OWASP API Security Vulnerabilities 2021

OWASP Top 10 API Security is a list of the most common and critical security risks associated with APIs (Application Programming Interfaces). It is published by the Open Web Application Security Project (OWASP), a nonprofit organization dedicated to improving the security of software.

The OWASP API security refers to the measures taken to protect APIs (Application Programming Interfaces) from attacks and unauthorized access. APIs allow different software systems to communicate with each other and share data. They provide a way for different software applications to interact with one another and exchange information, making them an essential part of modern software development. However, because APIs allow access to sensitive data and resources, they need to be secure to prevent unauthorized access and misuse.

What is OWASP API Security and Why is It Important?

OWASP Top 10 API Security is a list of the most common and critical security risks associated with APIs (Application Programming Interfaces). It is published by the Open Web Application Security Project (OWASP), a nonprofit organization dedicated to improving the security of software and mitigate the unique API vulnerabilities. 

OWASP API security is important for several reasons:

  1. Data protection: APIs allow access to sensitive data, such as personal information, financial data, and proprietary business information. Without proper security measures, this data could be accessed and misused by unauthorized parties.
  2. Integrity: APIs allow different software systems to communicate and exchange information. If an API is compromised, it can result in incorrect or misleading information being transmitted, leading to errors and confusion.
  3. Performance: API attacks, such as Denial of Service (DoS) attacks, can cause disruptions and slowdowns in the system, resulting in poor performance and a poor user experience.
  4. Reputation: If an API is not secure and is hacked, it can damage the reputation of the company and lead to a loss of trust from customers and partners.

To ensure API security, it is important to implement measures such as authentication, authorization, and encryption to prevent unauthorized access and protect sensitive data. It is also important to regularly test and monitor APIs to identify and address potential vulnerabilities.

The 3 Pillars of API Security

OWASP top 10 API Security Vulnerabilities Risks

OWASP API Security Vulnerability #1Broken Object Level Authorization
OWASP API Security Vulnerability #2Broken User Authentication
OWASP API Security Vulnerability #3Excessive Data Exposure
OWASP API Security Vulnerability #4Lack of resources & rate limiting
OWASP API Security Vulnerability #5Broken Function Level Authorization
OWASP API Security Vulnerability #6Mass Assignment
OWASP API Security Vulnerability #7Security Misconfiguration
OWASP API Security Vulnerability #8Injection
OWASP API Security Vulnerability #9Improper Asset Management
OWASP API Security Vulnerability #10Insufficient Logging & Management
OWASP Top 10 API Security Risks

OWASP API Vulnerability #1: Broken Object Level Authorization

What is Broken Object Level Authorization?

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