Day 21 of 30 Days — 30 Vulnerabilities | OAuth Misconfigurations

Day 21: Mastering OAuth Misconfigurations Vulnerability — Essential Tricks & Techniques Based on Personal Experience and Valuable POCs

[ In collaboration with Abhijeet Kumawat ( his LinkedIn | Twitter)]

Hey geeks, it4chis3c (Twitter) here with one more write-up on tricks & tips to detect OAuth Misconfigurations Vulnerability.

1. Brief Description

What is OAuth?

• OAuth is an open standard for access delegation, commonly used to grant websites or applications limited access to user information without exposing credentials.

What are OAuth Misconfigurations?

• Misconfigurations in OAuth occur when the security measures intended to protect the protocol are improperly implemented, leaving the application vulnerable to various attacks.

Common Risks:

• Token leakage, account takeover, unauthorized API access, and privilege escalation.

2. Where to Detect

1. OAuth Implementations:

• Review third-party integrations or custom OAuth implementations.

2. Authorization and Token Endpoints: