pairs.<\/p>\n          \n          \n        \n      "},{"title":"Solving CaptureTheEther - Part 3 of 5 - Math","link":"https:\/\/tqts.ar\/post\/capturetheether-3\/","pubDate":"Wed, 10 Nov 2021 02:14:23 -0300","guid":"https:\/\/tqts.ar\/post\/capturetheether-3\/","description":"\n        \n          \n            <p>Third post for the CaptureTheEther CTF writeups. Now the focus is on mathematical functions.<\/p>\n          \n          \n        \n      "},{"title":"Solving CaptureTheEther - Part 2 of 5 - Lotteries","link":"https:\/\/tqts.ar\/post\/capturetheether-2\/","pubDate":"Wed, 10 Nov 2021 02:14:22 -0300","guid":"https:\/\/tqts.ar\/post\/capturetheether-2\/","description":"\n        \n          \n            <p>This is the second post of a total of five, for the CaptureTheEther CTF writeups. This time, the focus will be on the <em>Lotteries<\/em> category\nof challenges. Most levels here will require the player to code and deploy new contracts to the network, and interact with them.<\/p>\n          \n          \n        \n      "},{"title":"Solving CaptureTheEther - Part 1 of 5 - Warmup","link":"https:\/\/tqts.ar\/post\/capturetheether-1\/","pubDate":"Wed, 10 Nov 2021 02:14:21 -0300","guid":"https:\/\/tqts.ar\/post\/capturetheether-1\/","description":"\n        \n          \n            <p>This is the first post in a series about the Ethereum security introductory CTF &quot;CaptureTheEther&quot;. There will be a total of five posts,\neach one of them focused in one of the categories of the game.\nFor each level I'll describe the contract, the vulnerability, the solution I used and a conclusion about what to check when developing\nor auditing smart contracts.<\/p>\n          \n          \n        \n      "}]}}