Previous Card
Building a web search engine from scratch in two months with 3 billion neural embeddings
This guide provides a comprehensive security overview for legally pentesting crypto wallet browser extensions. It covers common vulnerabilities in wallet architecture, private key handling, access control, and various attack vectors like supply chain issues, XSS, DoS, and UI/UX deception. The aim is to help uncover security flaws and improve wallet integrity. ✨
Article Points:
1
Web3 wallet extensions are critical; pentesting uncovers hidden security flaws.
2
Supply chain attacks via dependencies pose high risk to wallet integrity.
3
Secure private key handling is paramount: avoid plaintext, audit encryption, clear memory.
4
Broken access control allows unauthorized actions like silent transaction signing.
5
UI/API vulnerabilities (XSS, Clickjacking, deceptive UI) can mislead users.
6
Domain-based issues (spoofing, misconfigurations) amplify wallet security risks.
Introduction & Architecture
Critical Web2-Web3 bridge
Extension components
Supply Chain & Secrets
Dependency Confusion
Vulnerable Dependencies
Hardcoded Secrets
Key & Access Control
Private Key Handling
Broken Access Control
Client-Side & UI Exploits
Cross Site Scripting
Clickjacking Attack
Deceptive UI/UX
Clipboard Based Attacks
Availability & External Risks
Denial of Service
Domain Based Issues
Security Best Practices