h1-ctf: [h1-2006 2020] Chained vulnerabilities lead to account takeover

Summary Mårten Mickos lost his account for BountyPay, the new service HackerOne is using to pay bug bounties. In this report I explain how I accessed a customer's account using a log file and bypassed its 2FA validation. I then leverage an open redirect bug to gain access to an internal server an...

h1-ctf: [H1-2006 2020] Bypassing access control checks by modifying the URL, internal application state, or the HTML page, or using a custom API attack tool

H1-2006 CTF Writeup F859938 Summary: Access control enforces policy such that users cannot act outside of their intended permissions. Failures typically lead to unauthorized information disclosure, modification or destruction of all data, or performing a business function outside of the limits of...

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] In-depth resolution of the h1-2006 CTF

H1-2006 Write-up bountypay.h1ctf.com First of all, huge thanks to the creators for this CTF, it was really fun and got me to improve a lot ! It was my first h1 ctf, and it for sure won't be my last ! For this report, I'll try to define for each step : an abstract of what was the bug the real life...

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...

h1-ctf: [H1-2006 2020] CTF Writeup

Summary: The CTF's objective could be found in the following Twitter post: F858468 As outlined on https://hackerone.com/h1-ctf, all subdomains of bountypay.h1ctf.com are in scope. Doing subdomain enumeration revealed the following subdomains: api.bountypay.h1ctf.com app.bountypay.h1ctf.com...

h1-ctf: [H1-2006 2020] CTF Writeup

Summary: Multiple Vulnerabilities leading to full account takeover and access to restricted functions 1. Information Disclosure 2. Login 2FA Bypass 3. SSRF 4. Hardcoded validation 5. Sensitive information disclosure 6. Privilege Escalation 7. Payments 2FA Bypass through SSRF Steps To Reproduce: 0...

8x8: 2FA Disable With Wrong Password - Response Tampering.

The application contained a business logic flaw that resulted in missing validation when removing 2FA on the authenticated account...

h1-ctf: [H1-2006 2020] CTF writeup

Context Well, against all expectations you finally get it, you got the flag! Let's go back in time to remember how. --- Twitter Once upon a time As always the CTF starts with a tweet: F855948 --- Subdomains According to the policy page, .bountypay.h1ctf.com is in scope. You decide to scan...

h1-ctf: [H1-2006 2020] "Swiss Cheese" design style leads to helping Mårten Mickos pay poor hackers

Summary: Several vulnerabilities in the bountypay application leads to unauthorised access, information disclosure, SSRF and other fun stuff. Steps To Reproduce: This is how I helped Mårten Mickos pay the poor hackers who had been waiting so long for their bounties. First part: Web I started by...

h1-ctf: [H1-2006 2020] Multiple vulnerabilities lead to CEO account takeover and paid bounties

Summary: 1. A publicly accessible logfile discloses a user's credentials 2. Weak 2FA implementation allows user account takeover 3. Path injection in user's cookie allows SSRF, bypassing the IP restriction to list available builds on https://software.bountypay.h1ctf.com/ 4. API token leak in...

h1-ctf: [H1-2006 2020] Connecting the dots to send hackers their Bug Bounty

Hello team Thank you so much for organising the ctf it has helped a lot to learn and improve my knowledge now lets got to solution i have preapred short videos as a refrence for each part and broken down ctf in 8 challenges. So the ctf was broken into: 1. Gathering leaking to gain login credentia...

h1-ctf: [H1-2006 2020] CTF Writeup!

The Beginning ===================== The scope of the H1-2006 CTF was .bountypay.h1ctf.com. After opening https://bountypay.h1ctf.com, I noticed that on the top left of the screen there was a dropdown with two login pages: one for Customers https://app.bountypay.h1ctf.com/ and one for Staff...

Hackers infect authentic 2FA app to infect Mac devices with malware

By Sudais Asif It is believed that an infamous group is behind this malware. This is a post from HackRead.com Read the original post: Hackers infect authentic 2FA app to infect Mac devices with malware...

Lazarus Group Hides macOS Spyware in 2FA Application

The North Korea-linked cyberthreat group known as Lazarus Group has added a new variant of the Dacls remote-access trojan RAT to its arsenal of spy gear, designed specifically for the Mac operating system. Dacls was first discovered last December targeting Windows and Linux platforms. The new...

New Mac variant of Lazarus Dacls RAT distributed via Trojanized 2FA app

This blog post was authored by Hossein Jazi, Thomas Reed and Jérôme Segura. We recently identified what we believe is a new variant of the Dacls Remote Access Trojan RAT associated with North Korea's Lazarus group, designed specifically for the Mac operating system. Dacls is a RAT that was...

Housemates. The new Red Team?

You have the VPN set up, you have 2FA, you have a good enforced password policy, firewalls are in place, you even managed to squeeze in some remote training to make employees more aware of potential phishing. You stop, breathe a sigh of relief, and then think… I've no idea who my employees live...

New nasty Android EventBot malware infects devices by evading 2FA

By Sudais Asif Another day, another Android malware but this one evades detection by bypassing 2FA. Here's how... This is a post from HackRead.com Read the original post: New nasty Android EventBot malware infects devices by evading 2FA...

WiKID 2FA Enterprise Server Cross-Site Scripting (CVE-2019-17116)

A cross-site scripting vulnerability exists in WiKID 2FA Enterprise Server. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system...

How Federal Employees Can Protect their Agencies During the Pandemic

It’s no secret that the way the world works has shifted since COVID-19 came on the scene. Operations are going remote and, for many government and federal agencies, this is new territory. This novelty is compounded by the fact that nation-state attacks are—and have been—on the rise for quite some...