25 Dec

hackerone ctf writeup

Used it to login at app.bountypay.h1ctf.com exploiting css injection to bypass 2FA. AES CTF Write-Up. Can you retrieve the document before he does? from app_style i assume this that we can control an css from a page, first come into my mind was CSS Injection,the backend was using headless chrome and only accepting connection https. This writeup will go over what I tried and the flow of my thoughts throughout the process. Homepage. Given an web application with wildcard scope *.bountyapp.h1ctf.com, as stated at @Hacker0x01 Twitter the goal of the CTF is to help @martenmickos to approve May Bug Bounty payments. first i thought the code was like which is only defined on the ?template=login and i was found that we can select multiple template at once using array parameter. Reading the javascript give me clue that the admin have an ability to upgrade user to admin by sending a GET request, if i have an XSS on the profile name or avatar i can use to trigger the admin execute the upgrade user, but turns out that profile and avatar is cannot broken into an xss as it only accepts [A-Za-z0-9]. Recently HackerOne conducted a h1-212 CTF wherein 3 winners will be selected from those who managed to solve the CTF and submitted write-up. $50 Million CTF from Hackerone - Writeup. by Abdillah Muhamad — on hackerone 01 Jun 2020. 1 PPP (Partai Persatuan Pwning) Writeup Capture The Flag SlashRoot CTF 2. Introduction Since my recent interest in Bug Bounties, while I was at DEFCON 26, I wanted to meet HackerOne staff. A dead end :(, i stuck here quite long because the attack is very obscure and need to analyze every line of code, i assuming that the bot only able to access the ticket and i need to somehow set the payload on the ticket, our profile_avatar value it will return inside the class attribute of an tag, first i add the upgradeToAdmin class but the upgradeToAdmin is need an click trigger i saw in the javascript have tab4 class thathave an ability to trigger a click when we send #tab4 on the url. You can submit your solutions by sending pull requests with your GitHub Flavored Markdown write-up. Hacker101 CTF is part of HackerOne free online training program. Our h1-202 CTF attracted 450 participants and we chose three winners that will be sent to Washington, DC for our live-hacking event, h1-202! December 17, 2017 December 17, 2017 aadityapurani 6 Comments. I was bruteforcing the api.bountypay.h1ctf.com endpoints using the valid X-Token that we got from android application was found an endpoint api.bountypay.h1ctf.com/api/staff which have POST and GET routes as REST API and the GET endpoint was returning the staff_id&name that already have an account, but the POST method was expecting staff_id parameter to generate new account to staff that haven’t generate account, and i was found an twitter account @BountyPayHQ which is mentioned by @Hacker0x01, the @BountyPayHQ is mentioning that they have a new team member which is Sandra Allison in her twitter she uploaded an picture with the staff_id exposed. Using deeplink to solve all the part, i also use Intent Launcher. Introduction: Hello Reviewers, and fellow cybersecurity enthusiasts. Hacker101 is a free educational site for hackers, run by HackerOne. Hackcon CTF’19 – GIMP IT Writeup. Write-up for #h1415’s CTF challenge. Work fast with our official CLI. HackerOne manages invitations for programs by: Daily checking to see if the program has met their report volume target in the last 30-days; Inviting hackers for the program if they're not reaching their report volume target; How Invitations Work. At this layer the only information we have is the target have 5 subdomains, then i perform basic enumeration for all of the domain the basic enumeration is (directory/parameter[cookie,post/get]/header/etc bruteforce). download the GitHub extension for Visual Studio, Model E1337 v2 - Hardened Rolling Code Lock. and i write this evil.css to extract code_1 to code_7 from the server, the listener will get back to you like this image below. 27/04/2019. this mindset help me to keep motivated when encounter a dead end. 2020-06-05 GraphQL and Apollo with Android From Novice to Expert 2020-06-05 Java On Azure Building Spring Boot Microservices 2020-06-05 Raising The Bar Again For Azure Sql Database With Centrally Managed Encryption. We look forward to sharing our next CTF with you! HackerOne H1-2006 2020 CTF Writeup Writeup H1-2006 CTF The Big Picture Given an web application with wildcard scope *.bountyapp.h1ctf.com, as stated at @Hacker0x01 Twitter the goal of the CTF is to help @martenmickos to approve May Bug Bounty payments. August 24, 2019 February 19, 2020 Nihith. thingking of Software Storage the words of backup files always come into my mind and i tried to bruteforce the folder using the proxy and found there is an /upload folder containing BountyPay.apk which is the next challenges https://software.bountypay.h1ctf.com/uploads/BountyPay.apk. Opening this url https://staff.bountypay.h1ctf.com/?template[]=login&template[]=ticket&ticket_id=3582&username=sandra.allison#tab4 will give the valid request to upgrade user to admin, sending this url with base64 encoded will give you a cookie with min privs. HackerOne h1-212 CTF Write-Up/Solution. License. After opening the image in GIMP, we can see another layer in the image. Really a good place to apply all the pen test skills for beginners. Svn using the web URL to connect to my phone without wires the flow of my throughout! 1 PPP ( Partai Persatuan Pwning ) Writeup Capture the Flag SlashRoot CTF 2 a h1-212 wherein. Out who won and read their solution write-ups in this video I showed how to complete the first TRIVIA.... Riscure Embedded Hardware CTF series, and fellow cybersecurity enthusiasts you need retrieve... Choosing/Making … Hey guys in this video I showed how to complete first! Opening the image in GIMP, we can see another layer in the.! Save all the pen test skills for beginners Code Lock h1-2006 CTF write-up recently! To try to meet HackerOne staff an avid CTF'er, I wanted to meet HackerOne staff I heard about h1-212! With SVN using the web URL Hackerone的一场CTF Writeup ; the Fullstack GraphQL Tutorial... 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