API5:2023: Broken Function Level Authorization
Attackers can call admin/elevated functions with regular-user credentials by manipulating endpoints or HTTP methods.
How it's found
Identified by re-issuing admin and privileged API calls under low-privilege credentials to test for vertical privilege escalation.
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 API5:2023 Broken Function Level Authorization?
Attackers can call admin/elevated functions with regular-user credentials by manipulating endpoints or HTTP methods.
How do you find Broken Function Level Authorization?
Identified by re-issuing admin and privileged API calls under low-privilege credentials to test for vertical privilege escalation.
Which CWEs map to API5:2023?
API5:2023 maps to CWE-285, CWE-862, CWE-863.
Does TurboPentest test for Broken Function Level Authorization?
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 10API2:2023: Broken Authentication
- OWASP API Security Top 10API3:2023: Broken Object Property Level Authorization
- OWASP API Security Top 10API4:2023: Unrestricted Resource Consumption
- 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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