BROKEN AUTHORIZATION IN APIS: INTRODUCING AUTOSWAGGER

Summary from the TLDR InfoSec newsletter

Intruder's Autoswagger is a free open-source tool that automatically scans APIs for authorization vulnerabilities by parsing OpenAPI/Swagger documentation to identify endpoints lacking proper authentication checks. The tool discovered critical security flaws across major organizations during bug bounty testing, including exposed credentials, customer data, and database access at companies like Microsoft, multinational tech firms, and beverage corporations. Autoswagger highlights how self-documenting APIs increase attack surface by providing attackers with detailed endpoint information, making these simple authorization weaknesses easier to exploit at scale.