API2:2023: Broken Authentication
Authentication mechanisms that are flawed, missing, or implemented incorrectly. Includes weak credential handling, missing rate limits on auth endpoints, JWT validation flaws.
How it's found
Found by probing API authentication endpoints for weak JWT validation, missing multi-factor enforcement, and tolerance of credential stuffing.
Standards mapping
Where this fits in a TurboPentest engagement
This weakness is not covered by the automated black-box pentest. IntegSec pentesters cover it in a manual engagement.
Frequently asked questions
What is API2:2023 Broken Authentication?
Authentication mechanisms that are flawed, missing, or implemented incorrectly. Includes weak credential handling, missing rate limits on auth endpoints, JWT validation flaws.
How do you find Broken Authentication?
Found by probing API authentication endpoints for weak JWT validation, missing multi-factor enforcement, and tolerance of credential stuffing.
Which CWEs map to API2:2023?
API2:2023 maps to CWE-287, CWE-306, CWE-798.
Does TurboPentest test for Broken Authentication?
This weakness is not covered by the automated black-box pentest. IntegSec pentesters cover it in a manual engagement.
Related OWASP categories
- OWASP API Security Top 10API1:2023: Broken Object Level Authorization
- OWASP API Security Top 10API3:2023: Broken Object Property Level Authorization
- OWASP API Security Top 10API4:2023: Unrestricted Resource Consumption
- OWASP API Security Top 10API5:2023: Broken Function Level Authorization
- OWASP API Security Top 10API6:2023: Unrestricted Access to Sensitive Business Flows
- OWASP API Security Top 10API7:2023: Server Side Request Forgery (SSRF)
Written and reviewed by
Michel Chamberland - Founder & CEO, IntegSec
CISSP, OSCP, OSCE, CEH, GIAC, CCSK · 20+ years in offensive security
Michel has spent 20+ years on offensive security teams including IBM X-Force Red and Trustwave SpiderLabs, leading penetration tests, red team engagements, and breach response for Fortune 500 customers. He is the founder of IntegSec and the architect of TurboPentest.
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