HackerOne: Making program preference -> program visibilty feature usless and disclosing API Identifier in the progress and data that may cause potential IDORS.

@spongebhav identified a vulnerability that let a victim believe their program membership wasn't shown on their profile, when in reality, it was. This could be used to identify system users of a program when the program blocked this...

MTN Group: [play.mtn.co.za] Application level DoS via xmlrpc.php

Description Wordpress that have xmlrpc.php enabled for pingbacks, trackbacks, etc. can be made as a part of a huge botnet causing a major DOS/SSRF. The website play.mtn.co.za has the xmlrpc.php file enabled and could thus be potentially used for such an attack against other victim hosts. hackeron...

Ruby on Rails < 6.0.3.2 DoS Vulnerability

Ruby on Rails is prone to a denial of service DoS vulnerability. SPDX-FileCopyrightText: 2020 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

U.S. Dept Of Defense: Remote Code Execution via CVE-2019-18935

Summary: The website at https://█████████/apps/XTRAHome/Telerik.Web.UI.WebResource.axd?type=rau is vulnerable to CVE-2017-11317 and CVE-2019-18935, allowing an attacker to upload arbitrary files and gain remote code execution on the underlying system. Step-by-step Reproduction Instructions 1...

Verizon Media, PayPal, Twitter Top Bug-Bounty Rankings

Bug-bounty programs have become a popular way for vendors to root out security flaws in their platforms, attracting talented white-hats with the promise of big rewards. According to HackerOne’s 2020 List of the Top 10 Bug Bounty Programs on its platform, Verizon Media, PayPal and Uber are in the...

Open-Xchange: Null dereference or redundant null check in `mail_crypt_load_global_private_key` for plugin mail-crypt

In this function, we check once if errorr is not NULL in if enctype == DCRYPTKEYENCRYPTIONTYPEPASSWORD / Fail here if password is not set since openssl will prompt for it otherwise / if keypassword == NULL if errorr != NULL errorr = tstrdupprintf"%s: %s unset, no " "password to decrypt the key",...

Courier: Missing rate limit in signup Form

Hello Team , Description When signing up for an account, you enter your email. When this email is already in use, the server responds with "UserConfirmed":true,"UserSub":"ae294fff-6d55-407d-9676-1f3518029037" This in not a problem, but the fact that you could send this request unlimited times is...

U.S. Dept Of Defense: Stored XSS at ██████userprofile.aspx

Summary: Stored XSS vulnerability exists at ██████████userprofile.aspx under "say something about yourself...". XSS can be used for a variety of attacks. Impact XSS can be used to steal cookies, password or to run arbitrary code in the victim's browser. Step-by-step Reproduction Instructions 1...

Needle - Instant Access To You Bug Bounty Submission Dashboard On Various Platforms + Publicly Disclosed Reports + #Bugbountytip

Chrome extension for Instantaccess to your bug bounty submission dashboard of various platforms + publicly disclosed reports + bugbountytip Needle is the only chrome extension you may need to have one click access to your bug submissions across various platforms. No need to create any bookmark,...

h1-ctf: [H1-2006 2020] Bounty Pay CTF challenge

H1-2006 2020 Bounty Pay CTF challenge Hi there! This is my H1-2006 CTF writeup submission. First of all, thanks for the great challenge! This was my first H1 CTF that I played. I really enjoyed doing it and I learned new things solving this challenge. In my case, it was the demonstration that I...

h1-ctf: [h1-2006 2020] CTF Walkthrough

h1-2006-ctf Writeup June 2020 https://hackerone.com/h1-ctf/ The Competition Begins! The tweet announces the CTF challenge. Looks like we will need to find a way to process some payments. F863442 Initial Exploring Reading up on the extended description at https://hackerone.com/h1-ctf/ reveals that...

h1-ctf: [h1-2006 2020] Write up for H1-2006 CTF

I huffed and puffed my way up a flight of stairs into a dimly lit, dusty room, looking for Sherlock. As I made way through scattered books, I exclaimed, "Sherlock, wake up! It’s that time of the year. h1-ctf, a chance to get an invitation to hackerone’s live hacking event. “zer0ttl, of course! Yo...

h1-ctf: [H1-2006 2020] How I solved my first H1 CTF

Introduction: Hello! My name is @cr33pbp0y and I going to tell you how I resolved my first HackerOne CTF. Prelude One day, I was reading some tweets about some new vulnerabilities and new hunters adquisitions when the Great H tweeted: F861267 I thought: "WoW, a new virtual event!! It could be...

h1-ctf: [H1-2006 2020] Exploiting multiple vulnerabilities to get hacker's payment ensured

Last week, Hackerone’s CEO Marten lost his credentials for BountyPay. A tweet from hackerone’s official twitter account asked for help from ethical hackers and bounty hunters to help the CEO recover his credentials and insure May’s payments. As an active bug hunter on Hackerone, I decided to take...

h1-ctf: [H1-2006 2020] From multiple vulnerabilities to complete ATO on any customer account and staff admin

First of all, thanks for the awesome CTF. I enjoyed it very much : Summary The CTF was about helping HackerOne's beloved CEO, @martenmickos, to approve May bug bounty payments after he has lost his login details for BountyPay. It all started with this tweet: F860982 And as you all know, I had to...

h1-ctf: [H1-2006 2020] CTF write-up

Summary: Hello HackerOne team! I finally managed to solve this long but really nice CTF! Here is the flag: ^FLAG^736c635d8842751b8aafa556154eb9f3$FLAG$. You can access my writeup at https://diego95root.github.io/posts/H1-2006-CTF/. It's password protected, the password is the flag. Thank you so...

h1-ctf: h1-ctf writeup , finally paid the payments by chaining multiple bugs

Summary: Ultimate aim is to pay the payments of hackerone using bounty pay with no use privileges at starting. Given scope is : .bountypay.h1ctf.com Enumerated subdomains are : 1. www.bountypay.h1ctf.com 2. app.bountypay.h1ctf.com 3. staff.bountypay.h1ctf.com 4. api.bountypay.h1ctf.com 5...

U.S. Dept Of Defense: Subdomain takeover of ███

Summary: The subdomain ██████ had an CNAME record pointing to an unclaimed ███████ webservice. This is a high severity security issue because an attacker can register the subdomain on ███ and therefore can own the subdomain █████████. Description: The dangling CNAME record of █████████ is pointin...

h1-ctf: [H1-2006 2020] [CTF Writeup] A story about Bounty Payments, Collaboration & Community

H1-2006 CTF Writeup This is a story about both solving a CTF and, most importantly, on how to make friends during the journey and learn a lot a valuable things for the future. On a Friday evening I saw this tweet from HackerOne: F853545 Honestly, last CTF was really hard so I didn't really though...

h1-ctf: [H1-2006 2020] The Story of Making Bounty Hunters Happy

Disclaimer: I will try to make this post a fun read, given that whoever triagges will be probably going through similar write-ups again and again. The beginning: Being away from HackerOne over a month had made me rusty. Although the call to arms for Mr. Mickos and the community could not be left...