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Automated Testing of Broken Authentication Vulnerabilities in Web APIs with AuthREST

2025/09/12 by Davide Corradini, Corradini, Davide, Mariano Ceccato +3
Computer Science · #Advanced Malware Detection Techniques #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #Software Engineering (cs.SE) #Software Testing and Debugging Techniques #Web Application Security Vulnerabilities

paper · pdf · doi:10.48550/arxiv.2509.10320

openalex publication_date 2025/09/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present AuthREST, an open-source security testing tool targeting broken authentication, one of the most prevalent API security risks in the wild. AuthREST automatically tests web APIs for credential stuffing, password brute forcing, and unchecked token authenticity. Empirical results show that AuthREST is effective in improving web API security. Notably, it uncovered previously unknown authentication vulnerabilitiesin in four public APIs.

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