OWASP API Security Top 10

Summary

API Security focuses on strategies and solutions to understand and mitigate the unique vulnerabilities and security risks of Application Programming Interfaces (APIs). The version used in this section is OWASP API Security Top 10 2023.

Definitions

Definition	Requirements
API1. Broken Object Level Authorization	030. Avoid object reutilization 033. Restrict administrative access 035. Manage privilege modifications 095. Define users with privileges 176. Restrict system objects 265. Restrict access to critical processes
API2. Broken Authentication	228. Authenticate using standard protocols 229. Request access credentials 264. Request authentication
API3. Broken Object Property Level Authorization	032. Avoid session ID leakages 062. Define standard configurations 176. Restrict system objects 181. Transmit data using secure protocols 261. Avoid exposing sensitive information 266. Disable insecure functionalities 300. Mask sensitive data 375. Remove sensitive data from client-side applications
API4. Lack of Resources & Rate Limiting	072. Set maximum response time 164. Use optimized structures 173. Discard unsafe inputs 320. Avoid client-side control enforcement 342. Validate request parameters 345. Establish protections against overflows
API5. Broken Function Level Authorization	096. Set user's required privileges 176. Restrict system objects 264. Request authentication 320. Avoid client-side control enforcement
API6. Unrestricted Access to Sensitive Business Flows	062. Define standard configurations 265. Restrict access to critical processes
API7. Server Side Request Forgery	173. Discard unsafe inputs 324. Control redirects 348. Use consistent encoding
API8. Security Misconfiguration	043. Define an explicit content type 062. Define standard configurations 131. Deny multiple password changing attempts 134. Store passwords with salt 160. Encode system outputs 266. Disable insecure functionalities
API9. Improper Inventory Management	050. Control calls to interpreted code 262. Verify third-party components 266. Disable insecure functionalities
API10. Unsafe Consumption of APIs	173. Discard unsafe inputs 181. Transmit data using secure protocols 262. Verify third-party components 324. Control redirects

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