🔧 $35,000 Bounty: How Inappropriate Access Control Led to GitLab Account Takeover
Nachrichtenbereich: 🔧 Programmierung
🔗 Quelle: dev.to
Introduction
In cybersecurity, vulnerabilities can arise from the most unexpected defects. A recent account takeover vulnerability via password reset without user interaction demonstrated how a simple access control flaw could lead to full account compromise.
In this article, we will explain how the vulnerability was identified, how attackers exploited it, and how developers can secure web applications from similar threats.
Timeline
Date Reported: December 20, 2023
Severity: Critical (10.0 CVSS)
Bounty Awarded: $35,000
Disclosed: February 26, 2025
What is Account Takeover via Password Reset?
Password reset-based account takeover occurs when attackers manipulate the password reset feature of an application to gain unauthorized access to a user’s account. This flaw is often caused by improper validation or missing authorization checks.
How the Vulnerability Worked
The vulnerability was found in GitLab’s password reset functionality. It allowed attackers to receive password reset links intended for victims by modifying the request payload.
Steps to Exploit
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